Fullstack Engineer – AI Engineer

🔥 13 hours ago

🇨🇿 Czechia – Remote

⏰ Full Time

🟡 Mid-level

🟠 Senior

🤖 AI Engineer

👻 Ghost score 12%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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Braiins

WebsiteLinkedInAll Job Openings

51 - 200 employees

💼 Consulting

🔌 API

Consulting • API

Braiins is a bitcoin mining software company that optimizes mining operations through a variety of innovative solutions, including custom ASIC firmware, mining pools, and autotuning mining firmware. They are known for Braiins Pool, the world's first mining pool, and their advancements in the field with Stratum V2 protocol, aimed at enhancing efficiency and transparency in cryptocurrency mining.

📋 Description

• Own features across the full lifecycle, from architecture and design through implementation and production troubleshooting • Build and maintain the NestJS/TypeScript API, PostgreSQL database, Redis, queue-driven background work, Kafka, and gRPC device integrations • Develop the Angular dashboard and React desktop frontend • Work with the Rust daemon and containerised Kubernetes infrastructure • Design agents and tools for the internal agent platform • Build MCP integrations, context engineering, retrieval over domain data, and evaluation systems • Improve agent orchestration pipelines spanning discovery, design, stories, and implementation with human approval gates • Explore where AI should belong in the Braiins Manager product • Collaborate within an international, multidisciplinary, fully remote team with a flat structure

🎯 Requirements

• Strong TypeScript experience on both server and frontend • Node.js with NestJS or equivalent • Modern SPA framework such as Angular, React, or Vue • 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 experience • Comfort with asynchronous and distributed systems, including queues, at-least-once delivery, idempotent handlers, retries, backpressure, microservices, observability, and time-series or telemetry data at scale • REST and gRPC knowledge • Unit and integration testing experience • Debugging stack traces, slow query plans, and metrics dashboards • Solid understanding of algorithms and data structures • Communicative-level English • Self-direction required for remote work • Kubernetes is a plus, not a requirement • Rust, Python, frontend craft, and Bitcoin or cryptocurrency experience are genuinely optional

🏖️ Benefits

• Full-time position with flexible working hours • Indefinite contract • 5 weeks of vacation and 3 sick days for employees • Fully remote work, with access to modern offices in central Prague • Relaxation room, shower, and parking at the Prague offices • Company events and occasional Braiins brunch • Generous budget for AI tooling • Long-term work on products used daily by industrial-scale mining operations