Payroll Project Manager

Title: US Payroll Project Manager, ADP Outsourcing

Location: Remote, US East Coast

Assignment: 7-8 months

Middlemore has been retained by a global manufacturing group to appoint an experienced US Payroll Project Manager for a significant payroll outsourcing programme.

You will lead the transition of the US payroll to ADP. Part of the workforce is unionised, making experience of union payroll requirements an important part of the assignment.

Taking ownership of delivery from project mobilisation through transition and handover, you will bring the structure, technical understanding and practical leadership needed to complete the programme. You will work closely with ADP and internal teams to translate payroll requirements into a reliable outsourced service, maintaining payroll accuracy and continuity throughout the change.

• Owning the project plan, milestones, risks, dependencies and stakeholder reporting.
• Leading the relationship with ADP throughout the transition.
• Reviewing existing payroll processes and documenting requirements.
• Ensuring union pay rules, deductions and reporting requirements are accurately captured and tested.
• Coordinating payroll data migration and validation, including data flows between Workday and ADP.
• Leading user acceptance testing, parallel payroll runs and reconciliation.
• Managing readiness for launch, resolving issues and coordinating the transition into live service.
• Establishing clear processes, controls and responsibilities for the ongoing outsourced payroll operation.

• Proven experience leading US payroll outsourcing or implementation projects.
• A strong track record of delivering payroll transitions to ADP.
• Experience supporting unionised work forces and interpreting collective bargaining requirements for payroll.
• Strong US payroll knowledge, with the ability to challenge requirements and resolve practical issues.
• Experience working with Workday as an HRIS, ideally alongside ADP.
• Confidence managing vendors, coordinating internal teams and delivering against a fixed deadline.
• Availability to start in November 2026.

This is an opportunity to take a visible lead role in a defined transformation programme, combining specialist payroll expertise with ownership of delivery.

Middlemore is committed to equal opportunities and welcomes applications from all suitably qualified candidates, regardless of age, disability, gender, gender reassignment, marriage or civil partnership, pregnancy or maternity, race, religion or belief, sex, or sexual orientation.