Fullstack Engineer - Custody

Fullstack Engineer - Custody at Kraken

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.

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.

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.

Before you apply, please read the Kraken Culture page to learn more about our internal culture, values, and mission. We also expect candidates to familiarize themselves with the Kraken app. Learn how to create a Kraken account here.

Join the Institutional Engineering Team, a core group responsible for building secure, high‑performance systems that safeguard digital assets for institutional and enterprise clients. We design and deliver the next generation of crypto custody and settlement services, ensuring trust, transparency, and resilience at every layer of our platform.

Our engineers are a globally distributed, mission‑driven group focused on creating new, scalable services that form the backbone of our custody infrastructure — from key management and wallet orchestration to transaction pipelines and compliance systems.

We combine deep backend expertise with a strong focus on security, reliability, and performance. The team thrives in a collaborative, transparent, and Dev Ops‑oriented environment, where technical excellence and innovation come together to redefine how digital assets are protected and managed.

If you’re passionate about secure system design, distributed architectures, and building solutions that truly matter in the crypto ecosystem, this is where you’ll make your impact.

• Collaborate with product managers, architects, and Dev Ops engineers to design and deliver secure, scalable, and high‑performance custody solutions.
• Build and maintain new backend microservices in Type Script, 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.

• 5+ years of professional experience in fullstack or backend engineering within high‑scale, high‑availability systems.
• Expert‑level proficiency in Node.js and Type Script, 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…