Senior Payroll Transition Specialist – 6 Months initial contract – Basildon, UK (On-site, 5 days per week) – £#removed# per day (Inside IR35)
My client, in the Fintech industry, is hiring a hands‑on Payroll Transition Specialist to support major payroll transformation activity across EMEA.
In this role you'll lead end‑to‑end payroll transitions across Germany, Belgium, and the Netherlands, including a key migration from ADP Streamline to ADP Celergo in Germany.
This is a delivery role – you'll be in the detail, working directly with payroll teams and vendors to ensure successful testing, transition, and go‑live.
Key Responsibilities
* Lead payroll vendor/platform transitions end‑to‑end
* Own payroll testing (strategy, scripts, execution, defect resolution)
* Support UAT, data validation, and parallel runs
* Drive accurate, reconciled payrolls through to go‑live
* Create clear SOPs and ensure knowledge transfer
* Train teams on new systems and processes
* Act as payroll SME across Payroll, HR, Finance, and vendors
Key Requirements
* Proven experience delivering payroll transitions / implementations
* Strong ADP Celergo experience
* Germany payroll expertise (essential)
* Experience with payroll testing, parallel runs, and reconciliations
* Ability to operate hands‑on in fast‑paced environments
Desirable
* Belgium / Netherlands payroll experience
* Outsourced payroll / vendor management experience
* German or Dutch language skills
Ideally you will have some of the below specific experience to be a suitable match for this engagement
* High‑impact transformation work across multiple countries
* Full ownership of payroll transition delivery
* Visible role working closely with key stakeholders
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