Business Analyst - Inside IR35 - Back Office Migration

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:

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• Eliciting and documenting business requirements, process flows and data mappings across settlement and accounting systems
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• Analysing as-is and to-be processes, including trade settlement, netting, cash and securities movements, booking models and accounting flows
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• Supporting system migration activities such as functional design, data migration, reconciliations and legacy decommissioning
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• Driving UAT planning and execution, including test scenario definition, coordination and defect triage
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• Supporting parallel run and post-implementation validation to ensure data accuracy and operational control
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• Ensuring all changes align with governance, risk and regulatory requirements
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Experience Required

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• Proven experience as a Business Analyst within back office / post-trade environments
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• Strong understanding of settlements, accounting flows and financial reconciliations
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• Experience supporting OMS or large-scale system migrations / change programmes
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• Strong process mapping, data analysis and documentation skills
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• Confident stakeholder management across Operations, Finance, Risk and Technology
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Desirable:

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• Experience with settlement or accounting platforms / post-trade vendor systems
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• Knowledge of booking models, net settlement and control frameworks
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• Exposure to regulatory or audit-driven change in financial services
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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.