Senior Software Engineer - Backend - Growth Platform in London

Join to apply for the Senior Software Engineer - Backend - Growth Platform role at Kraken. Building the Future of Crypto, our Krakenites are a world-class team with crypto conviction, united by our desire to discover and unlock the potential of crypto and blockchain technology.

What makes us different? Kraken is a mission-focused company rooted in crypto values. As a Krakenite, you’ll join us on our mission to accelerate the global adoption of crypto, so that everyone can achieve financial freedom and inclusion. For over a decade, Kraken’s focus on our mission and crypto ethos has attracted many of the most talented crypto experts in the world.

Our People: As a fully remote company, we have Krakenites in 70+ countries who speak over 50 languages. Krakenites are industry pioneers who develop premium crypto products for experienced traders, institutions, and newcomers to the space. Kraken is committed to industry-leading security, crypto education, and world-class client support through our products like Kraken Pro, Desktop, Wallet, and Kraken Futures.

The Growth Engineering Team builds the experiences that connect people to our ecosystem for the first time — and keeps them coming back. We design and ship the systems behind our marketing funnels, signup and KYC flows, and the key engagement features that help new users fund their accounts and explore our products. It’s a team with direct influence on company growth, global reach, and user engagement at scale. Our products serve millions of users globally.

How We Work: We give engineers ownership and trust them to ship high-impact work with craftsmanship and accountability. We move quickly, experiment often, and learn fast from data and feedback. We work asynchronously across time zones, supporting each other with open communication and shared goals.

Why This Role Matters: You’ll help define the foundation on which Growth Engineering — and the company — build. Your tools and systems will accelerate development across multiple teams, ensuring reliability and scalability for products that serve millions globally. If you’re passionate about creating elegant, powerful developer experiences and using engineering craft to drive real business impact, you’ll thrive here.

The Opportunity: As a Senior Software Engineer within the Growth Platform team, you’ll design and maintain the internal tooling, services, and developer platforms that empower teams across Growth — and beyond — to move faster and ship more reliably. You’ll build SDKs, CLIs, APIs, and backend systems that make it easy for engineers to integrate growth features and infrastructure safely, consistently, and at scale.

• Architect, build, and maintain SDKs, CLIs, APIs, and shared services that enable rapid experimentation and delivery across Growth engineering teams.
• Develop internal tools and frameworks that improve engineering workflows, automation, and deployment efficiency.
• Design and evolve scalable backend systems and databases, ensuring performance, security, and resilience.
• Write clear, maintainable technical documentation and onboarding materials for engineers using platform tools.
• Partner with other engineers to understand pain points and translate them into intuitive, reliable internal systems.
• Own reliability, observability, and performance improvements across core services.
• Collaborate with infrastructure and platform teams across the company to align on standards, tooling, and best practices.
• Mentor engineers and advocate for engineering excellence, automation, and maintainability.

Skills You Should HODL:

• 5+ years of software engineering experience, including building and maintaining backend systems or developer-facing tools.
• Proficiency in building scalable applications and developer tooling using one of the following: TypeScript, Rust, Go, Python, or Ruby.
• Experience designing and maintaining APIs, SDKs, or internal services consumed by other engineering teams.
• Understanding of distributed systems, scalability, reliability, and secure software design.
• Experience with infrastructure and tooling such as Docker, Kubernetes, Terraform, MySQL/MariaDB, Redis, or GitLab CI/CD.
• Strong communication and documentation skills — you can make complex systems approachable to other developers.

Nice to have:

• Familiarity with React or React Native, especially when building front-end SDKs or shared components.
• Ability to operate autonomously in a globally distributed, remote-first environment.

Nice to haves:

• Experience building internal developer platforms or frameworks used across multiple teams.
• Background in observability, reliability engineering, or service instrumentation.
• Experience driving technical design across large codebases or multi-team environments.

This job is accepting ongoing applications and there is no application deadline. Please note, applicants are permitted to redact or remove information on their resume that identifies age, date of birth, or dates of attendance at or graduation from an educational institution. We consider qualified applicants with criminal histories for employment on our team, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance.

Kraken is powered by people from around the world and we celebrate all Krakenites for their diverse talents, backgrounds, contributions and unique perspectives. We hire strictly based on merit, meaning we seek out the candidates with the right abilities, knowledge, and skills considered the most suitable for the job. We encourage you to apply for roles where you don't fully meet the listed requirements, especially if you're passionate or knowledgeable about crypto!

As an equal opportunity employer, we don’t tolerate discrimination or harassment of any kind. Whether that’s based on race, ethnicity, age, gender identity, citizenship, religion, sexual orientation, disability, pregnancy, veteran status or any other protected characteristic as outlined by federal, state or local laws.