[Full Remote] Fullstack Engineer - Custody

Kraken; Australia; Remote; AUD 120,000 - 180,000; Full time

Job summary

Kraken is recruiting senior backend/fullstack engineers to build scalable custody and settlement services for institutional clients. You will design and implement secure, high-performance microservices, integrate with blockchain networks, and contribute to React/Next.js frontend work for operator visibility and reliability.

You will join a distributed, DevOps-oriented team that values technical excellence, collaboration, and innovation in a fully remote environment.

Qualifications

• 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.

Responsibilities

• 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

Node.js

TypeScript

NestJS

Microservices

REST APIs

SQL Databases

React

React Query

Next.js

Tailwind CSS

Docker

CI/CD

Observability

Prometheus

Splunk

Collaboration

Tools

Kafka

gRPC

Protocol Buffers

Rust

Job description

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. 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. 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. Become a Krakenite and build the future of crypto!

Proof of work

The team

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 DevOps-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.

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.

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