About the Role
Our client is looking for an experienced M&A Integration/HR Project Manager to support acquisition activity, with a focus on payroll, benefits, and 401(k) integration. Your time will go primarily to active M&A projects. When there is no active deal, you will support other initiatives across the company, mainly in payroll, benefits, and HCM change projects.
What You'll Do
M&A Integration (primary focus)
Support the integration of acquired companies' payroll, benefits, and 401(k) plans
Consolidate employee, payroll, and benefits data from acquired entities into a single view
Coordinate with HR, payroll, finance, benefits carriers, 401(k) providers, and the acquired company's teams to keep integration timelines on track
Review and verify data for accuracy before and after conversion, using Excel-based reconciliations and validation checks
Identify discrepancies, track them to resolution, and document findings
Help maintain integration checklists, trackers, and status updates
Payroll, Benefits & HCM Projects (when M&A work is light)
Support payroll and benefits process improvements and system changes
Assist with HCM system updates, configuration changes, testing, and rollouts
Help with audits, data clean-up, and other special projects as needed
What You Bring
Required
Hands-on M&A integration experience, ideally on the HR, payroll, or benefits side
401(k) integration experience (plan mergers, data transfers, provider transitions, or similar).
Experience integrating payroll and benefits programs
Advanced Excel skills (lookups, pivot tables, data comparison, and large-dataset handling)
Proven ability to consolidate, coordinate, review, and verify data across multiple sources
Strong attention to detail and a habit of double-checking your work
Clear communicator who can work with multiple stakeholders and keep projects moving
Ability to work independently and manage your own time in a part-time role
Preferred
Experience with HCM platforms (e.g., Workday, UKG, ADP, Paylocity, or similar)
Background in HR operations, payroll, benefits administration, or HR consulting
Familiarity with compliance considerations in benefits and retirement plans