£415/day - Inside IR356 months contract3 days per week onsiteData Lineage Developer (C#/Oracle) - Contract Position Location: London Contract Type: Contract Seniority Level: AVP About the Role Our client, a prestigious investment bank, is seeking a highly skilled Data Lineage Developer to join their development team on a contract basis. This is a unique, specialist position that combines deep technical expertise with analytical rigour to map and document complex data flows across enterprise systems. Unlike traditional development roles, this position focuses on reverse-engineering existing C#/.NET applications and Oracle databases to create comprehensive data lineage documentation. you''ll be instrumental in enhancing data governance and regulatory compliance across the organisation. What you''ll Be Doing Conducting detailed analysis of C#/.NET source code to trace SQL interactions and data movements Examining Oracle PL/SQL procedures, scripts, and ETL processes to identify transformations and dependencies Creating precise technical documentation that maps data flows across applications and databases Working alongside Collibra specialists to register lineage metadata within the governance platform Collaborating with DBAs and development teams to verify accuracy and completeness of lineage mapping Maintaining version control for all analysed code and documentation to ensure proper audit trails Resolving technical ambiguities in complex business logic and database architecture