Senior Software Engineer

This is a Senior Software Engineer - Knowledge Graph role responsible for owning the data quality, integration, and development of the knowledge graph platform - a critical asset that integrates heterogeneous drug discovery and gene biology data. The primary responsibility is ensuring the knowledge graph contains accurate, traceable, and reliable data. As the robustness of the graph grows, a key expected outcome is a measurable reduction in time spent resolving data quality issues across the teams that depend on it. Key responsibilities Own data quality: Define and enforce data validation, provenance tracking, and quality metrics across all data sources in the graph Integrate data sources: Work closely with internal and external data providers to ingest, normalize, and harmonize heterogeneous biomedical datasets Maintain the knowledge graph: Own the Neo4j schema, data modeling, and pipeline reliability Prepare data for AI/analytics: Ensure graph data is structured and trustworthy enough to support downstream AI and analytics use cases - including the Blindspot Analysis Collaborate cross-functionally: Work with research scientists, data scientists, and engineers to translate scientific needs into reliable data solutions Qualifications Strong Python skills for data engineering and pipeline development Hands-on experience with Neo4j (Cypher, schema design, query optimization) Proven experience integrating multiple heterogeneous biomedical data sources Deep understanding of data quality practices in production environments Experience working directly with data providers to resolve schema, identifier, and consistency issues Familiarity with biomedical standards and identifiers (UniProt, Ensembl, ChEMBL, etc.) Strong communication skills with cross-functional scientific and technical teams Nice to have Experience in pharma, biotech, or academic drug discovery Advanced degree (MSc/PhD) in a relevant field Familiarity with graph ML, embeddings, or search/retrieval concepts Contact person: mateusz.jozefiak@eworkgroup.com Client code: MM03 Do you know someone who would fit this position? Recommend a candidate by sending her/his CV to: polecenia@eworkgroup.com Whistleblowing Policy, which provides guidelines for reporting misconduct can be found on Ework website: https://www.eworkgroup.com/about-us/our-respo