Are you excited about building the systems that keep Wolt running for millions of customers every day?

We’re looking for a pragmatic, product-minded Backend Engineer with strong skills in Python or Go to join our Consumer Platform team – the group behind the core infrastructure and reliability that make Wolt fast, stable, and scalable.

This is a role at the intersection of backend engineering, platform thinking, and reliability. You’ll work on the systems that power critical purchase flows and the foundations that other teams build on, shaping how Wolt performs at scale.

What you’ll be doing

Day-to-day in this role, you’ll:

• Build and operate high-throughput backend services in Python and Go
• Work across the full development lifecycle, from system design to deployment and monitoring
• Improve the scalability and reliability of Wolt’s core platform
• Design and develop shared services, internal tooling, and platform-level capabilities used across teams
• Drive cross-team initiatives that raise engineering standards and system resilience
• Collaborate with product teams and other engineering groups to support critical consumer-facing flows

Why this role

• Work on the backbone of Wolt: Consumer Platform sits at the core of Wolt’s engineering organization. The systems you build power everything from purchase flows to platform-wide reliability, with direct impact on millions of users.
• An AI-first engineering team: We don't use AI as a productivity add-on - we treat agentic coding as a core engineering discipline. We expect our engineers to build with AI agents, to challenge what's possible when the human-in-the-loop is a multiplier rather than a bottleneck, and to push the boundaries of what a small, focused team can ship.
• High-impact, cross-team work: This team is known for driving initiatives that span across Wolt. Recent work includes scaling the purchase core to support split payments, building API gateway capabilities for critical flows, and improving reliability standards across the platform.
• A small team with high leverage: You’ll work in a focused, experienced team where engineers take ownership, move quickly, and influence both technical direction and platform strategy.

AI-First Engineering in Consumer Platform

We’re building platform teams at the forefront of agentic software development. This goes beyond code generation. We’re interested in engineers who:

• Design workflows where AI agents assist or own parts of the development loop
• Think critically about what should be automated versus human-reviewed
• Build tooling and abstractions that make AI-assisted backend development safer and more effective
• Stay curious about new models, tools, and approaches, and form strong opinions on what actually works

If you find yourself asking “how should this system be built with AI in mind?” you’ll fit right in!

Our Tech Stack

Python, Go, MongoDB, Redis, Kubernetes, AWS, Datadog, CI/CD pipelines

What we’re looking for

• Strong backend fundamentals: Experience building production-grade backend services using Python, Go, or similar languages.
• AI-first development mindset: You use AI tools in your daily workflow and think critically about how they improve how you build, debug, and design systems.
• Experience at scale: You’ve worked on high-traffic production systems and understand the challenges of reliability, performance, and scalability.
• System design thinking: You have solid fundamentals in designing distributed systems and care about efficiency, robustness, and maintainability.
• End-to-end ownership mindset: You take responsibility beyond implementation, from shaping solutions to ensuring systems are stable, observable, and production-ready.
• Ability to work independently and drive projects: You’re comfortable owning work end-to-end, navigating ambiguity, and moving initiatives forward with minimal guidance.
• Collaboration and communication: You work effectively across teams and communicate clearly in multi-team engineering environments.
• Reliability and operational awareness: Experience with observability, on-call practices, or reliability engineering is a plus.
• Platform and tooling exposure: Experience contributing to shared systems, internal tooling, or platform engineering initiatives is a plus.

About You 

• You've built and shipped real software - products, platforms, APIs, apps - and you know what it takes to keep things running reliably in production. You have opinions about architecture but hold them lightly. You write tests. You read the alerts. You don't leave loose ends.
• What sets you apart right now is that you're genuinely excited about where engineering is going. You've been experimenting with AI agents and agentic coding workflows - not because someone told you to, but because you couldn't help yourself. You think about how to redesign your development loop from first principles, not how to bolt AI onto the way you already work.
• You communicate well, collaborate easily across disciplines, and care about the product as much as the code. You're the kind of engineer who asks "what's the best way to..." and then actually follows through.

Where you'll work

These roles are based in our tech hubs in Helsinki, Berlin OR Stockholm.

Next steps

We’re reviewing applications on a rolling basis, and the role will be filled as soon as we find the right person, so don’t wait!

The hiring process typically includes a conversation with the Talent Acquisition Partner, followed by technical interviews, a team chat, and a final decision.

We’re looking for experienced Software Engineers to join various teams within the Merchant Group at Wolt! If you have a strong track record of building and maintaining scalable, production-grade systems and want to drive impact at scale, this is the place for you.

Who We Are

The Merchant Group consists of 150+ engineers across 25+ cross-functional teams, working together to help merchants grow their businesses and streamline operations through innovative technology. Some of us focus on building seamless experiences for our merchants, while others work on the behind-the-scenes magic that makes everything run smoothly.

What You’ll Do

As an engineer in our group, you’ll work on production-level microservices in Kotlin and Go, helping shape how merchants succeed with Wolt. You’ll have opportunities to:

• Design, build, and scale reliable systems that power merchant experiences.
• Work across the full development lifecycle – from business logic and testing to cloud infrastructure and data streaming.
• Collaborate on architecture and technology choices that keep our systems simple, scalable, and efficient.
• Grow your skills and knowledge by working alongside experienced teammates in an environment that values learning and experimentation.

How We Work

• Autonomy & Ownership – Our engineers have end-to-end responsibility for their services, from implementation to production.
• Collaboration – Architecture and working methods are defined together, ensuring we make the best choices for long-term success.
• Scalability & Simplicity – We value pragmatic solutions that keep our systems robust without unnecessary complexity. We use technologies that serve Wolt, our teams, and our engineers best. You’ll have the freedom to experiment and adopt the tools that work.

Find out more by checking out our Kotlin-related Tech Talks below:

• Scaling Kotlin Backend Development Podcast 

• Kotlin at Wolt

• Kotlin Meetup

Our Tech Stack

Our core technologies include Kotlin (Ktor, Koin, Spring, gRPC), PostgreSQL, MongoDB, Kafka, Redis, GitHub Actions, AWS, Docker, and Kubernetes.

Why Join Us?

Wolt is a place where you can learn, teach, and grow. If you’re passionate about building great technology and working in an environment that values teamwork and autonomy, we’d love to hear from you!

📍These open roles are based in our tech hubs in Berlin, Helsinki or Stockholm. We work in distributed teams, but might not be able to offer fully remote work or relocation. 

Our humble expectations

We’re seeking experienced Software Engineers with a strong background in building scalable microservices. While Kotlin is our primary language, experience with Java, Scala, or other JVM backend languages is great. As we are exploring Go, we're looking for people who are confident in their ability to learn and teach! 🛠️

Beyond technical expertise, we value ownership, collaboration, and a mindset for growth. We think you're a great communicator who thrives in tackling complex challenges, questioning conventions, and working closely with teammates to build reliable, scalable systems. 🚀

Next steps

We are hiring for multiple open positions across different teams in the Merchant Group. During the initial screening call our Talent Acquisition Partner will discuss with you your expectations and possible domain preferences as well as share more about the group. After the recruiter screening call, during the rest of the interviewing steps, you’ll meet hiring managers and software engineers from the Merchant group, a specific team being proposed at the end of the process - that’s the moment when you’ll get to meet your possible Team Lead. Throughout the process, we will do our best to match your experience, skills, and aspirations with the most suitable Engineering team!

We are looking for experienced Senior Software Engineers who can develop production-level microservices to join our Fintech group here at Wolt.

Our Engineering organization at Wolt consists of 700+ Engineers working across 70+ product teams. Some of us work on the visible parts, making our services easy on the eye and some of us focus on the unseen magic happening behind the scenes. ✨

Our Engineers handle the whole development process (business logic, testing, database & data streaming, CI/CD, analytics, cloud) in an autonomous manner. They build things that are accessible and made to scale. They keep our systems in the best shape by simplifying the unnecessary complexity.

We make the decisions as a team and group of teams for our ways of working and we take architectural decisions together. Everyone plays a role in our future.

Our Engineers choose the best technologies that work for Wolt, their teams and themselves. Making good choices means finding scalable, robust technology that works in everyone’s best interests. The freedom to experiment and adopt the best technology benefits everyone.

The main stack for these roles consists for example Golang (Echo), Kotlin (Ktor, Koin,  Spring, grpc…), PostgreSQL, MongoDB, Kafka, Redis, GitHub Actions, AWS, Docker and Kubernetes.

Needless to say, in such an environment there’s a lot of room for learning, teaching and growing together! 

Go ahead and check our Kotlin- & Golang-related Tech Talks below. 

• The very fresh Scaling Kotlin Backend Development Podcast 
• Kotlin at Wolt
• Kotlin Meetup
• Golang Tech Talks

FinTech Group

FinTech Group is dedicated to shaping the future of financial services at Wolt. 🚀 Our Fintech teams play a critical role in enabling smooth and automated money flows for our customers, merchants, and courier partners as well as delivering financial products to them. To meet local requirements and provide the best financial solutions, our Fintech engineering teams are at the forefront of building integrations and automating financial processes for local country teams, supporting expansion in our existing markets and into new ones. Our focus has been also on building Consumer Fintech, introducing brand-new products and bringing innovations that elevate the financial experience for all our users.

We currently have multiple roles in our Fintech Teams, and depending on your experience, we will make sure to find the right team for you during the interview process. If you are always open to learning new things, find motivation in working with skilled and nice colleagues, and don't shy away from highly challenging engineering topics, you'll fit right in! 💡👩‍💻

📍This role can be based in one of our tech hubs in Helsinki, Stockholm, or our newest additions, Timisoara & Bucharest in Romania. Read more about our hybrid and remote setup here. If you live outside of these countries, don't worry! We provide relocation support to help you make your way to Finland or Sweden.

Our humble expectations

We'd love to see experience with either Golang or Kotlin. We appreciate previous experience in handling the whole development cycle all the way to production. However,  what truly sets you apart is your ability to tackle big challenges together, envision scalability and availability, and dare to question conventional decisions. You’ll be successful in our teams if you quickly grasp new concepts and thrive in an environment of continuous learning.🌟

We put a lot of focus on the ability to collaborate well with others. We work closely with our teammates and having a good connection with team members is essential. We understand that everyone has their own unique way of communicating with others. We expect you to be yourself, express your opinions, and work together with the rest of the team.

In addition to technical expertise, we cherish those who take ownership beyond the obvious, have an insatiable hunger for knowledge, make collaborative decisions, and enthusiastically collaborate with diverse teams Woltwide. We value the unique perspectives and skills you bring to our adventure, and we're excited to see what you can achieve with us! 👥 🚀

Fluency in English language is mandatory.

Next steps

During the initial screening call our Talent Acquisition Partner will discuss with you your expectations and possible domain preferences as well as share more about different teams. After the recruiter screening call, the interviewing steps are conducted and a specific team being proposed at the end of the process - that’s the moment when you’ll latest get to meet your possible Team Lead. Throughout the process, we will do our best to match your experience, skills and aspirations with the most suitable team at Wolt! 

We’re looking for an experienced Software Engineer join our Go initative within the Merchant Group at Wolt! If you have a strong track record of building and maintaining scalable, production-grade systems you like to drive impact at scale and mentor juniors and peers - this is the place for you!

Who We Are

The Merchant Group consists of 150+ engineers across 25+ cross-functional teams, working together to help merchants grow their businesses and streamline operations through innovative technology. Some of us focus on building seamless experiences for our merchants, while others work on the behind-the-scenes magic that makes everything run smoothly.

What You’ll Do

As a senior engineer in our group, you’ll work your magic in Go or Kotlin (and some Kotlin) helping shape how merchants succeed with Wolt. You’ll have opportunities to:

• Design, build, and scale reliable systems that power merchant experiences.
• Work across the full development lifecycle – from business logic and testing to cloud infrastructure and data streaming.
• Collaborate on architecture and technology choices that keep our systems simple, scalable, and efficient.
• Grow your skills and knowledge by working alongside experienced teammates in an environment that values learning and experimentation.

How We Work

• Autonomy & Ownership – Our engineers have end-to-end responsibility for their services, from implementation to production.
• Collaboration – Architecture and working methods are defined together, ensuring we make the best choices for long-term success.
• Scalability & Simplicity – We value pragmatic solutions that keep our systems robust without unnecessary complexity. We use technologies that serve Wolt, our teams, and our engineers best. You’ll have the freedom to experiment and adopt the tools that work.

Our Tech Stack

Our core technologies include Go, as well as Kotlin (Ktor, Koin, Spring, gRPC), PostgreSQL, MongoDB, Kafka, Redis, GitHub Actions, AWS, Docker, and Kubernetes.

Why Join Us?

Wolt is a place where you can learn, teach, and grow. If you’re passionate about building great technology and working in an environment that values teamwork and autonomy, we’d love to hear from you!
📍This open role are based in our tech hubs in Berlin, Helsinki or Stockholm. We work in distributed teams, but might not be able to offer fully remote work or relocation.

Our humble expectations

We’re seeking an experienced Software Engineer, so we expect that you:

• Not only understand customer problems but can break them down into actionable steps for both yourself and the team. You balance short-term needs with long-term goals, creating high-quality, scalable solutions.
• Lead by example, setting high standards for work quality and managing projects effectively, even in uncertain situations. You take full ownership of your team’s work, making improvements that benefit both customers and colleagues. You regularly spot gaps and provide valuable recommendations to cross-functional partners.
• Are used to being a role model and informal leader, collaborating with partner teams and mentoring both juniors and peers.
• Are an excellent communicator, being succint and to the point. 

Next steps

We are continuously reviewing applications, so don’t hesitate to apply today - you will hear back from us as soon as possible.
You can read more about our recruitment process here.

Who we are

The role 

Collaborating closely with our dynamic team of product designers and engineers, you will play a pivotal role in shaping the foundation of frontend at Helsing. Embracing a hands-on approach, you'll not only lead by example, but also spearhead the development and expansion of a tight-knit team that works across a wide-range of internal teams and products. Your primary emphasis will be on enhancing usability, creating re-usable foundations for multiple front-ends and optimising the end-user experience across the entire company.

The day-to-day

• Review code contributions, proposals, and RFCs from colleagues. At Helsing we strongly believe that unblocking others takes precedence over spending more time on your own work.

• Own the user interface end-to-end, from early wireframes and prototypes through to performant, production-ready code. You'll work closely with product and UX colleagues to shape how users interact with our tools. We have relatively few frontend engineers at Helsing; this means that we operate at a high level of autonomy and there are plenty of opportunities for impactful work.

• Propose and implement new features, capabilities, tooling, visualizations, or even full products across our stack. We encourage our engineers to look beyond their immediate team for missed opportunities, and to speak up when they identify one.

• Establish and evolve our React component library, ensuring consistency, reusability, and alignment with our visual design standards across multiple front-ends.

• Collaborate with others beyond your team and share knowledge with the wider frontend community at Helsing. Contribute to establishing our frontend engineering standards. Build or adopt tools that help enforce these standards, or make our frontend engineers more efficient in a different way.

• Become a mentor, find a mentee, and help support and develop our interviewing pipeline. The people make or break the company, and we want as many engineers as possible to be part of fostering and growing the organisation.

• Share your experience and technical know-how with other Helsingers. We host tech talks, get together for smaller "let's learn together" groups, run topical office hours or reading groups (e.g., on React or TypeScript), etc. to help each other get better with time.

• Connect with, understand, and make changes to backend systems as needed. Our backends are primarily written in Rust, and you'll need to be comfortable navigating unfamiliar codebases to unblock yourself and improve integrations. Rust experience is not a prerequisite to this role, though - you can learn that over time as needed.

• Present your work at our weekly demo sessions. We want engineers to come together around what they are working on and to feel like they are not endlessly squirrelling away at something that doesn't matter. To that end, we host (and actively work towards) demo sessions that allow early feedback, celebration of progress, and a better shared understanding of everything that goes on at Helsing.

You should apply if you

• Can write legible, maintainable, and performant frontend code - ideally using TypeScript and React.

• Are experienced with APIs and server-client communication like REST and GraphQL.

• Have experience with running a live production software.

• Are passionate about staying on top of current development best practices, libraries and frameworks.

• Are comfortable working with unfamiliar backends, ideally with some exposure to languages like Rust.

• Communicate well in English, both verbally and in writing.

• Enjoy collaborating with others, including reviewing code and pair programming.

• Are comfortable working asynchronously (writing PRs and RFCs, having discussions by email).

• Strive to improve yourself, your peers, and the culture you work in over time.

• Feel like ethical considerations are an inherent part of engineering.

Note: We operate at an intersection where women, as well as other minority groups, are systematically under-represented. We encourage you to apply even if you don’t meet all the listed qualifications; ability and impact cannot be summarised in a few bullet points.

Join Helsing and work with world-leading experts in their fields 

• Helsing’s work is important. You’ll be directly contributing to the protection of democratic countries while balancing both ethical and geopolitical concerns

• The work is unique. We operate in a domain that has highly unusual technical requirements and constraints, and where robustness, safety, and ethical considerations are vital. You will face unique Engineering and AI challenges that make a meaningful impact in the world

• Our work frequently takes us right up to the state of the art in technical innovation, be it reinforcement learning, distributed systems, generative AI, or deployment infrastructure. The defence industry is entering the most exciting phase of the technological development curve. Advances in our field of world are not incremental: Helsing is part of, and often leading, historic leaps forward

• In our domain, success is a matter of order-of-magnitude improvements and novel capabilities. This means we take bets, aim high, and focus on big opportunities. Despite being a relatively young company, Helsing has already been selected for multiple significant government contracts

• We actively encourage healthy, proactive, and diverse debate internally about what we do and how we choose to do it. Teams and individual engineers are trusted (and encouraged) to practise responsible autonomy and critical thinking, and to focus on outcomes, not conformity. At Helsing you will have a say in how we (and you!) work, the opportunity to engage on what does and doesn’t work, and to take ownership of aspects of our culture that you care deeply about

Nice to have

• Significant recent experience with React.

• Familiarity with backend interface tools like REST, GraphQL, gRPC/Protocol Buffers.

• Established understanding of modern JS bundlers, such as Vite, and experience maintaining frontend infrastructure.

• Experience with styling utility-class libraries such as TailwindCSS and building reusable React component libraries.

• Data visualization expertise (e.g., D3.js, custom charting, or complex dashboard design).

• Background in designing software for aerospace, defense, or AI end users.

What we offer

• A focus on outcomes, not time-tracking

• Competitive compensation and VSOP options

• Relocation support

• Social and education allowances

• Regular company events and all-hands to bring together employees as one team across Europe

• A hands-on onboarding program (affectionately labelled “Infraduction”), in which you will be building tooling and applications to be used across the company. This is your opportunity to learn our tech stack, explore the company, and learn how we get things done - all whilst working with other engineering teams from day one 

Helsing is an equal opportunities employer. We are committed to equal employment opportunity regardless of race, religion, sexual orientation, age, marital status, disability or gender identity. Please do not submit personal data revealing racial or ethnic origin, political opinions, religious or philosophical beliefs, trade union membership, data concerning your health, or data concerning your sexual orientation.

Who we are

The role

At Helsing we develop and deliver AI-based capabilities and the enabling infrastructure that allow semi-autonomous platforms to localise, navigate, and perceive the world in real time. We build software that is subject to significant and unorthodox technical constraints, must operate in a wide variety of constantly-changing environments, and has to support an ever-growing list of challenging use-cases. What we build ultimately ends up in the hands of real people in high-risk, high-stress situations, so must be both reliable and frictionless. Taken together, this brings a whole host of interesting engineering challenges across a wide variety of fields that you’ll help us solve. To give some examples:

• Distributed systems (e.g., intermittent connectivity and byzantine actors)

• Embedded computing (e.g., resource-constrained compute and reverse-engineering)

• Robotics (e.g., control systems and tasking)

• Networking (e.g., long-range low-bandwidth radios and cross-medium routing)

• Deployment infrastructure (e.g., air-gapped devices and heterogenous fleets)

• Security (e.g., data sharing in low-trust, no-TLS networks and actually-secret data handling)

• Machine learning (e.g., systems for model development, storage, and dissemination)

In several of these areas, we are working near the state-of-the-art; we actively read (and sometimes implement) research papers, and often need to push even further to make theory work in practice. In others, we are applying well-known techniques to real-world situations (with real-world limitations) that have never been used in before, which requires skill, diligence, and honing a deep understanding of the underlying technologies.

The day-to-day

• Review code contributions, proposals, and RFCs from colleagues. At Helsing we strongly believe that unblocking others takes precedence over spending more time on your own work.

• Propose and implement new features, capabilities, algorithms, infrastructure, or even full products across our stack. We encourage our engineers to look beyond their immediate team for missed opportunities, and to speak up when they identify one.

• Become a mentor, find a mentee, and help support and develop our interviewing pipeline. The people make or break the company, and we want as many engineers as possible to be part of fostering and growing the organisation.

• Share your experience and technical know-how with other Helsingers. We host tech talks, get together for smaller “let’s learn together” groups, run topical office hours (e.g., on Rust), etc. to help each other get better with time.

• Maintain our existing software stack, including working with internal and external customers to identify issues, improving operational reliability and performance, and fending off technical debt. The stack is a mix of Rust and Python, with Python mainly living in the ML-heavy sections.

• Further develop our tests and benchmarks, both at the micro and macro level. We operate in a domain where robustness is of the utmost importance, and an extensive and ever-improving test suite is key to achieving that. And without thorough benchmarks, we would be flying blind.

• Present your work at our weekly demo sessions. We want engineers to come together around what they are working on and to feel like they are not endlessly squirrelling away at something that doesn’t matter. To that end, we host (and actively work towards) demo sessions that allow early feedback, celebration of progress, and a better shared understanding of everything that goes on at Helsing.

You should apply if you

• Can write legible, maintainable, and performant code.

• Communicate well in English, both verbally and in writing.

• Enjoy collaborating with others, including reviewing code and pair programming.

• Are comfortable working asynchronously (writing PRs and RFCs, having discussions by email).

• Have backend development experience, ideally with a language like Rust, Java, Go, or C++.

• Are familiar with backend interface tools like REST, GraphQL, gRPC/Protocol Buffers, and Arrow.

• Strive to improve yourself, your peers, and the culture you work in over time.

• Feel like ethical considerations are an inherent part of engineering.

Note: We operate at an intersection where women, as well as other minority groups, are systematically under-represented. We encourage you to apply even if you don’t meet all the listed qualifications; ability and impact cannot be summarised in a few bullet points.

Nice to have

• Rust and Python specifically.

• Container-based and cloud-native application architectures (e.g., Docker, Azure, AWS).

• Metrics tooling (e.g., Prometheus, Grafana, ELK).

• SQL and streaming database systems.

• Routing protocols (e.g., IGP, BGP).

• Cryptographic protocols (e.g., Signal, WireGuard).

• Hardware interfaces (e.g., Arduino).

• Robotics (e.g., control systems).

• Production ML systems.

Join Helsing and work with world-leading experts in their fields 

• Helsing’s work is important. You’ll be directly contributing to the protection of democratic countries while balancing both ethical and geopolitical concerns. 

• The work is unique. We operate in a domain that has highly unusual technical requirements and constraints, and where robustness, safety, and ethical considerations are vital. You will face unique Engineering and AI challenges that make a meaningful impact in the world. 

• Our work frequently takes us right up to the state of the art in technical innovation, be it reinforcement learning, distributed systems, generative AI, or deployment infrastructure. The defence industry is entering the most exciting phase of the technological development curve. Advances in our field of world are not incremental: Helsing is part of, and often leading, historic leaps forward. 

• In our domain, success is a matter of order-of-magnitude improvements and novel capabilities. This means we take bets, aim high, and focus on big opportunities. Despite being a relatively young company, Helsing has already been selected for multiple significant government contracts.  

• We actively encourage healthy, proactive, and diverse debate internally about what we do and how we choose to do it. Teams and individual engineers are trusted (and encouraged) to practise responsible autonomy and critical thinking, and to focus on outcomes, not conformity. At Helsing you will have a say in how we (and you!) work, the opportunity to engage on what does and doesn’t work, and to take ownership of aspects of our culture that you care deeply about. 

What we offer

• A focus on outcomes, not time-tracking

• Competitive compensation and VSOP options

• Relocation support

• Social and education allowances

• Regular company events and all-hands to bring together employees as one team across Europe

• A hands-on onboarding program (affectionately labelled “Infraduction”), in which you will be building tooling and applications to be used across the company. This is your opportunity to learn our tech stack, explore the company, and learn how we get things done - all whilst working with other engineering teams from day one 

Helsing is an equal opportunities employer. We are committed to equal employment opportunity regardless of race, religion, sexual orientation, age, marital status, disability or gender identity. Please do not submit personal data revealing racial or ethnic origin, political opinions, religious or philosophical beliefs, trade union membership, data concerning your health, or data concerning your sexual orientation.

The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.  

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

We're looking to hire for our Data side of our AI team at Speechify. This role is responsible for all aspects of data collection to support our model training operations. We are able to build high-quality datasets at petabyte-scale and low cost through a tight integration of infrastructure, engineering, and research work. We are looking for a skilled Software Engineer to join us.

What You’ll Do

• Be scrappy to find new sources of audio data and bring it into our ingestion pipeline
• Operate and extend the cloud infrastructure for our ingestion pipeline, currently running on GCP and managed with Terraform.
• Collaborate closely with our Scientists to shift the cost/throughput/quality frontier, delivering richer data at bigger scale and lower cost to power our next-generation models.
• Collaborate with others on the AI Team and Speechify Leadership to craft the AI Team’s dataset roadmap to power Speechify’s next-generation consumer and enterprise products.

An Ideal Candidate Should Have

• BS/MS/PhD in Computer Science or a related field.
• 5+ years of industry experience in software development.
• Proficiency with bash/Python scripting in Linux environments
• Proficiency in Docker and Infrastructure-as-Code concepts and professional experience with at least one major Cloud Provider (we use GCP)
• Experience with web crawlers, large-scale data processing workflows is a plus
• Ability to handle multiple tasks and adapt to changing priorities.
• Strong communication skills, both written and verbal.

What we offer

• A fast-growing environment where you can help shape the company and product.
• An entrepreneurial-minded team that supports risk, intuition, and hustle.
• A hands-off management approach so you can focus and do your best work.
• An opportunity to make a big impact in a transformative industry.
• Competitive salaries, a friendly and laid-back atmosphere, and a commitment to building a great asynchronous culture.
• Opportunity to work on a life-changing product that millions of people use.
• Build products that directly impact and support people with learning differences like dyslexia, ADD, low vision, concussions, autism, and more.
• Work in one of the fastest-growing sectors of tech, the intersection of artificial intelligence and audio.

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace. 

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

Are you interested in working on exciting challenges within high transaction environments? We are looking for you who are curious, can take initiative and come up with new creative solutions, and care about ultimately delivering a great product.  

The Role

Our Player, Rewards & Gamification- Product Development team in Stockholm is growing and we are now looking for a Backend Software Engineer to join! Player, Rewards & Gamification at Betsson Group ensures our customers come back for more. It’s all about loyalty. We provide a world class customer experience beyond the game play featuring Tournaments, Dynamic personalized campaigns and much more! 

You will be part of preparing our journey to containerization, increasing the scalability of our systems while also maintaining their high quality. To accommodate new requirements, we are constantly re-evaluating our systems design and working on exciting new features.

What You’ll Do

• Design and develop distributed backend services using .NET and event-driven architecture.
• Collaborate with product and commercial teams to turn engagement ideas into scalable, maintainable, and user-friendly solutions.
• Optimize our microservice ecosystem for performance, reliability, and observability.
• Drive our containerization and cloud migration strategy forward.
• Participate in architecture discussions and help shape technical decisions.
  • For senior engineers: Lead architectural decisions and proactively identify areas for improvement.
• Write maintainable, well-tested code and conduct code reviews.
• Participate in incident resolution and the team’s on-call rotation.
• Maintain clear technical documentation such as ADRs, runbooks, and guidelines.
• Build and share your domain expertise within the team.

What Tech Stack You’ll Be Working With

We don’t expect you to know everything listed below – but the more you’re familiar with, the better. What matters most is your ability to learn, collaborate, and write high-quality, maintainable code. 

Core Technologies

These are essential to the role, and we’re looking for solid experience here – especially for senior candidates.

• Languages & Frameworks: C#, .NET (modern versions after .NET Core)
• Databases: SQL Server, PostgreSQL, Redis, Couchbase (experience with relational or document databases, including indexing and query optimization, is a strong plus)
• Cloud & Containers: AWS, Kubernetes, Docker (experience with any major cloud provider or containerization platform is valuable)
• Testing & Quality: xUnit/NUnit, mocking frameworks, k6 for load testing (understanding of unit, integration, and performance testing is more important than specific tools)

Additional Tools & Practices

Familiarity with these of similar tools and concepts is a plus.

• Messaging & Microservices: Web APIs, Apache Kafka, RabbitMQ, Orleans (experience with any messaging or actor-based system is valuable)
• Observability: Prometheus, Grafana, Loki, Splunk (or experience with other observability stacks)
• CI/CD: GitHub Actions, trunk-based development, progressive delivery (familiarity with continuous delivery pipelines and deployment strategies is more important than specific tooling)
• Architecture: Domain-driven design, event sourcing, actor model, distributed systems at planet-scale
• Ways of Working: Agile and Lean principles, DevOps mindset, strong collaboration

What’s in it for you?

Much like a rollercoaster, life at Betsson Group is fast-paced, full of twists and turns, and always exciting. With more than 2,800 colleagues representing over 75 nationalities across a global network of offices - including 1,500 at our operational headquarters in Malta - every day brings new challenges and opportunities to grow. It may not be for the faint-hearted, but if you thrive on innovation, enjoy pushing boundaries and want to be part of a diverse, international team, then you’ll fit right in at Betsson.

Challenge Accepted?

Check out the Betsson Group Blog to find out what our tech colleagues are talking about.

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Are you a Frontend Software Engineer with a keen interest in everything Web3 and how this can be applied to iGaming? Then this is the role for you! We are looking for a Software Engineer to help us in the beginning of our journey to bring new and innovative iGaming products and brands to the market, leveraging the exciting possibilities provided by Web3 concepts and technologies. 

About the Team

You'll be joining a new team at the start of an ambitious journey - bringing innovative iGaming products and brands to market by leveraging the possibilities opened up by Web3 technologies. This is greenfield work: small team, big ambitions, real users. 

What You'll Do

• Design, build, and ship user-facing features across our Web3 iGaming products, working from concept through to production. 

• Partner with product managers, designers, and backend engineers to translate ambiguous problems into clear, high-quality user experiences. 

• Participate in the full development lifecycle - sprint planning, estimation, code review, testing, deployment, and post-launch iteration. 

• Help establish the engineering patterns, tooling, and conventions that a growing team will rely on. 

What we are looking for

• 2+ years of professional experience as a Frontend Engineer. 

• Strong command of TypeScript and JavaScript, and comfort working in at least one major framework (React, Vue, or Angular). 

• Solid fundamentals in HTML, CSS, and a preprocessor like Sass or LESS. 

• Experience integrating with RESTful APIs and reasoning about client–server contracts. 

• A track record of writing meaningful unit and integration tests (Playwright, Jest or similar). 

• Familiarity with modern JavaScript tooling and bundlers (Vite, Rollup, etc.). 
  
  
• An eye for performance and an instinct for what makes a web application feel scalable rather than just work at scale. 
  
  
• Product thinking and a can-do attitude - you care about why something is being built, not just how, and you keep momentum when the path isn't obvious. 

Bonus Points 

• Experience with native Web Components (e.g. Stencil.js). 

• Genuine interest in or hands-on exposure to Web3 - wallets, on-chain interactions, smart contract integration, or related tooling. 

• Background in iGaming, fintech, or other regulated, high-traffic consumer domains. 

What we offer

Much like riding a rollercoaster, sometimes life at Betsson can be lightning fast with twists and turns but always FUN! Then again, what else would you expect from a business 75% millennial and 1700 strong, spread across 7 offices with 900 based out of our Malta HQ alone! We recognise it may not be for the faint-hearted, but if you’re a go-getter, initiator and adrenaline junkie, always striving to push the boundaries and challenge yourself, then you’ll fit right in.

Challenge accepted?

By submitting your application, you understand that your personal data will be processed as set out in our Privacy Policy

Are you a Backend Software Engineer with a keen interest in everything Web3 and how this can be applied to iGaming? Then this is the role for you! We are looking for a Software Engineer to help us in the beginning of our journey to bring new and innovative iGaming products and brands to the market, leveraging the exciting possibilities provided by Web3 concepts and technologies.

The Wow

As s Backend Developer you will be responsible for the server-side code and APIs of our web applications. You will work closely with our development team to ensure system consistency and to create a great user experience.

A taster of what you will be involved with

• Participate in sprint planning, task estimation, development testing, code reviews and deploying software
• Maintenance and improving of existing software
• Designing code, unit tests
• Managing SQL and NoSQL data models

What we are looking for

• 5+ years as a backend developer
• 5+ years of developing backend systems, preferably in .NET/C# with knowledge in ASP.NET Web API
• Proficiency in SQL Server or Postgres; both in writing queries and tuning performance
• Experience with blockchain integrations
• Experience in design and implementation of distributed and multi-tier systems, understanding SOA principles and service oriented environments (multiple services, multiple machines)
• Knowledge in automated testing and continuous integration
• Use of agile/lean methodologies for continuous delivery and improvement
• Experience of coaching and mentoring junior colleagues
• Confident in both written and spoken English

Extra awesome if you have:

• NoSQL databases (Couchbase)
• CRM Systems
• .NET Core
• Knowledge in HTML 5, CSS, JS, jQuery and/or JavaScript frameworks
• Distributed microservice-based architectures
• We don’t expect you to be an expert in all of these technologies but would anticipate experience with some combined with a curiosity for others: Docker, Consul, etcD, Kubernetes, Elasticsearch, Apache Kafka, RabbitMQ
  
  

What we offer

Much like riding a rollercoaster, sometimes life at Betsson can be lightning fast with twists and turns but always FUN! Then again, what else would you expect from a business 75% millennial and 1700 strong, spread across 7 offices with 900 based out of our Malta HQ alone! We recognise it may not be for the faint-hearted, but if you’re a go-getter, initiator and adrenaline junkie, always striving to push the boundaries and challenge yourself, then you’ll fit right in.

Challenge accepted?

By submitting your application, you understand that your personal data will be processed as set out in our Privacy Policy

The mission of Speechify is to make sure that reading is never a barrier to learning.

Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its App of the Day.

Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.

Overview

With the growth of our iOS app, being the #18 productivity app in the App Store category and also our recent recognition as Apple's 2025 Design Award for inclusivity, we find the need for a Senior iOS Engineer to help us support the new user base as well as work on new and exciting projects to push our missing forward.   

This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, passionate about making product decisions, and has experience building great user experiences that delight users.

We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount. 

Our interview process involves several technical interviews and we aim to complete them within 1 week. 

What You’ll Do

• Opportunity to lead key engineering and product decisions
• Actively shipping production code for the Speechify iOS app
• Work within a dedicated product team
• Participate in product discussions to shape the product roadmap
• Maintain and enhance the existing complex app architecture

An Ideal Candidate Should Have

• Experience. You've worked on products that scaled to a large user base
• Track record. You have worked on various products from inception to decent traction. You have been responsible for engineering the product
• Customer obsession. We expect every team member whose responsibilities directly impact customers to be constantly obsessed about providing the best possible experience
• Product thinking. You make thoughtful decisions about the evolution of your product and support internal teams and designers into taking the right direction
• Speed. You work quickly to generate ideas and know how to decide which things can ship now and what things need time
• Focus. We’re a high-growth startup with a busy, remote team. You know how and when to engage or be heads down
• Technical skills. Swift, SwiftUI

Technical Requirements:

• Swift Programming Language
• SwiftUI experience
• Experience in Multithreading Programming
• Working with CI/CD infrastructure
• Experience with Fastlane
• SOLID principles, the ability to write every single class according to SOLID
• Experience with Git and understanding of different Git strategies

What We offer:

• A fast-growing environment where you can help shape the company and product
• An entrepreneurial crew that supports risk, intuition, and hustle
• The opportunity to make a big impact in a transformative industry
• A competitive salary, a collegiate atmosphere, and a commitment to building a great asynchronous culture
• Work on a product that millions of people use and where daily feedback includes users sharing that they cried when they first found the product because it was so impactful on their lives
• Support people with learning differences like Dyslexia, ADD, Low Vision, Concussions, Autism, and Second Language Learners, and give reading superpowers to professionals all over the world
• Work in one of the fastest growing sectors of tech: Intersection of Artificial Intelligence and Audio

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace.

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

Senior Software Engineer (Full-Stack) 

Who We Are and What We Do  

At SilverRail, we're on a mission to reshape the way the world travels, and we're inviting you to be part of this journey. Rail is becoming the go-to choice for short and medium-haul travel worldwide, and we're here to help make it happen. 

In the face of the ongoing climate crisis, our vision is crystal clear. We are transforming the online customer experience for rail travel, making it easier than ever for customers to find, buy and use rail. Our cutting-edge technology is the backbone of rail and travel agencies worldwide, making it effortless for travellers to choose the eco-friendly option and reduce their carbon footprint.  

We have over 15 years of trailblazing success behind us, and our teams are spread across the globe, with bases in London, Boston, Brisbane, and Stockholm. We thrive on the philosophy of 'fail-fast-fail-early,' which drives us to find ingenious solutions to complex challenges. 

Join us, and help shape the future of travel! 

The Role  

As a Senior Full-Stack Software Engineer, you will play a key role in designing, building, and maintaining high-quality software solutions that support our evolving platform. Our team in Stockholm build products that are used by multiple API customers and travel agencies, enabling easy, accessible and frictionless rail ticketing across Europe. 
 
Working closely and cross-functionally, you will help translate business requirements into scalable, reliable technical solutions. You will contribute across the full development lifecycle, from requirements analysis and system design through implementation, testing, deployment, and ongoing optimization, all while applying best practices in code quality, maintainability, and performance. 
 

You will work in a collaborative Agile environment, actively participating in Sprint planning, backlog refinement, daily stand-ups, reviews, and retrospectives. As a senior member of the team, you will bring strong technical expertise and a passion for clean, maintainable code while contributing to architectural discussions, mentoring teammates, and continuously improving engineering practices. You will help ensure that new features meet the Definition of Done and that each Sprint delivers meaningful, high-quality value. 

Key Responsibilities  

• Analyse requirements and translate functional specifications into well-designed, scalable software components. 

• Design, implement, and maintain application features, contributing to both backend and frontend solutions. 

• Write clean, readable, and maintainable code that follows established engineering standards and best practices. 

• Develop and maintain comprehensive unit and integration tests to ensure reliability and maintain strong test coverage. 

• Produce and maintain clear technical documentation to support maintainability and knowledge sharing. 

• Design, implement and evolve REST and SOAP APIs to support internal services and external integrations. 

• Build and maintain modular, testable Spring/Java-based middleware applications that align with architectural standards. 

• Contribute to the design and architecture of applications and services, helping evaluate technical solutions and trade-offs. 

• Collaborate with cross-functional team members, including Product Managers, QA, Tech Ops and Platform Engineering, to deliver high-quality features within each Sprint. 

• Participate in Agile ceremonies, code reviews, and continuous improvement initiatives to ensure features meet the Definition of Done and engineering standards.   

Required Competence and Skills 

• Strong knowledge and experience with Java 17+, Spring and Spring Boot frameworks. 

• Experience running microservices in the cloud, specifically with AWS, Docker and Kubernetes. 

• Experience of Hibernate and relational databases including MySQL.    

• Experience building JSON and XML based APIs. 

• Strong knowledge of RESTful principles.  

• Experience with UI technologies including JavaScript/TypeScript 

• Experience with UI frameworks including React.JS 

• Experience working in an Agile (Scrum) environment. 

• Familiarity with design patterns, SOLID and TDD 

• Experience using Git/GitLab managing CI/CD pipelines. 

• Minimum 5 years of hands-on work experience.   

• BSc in Computer Science or equivalent experience. 

• Fluent in English both written and spoken. 

• Strong analytical and problem-solving capabilities. 

• Comfortable working in a fast-paced environment while finding solutions to complex challenges. 

Why us?  

• We utilise a hybrid working model, providing equipment for home working so you can work 2-3 days per week at home and 2-3 days per week in our beautiful central Stockholm office.  

• We are part of the Tech Sverige and Almega organisations offering a strong collective working agreement. 

• We provide a wealth of career development opportunities with training that is individual, focused on improving your skills and helping you become the best professional you can be.  

• Our team’s health and wellness is genuinely important to us, so we provide a generous annual Wellbeing Allowance for you to use. 

• A unique opportunity to work for a tech company that is helping the environment by revolutionising the way we travel.  

Our values are simple: Do Good by working for a better tomorrow; Think Big Act Smart by being curious, adaptable and data-driven; and remember that through collaboration we will always be Stronger Together.  

*We are a neurodiverse employer and are working hard to improve our recruitment processes, so if there is any way that we can make the recruitment experience better for you then please let us know in your application - all information will be treated as strictly confidential*  

Mission

Speechify is the easiest way to listen to the world’s information. Articles on the web, documents in the cloud, books on your phone. We absorb it all and let you listen to it at your desk, on the go, at your own speed, and with tools that make learning easier, deeper, and faster.

What streaming services have done for audio entertainment, we’re doing for audio information. And whatever we’re doing seems to be working. We’re #1 in our category, and experiencing exponential growth.

Overview

We're looking for a Senior Software Engineer to join our Core Experiences Team. This team builds and maintains the foundational services and SDKs that power Speechify’s product experience across platforms. It's a critical role for someone who enjoys working at the intersection of product and infrastructure, thinks strategically, and is passionate about designing clear, reliable APIs and simple systems that directly enhance the user experience.

What You’ll Do

• Collaborate with Speechify’s Product Teams to scope projects, find ways to reduce scope to get faster feedback from customers, navigate the integration/UX tradeoffs relevant to different product teams, and deliver solutions via our cross-platform SDK
• Optimize existing functionality to ship things like faster loading and more intelligent parsing by designing more efficient abstractions and improving our algorithms
• Ship cloud functions, lightweight backend services, and jobs using Kotlin

An Ideal Candidate Should Have

• Systems thinking. You know that optimizing a system requires end-to-end design, and you believe simplicity is valuable.
• Speed. You work quickly to generate ideas and options and know how to decide which things can ship now and what things need time
• Focus. We’re a high-growth startup with a busy, remote team. You know how and when to engage or be heads down
• Collaboration. You know how to inspire, play, and negotiate with opinionated designers, marketers, and PMs
• Preferred Tech Stack:
  • Kotlin Multiplatform (Java experience is OK but role is Kotlin Multiplatform) 
  • Prior experience with GCP is a plus

What We Offer

• A fast-growing environment where you can help shape the company and product.
• An entrepreneurial-minded team that supports risk, intuition, and hustle.
• A hands-off management approach so you can focus and do your best work.
• An opportunity to make a big impact in a transformative industry.
• Competitive salaries, a friendly and laid-back atmosphere, and a commitment to building a great asynchronous culture.
• Opportunity to work on a life-changing product that millions of people use.
• Build products that directly impact and support people with learning differences like dyslexia, ADD, low vision, concussions, autism, and more.
• Work in one of the fastest growing sectors of tech, the intersection of artificial intelligence and audio.

Think you’re a good fit for this job? 

Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.

Not looking but know someone who would make a great fit? 

Refer them! 

Speechify is committed to a diverse and inclusive workplace. 

Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.

The role

Mentimeter is looking for a Product Engineer to join our Payments team and help shape how customers pay for and manage their subscriptions.

The Payments team owns the checkout experience, billing systems, subscription lifecycle, and integrations with payment providers like Stripe. We work on reducing friction in critical customer journeys - from initial signup through renewal and cancellation. We're also thinking bigger: exploring more flexible billing models, improving how we handle invoicing and financial reporting, and building the infrastructure to support Mentimeter's growth.

The technical landscape is distributed systems, event-driven architecture, and complex integrations. We partner closely with Product, Finance, Sales, and Support to balance customer experience with business requirements. This is a team that works together -pairing, mobbing, and bringing diverse perspectives to problems that matter.

You'll have a genuine chance to influence Mentimeter's payments strategy and help define how hundreds of thousands of customers experience billing at our platform.

The Team

The Payments team is part of our Capabilities area, which builds critical platform experiences. We're a close-knit group: a product manager, an engineering manager, and backend-focused engineers who care about getting the details right. We work across the entire stack, but most of our work is backend, distributed systems, integrations, and data pipelines.

We're collaborative by nature. We discuss big decisions openly, challenge ideas respectfully, and support each other. We're not a ticket-pushing team. We own outcomes, think about trade-offs, and take initiative to improve what we've built. We're also learning together - experimenting with AI adoption, refining how we work, and building skills we didn't have yesterday.

What you'll do

• Design, build, and improve payment and billing experiences that reduce friction and delight customers
• Work on subscription lifecycle systems, pricing logic, and invoicing pipelines
• Integrate and maintain relationships with payment providers - understanding their APIs, limitations, and cost models
• Build systems that handle distributed transactions reliably, with observability and fault tolerance
• Collaborate across teams - understanding what Finance needs, what Sales is selling, what Support is hearing from customers
• Think about how we evolve our billing capabilities - moving beyond our current patterns to support new pricing models and business requirements
• Take initiative on projects that improve our systems, domain knowledge, or team practices
• Stay curious about payments, distributed systems, and AI adoption in software development

Who you are

You're comfortable working across the backend stack and think in terms of systems and trade-offs. You have real experience shipping backend services to production - you understand latency, observability, and knowing what to test.

You're curious by nature. You ask good questions, learn quickly, and aren't intimidated by domains you haven't worked in before. You have opinions, you share them respectfully, and you're willing to be challenged in return.

You think about outcomes, not tasks. You can take a fuzzy problem, break it down, and drive it to completion. You work well with others - you enjoy pairing, you communicate clearly, and you can represent the team in cross-functional conversations.

This is a full-stack product engineering role with a heavy emphasis on the backend. The primary responsibilities will involve backend development in Ruby. 

The successful candidate will also contribute to and own frontend features. This is a perfect fit for an engineer who is passionate about scalable systems and comfortable working across the entire tech stack, while maintaining a main focus on backend architecture.

It's a big plus if you have

• Experience with payments, billing, subscriptions, or Stripe - you understand the domain and its quirks
• Experience building systems that integrate with external APIs and handle eventual consistency
• Familiarity with distributed systems thinking - understanding event-driven architecture, idempotency, and failure modes
• Some infrastructure or platform thinking - you've thought about observability, monitoring, and operational excellence
• Experience working on products with internal stakeholders - Finance, Sales, Support - and understanding their needs
• Comfort pairing, mobbing, or working in collaborative code sessions
• Interest in AI adoption and how AI tools can improve our development process

It's okay if you don't have

• Specific experience with payments or Stripe (domain knowledge is learnable)
• Deep infrastructure expertise (curiosity and willingness to learn matter more)
• Ruby experience (we value engineers who are problem solvers and have a growth mindset)

How we work with AI
We're actively building AI into how we build software - and as part of the product itself. Every engineer has access to tools like Cursor, Claude, and Codex, and we encourage you to use them to pair on tricky problems, explore unfamiliar codebases and to prototype and experiment. We're not prescriptive about how we use them, but we are curious about what works and what comes next in how products get built. Our teams regularly share workflows, and lessons learned, and we treat AI adoption and fluency as a skill we're all developing together - both in how we build and in what we build for our customers.

The role

Mentimeter is looking for a Product Engineer to join our Identity team and help shape how users and organizations authenticate, access, and manage their presence across our products.

The Identity team owns the enterprise-grade identity surface of Mentimeter: SSO and SAML authentication, SCIM-based user provisioning, domain control, and email verification among others. Our mission is to create intuitive, scalable solutions for identity management of users and participants - lowering the threshold for enterprises to start adopting our enterprise offering with minimal support. That means everything from a first-time user signing in seamlessly, to enabling organisations of tens of thousands to onboard into their workspace smoothly through automated provisioning and access management.

Beyond our own systems, we act as an enabling function for other teams - advising on standardized authentication practices across Mentimeter’s products, and ensuring that both internal and external integrations follow consistent, secure patterns.

The technical landscape spans distributed systems, security-sensitive flows, and deep integrations with identity providers. We partner closely with Product, Security, Sales, and Support to balance user experience with enterprise requirements. 

This is a team that works together - bringing diverse perspectives to problems that matter. You’ll have a genuine chance to influence Mentimeter’s identity strategy and help define how millions of users and their organizations experience authentication through our products.

The team

The Identity team is part of our Capabilities area, which builds critical platform experiences. We’re a close-knit group: a product manager, an engineering manager, and engineers who care deeply about getting security and user experience right at the same time. We work across the entire stack, but most of our work is primarily in the backend. We’re collaborative by nature. We discuss big decisions openly, challenge ideas respectfully, and support each other. 

We’re not a ticket-pushing team. We own outcomes, think about trade-offs, and take initiative to improve what we’ve built. We’re also learning together - experimenting with AI adoption, refining how we work, and building skills we didn’t have yesterday.

What you'll do

• Design, build, and improve authentication and identity experiences that are seamless for individual users and robust for large enterprises
• Work on SSO and SAML integrations, SCIM-based provisioning, domain control, email verification, and password authentication flows
• Integrate and maintain relationships with identity providers - understanding their protocols, limitations, and security models
• Build systems that handle security-sensitive flows reliably, with observability, auditability, and fault tolerance
• Enable other engineering teams by establishing standardised authentication practices and advising on identity patterns for new products and integrations
• Collaborate across teams - understanding what Security needs, what Sales is selling to enterprise customers, and what Support is hearing from organisations
• Think about how we evolve our identity capabilities - moving beyond current patterns to support new authentication methods, multi-product identity, and growing enterprise requirements
• Take initiative on projects that improve our systems, domain knowledge, or team practices
• Stay curious about identity, security, distributed systems, and AI adoption in software development

Who you are

You’re comfortable working across the backend stack and think in terms of systems and trade-offs. You have real experience shipping backend services to production - you understand latency, observability, and knowing what and when to test functionality.

You’re curious by nature. You ask good questions, learn quickly, and aren’t intimidated by domains you haven’t worked in before. You have opinions, you share them respectfully, and you’re willing to be challenged in return.

You think about outcomes, not tasks. You can take a fuzzy problem, break it down, and drive it to completion. You work well with others - you enjoy pairing, you communicate clearly, and you can represent the team in cross-functional conversations.

This is a full-stack product engineering role with a heavy emphasis on the backend. The primary responsibilities will involve backend development in Ruby. 

The successful candidate will also contribute to and own frontend features. This is a perfect fit for an engineer who is passionate about scalable systems and comfortable working across the entire tech stack, while maintaining a main focus on backend architecture.

It's a big plus if you have

• Experience with authentication, identity management, SSO, or protocols like SAML, OIDC, and OAuth - you understand the domain and its quirks
• Experience building systems that integrate with external identity providers and handle security-sensitive flows
• Familiarity with distributed systems thinking - understanding event-driven architecture, idempotency, and failure modes
• Some infrastructure or platform thinking - you’ve thought about observability, monitoring, and operational excellence
• Experience working on products with both end users and internal stakeholders - Security, Sales, Support - and understanding their needs
• Experience enabling other teams - advising on best practices, reviewing integration designs, or maintaining shared libraries
• Comfort pairing, mobbing, or working in collaborative environments
• Interest in AI adoption and how AI tools can improve our development process

It's okay if you don't have

• Specific experience with authentication or identity protocols (domain knowledge is learnable)
• Deep infrastructure expertise (curiosity and willingness to learn matter more)
• Ruby experience (we value engineers who are problem solvers and have a growth mindset)

How we work with AI
We're actively building AI into how we build software - and as part of the product itself. Every engineer has access to tools like Cursor, Claude, and Codex, and we encourage you to use them to pair on tricky problems, explore unfamiliar codebases and to prototype and experiment. We're not prescriptive about how we use them, but we are curious about what works and what comes next in how products get built. Our teams regularly share workflows, and lessons learned, and we treat AI adoption and fluency as a skill we're all developing together - both in how we build and in what we build for our customers.

At Betsson Group, the Player Rewards and Gamification Area ensures our customers come back for more! It’s all about loyalty. We provide a world class customer experience beyond the game play featuring exciting features like tournament, dynamic personalised campaigns and much more! We also work closely with our Commercial, Compliance and Data teams to build the next generation back-office tools to support their processes.

The Wow

As our Senior Product Manager, you will be a part of a cross functional development team where you will have the primary responsibility for defining, organising and prioritising requirements. You will work closely with business stakeholders within the organisation, as well as developers, architects and UX designers to continuously optimise the customer experience.

Together with your team you will take ownership of a number of customer journeys and/or capabilities where you will be one of the key people expected to drive and lead the delivery of new functionality as well as improvements of existing functionality. This will often require you to collaborate with other development teams and engage with a number of stakeholders to ensure a successful roll out. We operate in a fast paced and challenging industry, and you will have several opportunities to work on complex and cutting edge products and contribute to Betsson Group’s success.

A taster of what you will be involved with: 

• Proactively get input from relevant Business Units on operational needs and problems that need to be solved
• Align requirements, scope, and plan with company-wide initiatives
• Conduct competitors’ analysis
• Lead User Research, experimentation, A/B testing, UAT initiatives
• Own Product Roadmap and prioritization
• Set and track Product KPIs and Success Metrics for product deliveries
• Communicate iteratively on Roadmap changes and deliveries
• Working with UX and UI designers (and other stakeholders as necessary) to define the customer experience and product specifications
• Defining user stories with acceptance criteria together with the development team
• Defining tracking, reporting, and non-functional requirements for user stories
• Working with the team to refine, plan and prioritise user stories according to business value, always taking technical debt and the long term success of the product into account
• Collaborating with stakeholders and ensuring that they are kept up to date and aligned with the current progress and prioritization
• Helping the rest of the development team and Product Management peers to ensure that acceptance criteria are met
• Occasional travelling be required to our various offices

What we are looking for

• Prior software engineering experience or education.
• Collaboration and dialogue. You will be collaborating both with members of your development team, stakeholders outside the team as well as third party providers and partners
• Agile. Not just processes but a true agile mind-set where all members of the cross functional development team are involved and where changing requirements based on business needs and market opportunities are embraced
• Facilitating and creating workshops materials
• Prioritizing and taking educated decisions
• Collaborating with development teams
• Problem solving and tough conversations. We work in a high paced industry and having more requirements and expectations than capacity is the norm. You will play a key role in managing expectations and ensuring a sustainable pace in your team.
• You are technical enough to manage software product – backend, back-office, and player-facing features for the enterprise platform
• Understanding of APIs, SQL, event-based services and various API exploration tools, like Postman, Swagger, LINQ Pad or similar is a must due to most of functionality is in the backend and API, with limited exposure to UI
• Transactional business rules and algorithmic thinking
• Defining observability, logging requirements, coming up with metrics, alerts ad defining deviations from normal performance of the system.
• Good understanding and ability to define non-functional requirements is a must
• Analysing legal and regulatory requirements
• Product Discovery, Product Planning, and delivery tools (like Jira, Confluence, Miro or similar)
• Thorough documentation of decisions, requirements, analysis and dependencies
• Creating audience-specific presentations and workshop materials
• Gaming, Payments, Revenue Recognition and Accounting, Taxation, CRM, SAAS experience is a big plus

What we offer

Much like riding a rollercoaster, sometimes life at Betsson can be lightning fast with twists and turns but always FUN! Then again, what else would you expect from a business 75% millennial and 1700 strong, spread across 7 offices with 900 based out of our Malta HQ alone! We recognise it may not be for the faint-hearted, but if you’re a go-getter, initiator and adrenaline junkie, always striving to push the boundaries and challenge yourself, then you’ll fit right in.

Challenge accepted?

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Modern data platforms are built on events - well-defined, trustworthy signals that describe how users interact with products and systems over time. As a Data Engineer you will help build and improve the data platform that powers analytics, growth, personalization and decision-making across the company.

This role is part of the Data Platform team, where we design and maintain the core data infrastructure that serves Product, Marketing, Growth, and Analytics. You will focus on the systems and infrastructure that supports transforming batch and streaming data into high-quality datasets that downstream systems - from warehouses to activation tools - can rely on.

We are currently in the early stages of building out a new event-driven architecture, and this role will be part of shaping it. That means owning parts of the streaming infrastructure, contributing to foundational decisions about how events are structured and evolved, and having real influence over how data flows across the company for years to come.

This is a hybrid/onsite role located in Stockholm, our guideline is to spend 3 days a week at our office.

What you’ll do

• Design and operate data infrastructure (streaming and batch) and the systems that move data reliably at scale.
• Contribute to how events are defined, structured, and evolved across the platform.
• Ensure data quality, consistency, and observability across event pipelines.
• Ensure GDPR and PII compliance across data flows at scale.
• Contribute to data and architecture best practices that may span across the whole organisation.

Who you are

• A few years of experience as a Data Engineer or data-heavy backend engineer.
• Solid programming and data skills (e.g. SQL, Python, and/or JVM-based languages).
• Experience building and maintaining data pipelines in a modern cloud data stack.
• Experience managing infrastructure as code (e.g. Terraform or similar).
• A good understanding of data quality, observability, and reliability.
• Clear written communication skills in English and comfort working cross-functionally.
• Experience with streaming systems or near real-time data infrastructure (e.g. Kafka, Flink, or similar).

📍 Location: 

This is a hybrid/on-site role at Mentimeter HQ in Stockholm, where we expect you to be in the office at least 3 days/week.
Please note that we do not offer relocation sponsorship for the position.  

Not Required:

You don’t have to know Swedish (daily work is carried out in English and the Mentimeter team currently boasts over 50 nationalities!)

Modern data platforms are built on events. Not just logs or tracking points, but well-defined, trustworthy signals that describe how users interact with products and systems over time. As a Data Engineer with an Event background, you will help build and evolve the event-driven foundations that power analytics, growth, personalization, and decision-making across the company.

This role is part of the Data Platform team, where we design and maintain the core data infrastructure that serves Product, Marketing, Growth, and Analytics. You will focus on capturing canonical domain events and transform them to high-quality datasets that downstream systems — from warehouses to activation tools — can rely on with confidence.

The Data Engineering Team

The Data Engineering team builds and owns the data platform that enables the organization to understand its users and its business. We work closely with Product Engineering, Growth, Marketing, and Analytics to ensure that data is reliable, observable, compliant, and fit for purpose.

Within the team, this role brings deep expertise in event-based data modeling and martech-adjacent systems, strengthening Mentimeter’s ability to reason about user behavior, lifecycle metrics, and cause-and-effect across touchpoints. Your work will directly influence how events are defined, ingested, validated, and activated throughout the data ecosystem.

What you’ll do

• Model event data in the warehouse to support analytics, growth metrics, and lifecycle analysis.
• Ensure data quality, consistency, and observability across event pipelines.
• Collaborate with marketing and growth teams to enable reliable activation and personalization through tools such as Braze.
• Ensure GDPR and PII understanding and compliance across data flows, including consent handling and secure storage.
• Contribute to architectural decisions and best practices within the Data Engineering team.
• Act as the technical owner for Braze, including:
  • Defining and maintaining the event and user attribute contracts that power messaging, journeys, and personalization.
  • Ensuring data correctness, timeliness, and consistency between the warehouse and Braze.
  • Partnering with Marketing and Growth to enable safe, scalable activation patterns.

We believe you have

• Several years of experience as a Data Engineer, Analytics Engineer, or data-heavy backend engineer.
• Strong experience working with event-driven data models and behavioral data.
• Hands-on experience with event ingestion platforms (Segment or similar).
• Solid programming and data skills (e.g. SQL, Python, and/or JVM-based languages).
• Experience building and maintaining data pipelines in a modern cloud data stack.
• A strong understanding of data quality, observability, and reliability.
• The ability to understand and explain cause and effect in marketing and product data.
• Clear written communication skills in English and comfort working cross-functionally.

It’s a big plus if you have

• Experience working closely with martech platforms such as Braze.
• Previous experience as a Growth Engineer or in growth-focused product teams.
• Experience with streaming or near real-time data systems.
• Familiarity with user lifecycle frameworks and activation metrics.
• Experience working with GDPR-sensitive datasets at scale.

Not required

You don’t have to know Swedish (daily work is carried out in English and the Mentimeter team currently boasts over 50 nationalities!)

📍 Location: This is a hybrid/on-site role at Mentimeter HQ in Stockholm, where we expect you to be in the office at least 3 days/week.

Please note that we do not offer relocation sponsorship for the position.  

About Tzeract

Tzeract is changing the way we bet on sports. As Kambi’s in-house startup, we've built a completely new platform from the ground up - with our own AI at the core, not just as an add-on. Today we already handle over 500 millions bets in distributed systems with a low latency, and your work will be scaled globally from day one.

We iterate quickly, decide fast, and your calendar stays free for the work that matters. This gives you time for coffee breaks, test ideas and solve problems together. In this role, you’ll help shape both the product and parts of the architecture. It’s the combination of startup freedom with an enterprise touch - and your contributions will be visible and felt by millions of users worldwide.

Role Overview

 We’re looking for a Fullstack Developer with a strong front-end focus to help us continue to build and innovate our market-leading sports trading tool.

This role sits at the intersection of product, trading expertise, and platform engineering. You’ll work closely with our Product Owner, sports trading experts, and platform team to design and deliver intuitive, high-performance user interfaces for complex, real-time trading workflows.

Your primary focus will be front-end development using React, supported by Node.js and Python services. You’ll also collaborate closely with teams building backend services written in Python and Rust, all deployed on AWS with a strong preference for serverless architectures.

If you enjoy turning complex, data-heavy systems into elegant user experiences — and thrive in a collaborative, fast-moving startup environment — this role is for you.

 What you’ll do

• Design, develop, and maintain modern front-end applications using React and MUI X, with a strong focus on usability, performance, and reliability.
• Build and maintain front-end–facing services using Node.js and Python.
• Collaborate closely with Product Owners and sports trading experts to translate complex domain requirements into intuitive user experiences.
• Work alongside backend engineers developing services in Python and Rust to integrate real-time data and trading logic.
• Contribute to cloud-native solutions on AWS, with a preference for serverless designs.
• Participate in architectural discussions across the full stack and help shape front-end standards and best practices.
• Improve developer experience through testing, CI/CD, and shared tooling.
• Continuously evolve the sports trading platform as product and business needs grow.

What we believe you have

• Strong experience building front-end applications with React (experience with MUI / MUI X or similar libraries is a big plus).
• Solid understanding of fullstack development, including APIs and service integration.
• Experience with Node.js and Python in a production environment.
• Exposure to or interest in backend systems written in Python and/or Rust.
• Experience working with AWS and cloud-native architectures (serverless experience is a plus).
• Familiarity with modern software engineering practices such as automated testing, CI/CD, and version control.
• A collaborative mindset and comfort working closely with product managers and domain experts.
• Enjoyment of a fast-paced startup environment where priorities evolve.

#wearekambi