HR Manager (Part-Time)

Detailed Description From Employer:

Job Title: HR Manager (Part-Time)

Location: Charing Cross, London (fully office-based)
Pay Rate: 24.00- 25.00 per hour
Type: Temporary
Duration: Ongoing (until permanent hire; potential to go permanent)
Start Date: ASAP (handover period required)
Working Hours: Part-time, 24 hours per week (across 3 days - flexible on days)

Overview

We are seeking an experienced and hands-on HR Manager to join a high-performance, fast-paced professional services environment. This is a broad generalist role where you will act as the primary HR contact for the London office, working closely with senior leadership and collaborating with an international HR team. The role combines operational HR delivery with the opportunity to contribute to strategic people initiatives, including recruitment, performance management, employee engagement, and culture. This position is well suited to a confident HR professional who thrives in standalone roles and enjoys working with senior stakeholders.

Key Responsibilities

HR Business Partnering & Leadership Support

• Act as the primary HR contact for the London office
• Provide expert HR advice and support to managers and employees
• Partner closely with senior leadership on both day-to-day and strategic HR matters
• Support initiatives to enhance culture, engagement, and leadership effectiveness
• Contribute to building and maintaining a high-performance culture

Recruitment & Onboarding

• Manage end-to-end recruitment processes (job posting, screening, interview coordination, offers)
• Liaise with external search partners and manage relationships
• Support early careers and campus recruitment initiatives
• Oversee onboarding processes to ensure a smooth and positive employee experience
• Manage onboarding and coordination for incoming interns

Performance & Talent Management

• Support and manage performance review cycles
• Prepare reports and documentation for senior stakeholders
• Assist with talent discussions, promotion readiness, and calibration processes

Employee Relations

• Act as first point of contact for employee relations queries
• Support performance management and probation processes
• Liaise with external legal advisors on complex matters where required

Immigration & Compliance

• Manage visa and sponsorship processes end-to-end
• Ensure compliance with UK employment law and Home Office requirements
• Partner with external advisors on complex cases

HR Operations & Systems

• Maintain accurate HR records and systems
• Prepare contracts, amendments, and employee documentation
• Review and update HR policies and the employee handbook
• Support ongoing improvement of HR processes and systems

Skills & Experience Required

• Proven experience in a standalone or generalist HR role
• Strong stakeholder management skills with the ability to influence senior leaders
• End-to-end HR lifecycle experience (recruitment, ER, performance management)
• Solid knowledge of UK employment law and HR compliance
• Experience managing multiple priorities in fast-paced environments
• High attention to detail and strong organisational skills
• Confident working independently and making decisions
• Strong written and verbal communication skills
• Analytical and solutions-focused mindset

Desirable:

• Experience in professional services, financial services, or similar high-performance environments
• Exposure to visa sponsorship and immigration processes
• Experience working with international teams
• Familiarity with HR systems (eg Personio)
• German language skills (beneficial but not essential)

Adecco acts as an employment agency for permanent recruitment and an employment business for the supply of temporary workers. The Adecco Group UK & Ireland is an Equal Opportunities Employer.

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