Fullstack Engineer — Fintech Platform (Node/TS)

Kraken; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Kraken is seeking a skilled fullstack/backend engineer to build scalable custody, staking, and wallet services. You will work across backend and frontend layers, driving API design, data models, and distributed architectures in a high-availability environment.

You will mentor teammates and own services from RFCs to deployment, partnering with product managers and DevOps to ensure performance and reliability across complex systems.

Qualifications

• 3+ 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, including React Query and Context API.

Responsibilities

• Collaborate with product managers, architects, and DevOps to design and deliver secure, scalable custody solutions.
• Build and maintain backend microservices in TypeScript and Node.js for custody, staking, and wallet services.
• Integrate blockchain networks and external systems to support asset movements and key management workflows.
• Contribute to React and Next.js frontend applications, ensuring operational visibility and a seamless user experience.
• Develop event-driven systems using Kafka for real-time data processing and inter-service communication.
• Write reusable, testable code that meets performance and observability standards.
• Collaborate across teams to design and optimize data models, APIs, and distributed architectures.
• Participate in technical reviews, mentor other engineers, and own services across their lifecycle.

Skills

Node.js

TypeScript

NestJS

Microservices

Event-driven

RESTful APIs

SQL databases

React

React Query

Next.js

Tailwind CSS

Docker

CI/CD

Prometheus

Splunk

Kafka

Tools

Docker

Prometheus

Splunk

Kafka

PostgreSQL

NestJS

Next.js

Job description

Kraken is seeking a skilled fullstack/backend engineer to build scalable custody, staking, and wallet services. You will work across backend and frontend layers, driving API design, data models, and distributed architectures in a high-availability environment.

You will mentor teammates and own services from RFCs to deployment, partnering with product managers and DevOps to ensure performance and reliability across complex systems.