Mercer Wise 401(k) Operations

Marsh McLennan•Boston, MA

22h•Hybrid

About The Position

Marsh is seeking a Sr. Operations Analyst for its Mercer Wise 401(k) team, part of its people and investments business. The role is based in Boston, Denver, or Philadelphia and follows a hybrid schedule, with at least three days per week in the office. The analyst completes daily, monthly, and ad hoc operational processes, supports clients and implementations, and works with internal stakeholders and approved vendors on plan administration, annual testing, audits, and legal filings. The work is fast-paced, deadline-driven, and supported by substantial on-the-job training. The role regularly uses Microsoft Office products, including Excel, Word, and PowerPoint.

Requirements

At least four years of experience in 401(k) administration and a bachelor's degree in business, accounting, or finance, or at least seven years of experience in 401(k) administration.
Good communication skills.
Proficiency in Microsoft Office, especially Microsoft Excel.

Nice To Haves

More than eight years of experience with 401(k) recordkeeping.
Familiarity with Defined Contribution Plans, including plan documents, annual testing and reporting, and Form 5500 and audit matters.
Strong organizational skills.
Clear and effective written and oral communication.
Ability to multitask.

Responsibilities

Complete daily, monthly, and ad hoc processes in support of the team.
Manage daily client inquiries, including ensuring payrolls are processed and funded on time.
Provide operational support and efficiencies for client implementations and client service while following procedures.
Identify opportunities to improve processes and make them more efficient.
Research and resolve inquiries and issues within designated Mercer standards.
Answer client inquiries about the status of participant and plan activity.
Collaborate with Client Service, Legal and Compliance, IT, management, and other internal stakeholders on annual testing, audits, and annual legal filings.
Work regularly with Mercer-approved vendors.
Assist clients with reviewing communications and legal notices.
Work with clients on plan annual testing and reporting, including Form 5500.