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Job · Mid-level

Data Scientist (Generative AI)

Data Scientist • Mid-level • Remote • Full-time • Poland Poland

Build end-to-end Talk-to-Data solutions and GenAI applications (chatbots, RAG systems) using LLMs, with model fine-tuning and MCP connector integration, as part of Lingaro's AI team.

Responsibilities

  • ▹Build GenAI applications (chatbots, voicebots, Talk-to-Data systems)
  • ▹Design RAG pipelines with vector databases and hybrid search
  • ▹Perform model selection, prompting strategies, and fine-tuning (LoRA/QLoRA/SFT)
  • ▹Integrate LLMs with external tools and data sources via MCP connectors
  • ▹Translate business problems into technical goals
  • ▹Support pre-sales activities

Requirements

  • ▹Theoretical familiarity with deep learning concepts
  • ▹Experience with Machine Learning, especially Generative AI/NLP
  • ▹Fluency in Python and OOP, working knowledge of SQL and vector databases
  • ▹Strong background in Azure or GCP cloud
  • ▹Knowledge of PyTorch, HuggingFace, LangChain, LangGraph, and GenAI APIs (OpenAI/Gemini)
  • ▹Hands-on experience designing or operating MCP servers/clients

Nice to have

  • ▹Experience with Databricks
  • ▹Proven commercial projects in Generative AI, NLP, or Computer Vision
  • ▹Experience with microservice architectures
  • ▹Experience mentoring junior colleagues

Soft skills

Strong business acumenCreative problem-solvingAbility to lead juniors in a project team

About the company

Lingaro's Data Science & AI Competency Center specializes in Generative AI and LLM-based solutions, including RAG, summarization, and multi-agent workflows.

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