A quality-focused HVAC and mechanical services contractor with a strong and growing portfolio of long-term public sector contracts across South and West Wales. Clients include local authorities, major universities, national FM contractors, and national heritage bodies. The business has built its reputation on technical excellence and the professionalism of its engineers — and that's exactly who they want to attract. The Role A permanent opportunity for an experienced Service and Maintenance Engineer to join a small, skilled team delivering planned and reactive HVAC maintenance across a varied portfolio of commercial and public sector sites throughout South Wales and the wider region. You'll be responsible for: * Planned preventative maintenance (PPM) across commercial HVAC systems — splits, VRVs, VRFs, chillers, ventilation * Reactive breakdown attendance and fault diagnosis * First-time fix where possible, with a methodical and thorough approach * Digital completion of service sheets, F-Gas records, and commissioning documentation * Maintaining a professional, client-facing manner across all site visits Site types include schools, offices, leisure centres, local authority properties, university campuses, and heritage sites. Hours are flexible to site access requirements. What We're Looking For * Minimum 3 years' commercial HVAC service and maintenance experience * Strong fau...