Administrative Assistant – Health and Benefits Team

Administrative Assistant – Health and Benefits Team

We are seeking a talented individual to join our Health and Benefits Admin team at Mercer. This role will be based in Lisbon and is a hybrid role that requires working at least three days a week in the office.

The Health and Benefits Admin team’s main objectives are related to ensuring the operational management with the Insurance Company. It focuses on making inclusions, exclusions and data changes, verifying and reconciling billing, supporting the claims processes (including support of a Clinical Consultant), managing employee benefits, and providing overall support.

As an Administrative Assistant you’ll support the business of Health and Benefits from an operational perspective, gaining deep understanding of all Mercer benefits solutions and becoming a more complete professional.

You will be given the opportunity to get to know different clients and realities, becoming a trusted advisor.

• Process and review participant forms and requests, and assist with complex participant questions;
• Perform peer review on participant transactions and assist the Service Center with escalated participant phone calls;
• Prepare and peer review client reports, including weekly, monthly, and quarterly reporting;
• Monitor timely processing of files and reports;
• Manage benefits and retirement plans on behalf of clients, serving as subject‑matter experts and technical resources for daily administration, case management, and project work;
• Provide experienced, independent administrative support as a Plan Administrator.

• At least a B2 level of English;
• Microsoft Excel skills;
• Team player with excellent interpersonal skills;
• People‑oriented mindset;
• Organized and process‑oriented approach;
• Good communication skills.

• Experience in customer support.

• Professional development opportunities, interesting work, and supportive leaders;
• A vibrant and inclusive culture that encourages collaboration and innovation;
• A range of career opportunities and benefits that enhance well‑being.

Mercer, a business of Marsh Mc
Lennan (NYSE: MMC), is a global leader in helping clients realize their investment objectives, shape the future of work and enhance health and retirement outcomes for their people. For more information, visit mercer.com or follow us on Linked
In and X.

Marsh Mc
Lennan is committed to creating a diverse, inclusive, and flexible work environment. We aim to attract and retain the best people and embrace diversity of age, background, disability, ethnic origin, family duties, gender orientation or expression, marital status, nationality, parental status, personal or social status, political affiliation, race, religion and beliefs, sex/gender, sexual orientation or expression, skin color, or any other characteristic protected by applicable law.

Marsh Mc
Lennan is committed to hybrid work, which includes the flexibility of working remotely and the collaboration, connections, and professional development benefits of working together in the office. All Marsh Mc
Lennan colleagues are expected to be in their local office or working onsite with clients at least three days per week. Office‑based teams will identify at least one “anchor day” per week on which their full team will be together in person.

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