Senior Account Specialist

We are seeking a talented individual to join our North America Career Products Account Management team at Mercer. This role will be based in Warsaw. This is a hybrid role that has a requirement of working at least three days a week in the office.

As a Senior Account Specialist, you will be part of a team managing a book of about 1000 clients, many of whom are multinational companies subscribing to our global data offerings. You will play a key role in client servicing, supporting Dedicated Account Managers, and ensuring smooth client communication and account management.

We will count on you to:

• Respond to client inquiries through the shared Client Engagement mailbox and handle all components of servicing client accounts
• Ensure timely submission and resolution of platform access requests
• Support sales and contract renewal tasks such as creating quotes, drafting contracts for review and preparing supplementary materials as needed
• Maintain accurate records by entering opportunities and contract updates into MPower, our CRM tool, and conducting regular audits for data accuracy
• Assist with the invoicing process including initial review, coordination with billing team, and client communication
• Support Dedicated Account Managers and clients during the participation process; including user management, client trainings on our tools, meeting preparation, reminders, and audit assistance
• Communicate directly with clients mainly via email and occasionally by phone, supporting the sales and renewal process without direct selling responsibilities

What you need to have:

• Bachelor's degree required; Master's preferred
• 1-2 years of relevant experience
• Strong communication skills and highly organized
• Ability to thrive in a fast-paced environment
• Interest in client-facing roles
• Strong English proficiency for interaction with North American clients

What makes you stand out:

• Experience working in client servicing or account coordination roles
• Familiarity with CRM systems and sales support tools
• Flexibility to work flex shifts (e.g., 10 AM–6 PM or 11 AM–7 PM) to accommodate time zone differences

Why join our team:

• We help you be your best through professional development opportunities, interesting work and supportive leaders.
• We foster a vibrant and inclusive culture where you can work with talented colleagues to create new solutions and have impact for colleagues, clients and communities.
• Our scale enables us to provide a range of career opportunities, as well as benefits and rewards to enhance your well-being.

If you would like to apply for this position, please send your CV in English.

Mercer, a business of Marsh McLennan (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. Marsh McLennan is a global leader in risk, strategy and people, advising clients in 130 countries across four businesses: Marsh, Guy Carpenter, Mercer and Oliver Wyman. With annual revenue of $24 billion and more than 90,000 colleagues, Marsh McLennan helps build the confidence to thrive through the power of perspective. For more information, visit , or follow on LinkedIn and X.

Marsh McLennan 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 McLennan 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 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.