Senior AI Data Engineer

Billennium is a global technology company with over 20 years of experience, committed to innovation and empowering businesses. We are seeking a Senior AI Data Engineer to support the development of enterprise AI solutions, copilots, and RAG-based systems by transforming complex business data into high-quality, AI-ready knowledge assets.

Key responsibilities

• Lead enterprise data discovery, cleanup, and standardization initiatives across various document repositories and databases.
• Design and build robust ingestion pipelines for unstructured and semi-structured data, including metadata extraction and normalization.
• Create and maintain AI-ready knowledge bases optimized for retrieval, embedding, and RAG use cases using Postgres and pgvector.
• Define and implement data quality frameworks and feedback loops to continuously improve retrieval accuracy.
• Ensure governance, traceability, and privacy compliance through data lineage, auditing, and PII detection practices.

Requirements

• 5+ years of experience in Data Engineering, Applied Data Science, or Analytics Engineering with ownership of production-grade pipelines.
• Strong Python skills and hands-on experience with data processing, parsing, cleaning, and ETL/ELT workflows.
• Proven experience working with unstructured enterprise content such as PDFs, Office documents, and SharePoint repositories.
• Practical experience building data pipelines for NLP, search, or RAG-related use cases.
• Excellent stakeholder management skills with the ability to collaborate across business and engineering teams.

What we offer

• Comprehensive benefits including private medical care, Multisport card, and language lessons.
• Access to professional development opportunities through partnerships with global IT giants like Microsoft, AWS, and Snowflake.
• A fully remote working environment with adaptable hours to suit your lifestyle.
• Collaboration with a diverse, international team in an innovative and growth-oriented workplace.