Client Support Specialist

Company: Mercer

We are seeking a talented individual to join our Government Healthcare Consulting (GHSC) team s role will be based in Phoenix, and it is a hybrid position requiring attendance at the office at least three days a week.

• Complete monthly client invoicing
• Create and edit documents using advanced technical skills in Microsoft Word, Excel, and PowerPoint while ensuring all documents produced adhere to Mercer’s global identity/document standards
• Establish, maintain, and manage client subject files, personal working files, and legal plan documents as applicable
• Provide peer review of documents before final production/distribution to ensure quality control of the final product
• Handle sensitive information with professionalism and integrity while communicating openly and often among team members
• Contribute to accurate client/project budget management through accurate and prompt time entry
• Strive to promote smooth workflow and ensure team needs are met
• Assist team with a variety of tasks assigned

• Bachelor’s Degree or equivalent work experience
• 1-2 years of project support experience, preferably in a consulting environment or professional service industry
• Advanced computer skills, including extensive experience with Microsoft Office (Outlook, Word, Excel, PowerPoint)
• Strong judgment, discretion, confidentiality, and decision‑making skills with the ability to interact with all levels within the organization
• Capability to work well under pressure and with limited direction while handling multiple tasks and prioritizing effectively
• Exceptional interpersonal, organizational, business communication, and time‑management skills
• Strong attention to detail
• Demonstrated problem‑solving capabilities

• Ability to manage multiple tasks
• Excellent oral and written communication skills
• Ability to adapt quickly to business needs and priorities
• Previous billing/invoicing experience

• Professional development opportunities and supportive leaders
• Vibrant and inclusive culture with impact on clients and communities
• Range of career opportunities and benefits to enhance well‑being

Marsh McLennan is committed to embracing 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, veteran status (including protected veterans), or any other characteristic protected by applicable law.

If you have a need that requires accommodation, please let us know by contacting rea

All Marsh McLennan 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.