Overview
Business Analyst – OMS Migration (Back Office / Post-Trade)
Location: City of London – 3 days per week into Office
Inside IR35: 600
Duration: 12-months
We”re supporting a global financial services organisation on a major OMS migration programme, impacting core back-office settlements and accounting platforms.
This role sits within a wider transformation focused on modernising post-trade systems and ensuring operational stability, financial accuracy, and regulatory compliance throughout the migration lifecycle.
You’ll play a key role in delivering the OMS migration, working across Operations, Finance, Risk and Technology to define requirements and ensure successful implementation.
Key responsibilities include:
- Eliciting and documenting business requirements, process flows and data mappings across settlement and accounting systems
- Analysing as-is and to-be processes, including trade settlement, netting, cash and securities movements, booking models and accounting flows
- Supporting system migration activities such as functional design, data migration, reconciliations and legacy decommissioning
- Driving UAT planning and execution, including test scenario definition, coordination and defect triage
- Supporting parallel run and post-implementation validation to ensure data accuracy and operational control
- Ensuring all changes align with governance, risk and regulatory requirements
Experience Required
- Proven experience as a Business Analyst within back office / post-trade environments
- Strong understanding of settlements, accounting flows and financial reconciliations
- Experience supporting OMS or large-scale system migrations / change programmes
- Strong process mapping, data analysis and documentation skills
- Confident stakeholder management across Operations, Finance, Risk and Technology
Desirable
- Experience with settlement or accounting platforms / post-trade vendor systems
- Knowledge of booking models, net settlement and control frameworks
- Exposure to regulatory or audit-driven change in financial services
This is an opportunity to join a high-impact OMS transformation programme, working across a complex financial services environment and contributing to the modernisation of critical post-trade systems.
If you”re interested in working on large-scale trading system migrations, please get in touch to discuss further.
Guidant, Carbon60, Lorien & SRG – The Impellam Group Portfolio are acting as an Employment Business in relation to this vacancy.
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