Mercury Systems · 1 day ago
Retirement Plan Administration Specialist
Somerville, MA
Full-time
Hybrid
Entry, Mid Level
2+ years expMercury Systems is a technology company that makes the world a safer, more secure place. The Retirement Plan Administration Specialist is primarily responsible for the administration of retirement plans and health accounts, ensuring compliance and enhancing employee engagement through effective communication and vendor management.
ComputerElectronicsManufacturingProduct DesignSoftware
No H1B
U.S. Citizen Only
Responsibilities
Oversee day-to-day administration of the company’s 401(k) and deferred compensation plans, including eligibility, enrollments, contribution changes, loans, withdrawals, periodic reconciliations and required notices
Ensure timely and accurate processing and transmission of employee records, payroll contributions, employer matches and forfeitures
Manage annual plan activities with support from external vendors, including non-discrimination testing, true-up and annual contributions, Form 5500 preparation and filing, and external audits
Oversee day-to-day administration of the company’s health savings account (HSA) and flexible savings account (FSA) programs, including periodic reconciliations of contributions across internal systems and third-party vendors
Support employees as a subject matter expert on retirement plan, HSA and FSA inquiries, including drafting individual and collective plan communications and addressing employee issues and routine inquiries
Maintain retirement plan, HSA and FSA documentation, procedures and internal controls
Manage and administer employee leave of absence programs, including FMLA, parental leave, medical leave and other applicable policies, including compliance with applicable law while providing guidance and support to employees and managers throughout the leave process
Provide periodic support on an as-needed basis to other members of the Total Rewards team, particularly with respect to the company’s health and welfare plans
Qualification
Required
Bachelor's Degree from an accredited college or university
Typically requires 2+ years of experience in benefits administration with a strong focus on retirement plans, particularly 401(k) plans
Strong project management and analytical skills
Excellent communication and executive presence, including the ability to run webinars for employee populations
Working knowledge of ERISA, IRS and DOL regulations
The ability to work in a fast-paced and highly dynamic environment, juggling multiple priorities
A sense of urgency and a strong customer-service approach to our business and function leaders, as well as to our employees
Proficient in Microsoft Office Suite
Preferred
CEBS (Certified Employee Benefit Specialist), CEP (Certified Equity Professional) or equivalent
Experience with Fidelity as a retirement plan recordkeeper
Benefits
Comprehensive skills training
Tuition reimbursement
Company
Mercury Systems
Mercury Systems is a leading commercial provider of secure sensor and safety-critical processing subsystems.
1001-5000 employees
Funding
Current Stage
Public CompanyTotal Funding
unknown1998-01-30IPO
Leadership Team
Bill Ballhaus
Chairman and CEO, Director
Tod Brindlinger
Senior Vice President Operations and Supply Chain
Recent News
2026-01-21
2025-12-08
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