AI Engineer / LLM Engineer
New
Locations: Warszawa, Poznań, Wrocław, Gdańsk, Kraków, Country code: PLFull-TimeSenior
Salary5060 - 6867 CHF per hour b2b currencySource=conversion; 5536 - 7513 EUR per hour b2b currencySource=conversion; 6439 - 8739 USD per hour b2b currencySource=conversion; 4825 - 6548 GBP per hour b2b currencySource=conversion; 23520 - 31920 PLN per hour b2b currencySource=original
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Job Details
- Languages
- En C1, pl C1
- Required Skills
- TypeScriptSoftware EngineeringPrompt Engineering
Requirements
- Software engineering background (Typescript is a must)
- Experience building production systems leveraging LLM-based workflows beyond simple RAG or PoC implementations
- Strong understanding of modern agentic patterns including tool use, planner-executor, sub-agents, single-agent vs multi-agent, memory/context, and routing
- Methodical approach to evaluations, tuning, and error tracking
- Ability to track and optimize both cost and quality
- Practical experience with tool calling and structured outputs
- Practical MCP experience — both as a consumer and as a provider/server
- Understanding of prompt injection and other risks related to agentic systems
- Agentic coding as a daily workflow
- Very good English and Polish
Responsibilities
- Designing and developing production-grade agentic systems
- Building workflows powered by LLMs and multimodal models
- Implementing tool calling, routing, memory/context management, and structured outputs
- Developing agent orchestration and multi-agent architectures
- Evaluating output quality, debugging, and optimizing cost/performance
- Supporting the development of an internal agent engine
- Using agentic coding as a daily engineering workflow
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