Fullstack Engineer / AI Engineer for Braiins Manager

About the role

Braiins is looking for a full‑stack engineer who can ship features end‑to‑end and build AI tooling for its Braiins Manager platform. You will work on both the web stack and the internal AI agent platform, shaping how AI is integrated into the product.

Key responsibilities

• Own feature development across the full lifecycle: design, implementation (backend and frontend), and production troubleshooting.
• Develop and maintain the NestJS/TypeScript API, PostgreSQL database, Redis queues, Kafka streams, gRPC services, Angular dashboard, React desktop frontend, and Rust daemon.
• Design, implement, and evaluate AI agents, MCP integrations, context engineering, and retrieval over domain data.
• Ensure code quality with Git, Docker, CI pipelines, and observability in a Kubernetes environment.

Required profile

• Strong TypeScript expertise on both server (Node.js/NestJS) and modern SPA frameworks (Angular, React, or Vue).
• Deep knowledge of PostgreSQL, relational modeling, and complex SQL beyond ORM usage.
• Hands‑on experience with LLMs, tool/function calling, agent orchestration, and evaluation pipelines.
• Proficiency with asynchronous, distributed systems, queues, at‑least‑once delivery, idempotent handlers, and micro‑service architecture.

Required skills

• TypeScript, Node.js, NestJS
• Angular, React (SPA frameworks)
• PostgreSQL, SQL, Redis, Kafka, BullMQ, gRPC
• Docker, Kubernetes, Git, CI/CD
• Rust (optional), Python (optional)
• Unit and integration testing, debugging, algorithms and data structures

What we offer

• Full‑time permanent contract with flexible hours (employee or freelance option).
• 5 weeks vacation, 3 sick days, fully remote work with optional Prague office.
• Generous AI tooling budget and freedom to experiment.
• Long‑term work on products used by industrial‑scale Bitcoin mining operations.