HR Assistant - Mayfair Family Office

HR Assistant (Generalist)

Location: Mayfair, London

Experience: 3–5 years HR/generalist experience

Environment: Dynamic Family Office

Reporting to: Chief of Staff

About the Role

An exciting opportunity to join a fast-paced and dynamic Family Office in Mayfair. This is a broad HR Generalist role offering exposure across the full employee lifecycle, with a strong focus on onboarding, employee relations, HR systems, and HR operations.

You will play a key role in shaping and supporting a high-quality, people-focused function in a discreet and high-performing environment.

Key Responsibilities

• Deliver day-to-day HR operations and support the full employee lifecycle
• Lead onboarding processes, ensuring a seamless and high-touch new starter experience
• Act as first point of contact for HR queries and employee support
• Assist with employee relations cases, documentation, and follow-ups
• Maintain accurate HR records and support HR systems (e.g. Workday)
• Coordinate recruitment activity including interviews and candidate liaison
• Support HR reporting, data accuracy, and basic analytics
• Assist with HR projects, policy updates, and process improvements
• Support performance reviews, training initiatives, and wider HR administration

About You

• 3–5 years’ experience in an HR Assistant or HR Generalist role
• Strong understanding of onboarding, employee relations, and HR processes
• Highly organised with excellent attention to detail
• Confident communicator with strong interpersonal skills
• Proactive, adaptable, and comfortable in a fast-paced environment
• Discreet and professional with the ability to handle sensitive information
• Strong problem-solving and process improvement mindset

Skills

• Strong Microsoft Office skills (especially Excel)
• Experience with HR systems (e.g. Workday or similar)
• Exposure to recruitment and HR administration processes
• Strong knowledge of the employee lifecycle

What’s on Offer

• High-exposure role in a dynamic Family Office environment
• Broad HR generalist responsibility with real ownership
• Opportunity to improve and shape HR processes
• Collaborative, fast-moving, and high-trust culture
• Central Mayfair location