Senior GenAI & RAG Data Scientist

Astek (Poland); Warszawa; Hybrid; PLN 166,000 - 277,000; Full time

Benefits offered by this job

Multisport

Private healthcare

Life insurance

Training and certifications

Career mentoring

Job summary

Astek Polska seeks a Senior Data Scientist specializing in GenAI and Retrieval-Augmented Generation to support a life sciences client in Warsaw. You will design and implement data-driven AI solutions, focusing on production-ready ML, embeddings, and LLM integration.

You’ll work with cross-functional teams, explore LangChain-based workflows, and evaluate model performance, with a view toward scalable, reliable deployments. Hybrid work may be offered depending on project needs.

Qualifications

• Strong hands-on experience in data science, ML, and Python.
• Practical experience designing and developing RAG pipelines with LLMs.
• Understanding embeddings, semantic search, and vector databases.
• Experience with at least one major cloud platform (AWS/Azure/GCP).
• Ability to work with complex structured and unstructured data.
• Product mindset and cross-functional collaboration.

Responsibilities

• Develop production-ready AI solutions for life sciences projects.
• Design, implement, and maintain Retrieval-Augmented Generation pipelines.
• Integrate LLMs and evaluate model performance.
• Collaborate with data engineers and product teams.
• Translate business needs into data-driven solutions.

Skills

Data Science

Machine Learning

Python

RAG pipelines

LLM integration

Tools

LangChain

LangGraph

LlamaIndex

AWS

Azure

GCP

Job description

Astek Polska seeks a Senior Data Scientist specializing in GenAI and Retrieval-Augmented Generation to support a life sciences client in Warsaw. You will design and implement data-driven AI solutions, focusing on production-ready ML, embeddings, and LLM integration.

You’ll work with cross-functional teams, explore LangChain-based workflows, and evaluate model performance, with a view toward scalable, reliable deployments. Hybrid work may be offered depending on project needs.