Senior Data Scientist (AI)
New
Warszawa, Stanisława Żaryna 2B, Warszawa, Country code: PLFull-TimeSenior
Salary25,200 - 30,240 PLN per hour
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Job Details
- Languages
- English C1 fluency
- Experience
- 3–5 years
- Required Skills
- DockerPythonKubernetesAzureCI/CDscikit-learnLLMMLOpsLangChain
Requirements
- 3–5 years delivering end-to-end ML/LLM projects, from data prep to production
- Expert-level Python and strong software engineering fundamentals
- Solid MLOps experience across the ML product lifecycle
- Hands-on experience with LLM frameworks, PydanticAI preferred, also LangChain, LangGraph, AutoGen or CrewAI
- CI/CD (GitHub Actions, Jenkins)
- Containerization (Docker, Kubernetes)
- Cloud experience, preferably Azure, ideally with MS AI Foundry or MosaicAI
- English fluency for client-facing work
Responsibilities
- Design and build ML and LLM-driven applications, with focus on RAG and workflow automation
- Architect agent-based AI solutions, including planning, tool usage, memory management and multi-agent coordination
- Develop models combining classical ML (LightGBM, XGBoost, Scikit-learn) with LLMs for generative tasks
- Build evaluation frameworks, including offline/online testing and human-in-the-loop feedback loops
- Integrate AI models securely with internal APIs, databases and SaaS systems
- Collaborate with data scientists, platform engineers and product managers on production-ready features
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