Senior HR Manager -ER Casework, 1 year FTC in London

We are seeking a talented individual with strong Employee Relations experience to join our Marsh UK HR Regional Advisor team. This is a hybrid role that requires working at least three days per week in our London office. This is a fixed‑term contract for a period of 12 months.

Responsibilities

• Under the guidance of the Lead HR Manager, independently manage Employee Relations cases from start to finish, including investigations, performance improvement, disciplinary hearings, grievances, sickness absence, probation, harassment/discrimination, appeals and TUPE transfers.
• Advise, coach and support UK People Managers across the full range of HR activities, including communications, change management and organisational effectiveness.
• During organisational restructuring activities, coordinate necessary support for People Managers and affected colleagues, including planning and execution of consultations with colleagues about changes affecting roles or terms of employment.
• Draft and issue formal documentation, including invitation letters, scripts, meeting notes, outcome letters and settlement agreements.
• Peer review written documentation for the HR Manager team.
• Collaborate closely with CoE teams such as Employee Relations, HR Services, Benefits, Total Reward and DEI, and with People Partner colleagues.
• Support and, when required, lead the rollout and delivery of HR programmes in‑region and contribute to process improvements.
• Ensure that regulatory and statutory obligations are discharged locally, including statutory and/or regulatory reporting requirements.
• Support peers and less experienced HR Managers to deliver a consistent, high‑quality service across all locations for which the team is responsible.

Qualifications

• Significant relevant experience managing complex Employee Relations cases from start to finish, including investigations and administration of hearings, especially grievances and disciplinaries.
• Demonstrated ability to coach People Managers effectively at every level, including senior executives with varying complexity.
• Exceptional writing, communication and presentation skills with strong attention to detail.
• Thorough understanding of UK employment laws, regulations and HR processes.
• Excellent interpersonal skills with the ability to forge strong relationships with colleagues in the business and in wider HR, including CoEs and People Partners.

What makes you stand out

• CIPD qualified.
• Strong experience in managing complex ER cases and TUPE transfers.
• Demonstrated passion for regular self‑investment to maintain up‑to‑date professional knowledge and competence.

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 an 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.

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 Marsh 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.