Fullstack Engineer / AI Engineer for BRAIINS MANAGER

The role

You will own features across the full lifecycle including architecture, design, implementation, and production troubleshooting. You will work on a NestJS/TypeScript API, an Angular dashboard, a React desktop frontend, and an internal agent platform involving agent and tool design, MCP integrations, and retrieval.

What you will do

• Own features across the full lifecycle including architecture and design
• Implement features on both sides of the wire
• Troubleshoot features in production
• Work on agent and tool design
• Work on MCP integrations
• Work on context engineering
• Work on retrieval over domain data
• Work on evals to prevent silent degradation

Required qualifications

• Strong TypeScript on both server (Node.js, NestJS or equivalent) and modern SPA framework (Angular, React, Vue)
• SQL including PostgreSQL, relational modeling, and migrations
• Hands-on experience shipping with LLMs including tool/function calling, MCP, retrieval, agent orchestration, or evals
• Git, Docker, and CI
• Comfort with asynchronous, distributed systems including queues, microservice architecture, and observability stacks
• REST and gRPC
• Unit and integration testing
• Debugging skills including reading stack traces, slow query plans, and metrics dashboards
• Solid grasp of algorithms and data structures
• English at a communicative level
• Self-direction for a remote team
• Located in Prague area

Nice to have

• Kubernetes
• Rust
• Python
• Frontend craft: design systems, accessibility, bundle and rendering performance
• An interest in Bitcoin or active experience with cryptocurrencies

Benefits

• Flexible working hours
• Employee or freelance options
• 5 weeks of vacation
• 3 sick days
• Company events
• Braiins brunch
• Generous budget for AI tooling

About the company

Braiins builds software that runs a meaningful share of the world's Bitcoin mining hardware, including Braiins OS+, Braiins Pool, and Braiins Manager.