Data Architect

Data Architect Mainframe Migration & Modernisation (Contract)

Were recruiting an experienced Data Architect to lead a critical mainframe data migration and modernisation programme for a large enterprise environment. This is a hands-on, delivery-focused role working on complex Db2 on z/OS systems and migrating data to modern cloud-based relational platforms.

Youll be responsible for designing and delivering Change Data Capture (CDC) pipelines, ensuring accurate, low-risk data movement with zero-surprise cutovers. The role involves deep involvement across data modelling, integration architecture, validation, reconciliation, and event-driven design.

Key Responsibilities

• Design and operate CDC pipelines (IBM CDC, Precisely or equivalent)
• Migrate data from Db2 / mainframe (z/OS) to PostgreSQL / Aurora
• Build Kafka-based integration pipelines and event-driven architectures
• Deliver dual-run migrations, cutover planning, rollback and reconciliation
• Perform logical and physical data modelling (OLTP and analytics trade-offs)
• Ensure strong data quality, validation and governance controls

Essential Skills

• Proven experience as a Data Architect or Data Migration Architect
• Strong Db2 and mainframe (z/OS) knowledge
• Hands-on CDC design and delivery
• Kafka and event-driven integration experience
• PostgreSQL / Aurora data modelling
• Strong SQL and data validation mindset

Nice to Have

• IBM CDC / Precisely
• COBOL copybooks or VSAM exposure
• Financial services or large-scale enterprise environments

This role suits a senior, hands-on architect who enjoys owning complex data migrations end to end.