Fullstack Engineer - Custody
Kraken
- London, England, United Kingdom
- London, England, United Kingdom
Über
Fullstack Engineer - Custody
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.
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.
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 its products like Kraken Pro, Desktop, Wallet, and Kraken Futures.
The opportunity
Collaborate with product managers, architects, and DevOps engineers to design and deliver secure, scalable, and high‑performance custody solutions.
Build and maintain new backend microservices in TypeScript, Node.js, powering custody, staking, and wallet services.
Integrate with blockchain networks and external systems to support asset movements, transactions, and key management workflows.
Contribute to frontend applications built with React and Next.js, ensuring clear operational visibility and seamless user experience.
Develop event‑driven systems using Kafka for real‑time data processing and inter‑service communication.
Write reusable, testable, and efficient code, maintaining high standards for performance, observability, and fault tolerance.
Collaborate across teams to design and optimize data models, APIs, and distributed architectures.
Participate in technical reviews, mentor other engineers, and take ownership of services throughout their full lifecycle — from RFCs and design to deployment and maintenance.
Skills You Should HODL
5+ years of professional experience in fullstack or backend engineering within high‑scale, high‑availability systems.
Expert‑level proficiency in Node.js and TypeScript, with hands‑on experience using NestJS or similar frameworks.
Deep understanding of microservices, event‑driven architectures, and CQRS/DDD design patterns.
Proven ability to design and deliver RESTful APIs and asynchronous event‑based communication systems.
Strong experience with SQL databases and schema design for performance and reliability.
Solid understanding of React and modern frontend best practices.
Deep knowledge of state management (React Query, Context API, custom hooks).
Experience with Next.js, Tailwind CSS, and component‑driven architecture.
Hands‑on experience with Docker, CI/CD, and observability tools such as Prometheus and Splunk.
Excellent collaboration and communication skills — capable of working effectively in distributed, cross‑functional teams.
Nice to haves
Understanding of crypto protocols, staking mechanisms, and the broader blockchain technology ecosystem.
Experience with gRPC, Protocol Buffers.
Hands‑on experience with Rust.
Background in financial systems, digital assets, and experience in custodial or other regulated 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 knowledgable 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.
Seniority level Mid‑Senior level
Employment type Full‑time
Job function Engineering and Information Technology
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Sprachkenntnisse
- English
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