This business is without doubt one of the best in this sector. They specialise in taking projects from enabling works through to the completion of the frame. With focused teams handling remediation, demolition, groundwork, and concrete frame packages, they are well-equipped to handle packages ranging from £5 million to £50 million (or above) each. Their client base includes top-tier developers, main contractors, and direct users, and their sectors of work include residential, commercial, energy, infrastructure, and industrial. They have offices in and around London, with a large proportion of their workload inside the M25. Our client is seeking to expand and grow within its HR function and is looking for a HR manager to provide strategic and operational HR leadership across the group. They are looking for someone that ensures consistent, fair, and compliant people management practices. This role will weigh heavily in complex employee relation matters including trade union engagement. Key tasks for the role: 1. Employee Relations and Union Engagement 2. Employment Law and Policy Compliance 3. Recruitment, Onboarding and Workforce Planning 4. Performance, Development and Engagement 5. HR Data, Systems and Reporting 6. Projects and Organisational Change 7. Leadership, Collaboration and Stakeholder Management In order to be successful in your application candidates must have: * In depth knowledge of UK employment law and HR best practice * CIPD level 5 esssential with CIPD level 7 preferred * Proven experience managing complex employee relations and trade union engagement * Experience in construction, engineering or similar industry advantageous