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! 

Why Join Exadel 

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.
What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client  

The company has been building solutions for mobile apps, effortless payment, business travel, and advertising since 1992. The customer is developing a mobility platform that allows operators to manage their vehicles and drivers efficiently, regulators to be informed and establish guidelines, service providers to deliver sustainable solutions, and riders to have an effortless transit experience.

Project Team

The project is a taxi ordering service and it contains the following components:

• Ride server (all data processing)
• Payment server (PCI DSS-compliant), which performs a transaction with the passenger's digital wallet and payment gateways
• Mobile application (hail taxi, geocoding, map, payments)
• Taxi terminal (3rd party)

The project integrates with 3rd party services, including PayPal, MasterPass, Stripe, and Twilio.

The team itself consists of 1 Team Lead, 1 UI Developers, 6 Back-End Developers, 9 Mobile Developers, 5 QA, 2 BA and 2 Designer.

What You’ll Do  

• Design, build, and operate reliable, scalable distributed systems
• Improve system availability, performance, and resilience
• Automate infrastructure, deployments, and operational processes
• Diagnose and resolve production issues
• Lead upgrades and migrations with minimal or zero downtime
• Participate in on-call rotations and incident response
• Collaborate closely with development teams to improve operability
• Drive best practices around monitoring, alerting, and capacity planning
• Reduce operational toil through automation
• Contribute to incident management, post-mortems, disaster recovery strategies, and continuous reliability improvements

What You Bring  

• 7+ years of experience, specializing in Kubernetes and AWS
• Strong programming skills in Java, with willingness to learn Ruby
• Solid understanding of concurrency, runtime behavior, and performance optimization
• Hands-on experience with Docker and containerized workloads
• Strong Kubernetes expertise (Deployments, StatefulSets, Services, Ingress, Helm, troubleshooting, autoscaling)
• Strong AWS experience (EC2, EKS, RDS, S3, IAM, VPC, Load Balancers, CloudWatch)
• Experience designing infrastructure for high availability and disaster recovery
• Experience with CI/CD pipelines and Infrastructure as Code (Terraform, CloudFormation, Pulumi, or similar
• Experience with RabbitMQ or similar messaging systems (Kafka, SQS, Pulsar, etc.
• Strong understanding of relational databases (MySQL/PostgreSQL), including query optimization, replication, and failover strategies
• Familiarity with NoSQL and in-memory databases (Redis, DynamoDB, MongoDB)
• Experience with distributed systems, microservices, capacity planning, and fault tolerance
• Experience with monitoring and observability tools (Prometheus, Grafana, Datadog, ELK/OpenSearch, OpenTelemetry)
• Strong understanding of Linux systems and networking fundamentals (TCP/IP, DNS, HTTP/HTTPS, TLS, load balancing)
• Experience with SRE practices, including SLOs/SLIs/SLAs, load testing, resilience testing, and incident management
• Strong communication skills and ability to collaborate across engineering teams
• Calm and effective during incidents with an ownership mindset

Nice to Have

• Experience operating production systems written in Ruby, Java, or other major platforms
• Framework experience such as Ruby on Rails, Spring Boot, or similar
• Experience operating high-traffic SaaS platforms
• Cost optimization in cloud environments
• Chaos engineering practices
• Experience mentoring junior engineers

English level

Upper-Intermediate

Legal & Hiring Information 

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Why Join Exadel 

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.
What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client  

The company has been building solutions for mobile apps, effortless payment, business travel, and advertising since 1992. The customer is developing a mobility platform that allows operators to manage their vehicles and drivers efficiently, regulators to be informed and establish guidelines, service providers to deliver sustainable solutions, and riders to have an effortless transit experience.

Project Team

The project is a taxi ordering service and it contains the following components:

• Ride server (all data processing)
• Payment server (PCI DSS-compliant), which performs a transaction with the passenger's digital wallet and payment gateways
• Mobile application (hail taxi, geocoding, map, payments)
• Taxi terminal (3rd party)

The project integrates with 3rd party services, including PayPal, MasterPass, Stripe, and Twilio.

The team itself consists of 1 Team Lead, 1 UI Developers, 6 Back-End Developers, 9 Mobile Developers, 5 QA, 2 BA and 2 Designer.

What You’ll Do  

• Design, build, and operate reliable, scalable distributed systems
• Improve system availability, performance, and resilience
• Automate infrastructure, deployments, and operational processes
• Diagnose and resolve production issues
• Lead upgrades and migrations with minimal or zero downtime
• Participate in on-call rotations and incident response
• Collaborate closely with development teams to improve operability
• Drive best practices around monitoring, alerting, and capacity planning
• Reduce operational toil through automation
• Contribute to incident management, post-mortems, disaster recovery strategies, and continuous reliability improvements

What You Bring  

• 7+ years of experience, specializing in Kubernetes and AWS
• Strong programming skills in Java, with willingness to learn Ruby
• Solid understanding of concurrency, runtime behavior, and performance optimization
• Hands-on experience with Docker and containerized workloads
• Strong Kubernetes expertise (Deployments, StatefulSets, Services, Ingress, Helm, troubleshooting, autoscaling)
• Strong AWS experience (EC2, EKS, RDS, S3, IAM, VPC, Load Balancers, CloudWatch)
• Experience designing infrastructure for high availability and disaster recovery
• Experience with CI/CD pipelines and Infrastructure as Code (Terraform, CloudFormation, Pulumi, or similar
• Experience with RabbitMQ or similar messaging systems (Kafka, SQS, Pulsar, etc.
• Strong understanding of relational databases (MySQL/PostgreSQL), including query optimization, replication, and failover strategies
• Familiarity with NoSQL and in-memory databases (Redis, DynamoDB, MongoDB)
• Experience with distributed systems, microservices, capacity planning, and fault tolerance
• Experience with monitoring and observability tools (Prometheus, Grafana, Datadog, ELK/OpenSearch, OpenTelemetry)
• Strong understanding of Linux systems and networking fundamentals (TCP/IP, DNS, HTTP/HTTPS, TLS, load balancing)
• Experience with SRE practices, including SLOs/SLIs/SLAs, load testing, resilience testing, and incident management
• Strong communication skills and ability to collaborate across engineering teams
• Calm and effective during incidents with an ownership mindset

Nice to Have

• Experience operating production systems written in Ruby, Java, or other major platforms
• Framework experience such as Ruby on Rails, Spring Boot, or similar
• Experience operating high-traffic SaaS platforms
• Cost optimization in cloud environments
• Chaos engineering practices
• Experience mentoring junior engineers

English level

Upper-Intermediate

Legal & Hiring Information 

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Why Join Exadel 

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next.
What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client  

The company has been building solutions for mobile apps, effortless payment, business travel, and advertising since 1992. The customer is developing a mobility platform that allows operators to manage their vehicles and drivers efficiently, regulators to be informed and establish guidelines, service providers to deliver sustainable solutions, and riders to have an effortless transit experience.

Project Team

The project is a taxi ordering service and it contains the following components:

• Ride server (all data processing)
• Payment server (PCI DSS-compliant), which performs a transaction with the passenger's digital wallet and payment gateways
• Mobile application (hail taxi, geocoding, map, payments)
• Taxi terminal (3rd party)

The project integrates with 3rd party services, including PayPal, MasterPass, Stripe, and Twilio.

The team itself consists of 1 Team Lead, 1 UI Developers, 6 Back-End Developers, 9 Mobile Developers, 5 QA, 2 BA and 2 Designer.

What You’ll Do  

• Design, build, and operate reliable, scalable distributed systems
• Improve system availability, performance, and resilience
• Automate infrastructure, deployments, and operational processes
• Diagnose and resolve production issues
• Lead upgrades and migrations with minimal or zero downtime
• Participate in on-call rotations and incident response
• Collaborate closely with development teams to improve operability
• Drive best practices around monitoring, alerting, and capacity planning
• Reduce operational toil through automation
• Contribute to incident management, post-mortems, disaster recovery strategies, and continuous reliability improvements

What You Bring  

• 7+ years of experience, specializing in Kubernetes and AWS
• Strong programming skills in Java, with willingness to learn Ruby
• Solid understanding of concurrency, runtime behavior, and performance optimization
• Hands-on experience with Docker and containerized workloads
• Strong Kubernetes expertise (Deployments, StatefulSets, Services, Ingress, Helm, troubleshooting, autoscaling)
• Strong AWS experience (EC2, EKS, RDS, S3, IAM, VPC, Load Balancers, CloudWatch)
• Experience designing infrastructure for high availability and disaster recovery
• Experience with CI/CD pipelines and Infrastructure as Code (Terraform, CloudFormation, Pulumi, or similar
• Experience with RabbitMQ or similar messaging systems (Kafka, SQS, Pulsar, etc.
• Strong understanding of relational databases (MySQL/PostgreSQL), including query optimization, replication, and failover strategies
• Familiarity with NoSQL and in-memory databases (Redis, DynamoDB, MongoDB)
• Experience with distributed systems, microservices, capacity planning, and fault tolerance
• Experience with monitoring and observability tools (Prometheus, Grafana, Datadog, ELK/OpenSearch, OpenTelemetry)
• Strong understanding of Linux systems and networking fundamentals (TCP/IP, DNS, HTTP/HTTPS, TLS, load balancing)
• Experience with SRE practices, including SLOs/SLIs/SLAs, load testing, resilience testing, and incident management
• Strong communication skills and ability to collaborate across engineering teams
• Calm and effective during incidents with an ownership mindset

Nice to Have

• Experience operating production systems written in Ruby, Java, or other major platforms
• Framework experience such as Ruby on Rails, Spring Boot, or similar
• Experience operating high-traffic SaaS platforms
• Cost optimization in cloud environments
• Chaos engineering practices
• Experience mentoring junior engineers

English level

Upper-Intermediate

Legal & Hiring Information 

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

ABOUT THE ROLE:

As an Engineering Manager at Tide, you will be responsible for building and running the products your team owns, covering everything our members need to run their business, from banking and payments through to administration and operational tooling.

This role offers an exceptional opportunity to make a real difference by taking ownership of engineering practices in a rapidly expanding company! We trust and empower our Engineering Managers to make real architectural decisions that affect their domain and shape the future of Tide’s Platform.

We operate in domain-aligned, full-stack teams that own products end to end. Engineers self-organise, collaborate on technical challenges, and define shared standards through Communities of Practice.

• Leading & Directly managing a cross functional team
• Partnering with a Product Manager to form the Product Engineering Duo
• Deeply caring about what’s being built as much as the how
• Being responsible of the delivery of the team - quality, stability, timelines, dependencies
• Being responsible of the tech excellence and architecture within the scope of the team
• Driving the continuous improvement of the team performance as measured by DORA
• Securing the continuous growth and wellbeing of the engineers on their team
• Being hands-on, carefully dividing your time between design, coding and coaching other team members. You will be the person people turn to seeking advice and solutions to difficult problems.

WHAT WE ARE LOOKING FOR: 

• Extensive experience (10+ years) building server-side applications and detailed knowledge of Java
• Sound knowledge of a backend framework (e.g. Spring/Spring Boot) 
• Experience with running microservices and implementing and consuming RESTful APIs
• Experience engineering scalable and reliable solutions in a cloud-native environment 
• A mindset of delivering secure, well-tested and well-documented software 
• Full ownership of your code and technical solutions across their entire lifecycle, from development to production.
• Experience integrating with various third party providers and partners 
• Sound knowledge and experience working with relational databases
• Work effectively in an agile environment, using its practices to deliver value consistently and adapt quickly
• Ability to communicate technical concepts to a non-technical audience 
• Apply continuous integration, delivery, and deployment practices in day-to-day development to deliver software reliably to production
• A technical hands on leader who is in the details of what the team is working on day to day
• Experience  leading teams
• Experience directly managing people

Our Tech Stack

• Java, Spring Boot and JOOQ to build the RESTful APIs of our microservices (but we welcome people who are used to any strongly typed general purpose programming language!) 
• Event-driven architecture with messages over SNS+SQS and Kafka to make them reliable 
• Primary datastores are PostgreSQL via RDS or Aurora (we are heavy AWS users) 
• Docker, Terraform, ArgoCD and, EKS provided by the Cloud team to run the platform 
• DataDog for monitoring, observability and automated SLOs
• GitHub, Semgrep and solid testing to power the CI/CD pipelines - new joiners are encouraged to have something deployed to production in their first week 
• Angular on Web, Flutter for our mobile app, but from time to time we use Swift and Kotlin
• Fivetran/BigQuery/Looker for the BI insights and Python/FastAPI/Faust + some ML libs for the automated decisioning and risk management

WHAT YOU’LL GET IN RETURN

• The gross monthly salary for this position ranges from 7400€ to 11560€, depending on your skills, and experience.
• Private Health Insurance
• 25 days paid annual leave
• 3 paid days off for volunteering or L&D activities
• Parental Leave days 
• Family-Friendly Leave 
• Personal L&D budget in the amount of 500 EUR per year
• Mental wellbeing platform Plumm
• WFH equipment allowance
• Sabbatical Leave
• Share options
• Team Events

TIDEAN WAYS OF WORKING

At Tide, we champion a flexible workplace model that supports both in-person and remote work to cater to the specific needs of our different teams. 

While remote work is supported, we believe in the power of face-to-face interactions to foster team spirit and collaboration. Our offices are designed as hubs for innovation and team-building, where we encourage regular in-person gatherings to foster a strong sense of community.

ABOUT THE ROLE:

As an Engineering Manager at Tide, you will be responsible for building and running the products your team owns, covering everything our members need to run their business, from banking and payments through to administration and operational tooling.

This role offers an exceptional opportunity to make a real difference by taking ownership of engineering practices in a rapidly expanding company! We trust and empower our Engineering Managers to make real architectural decisions that affect their domain and shape the future of Tide’s Platform.

We operate in domain-aligned, full-stack teams that own products end to end. Engineers self-organise, collaborate on technical challenges, and define shared standards through Communities of Practice.

• Leading & Directly managing a cross functional team of 8-12 engineers
• Partnering with a Product Manager to form the Product Engineering Duo
• Deeply caring about what’s being built as much as the how
• Being responsible of the delivery of the team - quality, stability, timelines, dependencies
• Being responsible of the tech excellence and architecture within the scope of the team
• Driving the continuous improvement of the team performance as measured by DORA
• Securing the continuous growth and wellbeing of the engineers on their team
• Being hands-on, carefully dividing your time between design, coding and coaching other team members. You will be the person people turn to seeking advice and solutions to difficult problems.

WHAT WE ARE LOOKING FOR: 

• Extensive experience (10+ years) building server-side applications and detailed knowledge of of Python, Java, C#, or another similar language
• Sound knowledge of a backend framework (e.g. Spring/Spring Boot) 
• Experience with running microservices and implementing and consuming RESTful APIs
• Experience engineering scalable and reliable solutions in a cloud-native environment 
• A mindset of delivering secure, well-tested and well-documented software 
• Full ownership of your code and technical solutions across their entire lifecycle, from development to production.
• Experience integrating with various third party providers and partners 
• Sound knowledge and experience working with relational databases
• Work effectively in an agile environment, using its practices to deliver value consistently and adapt quickly
• Ability to communicate technical concepts to a non-technical audience 
• Apply continuous integration, delivery, and deployment practices in day-to-day development to deliver software reliably to production
• A technical hands on leader who is in the details of what the team is working on day to day
• Experience  leading teams
• Experience directly managing people

Our Tech Stack

• Python, Java, Spring Boot and JOOQ to build the RESTful APIs of our microservices (but we welcome people who are used to any strongly typed general purpose programming language!) 
• Event-driven architecture with messages over SNS+SQS and Kafka to make them reliable 
• Primary datastores are PostgreSQL via RDS or Aurora (we are heavy AWS users) 
• Docker, Terraform, ArgoCD and, EKS provided by the Cloud team to run the platform 
• DataDog for monitoring, observability and automated SLOs
• GitHub, Semgrep and solid testing to power the CI/CD pipelines - new joiners are encouraged to have something deployed to production in their first week 
• Angular on Web, Flutter for our mobile app, but from time to time we use Swift and Kotlin
• Fivetran/BigQuery/Looker for the BI insights and Python/FastAPI/Faust + some ML libs for the automated decisioning and risk management

WHAT YOU’LL GET IN RETURN: 

Our location-specific employee benefits are designed to cater to the unique needs of Tideans: 

• 25 days paid annual leave
• 3 paid days off for volunteering or L&D activities
• Extended maternity and paternity leave covered by the company
• Personal L&D budget in the amount of 500 EUR per year
• Additional health & dental insurance
• Mental wellbeing platform
• Fully covered Multisports card
• Food vouchers
• Snacks, light food, drinks in the office
• WFH equipment allowance
• Flexible working from home
• Sabbatical Leave
• Share options

TIDEAN WAYS OF WORKING

At Tide, we champion a flexible workplace model that supports both in-person and remote work to cater to the specific needs of our different teams. 

While remote work is supported, we believe in the power of face-to-face interactions to foster team spirit and collaboration. Our offices are designed as hubs for innovation and team-building, where we encourage regular in-person gatherings to foster a strong sense of community.

ABOUT THE ROLE:

As an Engineering Manager at Tide, you will be responsible for building and running the products your team owns, covering everything our members need to run their business, from banking and payments through to administration and operational tooling.

This role offers an exceptional opportunity to make a real difference by taking ownership of engineering practices in a rapidly expanding company! We trust and empower our Engineering Managers to make real architectural decisions that affect their domain and shape the future of Tide’s Platform.

We operate in domain-aligned, full-stack teams that own products end to end. Engineers self-organise, collaborate on technical challenges, and define shared standards through Communities of Practice.

• Leading & Directly managing a cross functional team of 8-12 engineers
• Partnering with a Product Manager to form the Product Engineering Duo
• Deeply caring about what’s being built as much as the how
• Being responsible of the delivery of the team - quality, stability, timelines, dependencies
• Being responsible of the tech excellence and architecture within the scope of the team
• Driving the continuous improvement of the team performance as measured by DORA
• Securing the continuous growth and wellbeing of the engineers on their team
• Being hands-on, carefully dividing your time between design, coding and coaching other team members. You will be the person people turn to seeking advice and solutions to difficult problems.

WHAT WE ARE LOOKING FOR: 

• Extensive experience (10+ years) building server-side applications and detailed knowledge of of Python, Java, C#, or another similar language
• Sound knowledge of a backend framework (e.g. Spring/Spring Boot) 
• Experience with running microservices and implementing and consuming RESTful APIs
• Experience engineering scalable and reliable solutions in a cloud-native environment 
• A mindset of delivering secure, well-tested and well-documented software 
• Full ownership of your code and technical solutions across their entire lifecycle, from development to production.
• Experience integrating with various third party providers and partners 
• Sound knowledge and experience working with relational databases
• Work effectively in an agile environment, using its practices to deliver value consistently and adapt quickly
• Ability to communicate technical concepts to a non-technical audience 
• Apply continuous integration, delivery, and deployment practices in day-to-day development to deliver software reliably to production
• A technical hands on leader who is in the details of what the team is working on day to day
• Experience  leading teams
• Experience directly managing people

Our Tech Stack

• Python, Java, Spring Boot and JOOQ to build the RESTful APIs of our microservices (but we welcome people who are used to any strongly typed general purpose programming language!) 
• Event-driven architecture with messages over SNS+SQS and Kafka to make them reliable 
• Primary datastores are PostgreSQL via RDS or Aurora (we are heavy AWS users) 
• Docker, Terraform, ArgoCD and, EKS provided by the Cloud team to run the platform 
• DataDog for monitoring, observability and automated SLOs
• GitHub, Semgrep and solid testing to power the CI/CD pipelines - new joiners are encouraged to have something deployed to production in their first week 
• Angular on Web, Flutter for our mobile app, but from time to time we use Swift and Kotlin
• Fivetran/BigQuery/Looker for the BI insights and Python/FastAPI/Faust + some ML libs for the automated decisioning and risk management

WHAT YOU’LL GET IN RETURN: 

Our location-specific employee benefits are designed to cater to the unique needs of Tideans: 

• Remote first
• 25 days of paid annual leave
• 3 paid days off for volunteering or L&D activities
• Private Health Insurance
• Mental Health Support Platform
• FitPass
• Family and friendly leave (according to statutory)
• Personal L&D budget
• Share Options

TIDEAN WAYS OF WORKING

At Tide, we champion a flexible workplace model that supports both in-person and remote work to cater to the specific needs of our different teams. 

While remote work is supported, we believe in the power of face-to-face interactions to foster team spirit and collaboration. Our offices are designed as hubs for innovation and team-building, where we encourage regular in-person gatherings to foster a strong sense of community.

Our Partner 

Our partner (listed on NASDAQ) is the leading expert in 5G ready cloud-native, network intelligence solutions for telecom operators transitioning to 5G. Their Network Intelligence consists of Network Visibility, Service Assurance, and Network Insights. The Network Intelligence suite offers intelligent, container-based, on-demand solutions to deliver network analysis from the RAN to the Core for 5G assurance. Utilizing automated and dynamic solutions with smart minimal data collection and on-demand troubleshooting and cutting-edge techniques based on machine learning, these solutions work in harmony to provide operators an understanding of the entire customer experience and allow them to troubleshoot network performance from a high to granular level while reducing storage costs and cloud resource utilization.

Role Overview

We are looking for a proactive and experienced Fullstack Java Developer to help migrate existing Node.js backend services to a robust Java-based architecture. This role is ideal for someone with a strong backend focus on Java, while also being comfortable working across the stack with modern frontend technologies like React or Angular. You will be responsible for designing, implementing, and maintaining scalable solutions, collaborating with cross-functional teams, and ensuring seamless integration across systems. You will be part of the Infra team within the Infra & Orch Group, which focuses on developing tools and processes for installing, configuring, and managing our Partner’s products. The Infra team is responsible for both in-house applications that support product infrastructure (such as user management, authentication integrations, and system configurations) as well as third-party open-source solutions, including databases (MongoDB, Vertica), monitoring tools (Prometheus, EFK), and other technologies like Kafka and MinIO. 

Responsibilities 

• Migrate backend components from Node.js to Java, using frameworks such as Spring and Hibernate. 
• Design and implement scalable, maintainable backend services and APIs. 
• Design data models and queries with Spring Data, optimizing for performance and scalability. 
• Work with NoSQL databases (e.g., MongoDB, Couchbase). 
• Services with Apache Kafka for message streaming. 
• Maintain and improve existing frontend components using HTML, CSS, JavaScript, and modern frameworks like React or Angular. 
• Collaborate with the product owner, architect, frontend developers, DevOps, and other team members on end-to-end product delivery. 
• Take end-to-end responsibility for backend features – from requirements gathering to production support. 
• Identify bottlenecks, bugs, and devise elegant solutions to mitigate and address them. 
• Implement best practices for code quality, testing, and performance optimization. 
• Write unit and integration tests for critical components. 
• Participate in code reviews and technical design discussions. 
• Deploy and manage microservices in containerized environments using Docker and Kubernetes. 

Requirements 

Must Have: 

• Bachelor’s degree or Master’s degree in Computer Science or Computer Engineering. 
• 5+ years overall Java developer experience.  
• Experience working with frameworks such as Spring, Hibernate, REST API. 
• Experience with NoSQL databases like MongoDB or Couchbase. 
• Strong understanding of JavaScript (ES6+) and asynchronous programming. 
• Experience implementing OAuth2, JWT and SSO mechanism. 
• Experience with authentication, authorization protocols and API security practices. 
• Familiarity with Git and version control workflows. 
• Basic understanding of Docker, Kubernetes, Helm and microservices. 
• Good understanding of software development principles and lifecycles. 
• Knowledge of CI/CD pipelines (e.g., Git, Jenkins). 
• Experience in NodeJs. 
• Fluent English. 
• Strong analytical and problem-solving skills. 
• Highly independent and self-motivated. 
• Good communication skills and the ability to work closely with frontend teams. 
• Proactive communicator, comfortable raising concerns and proposing improvements. 

Nice to Have: 

• Experience with TypeScript in Node.js applications. 
• Comfortable with frontend technologies like React, Angular (React preferred). 
• Familiar working with Vertica DB or other relational databases. 
• Familiarity with 3rd party tools (Grafana, Prometheus, ELK). 
• Understanding of message queues (e.g., Kafka, RabbitMQ). 
• Familiarity with Swagger or similar tools for API documentation. 
• Familiarity with Elasticsearch for search capabilities and log analytics. 

Reasons to Work with Us 

• Competitive financial conditions. 
• Opportunity to work on internationally recognized projects. 
• Flexible schedule and a hybrid work model, prioritizing remote work as much as possible to support work-life balance. 
• An exciting career path within a friendly, dynamic, and growing organization. 
• Professional development opportunities in a multicultural environment. 
• Private medical coverage with Medlife or Regina Maria. 
• Meal vouchers. 
• Gift vouchers for special occasions such as birthdays, weddings, or childbirth. 
• Wellbeing programs, including sick days, 7Card subscriptions, and relaxation facilities in the office. 
• Team-building events and other social experiences. 
• Budget allocated for certifications relevant to your project. 
• Workshops, internal training sessions, and knowledge-sharing opportunities. 
• Convenient city-center office location. 
• Shared parking spaces. 

As a global digital transformation company, Orion values creating a productive, diverse work environment. We are committed to maintaining a positive work environment where our people value traits that make each one of us different from one another. We all bring a diverse set of perspectives, work and life experiences, and our differences make us more valuable both internally and for our clients. 

Java Backend Engineer

Hybrid, Bucharest, Romania

JOB OVERVIEW

The Legion application is a high-performance data-driven Java enterprise application that implements sophisticated scheduling and optimization algorithms. It also provides the necessary endpoints for our Web and mobile frontend applications. As a Senior Software Engineer, you will be a member of the team responsible for the implementation and evolution of this application. You will need to be able to write secure, efficient, enterprise-quality Java code, and have a deep understanding of the techniques and technologies that are necessary for scalability and performance. You will also need knowledge and experience with data modeling and relational databases. Our application runs on AWS, so experience with containerization and cloud deployments is desirable. We're using Springboot, Hibernate, MySQL, and JSON, so familiarity with these technologies will be helpful. Frontend experience in JavaScript and Angular and/or React is a big plus.

RESPONSIBILITIES AND DUTIES

• Develop features with high quality and on-time
• Thorough understanding of product area 
• Assist with feature design along with CTO/Architect
• Develop features keeping in mind best coding practices including performance and user experience
• Own product quality
• Test features before asking QA engineers to test
• Write unit tests
• Work with QA engineers to test the product end-to-end
• Fix incoming bugs daily: Adhere to bug resolution goals and SLA
• Be able to demo the Legion product end-to-end
• Devise robust solutions that enable product engineering teams to rapidly deliver features in a scalable and performant manner
• Design, build, and support applications from End to End.
• Make data-driven technical decisions
• Use your deep technical knowledge to debug and solve complex technical problems
• Identify and resolve ambiguities in requirements in consultation with the various stakeholders
• Contribute to the long-term team charter and quarterly planning
• Mentor others on the team, and hold a high bar for code quality and standards by conducting design reviews, code reviews, and providing feedback
• Work with QA team to make the feature as Production ready.

REQUIRED SKILLS AND QUALIFICATIONS

• Bachelor's Degree in Computer Science, Engineering or related discipline
• Strong individual contributor with the ability to research
• 3-5 years with backend technologies (Java, Spring Boot, MySQL)
• 3-5 years working on building multi-tenant SaaS applications
• 3-5 years experience with designing and building APIs
• 3+ years delivering software in a cloud-based environment (AWS, GCP, Azure)
• Professional software development experience
• Proficiency in Java or C++, and object-oriented design skills
• Application architecture and design patterns
• Experience serving as technical lead throughout the full software development lifecycle, from conception, architecture definition, detailed design, scoping, planning, implementation, and testing to documentation, delivery, and maintenance is preferred
• Knowledge of professional software engineering and best practices for the full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations
• Experience in the development of distributed/scalable systems and high-volume transaction applications
• Proven ability to lead projects from inception to production
• Strong mastery in communication skills, software architecture design, writing technical documents
• Strong personal work ethic focused on prioritization, being action-oriented, and being driven to achieve positive results

PREFERRED QUALIFICATIONS AND ATTRIBUTES

• Proactive and able to command respect through intelligence, hard work, and persistence
• Personal passion and fervor for industry-leading next-generation technology
• Ability to operate in an environment with limited resources
• A great communicator who can distill powerful messages that resonate with customers 
• Track record of building positive relationships with peers 
• Continuous and thoughtful listener, able to learn from others and leverage input
• Strong personal work ethic focused on high-priority issues; action and results-oriented
• Unquestionable integrity, credibility, and character; demonstrated high moral and ethical behavior
• Proficiency with AWS products and services
• Experience in managing frameworks/systems for ensuring code quality such as Coverity, SonarQub, etc.

ABOUT LEGION

Join Legion's mission to turn hourly jobs into good jobs. We're a mission-driven team seeking exceptional talent to propel this vision. Embrace a culture that's collaborative, fast-paced, and entrepreneurial. With us, you'll grow your skills, work closely with experienced executives, and contribute significantly to our mission. Our award-winning AI-native workforce management platform is intelligent, automated, and employee-centric and proven to deliver 13x ROI. We help labor-intensive organizations maximize labor efficiency and employee engagement simultaneously. Legion has earned recognition for its innovation, including spots on the Inc. 5000 list, Forbes’ Next Billion Dollar Startups, and awards for our AI technology. Backed by leading investors such as Norwest Venture Partners, Stripes, First Round Capital, XYZ Ventures, Webb Investment Network, Workday Ventures, and NTT DOCOMO Ventures, we're making real change. If you're ready to make an impact and grow your career, Legion is where you belong. Join us in making hourly work rewarding and fulfilling.

BACKGROUND AND OPPORTUNITY

There are almost 75 million hourly workers in the United States, representing more than half of the entire workforce. Historically, managing hourly employees has been difficult due to high attrition (average of 60%) and high replacement costs (average of $3,200 per employee in retail). The ongoing labor shortage and competition from the gig economy, make it more difficult to attract and retain hourly employees. The top reasons hourly employees leave their jobs are a lack of schedule empowerment, poor communication with employers, and an inability to get paid early. Gen Z and the millennial workforce demand gig-like flexibility, modern technology, and compelling work options. Legion’s mission is to turn hourly jobs into good jobs, serving the hourly workers who make up the majority of the US workforce. We believe in empowering employees and helping employers be efficient and innovative by enabling intelligent automation powered by Legion’s Workforce Management platform to optimize labor efficiency and enhance the employee experience simultaneously. 

Legion WFM was built for the cloud with AI at the core and is designed to handle the complexity of modern businesses and meet the needs of today’s hourly employees. Our team is composed of dedicated individuals from all backgrounds and experiences, globally distributed across all time zones. For more information, visit https://legion.co 

COMPENSATION & BENEFITS

At Legion, we offer competitive compensation and benefits packages to all employees. As a hybrid employer in Bucharest, Romania, pay for positions is determined using local, national, and industry-specific survey data. We strive to make competitive offers allowing employees room for future growth. Salaries will be based on the applicant’s location, level of experience, education, and specialized knowledge and skills. Additionally, we consider the external market rate, the amount we have budgeted internally, and internal equity within the company for the same position. 

Benefits include, but are not limited to: 

• Health Benefits
• Paid Time Off and Paid Holidays
• Equity
• Monthly Wellness Reimbursement
• Meal Vouchers

EQUAL EMPLOYMENT OPPORTUNITY

Legion Technologies is proud to be an equal opportunity employer and is committed to maintaining a diverse and inclusive work environment. All qualified applicants will be considered for employment without regard to race, color, religion, sex, age, disability, marital status, familial status, sexual orientation, pregnancy, genetic information, gender identity, gender expression, national origin, ancestry, citizenship status, veteran status, and any other legally protected status under federal, state, or local anti-discrimination laws.

DISABILITY ACCOMMODATION

For individuals with disabilities who need additional assistance at any point in the application and interview process, please email recruiting@legion.co 

Java Backend Engineer

Hybrid, Bucharest, Romania

JOB OVERVIEW

The Legion application is a high-performance data-driven Java enterprise application that implements sophisticated scheduling and optimization algorithms. It also provides the necessary endpoints for our Web and mobile frontend applications. As a Senior Software Engineer, you will be a member of the team responsible for the implementation and evolution of this application. You will need to be able to write secure, efficient, enterprise-quality Java code, and have a deep understanding of the techniques and technologies that are necessary for scalability and performance. You will also need knowledge and experience with data modeling and relational databases. Our application runs on AWS, so experience with containerization and cloud deployments is desirable. We're using Springboot, Hibernate, MySQL, and JSON, so familiarity with these technologies will be helpful. Frontend experience in JavaScript and Angular and/or React is a big plus.

RESPONSIBILITIES AND DUTIES

• Design and implement: Build scalable, high-performance, and secure features for our Time & Attendance engine, including time-tracking, scheduling rules, overtime logic, and labor compliance calculations.
• Leverage AI tooling daily: Use AI coding assistants and LLM-powered tools throughout your workflow — code generation, test scaffolding, code review acceleration, documentation, and debugging — and share learnings with your team.
• Own quality: Write comprehensive unit tests, integration tests, and collaborate on automated test suites. AI-generated code still needs rigorous human review and validation.
• Drive technical decisions: Participate actively in architecture discussions, propose solutions, and document trade-offs with clarity.
• Mentor and review: Give substantive code reviews, pair with junior engineers, and model best practices including responsible AI-assisted development.
• Collaborate cross-functionally: Work closely with Product Management, UX, and QA to translate business requirements into robust technical specifications and BDD scenarios.
• Troubleshoot production issues: Diagnose and resolve complex bugs in distributed, high-volume environments with urgency and care.
• Continuously improve: Identify and drive performance, scalability, and reliability improvements across the platform.
• Uphold security standards: Participate in security reviews and ensure implementations comply with industry standards and internal policies.

REQUIRED SKILLS AND QUALIFICATIONS

• Experience: 5-10+ years of professional software development with deep expertise in Java (or C++) in enterprise or SaaS environments.
• AI tooling proficiency: Demonstrated, habitual use of AI coding assistants (e.g., GitHub Copilot, Cursor, Claude Code, ChatGPT, Tabnine) in daily development - you should be able to describe specific workflows where AI tooling materially changed how you work.
• Backend depth: Strong command of Spring Boot, REST API design, Hibernate/JPA, and relational databases (MySQL or equivalent), including query optimization and indexing strategies.
• Distributed systems: Solid understanding of microservices architecture, asynchronous patterns, and high-volume transaction handling.
• Cloud & containerization: Hands-on experience with AWS and containerized deployments (Docker, Kubernetes).
• Software craftsmanship: Deep familiarity with coding standards, code review practices, CI/CD pipelines, and DevOps principles.
• Testing discipline: Proven ability to write and maintain unit tests, integration tests, and automated test suites - including for AI-generated code.
• Problem-solving: Demonstrated ability to troubleshoot and debug complex, multi-layered systems independently.
• Communication: Excellent written and verbal communication skills; able to document technical decisions clearly for both engineers and non-technical stakeholders.
• Education: Bachelor's or Master's degree in Computer Science, Computer Engineering, or equivalent practical experience.

PREFERRED QUALIFICATIONS AND ATTRIBUTES

• AI-native workflow: You've gone beyond autocomplete — you use AI for architecture brainstorming, test generation, spec drafting, PR summaries, and are actively experimenting with agentic coding tools.
• Workforce management or HCM domain experience: Familiarity with time-and-attendance, payroll, scheduling, or labor compliance systems is a significant advantage.
• Frontend exposure: Working knowledge of JavaScript and either Angular or React.
• Leadership track record: Experience informally leading feature teams, running design reviews, or serving as a technical point of contact for a product area.
• Performance engineering: Prior work on query optimization, caching strategies, or throughput/latency improvements in high-volume applications.
• Agile fluency: Comfortable operating in fast-paced sprint cycles with evolving requirements.
• Integrity and judgment: Demonstrated ethical behavior and sound judgment, including when evaluating AI-generated outputs for correctness, bias, and security implications.

In your interviews, we'll ask you to describe:

• Which AI coding tools you use and how frequently.
• A specific example where an AI tool helped you design, refactor, or debug something non-trivially.
• How you validate and review AI-generated code to catch errors, security issues, or performance problems.
• Your view on the limits of current AI coding assistants and where human judgment remains essential.

We are not looking for performative AI enthusiasm. We are looking for engineers who have genuinely integrated these tools into their craft and can think critically about their strengths and failure modes.

ABOUT LEGION

Join Legion's mission to turn hourly jobs into good jobs. We're a mission-driven team seeking exceptional talent to propel this vision. Embrace a culture that's collaborative, fast-paced, and entrepreneurial. With us, you'll grow your skills, work closely with experienced executives, and contribute significantly to our mission. Our award-winning AI-native workforce management platform is intelligent, automated, and employee-centric and proven to deliver 13x ROI. We help labor-intensive organizations maximize labor efficiency and employee engagement simultaneously. Legion has earned recognition for its innovation, including spots on the Inc. 5000 list, Forbes’ Next Billion Dollar Startups, and awards for our AI technology. Backed by leading investors such as Norwest Venture Partners, Stripes, First Round Capital, XYZ Ventures, Webb Investment Network, Workday Ventures, and NTT DOCOMO Ventures, we're making real change. If you're ready to make an impact and grow your career, Legion is where you belong. Join us in making hourly work rewarding and fulfilling.

BACKGROUND AND OPPORTUNITY

There are almost 75 million hourly workers in the United States, representing more than half of the entire workforce. Historically, managing hourly employees has been difficult due to high attrition (average of 60%) and high replacement costs (average of $3,200 per employee in retail). The ongoing labor shortage and competition from the gig economy, make it more difficult to attract and retain hourly employees. The top reasons hourly employees leave their jobs are a lack of schedule empowerment, poor communication with employers, and an inability to get paid early. Gen Z and the millennial workforce demand gig-like flexibility, modern technology, and compelling work options. Legion’s mission is to turn hourly jobs into good jobs, serving the hourly workers who make up the majority of the US workforce. We believe in empowering employees and helping employers be efficient and innovative by enabling intelligent automation powered by Legion’s Workforce Management platform to optimize labor efficiency and enhance the employee experience simultaneously. 

Legion WFM was built for the cloud with AI at the core and is designed to handle the complexity of modern businesses and meet the needs of today’s hourly employees. Our team is composed of dedicated individuals from all backgrounds and experiences, globally distributed across all time zones. For more information, visit https://legion.co 

COMPENSATION & BENEFITS

At Legion, we offer competitive compensation and benefits packages to all employees. As a hybrid employer in Bucharest, Romania, pay for positions is determined using local, national, and industry-specific survey data. We strive to make competitive offers allowing employees room for future growth. Salaries will be based on the applicant’s location, level of experience, education, and specialized knowledge and skills. Additionally, we consider the external market rate, the amount we have budgeted internally, and internal equity within the company for the same position. 

Benefits include, but are not limited to: 

• Health Benefits
• Paid Time Off and Paid Holidays
• Equity
• Monthly Wellness Reimbursement
• Meal Vouchers

EQUAL EMPLOYMENT OPPORTUNITY

Legion Technologies is proud to be an equal opportunity employer and is committed to maintaining a diverse and inclusive work environment. All qualified applicants will be considered for employment without regard to race, color, religion, sex, age, disability, marital status, familial status, sexual orientation, pregnancy, genetic information, gender identity, gender expression, national origin, ancestry, citizenship status, veteran status, and any other legally protected status under federal, state, or local anti-discrimination laws.

DISABILITY ACCOMMODATION

For individuals with disabilities who need additional assistance at any point in the application and interview process, please email recruiting@legion.co