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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Business Analyst / Data Analyst (GMI Migration) - **Company:** Deloitte - **Location:** London, UK - **Contract:** Temporary to permanent - **Skills:** Microsoft Excel, Artificial Intelligence, Data Analysis, Confluence, JIRA, Business Process Model and Notation, Profiling, Data Integrity, Data Migration, Data Profiling, Data Structures, IBM DB2, Relational Databases, Excel Formulas, Microsoft SQL Server, Oracle (Applications), SQL Databases, Data Streaming, Technical Data Management Systems, Large Language Models, Sybase, Analytic Functions, Powerquery, IntelliMatch - **Published:** August 14, 2026 - **Apply:** https://apply.deloitte.co.uk/UKCareers/Login?jobId=24604 ## About the Role * An experienced BA/DA from a Tier 1 Investment Bank, Custody Bank, Clearing House (CCP), or a top-tier Management Consulting firm. * Capital Markets Delivery: Proven experience delivering complex data migration, transformation, reconciliation and platform migration initiatives within capital markets or tier-1 investment banking environments. * Futures & Options (F&O) Trade Lifecycle: 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. * System Knowledge: Deep, practical familiarity with clearing. Understanding of security master setup, end-of-market runs (EOM), regional processing, and core report structures. * SQL & Data Analysis: Advanced proficiency in SQL (writing complex joins, subqueries, CTEs, analytical functions) to query relational databases (Oracle, Sybase, DB2, or SQL Server). * Data Migration Engineering: Practical experience defining/validating source-to-target mappings (STTM), designing data quality rules, writing migration test cases, and outlining business acceptance criteria. * AI-Assisted Analysis: 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 Desirable: * Experience of Global Markets Interface (GMI product) and with next-generation clearing platforms (e.g., FIS Cleared Derivatives Suite / CDS). * Familiar with automated reconciliation platforms (e.g. Intellimatch, SmartStream) * Knowledge of Agile delivery frameworks (e.g. Jira, Confluence) and BPMN ## Description We're looking for a Business Analyst / Data Analyst (BA/DA) 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 / Data Analyst with a proven track record of delivering high-impact data migration, transformation and platform migration initiatives within Capital Markets. You will be the bridge between Clearing Operations, Technology, Front Office, and Finance dissecting legacy data structures and designing the "To-Be" data flows, business rules, and mapping for the target platform. This is a highly technical operational role requiring an expert understanding of the skills below., 1. Business Analysis & Requirements Engineering: Lead requirements gathering, process analysis, and target-state design for cleared derivatives platforms, including Futures & Options trade lifecycle processes and downstream finance impacts. 2. Data Profiling, Analysis & Mapping: Perform data analysis, profiling, and source-to-target mapping to support migration activities, ensuring data quality, integrity, and alignment across legacy and target platforms. 3. Migration, Testing & Parallel Runs: Drive migration readiness through test design, reconciliation frameworks, defect resolution, UAT support, and parallel run validation to ensure successful platform implementation. 4. Stakeholder & Program Delivery: Collaborate and partner with business, technology, operational teams, vendors, and clearing houses to deliver complex transformation initiatives while managing risks, dependencies, and programme milestones. ## Related Videos - [Data Fabric in Action - How to enhance a Stock Trading App with ML and Data Virtualization](https://www.wearedevelopers.com/videos/253-data-fabric-in-action-how-to-enhance-a-stock-trading-app-with-ml-and-data-virtualization) - [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray) - [Modern Data Architectures need Software Engineering](https://www.wearedevelopers.com/videos/1030-modern-data-architectures-need-software-engineering) - [Collaboration Quantified: Lessons from Open Source Developer Networks](https://www.wearedevelopers.com/videos/1422-collaboration-quantified-lessons-from-open-source-developer-networks) - [Blueprints for Success: Steering a Global Data & AI Architecture](https://www.wearedevelopers.com/videos/1577-blueprints-for-success-steering-a-global-data-ai-architecture) - [Integrate your Cognitive Assistant with 3rd-party DBs and software](https://www.wearedevelopers.com/videos/249-integrate-your-cognitive-assistant-with-3rd-party-dbs-and-software) ## Related Articles - [Data Analyst Salary in the UK](https://www.wearedevelopers.com/magazine/278-data-analyst-salary-in-the-uk) - [Data Analyst Salary Germany](https://www.wearedevelopers.com/magazine/277-data-analyst-salary-germany) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk) - [Best Companies to work for in London: Top 25 Companies in 2023](https://www.wearedevelopers.com/magazine/187-best-companies-to-work-for-in-london-top-25-companies-in-2023) - [Data Analyst Salary in Switzerland](https://www.wearedevelopers.com/magazine/276-data-analyst-salary-in-switzerland) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)