Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology- and data-driven group implementing a scientific approach to investing. Combining data, research, technology, and trading expertise has shaped our collaborative mindset, which enables us to solve the most complex challenges. QRT’s culture of innovation continuously drives our ambition to deliver high-quality returns for our investors. 
 
The Network Engineering function is responsible for the design, reliability, and optimisation of QRT’s wide-area network. The team supports large-scale routing infrastructure and collaborates closely with stakeholders across operations, systems engineering, and automation to ensure robust connectivity for global research and trading activities.   

Your Future Role within QRT 
You will: 

• Design, build, and operate scalable, resilient infrastructure configuration and platform services 
• Develop and maintain CI/CD pipelines to enable efficient and reliable software delivery 
• Implement and evolve observability systems using OpenTelemetry (OTel), including distributed tracing, metrics, and logging 
• Troubleshoot complex system issues, perform root cause analysis, and implement long-term fixes 
• Automate infrastructure provisioning and configuration using scripting and infrastructure-as-code approaches 
• Work closely with engineers to improve system design, deployment processes, and runtime performance 
• Operate and optimise containerised environments and orchestration platforms (e.g. Kubernetes) 
• Take ownership of services and features from implementation through production support and continuous improvement 
• Collaborate with stakeholders to understand requirements and deliver effective technical solutions 

Your Present Skillset 

• Strong Linux systems expertise, including debugging and performance tuning 
• Solid networking knowledge (TCP/IP, DNS, firewalls, VRFs, VLANs, BGP) 
• Proficiency in Bash and Python for automation and tooling 
• Experience with Python web frameworks (e.g. Flask, Django REST Framework) 
• Experience building RESTful APIs 
• Hands-on experience with containerisation (Docker) and container orchestration (Kubernetes) 
• Experience with monitoring and logging stacks (Prometheus, Grafana, Loki) 
• Understanding of asynchronous and multi-threaded systems 
• Experience working with CI/CD systems in production environments 
• Familiarity with distributed systems and common reliability patterns 
• Ability to define and measure KPIs, SLAs, and SLOs 
• Strong communication skills and ability to work with both technical and non-technical stakeholders 
• Desirable: 
  • Familiarity with infrastructure-as-code tools (i.e. Terraform)  
  • Experience with cloud platforms (i.e. AWS)  
  • Knowledge of OpenTelemetry (OTel), including instrumentation, tracing, metrics, and observability pipelines  

 
QRT is an equal opportunity employer. We welcome diversity as essential to our success. QRT empowers employees to work openly and respectfully to achieve collective success. In addition to professional achievement, we are offering initiatives and programs to enable employees achieve a healthy work-life balance. 

About the Team

SevenRooms is a hospitality technology platform that powers restaurant operations and marketing, and was recently acquired by DoorDash! The SevenRooms product enables operators to automatically drive revenue & profitability by leveraging data to build direct relationships, deliver exceptional experiences, and increase repeat business. The SevenRooms “In-Store” Technology organization at DoorDash is committed to building products that help restaurants create magical experiences every day. We are a small, but rapidly growing team of 70+ engineers, scientists and builders who are on a mission to fundamentally transform the hospitality industry. Our tech stack includes Python, Typescript, ReactJS, Redux, Django, App Engine, Cloud Firestore, Memcache, Cloud Tasks, Firebase, BigQuery, Elasticsearch, and more.

About the Role

We're looking for a strong Backend-focused Software Engineer who is excited to engineer highly performant, mission-critical systems that are designed for agile development and rapid scaling. You will partner with other engineers, product managers and designers who are dedicated to engineering real solutions that empower our In-Store team for growth. You will be joining an organization of engineering professionals working to fundamentally transform the hospitality industry through innovative technology solutions.

You’re excited about this opportunity because you will…

• Design, develop, test, deploy, maintain and improve software. Focus strongly on customer-facing features that create magical experiences for restaurant partners. 
• Be the technical owner of features from design to implementation. Take ownership of ongoing support and ensure high-quality delivery throughout the development lifecycle.
• Manage individual project priorities, deadlines, code quality and deliverables. Participate in occasional on-call duties to keep software systems up and running smoothly. 
• Partner with cross-functional teams including engineers, product managers and designers. Collaborate to engineer real solutions that drive growth and innovation in the hospitality industry. 
• Work with cutting-edge technology stack. Utilize tools like Python, Django, and modern cloud infrastructure to build scalable solutions.

We’re excited about you because…

• You have a BS degree in Computer Science, similar technical field of study or equivalent professional experience with 3+ years of software engineering experience 
• You have experience developing web applications with strong knowledge of algorithms, data structures, complexity analysis and software design 
• You have experience with Python (preferred), or another modern backend technology, and are excited to work with our modern technology stack
• You are passionate about building customer-facing features and take ownership of technical solutions from conception to deployment 
• You thrive in collaborative environments and are excited to work with cross-functional teams to solve complex problems in the hospitality industry

Notice to Applicants for Jobs Located in NYC or Remote Jobs Associated With Office in NYC Only

We use Covey as part of our hiring and/or promotional process for jobs in NYC and certain features may qualify it as an AEDT in NYC. As part of the hiring and/or promotion process, we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound from August 21, 2023, through December 21, 2023, and resumed using Covey Scout for Inbound again on June 29, 2024.

The Covey tool has been reviewed by an independent auditor. Results of the audit may be viewed here: Covey

What You’ll Do:

The Monolith AI Engineering Team at CoreWeave is responsible for building and scaling the core platform that powers the world’s most advanced engineering simulation and AI workflows — our ambition is to become the super‑intelligent AI test lab for the engineering industry, helping customers “ship science, faster.” From evolving distributed architecture to enabling the next generation of agentic interfaces and physical AI, this team delivers the performant, reliable, and scalable foundation trusted by the world’s largest engineering companies.

The Fullstack Engineer (Frontend Focus) will own and evolve the Monolith platform’s product surface — the data‑heavy, workflow‑centric web experience where engineers design experiments, compare runs, interact with agents, and turn complex physical test data into decisions. You’ll partner closely with Design, Product, and Backend Engineering to ship UI and UX that feel fast, intuitive, and trustworthy for non‑ML expert engineers, while also contributing to our Python backend services when needed.

About the Role:

We’re targeting an IC5 Fullstack Staff Engineer with a strong frontend background, and are also open to exceptional Senior Fullstack Engineer II (IC4) candidates who can operate at staff‑like scope. The role is heavily frontend‑weighted (roughly 80–90%), focused on owning the Monolith web application: component architecture, design system evolution, performance, and UX for complex, data‑rich workflows. You’ll also work across our Python services (FastAPI/Flask) to shape and integrate APIs, bring new platform capabilities to the UI, and occasionally deliver backend features that unlock better user experiences.

You’ll be a key partner in defining how engineers experience Monolith’s “AI test lab” — from agent chat to experiment exploration and monitoring — and will help set the bar for frontend quality, reliability, and developer experience across the team.

In this role, you will:

Frontend Ownership & Experience

• Own significant areas of the Monolith frontend, from architecture and component design to implementation, refactors, and ongoing maintenance.
• Design and build modern, responsive UIs using React and TypeScript, with a focus on complex, data‑heavy views (tables, charts, experiment timelines, dashboards, agents) that remain fast and understandable for users.
• Collaborate with Design to evolve our design system and component library, ensuring consistency, accessibility, and a high‑quality visual language across the product.
• Drive frontend performance improvements (bundle size, rendering strategies, network usage) to keep the app responsive even under large datasets and long‑running workflows.
• Champion accessibility and usability, ensuring the interface works well for time‑pressed engineers in demanding environments.

Fullstack Development & Platform Integration

• Work closely with backend engineers on our Python services to design clean API contracts, shape data models for UI needs, and debug issues across the stack.
• Implement and integrate backend functionality (primarily in Python) when it materially improves UX or unlocks new workflows, including occasional work on API endpoints, background tasks, and data transformations.
• Collaborate with our agent and platform teams to expose agentic capabilities (e.g. platform agent) safely and intuitively in the frontend experience.
• Contribute to fullstack observability — instrumenting both frontend and backend for metrics, logging, and tracing, and using that data to guide product and performance improvements.

Collaboration, Quality & Developer Experience

• Work hand‑in‑hand with Product and Design to scope projects, define success criteria, and break down ambiguous problems into iterative deliverables.
• Maintain a high bar for code quality through thoughtful design, code reviews, tests (unit, integration, and E2E), and documentation.
• Help improve our frontend developer experience — build tooling, workflows, and patterns that make it easier for the team to ship reliable UI quickly (Storybook/design‑system improvements, local dev ergonomics, CI checks, etc.).
• Mentor other engineers on frontend best practices, UX thinking, and effective fullstack collaboration.

Who You Are:

Experience & Level

• Typically 7+ years of professional software engineering experience, including substantial time building and maintaining complex, user‑facing web applications as a fullstack or frontend‑leaning engineer.
• A track record of operating at Senior/Staff scope: owning significant product surface area, driving cross‑team projects, and making architectural decisions that last.

Frontend Expertise

• Advanced proficiency in React and TypeScript, with experience structuring large‑scale frontends (modules, state management, routing, data‑fetching patterns).
• Strong command of web fundamentals
• Experience building data‑heavy and visualization‑centric UIs — e.g. dashboards, charts, time‑series visualizations, experiment or metrics explorers.
• Familiarity with design systems and component libraries (Storybook or similar), and an eye for when design details materially impact user trust and productivity.

Backend & Platform Skills

• Solid experience with Python in production environments (FastAPI, Flask, or Django), including building and integrating REST or GraphQL APIs that power frontend experiences.
• Comfortable working in service‑oriented or microservice architectures, reasoning about data flows, failure modes, and performance across boundaries.
• Experience with SQL databases (e.g. PostgreSQL) and practical data modelling for product features.
• Familiarity with modern cloud and container stacks (Docker, Kubernetes, and at least one major cloud provider).

Quality & Ways of Working

• Strong habits around testing (unit, integration, and E2E) and CI/CD for frontend and backend changes.
• Effective collaborator with Product, Design, and cross‑functional stakeholders; clear written and verbal communicator who can explain trade‑offs and constraints.
• Comfortable working in a fast‑moving, high‑ambiguity environment where we balance shipping quickly with maintaining a reliable platform.

Preferred:

• Experience building UIs for technical or data‑savvy users (ML engineers, data scientists, physical test engineers, or similar), especially in B2B SaaS products.
• Familiarity with GraphQL and typed API clients in React (or strong REST plus a desire to pick up GraphQL quickly).
• Experience with SSR/SSG frameworks, particularly for performance‑sensitive dashboards.
• Prior work with time‑series and experiment tracking tooling, ML platforms, or analytics products.
• Exposure to ML/AI workflows (experiments, training runs, evaluations, agents) and interest in “tools for AI engineers” as a product domain.
• Experience with frontend observability (Sentry, Datadog, OpenTelemetry, etc.) and using telemetry to guide UX improvements.

Wondering if you’re a good fit?

We believe in investing in our people, and value candidates who can bring their own diversified experiences to our teams — even if you aren’t a 100% skill or experience match. Here are a few qualities we’ve found compatible with our team. If some of this describes you, we’d love to talk.

• Product‑minded craftsperson – you care as much about the user experience and clarity of a workflow as you do about the quality of the code behind it.
• Detail‑oriented on complex UX – you enjoy making intricate, data‑heavy interfaces feel simple and intuitive, and you’re willing to sweat the small interactions to get there.
• Pragmatic and velocity‑driven – you know when to build the perfect abstraction and when to ship a well‑engineered, incremental improvement that moves the product forward.
• Collaborative and empathetic – you build strong relationships with engineers, designers, and PMs, and you’re comfortable iterating based on feedback from customers and colleagues.
• Owner’s mindset – you feel responsible for the experience end‑to‑end, follow through on problems across the stack, and care deeply about the impact your work has on customers and the business.

Why CoreWeave?

At CoreWeave, we work hard, have fun, and move fast! We’re in an exciting stage of hyper‑growth that you will not want to miss out on. We’re not afraid of a little chaos, and we’re constantly learning. Our team cares deeply about how we build our product and how we work together, which is represented through our core values:

• Be Curious at Your Core
• Act Like an Owner
• Empower Employees
• Deliver Best‑in‑Class Client Experiences
• Achieve More Together

We support and encourage an entrepreneurial outlook and independent thinking. We foster an environment that encourages collaboration and enables the development of innovative solutions to complex problems. As we get set for takeoff, the organization’s growth opportunities are constantly expanding. You will be surrounded by some of the best talent in the industry, who will want to learn from you, too. Come join us!

Why you should join the SMS International team that is part of Mobile Platforms

The Mobile Platforms team at Klaviyo is responsible for empowering the over 150,000 Ecommerce clients we work with on a global scale to deliver effective experiences on mobile devices. This team focuses on performance optimization and continuous development of our Mobile Marketing Channels (SMS, Push Notifications, In App Messages, WhatsApp and RCS), Mobile SDKs (iOS, Android and React Native). While Email was how Klaviyo began, Mobile messaging is truly the way of the future.

The SMS International team within Mobile Platforms is responsible for the expansion of SMS capabilities into new countries and regions and is also spearheading the development of RCS as a new capability to be offered to customers alongside existing channels. We have an ambitious roadmap for 2026 that puts the team at the heart of the company’s objectives and it is an exciting time to join the team!

About the Role

As a Fullstack Software Engineer II joining the SMS International team you will be working with a team of 5 other colleagues to deliver RCS and SMS International expansion to meet the company’s objectives. You will get the chance to build brand new services, understand how they fit into the bigger picture and plan how to architect and scale them successfully to serve our customers. 

Technologies we use (not exhaustive):

• Python, Django, Go, React, SQS, Celery, MySQL, DynamoDB, Elasticache, Redis
• Amazon Web Services (EC2, RDS, Aurora, etc.), Terraform, Kubernetes, Splunk, Buildkite, Grafana, Chronosphere and other modern DevOps tools

What we are looking for

• 3-5 years of experience in a software engineering discipline
• Experience with full stack application development
• Experience working with both monolithic and microservices architectures
• Experience with database design that can withstand high query volumes
• Experience with CI/CD pipelines
• Experience debugging performance issues and improving application performance
• An interest and aptitude for collaboration across teams and disciplines

Nice to Have

• Experience creating new services with scalability in mind. Exposure to large-scale system design
• Experience with AWS or any similar cloud provider
• Communication domain experience

We use Covey as part of our hiring and / or promotional process. For jobs or candidates in NYC, certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on April 3, 2025.

Please see the independent bias audit report covering our use of Covey here

The Catalog Insights Team’s mission is to arm Klaviyo customers with the data they need to drive sustainable business growth through efficient and effective product placement. Beyond analytical views, this team is also highly focused on actionability: finding creative ways for customers to go from catalog insight to revenue-driving marketing action in a matter of clicks.

As an Engineer on the Catalog Insights team you can expect to be deeply involved in the technical discussions and delivery of the features our customers need. You'll have ownership of projects that contribute to the team's mission, goals, and roadmap. You'll collaborate alongside technical product owners and product managers to build a product and develop a technical strategy to deliver products that make it easy for users to understand their data and performance. Your tech stack will include Python, Typescript, React, AWS, Kubernetes, Django, and Spark. 

How You Will Make A Difference

• Deliver key product capabilities for Catalog Insights to support our recently launched Marketing Analytics product.
• Design and build systems and data pipelines that process large volumes of data to deliver experiences providing value to Klaviyo customers of all sizes
• Work cross functionally with product, design, and data science teams to develop product requirements and technical solutions.
• Own product solutions end-to-end, including technical design, implementation, maintenance, monitoring, and participation in on-call rotations for the services we ship.
• Have ample opportunities for growth. 

Who You Are

• 2+ years experience working in a SaaS product in full stack capacity
• Proficient in at least one modern programming language
• Degree or equivalent experience in a software engineering discipline
• Able to communicate well
• Able to work with others on a team
• Able to learn continuously and adapt to a high growth environment
• Able to stick with and solve difficult problems
• Excited to learn and understand data visualization in addition to full stack engineering

We use Covey as part of our hiring and / or promotional process. For jobs or candidates in NYC, certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on April 3, 2025.

Please see the independent bias audit report covering our use of Covey here

The Team You'll Work With

You’ll enter our engineering interview process as part of a pooled hiring model. We’re excited to meet people who are energized by complex, ambiguous problems. We look for owners and problem-solvers who are eager to dive into the details of their craft, and are motivated by building products and experiences that meaningfully expand access to ownership. 

As you move through our process, we’ll transition from the general pool to a team-matching phase, ensuring that by the final interview, you are aligned with a specific team that matches your strengths and career goals. 

High impact domains you might join include:

• Integrated CRM & ERP Solutions: Defining and delivering our next-generation CRM as part of a fully integrated ERP for private capital. You’ll build deep, greenfield product and data integrations at the heart of the platform, shaping a system that unifies front-office intelligence with financial and operational workflows. You’ll work closely with the founder of the CRM Product that Carta has acquired.
• International Fund Administration: Building and scaling Carta's FA platform for all markets outside the US, adapting the core FA product to fit local standards across Europe, APAC, and beyond. Operating as a lean, high-growth "startup within a startup", you'll work end-to-end with regional FA, sales, and other teams to launch in new markets, iterate quickly toward product-market fit, and own outcomes for this growing business.  

The Problems You'll Solve

As a Senior Software Engineer II, you will lead technically complex projects and serve as a multiplier for your team. You’ll work to:

• Drive Implementation: Lead the execution of complex technical projects, driving them from concept to production while maintaining high standards for performance and reliability.
• Simplify Systems: Dig deep into our architecture to identify opportunities to simplify code and infrastructure, prioritizing changes that have a measurable business impact.
• Leverage Modern Tooling: Use the best AI-assisted engineering tools to accelerate your workflow, improve code quality, and spend more of your time solving the high-level logic and unconventional problems 
• Foster Growth: Act as a mentor and coach, raising the technical bar for your peers through diligent PR reviews and architectural guidance.
• Collaborate Cross-Functionally: Partner with product and design to ensure we are building the right solution for the user, not just following a specification.
  
  

About You

• The Tech Stack: You have experience with (or a desire to learn) our core technologies: Python, Django, React, Postgres, and Kafka. We also utilize Java, gRPC, and AWS. 
• Execution: You can break down complex user stories into actionable tasks and execute them with minimal guidance.
• Strategic Mindset: You understand the "why" behind your code and can articulate technical trade-offs to stakeholders.
• Experience: We recommend 8+ years of professional software engineering experience for this level.

Role:                Senior Full-Stack Developer 
Department:    R&D
Reports into:   Head of Software
Location:         London, Hybrid

ABOUT THE ROLE

Disguise is seeking a Senior Full-Stack Developer to join our growing Cloud Services team — a fast-moving group building the next generation of Disguise Cloud products.

You’ll play a key role in designing and delivering powerful cloud-based tools that integrate tightly with Disguise’s ecosystem, supporting some of the world’s most ambitious live events and immersive experiences.

We’re looking for someone who can hit the ground running — a confident engineer with deep backend experience (Django, Laravel, and/or Rails), strong frontend expertise in Vue, and experience building interactive 3D applications using Three.js.

If you enjoy solving complex problems, building production-grade systems, and collaborating across disciplines, this role is for you.

WHAT YOU WILL DO

• Lead development of a cutting-edge 3D modelling and editing tool built with Three.js, used to simulate and analyze immersive visual experiences for global live events.
• Architect and build scalable APIs and backend services across multiple platforms and technologies.
• Design robust, high-performance database solutions with strong optimisation practices.
• Develop and maintain Vue-based UI controls and components that expose powerful features to end users.
• Collaborate closely with other engineering teams across the organisation to integrate systems and share expertise.
• Conduct thoughtful code reviews and maintain high standards for quality and reliability.
• Support customer-facing teams by troubleshooting issues and responding to internal and external support requests.
• Assist with debugging, performance tuning, and production deployments.
• Break down large features into manageable, well-scoped tasks and drive them to completion.

ABOUT YOU

You’re a senior-level engineer who combines strong technical depth with product curiosity and ownership.

Required Skills & Experience

• Extensive professional software development experience
• Strong expertise with Three.js
• Strong backend expertise in Django and/or Laravel
• Strong frontend expertise in Vue
• Experience in leading product/feature development in a technical team and gathering feature requirements
• Deep understanding of REST APIs (public and private), including OpenAPI specifications and documentation
• Proficiency with Git (branching, pull requests, code reviews)
• Experience using tools like JIRA, GitHub, ProductBoard, or similar
• Excellent written and verbal communication skills (English required; collaboration with UK and Canadian teams)
• Experience integrating AI workflows into daily development practices without compromising engineering standards

How You Work

• You hold yourself, and your teammates, to a high standard when working with production systems.
• You write clean, thoughtful, maintainable code and pay close attention to detail.
• You enjoy solving complex technical problems with curiosity and persistence.
• You’re comfortable navigating ambiguity and multiple moving parts.
• You think beyond implementation, you care about what the product should do and how to make it better.
• You thrive in remote, distributed teams and can work independently while communicating effectively.

Nice to Have

• Experience with distributed systems and containerised deployment, especially in the world of cloud media
• Familiarity with C++ (not required, but helpful for cross-team collaboration)
• Experience in live events, film, production, or entertainment industries
• Tailwind CSS experience and a strong eye for design and UX

The role

This is a high-impact Fullstack Engineer opportunity to build and own a new internal web application that becomes the single go-to place for teams to browse computer vision models, run them on data subsets, and explore results.

You will partner directly with internal users to shape workflows and ship an MVP quickly, then iterate based on real feedback. As the first dedicated Fullstack hire in Corpus & Enrichment, you will set the standard for maintainable, scalable UI engineering that accelerates model development and data labelling workflows across the business.

Key responsibilities:

• Lead discovery with internal stakeholders to define user workflows, UX, and requirements for Enrichment Shop
• Build, ship, and iterate the Enrichment Shop product end-to-end using React/TypeScript and established backend web frameworks
• Integrate the frontend with existing systems and APIs (including Databricks-backed workflows and internal services)
• Incorporate user feedback into delivery planning and help define lightweight expectations/SLAs for an internal tool
• Build for long-term maintainability by writing clear, testable code and enabling others to contribute and support the system

About you  

In order to set you up for success as a Senior Fullstack Engineer at Wayve, we’re looking for the following skills and experience.  

Essential

• Strong JavaScript and TypeScript experience, with React as the preferred frontend direction
• Proven track record delivering a full web application, ideally owning work end-to-end in production
• Experience integrating with existing backend systems and APIs, and working effectively in an established codebase
• Able to operate independently, partnering directly with internal stakeholders and building pragmatic, maintainable, testable solutions

Desirable

• Experience with established web frameworks (for example Next.js or similar)
• Some full-stack exposure, including working close to backend services (Python/Django REST exposure a plus)
• Experience building internal tools and running a tight feedback loop with users, including setting lightweight expectations/SLAs

This is a full-time role based in our office in London.  At Wayve we want the best of all worlds so we operate a hybrid working policy that combines time together in our offices and workshops to fuel innovation, culture, relationships and learning, and time spent working from home.   

Team

As an engineering team, we believe strongly that empathy improves our solutions. Seeing how people use the product is a priority and the way we get to the right answer. Engineers will have the opportunity to work closely with our team onsite to understand the variety of use cases that Peregrine serves.

The Foundations team consists of detail-oriented engineers driving innovation and enhancing performance through technical excellence and a focus on results. We own the performance of Peregrine's mission-critical infrastructure as well as the high-risk, platform-spanning initiatives that create unmatched new capabilities.

We value both ownership and collaboration—you will take full responsibility for major features and work closely with other engineers to drive them to completion. We believe that humility and empathy are essential for building the right solutions—you will collaborate directly with our deployment team and users as we iterate to solve their problems. Perseverance and creativity are crucial to executing our vision.

Role

As the first Software Engineer in the UK, you'll have vast ownership across our stack, making decisions that will have an outsized impact for years to come.

You'll push the boundaries of what a data platform can do by creating novel capabilities that span the platform and optimizing subsystems to achieve order-of-magnitude improvements in performance. You will work on projects such as re-architecting our Elasticsearch cluster, taking response times from seconds to milliseconds; and owning other strategic initiatives that deliver industry-leading platform performance and capabilities.

Our stack is constantly evolving but based on a backend foundation of Python, Django, Celery, Airflow, and Kafka; a frontend built in React, Redux, and Mapbox; data stores including PostgreSQL and Elasticsearch; machine learning models hosted in Bedrock and Sagemaker; and with AWS, Pulumi, Terraform, and Kubernetes as our underlying infrastructure.

About you

• Desire and drive to own large portions of the application from start to finish
• Passion for crafting and shipping software solutions that delight users
• Thrive on ambiguity and love taking on hard problems
• Excellent technical vision with the ability to synthesize product requests into strong and reliable software components

What we look for

• Degree in Computer Science or a related field, or equivalent experience
• 8+ years of experience working with cross-functional software development teams
• Experience shipping and iterating on production-grade software components professionally and/or in the open-source community
• Ability to write robust, well-tested, and well-designed code that frequently gets deployed to users
• Strong understanding of product development and navigating large codebases

Salary Range: £110,000 - £186,000 Annually + Benefits + Equity (if applicable) + Bonus (if applicable)

Actual compensation is influenced by a wide array of factors including but not limited to skill set, level of experience, certifications or licenses, and specific work location. Information on the benefits offered is here.

Why You Should Join the Internationalisation Platform Team

The i18n Platform team owns all the ways we create, process and deliver internationalisation features for our users at Klaviyo.  As a Senior Software Engineer, you will be a key contributor and mentor leading complex, multi-component projects across the i18n platform. You will be involved in how we manage translations, deliver new localisation features, handle multiple currencies, and improve our internationalisation processes.

You can look forward to being a part of a highly technical team with significant domain expertise. We oversee tools and services that are leveraged across the organization from the frontend UI to backend data.  The team also owns and orchestrates several services to manage the pipeline of translations with our localisation team.

As we look toward the next 6-12 months, we aim to focus on delivering LLM workflows to improve our translation capabilities, increase the availability of our Smart Translations product, and develop new features for handling different currencies in multiple regions.

Why you should join

We foster a culture of psychological safety, collaboration, and work/life balance through flexible hours and structured on-call rotations.

We practice a “you make it, you support it” attitude to our products and provide on-call support in case of incidents.  We offer compensation for on-call rotations and expect to maintain a very low number of incidents requiring call-out.  New engineers are onboarded to the on-call rotation gradually, typically joining the active rotation after their first 6 months and thorough training.
We are committed to your growth. You will be paired with a dedicated mentor and given time for focused skill development, including opportunities to attend relevant industry conferences and a growing suite of learning & development opportunities.

We enjoy a high degree of autonomy to generate innovative solutions across the entire system, learning directly from customers and suggesting cool new approaches.

Free lunch at our Aldgate office three times a week
Highly competitive salary, equity package, and comprehensive health benefits.

How You Will Make a Difference

• You will lead and drive the design and execution of complex, business-critical projects across the Internationalisation platform.
• You will be responsible for implementing new functionality and establishing design patterns for complex, multi-component systems.
• You will take full lifecycle ownership of features and projects, driving requirement refinement and setting the pace for all phases of execution.
• You will proactively collaborate with cross-functional partners to influence product requirements and communicate technical needs to other teams.
• You will be an active participant in all team processes and accountable for meeting the health and operational excellence (SLOs) of your area of ownership.
• You will help interview new engineering team members and actively mentor junior engineers in your product area.

What we are looking for

• A strong interest in internationalisation, localisation, and translation.
• A desire to serve our international customers and expand Klaviyo’s capabilities.
• 5+ years of demonstrable experience delivering high-quality, customer-facing software.
• Deep understanding of complex systems (or similar large-scale distributed systems) and strong systems thinking, with a proven ability to scale, observe, and maintain services.
• Familiarity with full stack development concepts and a strong aptitude to learn.
• Experience working with both monolithic and microservices architectures
• Experience with database design that can withstand high query volumes
• Experience debugging performance issues and improving application performance
• An interest and aptitude for collaboration across teams and disciplines
• An understanding of challenges in developing software across multiple languages and catering to non-English speaking users
• Thrives in a fast paced, customer focused, and strategic environment.
• A track record of prioritizing the needs and success of the company overall above the immediate needs of the team.

Nice to Have

• Proven experience with large-scale system design and driving the technical/architectural evolution of a product area.
• Experience with AWS or any similar cloud provider
• Experience with billing systems in multiple currencies

Technologies we use (not exhaustive):

• React, TypeScript, JavaScript, HTML, CSS
• Babel, Webpack, Eslint, Prettier
• REST, GraphQL, JSON Schema, JSON:API
• CDNs (Fastly, Cloudflare)
• GitHub, BuildKite
• MySQL, Redis, Pulsar, Memcache
• Python, Django, FastAPI, Go, Gin, React, RabbitMQ, Celery, MySQL, DynamoDB, Cassandra, Redis
• DeepL, Smartling, Stripe
• Amazon Web Services (EC2, RDS, Aurora, AWS Translate, etc.), Terraform, Kubernetes, Splunk, Chronosphere, Cortex, DX, and other modern DevOps tools
• Bedrock, Claude, Cursor, LangChain, OpenAI, Gemini,

We use Covey as part of our hiring and / or promotional process. For jobs or candidates in NYC, certain features may qualify it as an AEDT. As part of the evaluation process we provide Covey with job requirements and candidate submitted applications. We began using Covey Scout for Inbound on April 3, 2025.

Please see the independent bias audit report covering our use of Covey here

Senior Full-Stack Engineer - AI Agent Platform

London Victoria Office - Hybrid: 4 days in the office, 1 day working from home

Mid-Full-Stack Engineer - AI Agent Platform

London Victoria Office - Hybrid: 4 days in the office, 1 day working from home

Senior Software Engineer (Money Flows)

Ebury Madrid or Malaga Office - Hybrid: 4 days in the office, 1 day working from home

The Engineering team at Ebury is seeking a Senior Software Engineer to play a crucial part in our team. As part of our diverse team spread across South America and Europe, the successful candidate will be entrusted with the development and optimisation of our multi-currency account systems, incoming funds, and outgoing payment processes. You'll be required to make significant contributions to our platform as we continually aim to bring it to the next level and deliver the best payment experience for our clients and operational teams.

As a Senior Software Engineer in our team, your technical knowledge and skills will be paramount to our innovation and growth. We value collaboration and commitment, operating within a distributed setup where effective working is key.

What we offer:

● Competitive salary and benefits package
● Discretionary bonus based on performance
● Being part of a dynamic environment, with global exposure
● Continued personal development through training and certification

Responsibilities:

● Contribute to the development of the next iteration of our platform, designed to streamline cross-border payments and the international collection of funds.
● Collaborate with your colleagues and engineering leaders to design new services and components.
● Coach and mentor less experienced team members, positively changing the trajectory of the team to increase the overall effectiveness and efficiency.
● Lead product initiatives from analysis to delivery, working closely with the product and operational teams to ensure everyone is on the same page.

About you:
● You have extensive experience in developing complex software systems.
● Experience with Python, Django, FastAPI, PostgreSQL, Kafka, AWS, Kubernetes, Prometheus, Kibana.
● Since you will work side by side with colleagues from different countries, you will be able to communicate clearly and concisely your ideas in English, both written and spoken.
● As we work closely with Product members, you should be able to collaborate with stakeholders to gather and clarify requirements, ensuring that technical solutions align with business objectives and user needs.
● You are adept at both constructing and managing services. As such, you should have proficiency in establishing standard APIs, incorporating monitoring systems and alerting services, along with a strong expertise in integrating external systems.
● Quality is important to us, we expect your code to be testable and well covered with unit and integration tests. We use CI Jenkins pipelines and terraform for the deployment of services and infrastructure. From time to time, you might need to contribute to it.
● In line with our 'You build it, you own it' philosophy, we expect you to take full ownership of the products you build, embracing both their development and ongoing maintenance.

If you’re excited about this job opportunity but your background doesn’t match exactly the requirements in the job description, we strongly encourage you to apply anyway. You may be just the right candidate for this or other positions we have.

#LI-JB1

Senior Software Engineer (Money Flows)

Ebury London Office - Hybrid: 4 days in the office, 1 day working from home

The Engineering team at Ebury is seeking a Senior Software Engineer to play a crucial part in our team. As part of our diverse team spread across South America and Europe, the successful candidate will be entrusted with the development and optimisation of our multi-currency account systems, incoming funds, and outgoing payment processes. You'll be required to make significant contributions to our platform as we continually aim to bring it to the next level and deliver the best payment experience for our clients and operational teams.

As a Senior Software Engineer in our team, your technical knowledge and skills will be paramount to our innovation and growth. We value collaboration and commitment, operating within a distributed setup where effective working is key.

What we offer:

● Competitive salary and benefits package
● Discretionary bonus based on performance
● Being part of a dynamic environment, with global exposure
● Continued personal development through training and certification

Responsibilities:

● Contribute to the development of the next iteration of our platform, designed to streamline cross-border payments and the international collection of funds.
● Collaborate with your colleagues and engineering leaders to design new services and components.
● Coach and mentor less experienced team members, positively changing the trajectory of the team to increase the overall effectiveness and efficiency.
● Lead product initiatives from analysis to delivery, working closely with the product and operational teams to ensure everyone is on the same page.

About you:
● You have extensive experience in developing complex software systems.
● Experience with Python, Django, FastAPI, PostgreSQL, Kafka, AWS, Kubernetes, Prometheus, Kibana.
● Since you will work side by side with colleagues from different countries, you will be able to communicate clearly and concisely your ideas in English, both written and spoken.
● As we work closely with Product members, you should be able to collaborate with stakeholders to gather and clarify requirements, ensuring that technical solutions align with business objectives and user needs.
● You are adept at both constructing and managing services. As such, you should have proficiency in establishing standard APIs, incorporating monitoring systems and alerting services, along with a strong expertise in integrating external systems.
● Quality is important to us, we expect your code to be testable and well covered with unit and integration tests. We use CI Jenkins pipelines and terraform for the deployment of services and infrastructure. From time to time, you might need to contribute to it.
● In line with our 'You build it, you own it' philosophy, we expect you to take full ownership of the products you build, embracing both their development and ongoing maintenance.

If you’re excited about this job opportunity but your background doesn’t match exactly the requirements in the job description, we strongly encourage you to apply anyway. You may be just the right candidate for this or other positions we have.

#LI-JB1

Senior Software Engineer (Money Flows)

Ebury Madrid or Malaga Office - Hybrid: 4 days in the office, 1 day working from home

The Engineering team at Ebury is seeking a Senior Software Engineer to play a crucial part in our team. As part of our diverse team spread across South America and Europe, the successful candidate will be entrusted with the development and optimisation of our multi-currency account systems, incoming funds, and outgoing payment processes. You'll be required to make significant contributions to our platform as we continually aim to bring it to the next level and deliver the best payment experience for our clients and operational teams.

As a Senior Software Engineer in our team, your technical knowledge and skills will be paramount to our innovation and growth. We value collaboration and commitment, operating within a distributed setup where effective working is key.

What we offer:

● Competitive salary and benefits package
● Discretionary bonus based on performance
● Being part of a dynamic environment, with global exposure
● Continued personal development through training and certification

Responsibilities:

● Contribute to the development of the next iteration of our platform, designed to streamline cross-border payments and the international collection of funds.
● Collaborate with your colleagues and engineering leaders to design new services and components.
● Coach and mentor less experienced team members, positively changing the trajectory of the team to increase the overall effectiveness and efficiency.
● Lead product initiatives from analysis to delivery, working closely with the product and operational teams to ensure everyone is on the same page.

About you:
● You have extensive experience in developing complex software systems.
● Experience with Python, Django, FastAPI, PostgreSQL, Kafka, AWS, Kubernetes, Prometheus, Kibana.
● Since you will work side by side with colleagues from different countries, you will be able to communicate clearly and concisely your ideas in English, both written and spoken.
● As we work closely with Product members, you should be able to collaborate with stakeholders to gather and clarify requirements, ensuring that technical solutions align with business objectives and user needs.
● You are adept at both constructing and managing services. As such, you should have proficiency in establishing standard APIs, incorporating monitoring systems and alerting services, along with a strong expertise in integrating external systems.
● Quality is important to us, we expect your code to be testable and well covered with unit and integration tests. We use CI Jenkins pipelines and terraform for the deployment of services and infrastructure. From time to time, you might need to contribute to it.
● In line with our 'You build it, you own it' philosophy, we expect you to take full ownership of the products you build, embracing both their development and ongoing maintenance.

If you’re excited about this job opportunity but your background doesn’t match exactly the requirements in the job description, we strongly encourage you to apply anyway. You may be just the right candidate for this or other positions we have.

Feel free to connect with me on LinkedIn - Freddie Mugridge

#LI-JB1

The Team You'll Work With

You’ll enter our engineering interview process as part of a pooled hiring model. We believe in hiring for Carta first, focusing on your core strengths and technical craft rather than a specific team’s immediate gap. 

Staff Engineers at Carta are technical anchors for our business. You don’t just own features, you take long-term accountability for the technical health and strategic direction of different domains. As you move through our process, we’ll transition from the general pool to a team-matching phase. Our goal is to match your unique technical strengths, and personal career interests with our most impactful, strategic challenges. 

Strategic areas you may influence include:

• Integrated CRM & ERP Solutions: Defining and delivering our next-generation CRM as part of a fully integrated ERP for private capital. You’ll build deep, greenfield product and data integrations at the heart of the platform, shaping a system that unifies front-office intelligence with financial and operational workflows. You’ll work closely with the founder of the CRM Product that Carta has acquired and you will influence the product roadmap through your technical leadership.
• AI-Driven Data Ingestion, Processing and Analytics: Accelerating the modernization of private capital markets by integrating advanced AI-powered data ingestion, extraction and analytics. You will help build AI agents that automate document ingestion into data processing pipelines, making portfolio information more accessible, accurate, and actionable for investors and fund managers across our unified platform.
• Engineering Excellence: Defining company-wide standards that reduce operational load and improve developer velocity across dozens of teams.

The Problems You'll Solve

As a Staff Engineer, you are responsible for the long-term technical health and success of your business unit. You’ll work to:

• Navigate Ambiguity: Tackle the most complex and poorly defined problems at Carta, breaking them down into navigable paths for the rest of the organization.
• Champion Systemic Improvement: Identify and eliminate failure patterns across multiple systems, driving architectural changes that improve scalability and reliability.
• Bridge Technical Gaps: Use your deep understanding of cross-functional domains to align multiple teams on major technical decisions.
• Define the AI Frontier: Lead the charge in transforming how we build by defining the context and building the rails that allow every person at Carta to leverage AI tools safely and effectively. You’ll help move the organization toward a future where AI amplifies our collective engineering impact.
• Uphold Engineering Standards: Set the vision for operational excellence and mentor senior engineers to raise the collective craft of the organization.
  
  

About You

• The Tech Stack: You are an expert in building distributed systems. While our primary stack is Python/Django, React, and Postgres, you should be comfortable guiding technical direction across JVM languages, gRPC, and cloud-native infrastructure (AWS). 
• Leadership: You lead through influence rather than authority, acting as a role model for constructive communication and technical discipline.
• Vision: You don't just solve the problem in front of you; you anticipate future roadblocks and build systems that support long-term business growth.
• Experience: We recommend 10+ years of professional software engineering experience with a track record of high-level technical leadership.

About the role: 

This is an opportunity to work on a wide range of different challenges across multiple teams with the opportunity to learn in many different business domains. The work in this role will directly benefit many different stakeholders across the business. contributing to strategic business objectives as well as improvements to our stack. You will be collaborating with cross-functional teams to understand project requirements and contribute to the overall system design, working closely with developers and business stakeholders in this exciting position.

Technologies in common use include: Django + DRF + Celery, Python 3.11, AWS EKS for Kubernetes, Amazon Aurora PostgreSQL, Amazon ElastiCache for Redis and Amazon MSK for Kafka.

Duties and Responsibilities:

• Develop and maintain efficient Python-based applications and components, ensuring high-quality code and adherence to coding standards
• Maintain and enhance in-house Python shared libraries, ensuring their reliability and effectiveness
• Write robust, maintainable, thoroughly-tested and well-documented code to meet project goals and deadlines
• Troubleshoot and resolve software defects and technical issues to minimize disruption in revenue-generating processes
• Collaborate with cross-functional teams to define and implement new features
• Participate in code reviews and incorporate feedback
• Maintain and enforce good quality internal documentation

Required Skills and experience:

• 1 years of software development in Python
• Knowledge of relational databases and SQL
• Understanding of web technologies and protocols (e.g. HTTP, WebSocket)
• Clean and efficient coding style
• Comfortable writing automated tests for own code
• Experience with Django+DRF or another commonly used Python web framework
• Experience with Celery, PostgreSQL, Kafka, Redis or gRPC
• Some experience with Linux, Docker, Kubernetes and/or AWS
• Interest in crypto and/or trading
• ReactJS experience / front end

What we offer:

• An amazing global culture, who are ambitious, innovative and fun while working with the highest levels of honesty and integrity.
• Two discretionary bonus awards a year.
• A range of benefits in line with local market practice.
• Regular fun events and activities, as well as Social Impact volunteering days.

The Company

We’re Octopus Legacy: one of the fastest-growing tech companies in the country, and part of the UK’s most exciting and best-trusted group. We have a mission.

We’re on a path to scale - aiming to become a household name while transforming a long-established industry and helping individuals and organisations prepare for, and find support after, death.

But we can’t do it alone. That’s why we’re building a team of self-starters, problem-solvers and people who bring energy to everything they do.

Ready to be part of something big?

The Role

We're looking for a Software Engineer skilled in PHP and familiar with Python, ready to make a real impact. You’ll split your time between maintaining and improving our existing PHP/Laravel codebases - powering products like our website, Life Insurance offering, and internal tools - and contributing to newer Python-based projects as our tech stack evolves.

You’ll code across the full stack, shipping real improvements that users notice, keeping our platforms healthy, secure, and performant. You’ll own the backlog of impactful changes that elevate our products and delight users, while also growing into Python projects and expanding your skillset.

This is a role full of variety and opportunity - every week brings new challenges, and your work will directly impact our customers.

Key Responsibilities

• Maintain and improve existing PHP/Laravel applications - bug fixes, enhancements, performance improvements, and application-level security.
• Build and contribute to Python projects - new services, internal tooling, and integrations as our tech stack evolves.
• Support platform security and compliance initiatives - pen testing remediation, dependency updates, and infrastructure hardening.
• Troubleshoot and resolve production issues - investigate bugs, diagnose root causes, and ship fixes confidently.
• Collaborate with the wider engineering team - participate in code reviews, sprint ceremonies, and contribute to engineering standards and best practices.
• Own small-to-medium projects end-to-end, delivering meaningful improvements across our tools and products.

Who Are You?

• Strong experience with PHP, ideally within the Laravel framework.
• Comfortable working with Python - whether in scripting, APIs, data processing, or frameworks like Django or FastAPI.
• Solid understanding of relational databases (PostgreSQL) and writing efficient queries.
• Experienced with version control (Git) and collaborative development workflows.
• Able to work independently, prioritise effectively, and ship reliably.
• Clear communicator who can explain technical decisions to non-technical stakeholder

Bonus points

• Understanding of event-driven architectures and messaging systems.
• Experience with front-end technologies (JavaScript/TypeScript, Vue or React).
• Familiarity with CI/CD pipelines, automated testing, and deployment processes.
• Interest in or experience with AI/LLM integration.

Why You’ll Love It Here

• This role is a stepping stone into Python development, giving you the chance to expand your skills in modern frameworks and integrations, and to apply AI and LLMs for real-world impact.
• You’ll have significant ownership - your work will directly impact our products, customers, and internal operations.
• We’re a growing, collaborative team - you’ll learn from experienced engineers, shape engineering practices, and contribute to the evolution of our tech stack.
• Every day you’ll be building meaningful products that make a difference.

Our Mission

Octopus Legacy is the place to plan for death and find support after loss. When people think about planning for death they think about wills, life insurance and funerals. We take these cold processes and turn them into something more human. Share more than money: leave voice notes, music, recipes. Shape a legacy that connects you while you're here. And after you're gone.

Founded by Sam after his mum died suddenly, we’re a group of people who work in death because we’ve been affected by it. We know the difference a good plan makes, and what it’s like when there isn’t one.

Death can come between us, leaving mess, legal fees, frustration. But it can also make us stronger. We see a world where people talk openly about death, and work out the real meaning of legacy, one that connects to them. We’re here to make that world happen. 

Benefits

• Octopus share incentive scheme
• 27 days holiday + extra day off for your Birthday
• Work from anywhere in the world for up to 4 weeks per year
• Vitality Health & Life Insurance
• Pension scheme
• Enhanced parental leave
• Free Will & LPAs + discounts on other Octopus services
• Cycle to Work Scheme and EV Salary Sacrifice Scheme
• Octopus Giving: matched charitable fundraising up to £500
• Octopus Springboard: support to build your own ideas
• Dog-friendly office
• Breakfast every day, snacks and wellness activities

We know that to be truly innovative, we need to have a diverse team around us. That is why Octopus Legacy is committed to creating an inclusive environment and is proud to be an equal opportunity employer.