Senior HR Advisor /Junior HR Manager – Part-Time

Milton Keynes, Buckinghamshire
Hays
Part-Time Permanent Junior HR Manager, £40,000-£45,000 Full-Time Equivalent, (£24,000-£27,000 once pro-rata’d)

Exciting opportunity: Permanent Part-Time Senior HR Advisor, Junior HR Manager required to lead and manage all aspects of the HR function for a growing construction business, supporting the continued growth across Operations & Maintenance and project development.You will act as a trusted partner to the UK leadership team and line managers, ensuring compliant, scalable and values-led people practices across the full employee lifecycle. This role blends strategic HR leadership with hands-on operational delivery.Working part-time on a permanent basis, you will enjoy a varied remit from recruitment, onboarding and culture initiatives to employee relations, performance development, and HR operations. You will also maintain a strong and collaborative connection with the Group HR team in Europe.Key ResponsibilitiesHR Business Partnering & Leadership Support

• Provide day-to-day HR guidance, coaching and support to leaders and line managers.
• Build management capability across feedback, people management and conflict resolution.
• Lead performance, development and review cycles, providing practical tools and templates.

Recruitment & Onboarding

• Manage full end-to-end recruitment for UK roles (permanent and contract).
• Design sourcing strategies, interview structures and selection processes.
• Lead consistent and compliant onboarding processes including H&S and culture integration.
• Support the strengthening of the UK employer brand in collaboration with Group HR/Comms.

Employee Relations

• Manage ER cases including capability, conduct, grievance, performance, absence, and redundancy.
• Ensure fair, consistent, well documented processes aligned with UK employment law.
• Maintain up-to-date UK policies, procedures and handbook content aligned to Group principles.

HR Operations & Compliance

• Manage HR administration, including contracts, offers, role changes, and leavers.
• Maintain accurate HR records and ensure GDPR-compliant data handling.
• Coordinate monthly payroll inputs with an outsourced provider, ensuring timely accuracy.
• Oversee UK benefits administration and employee communications.
• Produce HR reporting, data insights and workforce information as needed.

Person SpecificationEssential

• You must have experience as a Senior HR Advisor/ Junior HR Manager who has ideally worked in a standalone HR role in a commercial industry.
• Strong knowledge of UK employment law and HR best practice.
• High levels of integrity, professionalism, and discretion.
• Excellent interpersonal skills and strong communication capability.

Desirable

• CIPD Level 5 or Level 7 (or equivalent professional experience).

3 days per week or 4 or 5 shorter days.

What you need to do now
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