Senior Manager, US Retirement Benefits

Lonza•Morristown, NJ

2d•$96,000 - $128,000•Onsite

About The Position

We are seeking a high-caliber professional to join our global team as the Senior Manager, US Retirement Benefits. Reporting to the Senior Director, Global Benefits and HR M&A, you will oversee the day-to-day administration and compliance of our U.S. retirement savings portfolio, managing over $1 billion in plan assets. Operating with broad autonomy, you will secure strict regulatory compliance (ERISA/IRS), direct external vendor networks, chair the internal Retirement Committee, and manage M&A integration activities while providing direct line leadership to a dedicated benefits specialist.

Requirements

5–10 years of advanced experience in corporate retirement plan administration and employee benefits management, ideally gained within a large in-house multinational enterprise or a top-tier benefits consulting firm.
Deep, verified knowledge of complex ERISA legislation, IRS compliance codes, and automated statutory audit frameworks.
Highly exceptional communication and stakeholder management capabilities; proven success navigating a complex global matrix framework and working effectively across diverse multi-site cultures.
Demonstrated capability executing cross-functional HR integration workflows, system implementations, and change management initiatives independently.
Bachelor’s Degree in Human Resources, Business Administration, or a closely related professional discipline is required.
Proactive, "go-getter" attitude with a proven capacity to handle ambiguity, exercise exceptional judgment under pressure, and interpret complex rules pragmatically while remaining aligned with company values.

Nice To Haves

Advanced training or professional pension management qualifications (e.g., CEBS) are a strong advantage.

Responsibilities

Command the day-to-day operational mechanics of all company retirement savings programs, ensuring error-free contribution funding, compliance, and an engaging participant experience.
Act as the primary corporate liaison and account manager for global plan recordkeepers, fiduciary managers, benefit consultants, and external service providers to maintain target service level agreements (SLAs).
Oversee absolute adherence to ERISA, IRS, and Department of Labor (DOL) regulations; direct mandatory non-discrimination testing (NDT), annual plan audits, and timely Form 5500 statutory filings.
Drive strategic plan enhancements, draft legal amendments, and execute seamless change management communications for new legislative updates, including SECURE Act provisions.
Lead internal Retirement Committee operations, independently developing executive-ready dashboards, governance packages, and data-driven recommendations to support long-term fiduciary decisions.
Support the Total Rewards due diligence, benchmarking, and implementation workflows during corporate mergers, acquisitions, and restructuring to ensure seamless retirement asset transfers.
Provide direct line management, daily task prioritization, professional development mapping, and objective-setting for a Retirement Plan Administrator/Analyst.
Partner with global Payroll, Finance, Treasury, Legal, and HR Operations teams to optimize transaction remittances (loans, hardships, distributions) and lead global wellbeing initiatives.