Overview Leisure Energy is an award-winning renewable technology company, consultancy, principal contractor and aftercare provider specialising in decarbonisation of leisure centres and swimming pools. Our mission is to lead the transition to net zero carbon leisure facilities. We currently employ 26FTE and have a turnover over £12M. Due to our recent success, with a strong forward order book and set out in our Strategic Plan we anticipate significant growth over the next three to five years so are seeking a Commissioning Engineer to join our ambitious, highly talented and committed team. The HVAC Commissioning Engineer will support national installations (including our Net Zero Pod) and ensure systems operate safely, efficiently, and in accordance with performance expectations. Reporting to the Technical Director and working alongside mechanical, electrical and controls specialists, responsibilities will include: Commissioning Responsibilities Commission and performance-test commercial air-to-water heat pump systems and associated plant. Manage and coordinate contractors that will pre-commission, balance and optimise heating, hydraulic, and ventilation systems. Coordinate and manage the Integration of the new low carbon technologies and ensure the new interfaces with BMS / controls platforms. Verify and witness system safety, flowrates, temperatures, pressures, sequencing and operating logic. Conduct functional testing, witness testing and client demonstrations. Troubleshoot system issues and implement corrective actions. Produce commissioning plans, check sheets and sign-off documentation. Support handover, training and post-occupancy optimisation. Provide support and attendance where required to aftercare if post-handover issues arise. Project and Team Interaction Work with design, installation, and project managers throughout delivery. Prepare the system for handover to the aftercare team. Review installation quality before commissioning. Provide technical feedback and continuous improvement input. Liaise with manufacturers and controls integrators. Represent the company professionally on client sites. Essential Minimum 4 years commissioning experience in HVAC or related discipline. Background in Mechanical, Electrical, BMS/Controls, or Refrigeration. Strong understanding of commercial heating/hydraulic systems. Ability to interpret schematics, wiring diagrams and control sequences. Strong diagnostic and problem-solving skills. Excellent communication and client-facing confidence. Competent with MS Office and reporting documentation. Full UK driving licence. Desirable Experience with commercial heat pump systems. Knowledge of leisure centres, swimming pools or large-scale HVAC. F-Gas category certification (not mandatory if non-refrigeration route). Controls integration experience (Trend, Siemens, Schneider, etc.). Health & Safety knowledge or qualifications (e.g., IOSH, SMSTS). Experience supporting client relationships and site teams. This position will suit an experienced commissioning engineer with strong technical competence in commercial HVAC systems, particularly air-to-water heat pumps, low-carbon plant, and integrated building services. The ideal candidate will take pride in delivering high-performance systems, optimised operation, and client satisfaction within a growing and mission-driven organisation. Location: Hybrid working arrangements between home and the Leisure Energy Technology Centre in Worcestershire with some site visits across the UK. Leisure Energy Values & Behaviours We are seeking a highly motivated individual who will embody our core values. Quality Continuous improvement through development & standards to build an innovative reputation. Teamwork Communication with accountability, honesty, trust and respect leading to a shared vision. Innovation Continuing forward thinking to improve the solution, ensuring our USP, remains a USP. Accountability Taking responsibility in everything we do and continuously learning. Boldness Delivering innovation with confidence. Trust Through performance and competence. Integrity Holding ourselves to the highest standards and ensuring the best practice. Honesty Delivering a true and consistent message from concept to operation. Benefits: 5% Employer Pension Contribution through the Leisure Energy workplace pension scheme. 28 days holiday Bank Holidays. Supported Continued Professional Development. Annual appraisal and salary review Following successful completion of a 6-month probation period: Private Health Care for employee and dependents (currently provided by Vitality). Cycle-to-work scheme. Salary sacrifice company car scheme. Purchase / Sale of Annual leave (up to a maximum 5 days per annum).