GenAI Data Scientist: Build End-to-End Talk-to-Data Apps

Lever, Inc.; Polska; On-site; PLN 180,000 - 280,000; Full time

Job summary

Lingaro is seeking a Data Scientist to join the DS&AI Competency Center to build end-to-end GenAI applications. You will design RAG pipelines, tune LLMs and integrate MCP connectors, aligning technical plans with business goals and client needs.

The role emphasizes hands-on ML/NLP work, multi-model evaluation, and collaboration with stakeholders to deliver value in a long-term engagement at Lingaro.

Qualifications

• Familiarity with theory behind deep learning concepts.
• Experience with ML, Generative AI (LLM/NLP) and multimodal models.
• Experience translating business requirements into technical data processing and modeling plans.
• Fluency in Python and SQL, plus knowledge of vector databases.

Responsibilities

• Build end-to-end GenAI applications (chatbots, Talk-to-Data systems) including data ingestion, retrieval, orchestration and simple UI components.
• Design and implement RAG pipelines with vector databases, hybrid search, and evaluation frameworks for relevance and robustness.
• Perform model selection, prompting strategies, and fine-tuning for text, code, and multimodal models with guardrails and A/B testing.
• Integrate and optimize LLM interactions with external tools and data sources using MCP connectors.
• Translate business problems into technical goals with defined success metrics and stakeholder alignment.
• Support project delivery and Pre-sales initiatives.

Skills

Deep learning concepts

NLP

Generative AI

Python programming

SQL

Tools

PyTorch

HuggingFace

LangChain

LangGraph

OpenAI API

Gemini API

Job description

Lingaro is seeking a Data Scientist to join the DS&AI Competency Center to build end-to-end GenAI applications. You will design RAG pipelines, tune LLMs and integrate MCP connectors, aligning technical plans with business goals and client needs.

The role emphasizes hands-on ML/NLP work, multi-model evaluation, and collaboration with stakeholders to deliver value in a long-term engagement at Lingaro.