Business analyst for GMI migration

We're looking for a Business Analyst / Project Manager (BA/PM) to work in the Global Markets Technology & Operations for one of our Financial Services clients. You will work on decommissioning a legacy platform (GMI) and migrating to the next-generation target architecture. We are seeking a highly analytical, hybrid Business Analyst / Project Manager with a proven track record of delivering high-impact data migration, transformation and platform migration initiatives within Capital Markets.

• Lead requirements gathering, process analysis, and target-state design for cleared derivatives platforms, including Futures & Options trade lifecycle processes and downstream finance impacts.
• Process Design & Documentation, Hands-on test execution, Writing Procedures & Training
• Perform data analysis, profiling, and source-to-target mapping to support migration activities, ensuring data quality, integrity, and alignment across legacy and target platforms.
• Drive migration readiness through test design, reconciliation frameworks, defect resolution, UAT support, and parallel run validation to ensure successful platform implementation.
• Collaborate and partner with business, technology, operational teams, vendors, and clearing houses to deliver complex transformation initiatives while managing risks, dependencies, and programme milestones.
• Basic PM skills - RAID tracking, Test & Defect management, Stakeholder management
• Source-to-Target Mapping (STTM) Template: Specifying how core legacy tables map to a modern normalized target schema.
• Event-to-Postings Accounting Map (General Ledger Integration): Outlining how key clearing events (e.g., Option Exercise or Margin Settlement) translate into debit/credit entries.
• Parallel Run Reconciliation Framework: Establishing the matching rules, tolerances, and the integration of AI-assisted tools for rapid break investigation.
• Business Acceptance Criteria & Go-Live Readiness Checklist: Detailing the data quality gates and operational criteria required for a safe decommissioning sign-off.

• An experienced BA/PM from a Tier 1 Investment Bank, Prime Services, Clearing House (CCP) or a top-tier Management Consulting firm
• Experience of Global Markets Interface (GMI product), next-generation clearing platforms (e.g. FIS Cleared Derivatives Suite / CDS) and ION XTP (post-trade processing platform), Reference Data or Markets Operations
• Proven experience delivering complex data migration, transformation, reconciliation and platform migration initiatives within capital markets or tier-1 investment banking environments
• Solid functional knowledge of the end-to-end Futures & Options trade lifecycle, including trade capture, clearing mechanics, settlement, position management, and operational exception handling
• Good understanding of Financial Accounting and General Ledger (GL) processes. Must understand how transactional business events generate downstream accounting entries and the formation of debit and credit postings
• Deep, practical familiarity with clearing and markets operations. Understanding of security master setup, end-of-market runs (EOM), regional processing, and core report structures
• Advanced proficiency in SQL (writing complex joins, subqueries, CTEs, analytical functions) to query relational databases (Oracle, Sybase, DB2, or SQL Server)
• Practical experience defining/validating source-to-target mappings (STTM), designing data quality rules, writing migration test cases, and outlining business acceptance criteria
• Practical experience (or strong proficiency) in utilizing AI-assisted analysis tools, LLMs, or agentic frameworks to accelerate data profiling, break analysis, and root cause investigation
• Master of Microsoft Excel (Power Query, advanced formulas)
• Stakeholder management skills; focus on maintaining high data integrity and driving operational risk reduction.
• Outstanding communication skills, with the ability to articulate highly technical data mappings and accounting flows to business operational users
• Будет плюсом: Familiar with automated reconciliation platforms (e.g. Intellimatch, SmartStream); Knowledge of Agile delivery frameworks (e.g. Jira, Confluence) and BPMN

• London Hybrid (2-3 days in the office)
• 6 months (with potential to extend)
• ASAP (screening will take 5-6 weeks from offer)
• Competitive (Inside IR35)
• All Associates must contract under PAYE arrangements through a Deloitte approved 'Employment Company' (aka 'umbrella company.')