Treasury Accountant - (IFRS 9 & TMS implementation)

Treasury Accountant – IFRS 9 & TMS Implementation experience 6-Month Contract | London (Hybrid) | £600/day (Inside IR35)

Join a global, multi-billion-dollar organisation at a critical point in its treasury transformation. This is a high-impact role where you’ll sit at the heart of a major TMS implementation owning treasury accounting, shaping system design, and driving best-in-class processes across cash, liquidity, and payments.

The Role

You’ll act as the go-to SME for Treasury Accounting while also leading key business analysis activity across the FIS Integrity implementation. Working closely with the Project Manager, IT, and senior stakeholders, you’ll ensure the system is fit-for-purpose, compliant, and built to scale.

What You’ll Be Doing

Own Treasury Accounting within the TMS implementation (processes, controls, reporting) Drive end-to-end FIS Integrity delivery, from design through to go-live Map and redesign treasury, payments, and liquidity processes (as-is / to-be) Challenge and validate system configurations against IFRS and best practice Lead UAT, data migration, and parallel run activity Identify risks, gaps, and optimisation opportunities Run workshops and engage global stakeholders across Finance, Treasury, and Tech Deliver training and ensure high-quality documentation throughout

What You Bring

Qualified Accountant (ACA / ACCA / CIMA or equivalent). Proven FIS Integrity implementation experience (non-negotiable). Strong Treasury & Hedge Accounting expertise (IFRS 9). Background in complex, global treasury environments. Sharp business analysis skills, process mapping, design, and delivery. Confident, credible stakeholder engagement.

Why This Role Stands Out Front-row seat in a global treasury transformation Real ownership and influence on system and process design

If you’ve delivered FIS Integrity and want a role where you can genuinely shape the outcome this is it.