• £415/day - Inside IR35
• 6 months contract
• 3 days per week onsite

Data 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 architectures

• Expert-level knowledge of C#/.NET and Oracle PL/SQL, including complex query optimisation
• Strong understanding of enterprise application and database architectures
• Proven ability to interpret intricate source code and communicate findings clearly to varied audiences
• Excellent documentation capabilities for producing structured, technical artifacts
• Experience collaborating with system owners and database administrators across distributed teams
• Comfortable working across multiple time zones with global stakeholders

• Python Scripting for automation and data processing tasks
• Familiarity with data lineage principles and metadata management frameworks
• Hands-on experience with Collibra or comparable data governance platforms

• Comprehensive technical documentation for application and database components
• Accurate data flow mappings showing transformations and system dependencies
• Version-controlled repositories of analysed code and lineage artifacts
• Regular status updates and risk assessments on lineage coverage

• Play a pivotal role in a high-visibility initiative that directly impacts regulatory compliance
• Gain exposure to enterprise-scale data governance using industry-leading tools like Collibra
• Work with experienced professionals across application development and data governance disciplines
• Apply your technical depth in a strategic capacity that influences business-critical decision-making