Data Business Analyst – (Data Migration & Front Office Operations)

London, United Kingdom | Posted on 03/08/2026

Role: Data Business Analyst – (Data Migration & Front Office Operations)

Location: Hybrid based in London or Belfast 3 days a week, 2 days remote

Start Date: ASAP

End Date: End of 2026, Strong chance of extension

Daily Rate: Competitive, Inside IR35

Payroll provider – Rockford Payroll  Info for Contingent Workers – Rockford Pay

This is an excellent opportunity to join a high-profile transformation programme working for one of Deloitte’s clients within its Capital Markets division. Working on a large-scale data migration initiative, partnering with Front Office, Operations, Finance and Technology teams to deliver critical change across trading platforms.

• Lead business analysis activities across complex data migration and transformation programmes.
• Define and validate source-to-target mappings, reconciliation rules and data quality requirements.
• Investigate data issues, perform root cause analysis and support migration testing.
• Work closely with stakeholders across Front Office, Operations, Technology and Finance to gather and document business requirements.
• Support platform migration activities, ensuring data integrity and successful business acceptance.
• Analyse operational processes and identify opportunities to reduce risk and improve controls.
• Leverage AI-assisted analysis tools to accelerate investigation, mapping validation and reconciliation activities.

✔ Proven Business Analyst experience delivering data migration, transformation and reconciliation projects.

✔ Strong background within Capital Markets, ideally covering Futures & Options.

✔ Experience across the full trade lifecycle, including:

• Trade Capture
• Clearing
• Settlement
• Position Management
• Exception Management

✔ Expertise creating and validating:

• Source-to-target mappings
• Data quality rules
• Migration test cases
• Business acceptance criteria

✔ Strong understanding of Financial Accounting and General Ledger (GL)processes.

✔ Ability to investigate discrepancies across operational systems, product processors and finance platforms.

✔ Excellent stakeholder management skills with experience working across Front Office, Operations, Technology and Finance.