Senior Fullstack Data Scientist – GenAI / LLM / RAG

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Description

Senovo IT is looking for an experienced Senior Fullstack Data Scientist to join an enterprise GenAI programme focused on building production-ready solutions using LLMs, RAG, AI Agents and modern Generative AI frameworks . Location: Poland – 100% Remote Contract: B2B Language: English only The Role You will work across the full GenAI development lifecycle — from discovery and architecture through hands-on development and production deployment. The role combines Data Science, Python engineering and GenAI solution design , with a strong focus on RAG, LLM applications and AI agents. Key Responsibilities Design and deliver end-to-end Generative AI solutions based on LLMs, RAG and AI Agents. Translate business requirements into scalable GenAI architectures. Build RAG pipelines using vector databases, hybrid search, reranking and query transformation. Develop GenAI applications using LangChain, LangGraph, LlamaIndex or similar frameworks. Build production-grade backend/API components in Python . Work with prompt engineering, model selection and fine-tuning including LoRA, QLoRA and SFT. Implement LLM evaluation, validators, guardrails, PII controls and human-in-the-loop workflows . Design and integrate MCP servers/clients for agent-based applications. Integrate GenAI solutions with enterprise applications and cloud platforms. Support technical estimations and architectural decisions. Mentor Data Scientists and Engineers and contribute to reusable GenAI components and best practices.

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