Senior AI Native Developer
- Compensation
- PLN 24K–PLN 27K / mo
- Location
- Warszawa
- Work setup
- Hybrid
- Seniority
- Senior
- Employment
- Not specified
- Experience
- 5+ years
- Category
- Software engineering
- Posted
Skills
Must have
- 5+ years of professional software engineering experience, with strong expertise in Golang, Node.js or JavaScript (TypeScript welcome)
- Hands-on experience shipping LLM-based features to production – not only demos
Nice to have
- Practical experience developing AI agents, incl. MCP servers, tool calling or multi-agent setups
- LLM observability tools (e.g. Langfuse)
- Practical DDD experience
- Knowledge of Event Sourcing
- Passion for new technologies and startups
- Pet projects, presence in the IT community
- Any other programming languages and frameworks
Full description
Wynagrodzenie
B2B: 24000 – 27000 PLN / mies. netto
We are all about supercharging tech-based businesses. But make no mistake - software development is just a part of what we do at Startup House. Our mission is to deliver all-around support for growing companies.
Our Development Team is expanding and looking for fresh blood - we’re currently looking for a Senior AI Native Developer, who will help us build amazing products for our clients. As we grow, we're expanding into new areas - including AI, automation, and intelligent systems and we’re searching for someone who is excited to explore with us.
📍 Location: Warsaw
💰 Salary (PLN):
24 000 – 27 000 net + VAT (B2B)
What does AI-native mean for us? Not occasional ChatGPT prompts. AI tools are a core part of how you design, code, test and review – and you know when to trust the model and when to override it. You build it, you run it, you own it, including every line an agent wrote.
What will you do and how can you grow with us?
- Design and ship AI-powered products end to end in Golang and Node.js – RAG pipelines, AI agents, and the APIs and integrations around them – built to enterprise security and compliance standards.
- Make the right architecture calls: an agent or a single model call, RAG, fine-tuning or a better prompt – or plain code when that's the better tool.
- Work AI-first every day: coding agents, spec-first development, automated reviews and tests, and project-level AI context (e.g. CLAUDE.md or rules files) that the whole team benefits from.
- Make AI features production-ready: evals, monitoring of latency, cost and token usage, and catching hallucinations and security gaps before they reach users.
- Join projects for clients of different backgrounds, both business- and consumer-targeted. Wondering what you'd work on? Check out a powerful cyber risk mitigation platform, a Norwegian eco-friendly start-up or something just as exciting!
- Gain wide experience across many industries and ways of working, both for exciting startups and established enterprises like Siemens.
- Own your work and decide on the project's direction.
- Grow fast through our internal knowledge-sharing initiatives – and share your own expertise with more junior team members, helping shape our standards for AI-assisted development.
What we're looking for
Experience:
- 5+ years of professional software engineering experience, with strong expertise in Golang, Node.js or JavaScript (TypeScript welcome)