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Salary
≈ $54k – $124k per year (Estimated)
Location
Hybrid (London, United Kingdom)
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 27, 2026. First seen by Alion on Sep 18, 2026. Marsh McLennan scores B on the Alion truth index.

Overview
Company
Impact
Profile match
Marsh McLennan is a global professional services firm in risk, strategy and people, headquartered in New York and listed on the New York Stock Exchange. It operates through four businesses, Marsh in insurance broking, Guy Carpenter in reinsurance, Mercer in health, wealth and benefits consulting and Oliver Wyman in management consulting, with about 90,000 colleagues in some 130 countries. It hires catastrophe risk analysts, reinsurance brokers, benefits consultants, sales executives, paralegals, software engineers and IT support staff in hubs such as London, Cluj-Napoca and Mexico City.

Company:

Mercer

Description:

We are seeking a talented Client Account Manager to join our Darwin team. Based in London this is a hybrid role that has a requirement of working at least three days a week in the office.

This role would suit an organised and passionate Account Manager from a Software as a Service (SaaS) / Tech industry background. Managing or supporting on a portfolio of domestic and international clients of our market leading employee benefits enrolment platform. Responsible for understanding client objectives and bringing together software development, broking and employee benefit consulting teams to manage benefit offering changes and keep clients engaged.

We will count on you to:

  • Work with Lead Account Managers and Delivery teams to develop trusted client relationships across a portfolio of Global / National clients to understand business objectives
  • Proactively project / change manage system enhancements by liaising with configurators, integration engineers and benefit consultants and keep clients updated
  • Provide excellent customer service to successfully retain a portfolio of clients through contract renewals whilst maintaining profitability
  • Support marketing events and communications ensuring our clients are invited to events and webinars and are sent relevant thought leadership content
  • Facilitate revenue growth in your client base of existing business through careful planning and consistent execution

What you need to have:

  • Proven experience as an Account Manager, preferably in the Software as a Service (SaaS) or Tech industry.
  • The ability to quickly build trust with clients and internal stakeholders though empathy and approachability
  • Strong organisation and communications skills, with proven experience of project / change management
  • Resilient, with a positive outlook and the ability to lead by example to get things done
  • Ambitious, driven and self-motivated to achieve targets and KPI’s
  • Commercially minded and able to ensure the client sees maximum value for their investment in Darwin

What makes you stand out:

  • Positivity and self-confidence with well-developed presentation skills
  • Experience with owning a portfolio of B2B accounts, ideally in a technology / SaaS environment
  • An understanding of employee benefits and the wider benefits ecosystem

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.

Darwin is part of Marsh. This affords us a massive opportunity to impact the lives of tens of millions of people around the world. Darwin is changing benefits for good in seven out of the top ten technology companies in the world and has a wealth of clients across a diverse range of sectors. In fact, more than 2 million people are already using our platform.

Marsh (NYSE: MRSH) is a global leader in risk, reinsurance and capital, people and investments, and management consulting, advising clients in 130 countries. With annual revenue of over $27 billion and more than 95,000 colleagues, Marsh helps build the confidence to thrive through the power of perspective. For more information, visit marsh.com, or follow us on LinkedIn and X.Marsh 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, civil partnership status, disability, ethnic origin, family duties, gender orientation or expression, gender reassignment, 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. We are an equal opportunities employer. We are committed to providing reasonable adjustments in accordance with applicable law to any candidate with a disability to allow them to fully participate in the recruitment process. If you have a disability that may require reasonable adjustments, please contact us at [email protected] 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 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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