M&A HR Project Manager

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 #J-18808-Ljbffr Top Stack