M&A HR Project Manager (401K Integration)

Location: Newtown Square, Pennsylvania, United States

Salary: $50–$60 per hour

Company

hirify.global is recruiting for a client seeking support for M&A integration and HR operations projects.

What you will do

• 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 acquired-company teams to maintain integration timelines.
• Review and validate data before and after conversion using Excel reconciliations and validation checks.
• Identify discrepancies, track them to resolution, and maintain integration checklists, trackers, and status updates.
• Support payroll, benefits, HCM system changes, audits, data cleanup, and special projects when M&A work is light.

Requirements

• Hands-on M&A integration experience, preferably in HR, payroll, or benefits.
• Experience with 401(k) integration, including plan mergers, data transfers, or provider transitions.
• Experience integrating payroll and benefits programs.
• Advanced Excel skills, including lookups, pivot tables, data comparison, and large-dataset handling.
• Ability to consolidate, coordinate, review, and verify data across multiple sources with strong attention to detail.
• Clear communication skills and the ability to work independently and manage time in a part-time role.

Nice to have

• Experience with Workday, UKG, ADP, Paylocity, or similar HCM platforms.
• Background in HR operations, payroll, benefits administration, or HR consulting.
• Familiarity with compliance considerations for benefits and retirement plans.

Culture & Benefits

• Part-time commitment of approximately 20 hours per week.
• Flexible workload focused primarily on active M&A projects.
• Exposure to live M&A activity and cross-functional work.
• Variety of deal-driven projects and ongoing payroll, benefits, and HCM initiatives.