Senior HR Advisor /Junior HR Manager - Part-Time

  • Hays
  • Milton Keynes, Buckinghamshire
  • 28/04/2026
Full time Construction Management Architect and Design

Job Description

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
If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now.
If this job isn't quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career. #