Senior Data Scientist: GenAI, ML & Production Systems

Tenth Revolution Group; Warszawa; On-site; PLN 260,000 - 380,000; Full time

Benefits offered by this job

Private medical care

Flexible benefits

Insurance

Pension contributions

Home-office support

Additional paid holidays

Job summary

Tenth Revolution Group is seeking a Senior Data Scientist to join an international ML & AI team. You will turn complex business problems into measurable outcomes by combining Generative AI, classical ML, experimentation, and rigorous evaluation.

You’ll work with LLMs, embeddings, RAG, agentic workflows, classical ML, and optimization across a modern cloud stack including Python, AWS, Azure, and Databricks.

Qualifications

• Master’s or PhD in Data Science or related field.
• 5+ years of experience in Data Science or Applied ML.
• Strong Python and SQL skills; pandas, NumPy, scikit-learn experience.
• Hands-on Generative AI experience: embeddings, prompt engineering, tool calling, RAG, agent frameworks.

Responsibilities

• Translate business needs into data science problems, hypotheses, metrics, and evaluation plans.
• Design and evaluate GenAI and ML solutions, including LLMs, RAG, agents, embeddings, forecasting, classification, and regression.
• Build robust evaluation frameworks, including offline/online testing, human review, hallucination checks, groundedness checks, and error analysis.
• Develop production-quality Python code with testing, documentation, version control, and reproducibility.
• Monitor models and AI systems for drift, performance, cost, latency, and traceability.
• Collaborate with product, engineering, data, and business teams to deliver production-ready solutions.
• Communicate insights, risks, trade-offs, and recommendations clearly to stakeholders.

Skills

Python

SQL

Pandas

NumPy

scikit-learn

Generative AI

LLMs

Experimentation

Stakeholder communication

Education

Master’s or PhD in Data Science or related field

Tools

LangChain

LangGraph

PydanticAI

Databricks

Spark

Git

Job description

Tenth Revolution Group is seeking a Senior Data Scientist to join an international ML & AI team. You will turn complex business problems into measurable outcomes by combining Generative AI, classical ML, experimentation, and rigorous evaluation.

You’ll work with LLMs, embeddings, RAG, agentic workflows, classical ML, and optimization across a modern cloud stack including Python, AWS, Azure, and Databricks.