Fullstack engineer Bitcoin mining fleet platform

Braiins Systems builds software for Bitcoin mining hardware, including Braiins OS+, Braiins Pool, Braiins Manager, a cloud platform for remote fleet management, and desktop tooling.

• Own features across the full lifecycle, from architecture and design through implementation on both sides of the wire to production troubleshooting
• Develop the platform, including its API, dashboard, desktop frontend, Rust daemon, and Kubernetes infrastructure
• Design agents and tools, build MCP integrations and retrieval over domain data, and develop context engineering and evaluations for the internal agent platform
• Help determine where AI belongs in the product

• Strong Type Script skills across Node.js and a modern SPA framework such as Angular, React, or Vue, with depth on one side and competence on the other
• Experience with PostgreSQL, relational modeling, migrations, and SQL beyond ORM use
• Hands-on experience shipping with LLMs, including a credible subset of tool or function calling, MCP, retrieval, agent orchestration, and evaluations; alternatively, experience pushing coding agents on real codebases and understanding their limitations
• Experience with Git, Docker, and CI
• Understanding of asynchronous distributed systems, including queues, at-least-once delivery, idempotent handlers, retries, back pressure, microservice architecture, observability stacks, and time-series or telemetry data at scale
• Understanding of REST, gRPC, and their underlying technologies
• Ability to write and select unit and integration tests
• Strong debugging skills, including reading stack traces, slow query plans, and metrics dashboards
• Solid understanding of algorithms and data structures
• Communicative English and the self-direction needed for a remote team
• Будет плюсом:
  Kubernetes, Rust or experience with C, C++, or Go, Python, frontend design systems, accessibility, bundle and rendering performance, interest in Bitcoin or active cryptocurrency experience

• Full-time position with flexible working hours; employee or freelance
• Indefinite contract
• Employees receive 5 weeks of vacation and 3 sick days
• Modern offices are available in central Prague, with a relaxation room, shower, and parking
• Company events and occasional Braiins brunches
• Generous budget for AI tooling and freedom to use it
• Long-term work on products used daily by industrial-scale mining operations