Role Overview We are seeking an experienced Refrigeration & Air Conditioning Engineer to join our Workplace Management Engineering team as a Subject Matter Expert (SME) and technical coordinator. This is an off-the-tools management role focused on overseeing the performance, compliance, and lifecycle management of all refrigeration and air conditioning systems across our UK portfolio. As the technical specialist for chillers, CRAC units, split systems, FCUs, and AHUs, you will manage maintenance programs, ensure regulatory compliance through F-Gas register management, coordinate contractors and specialist service providers, and provide expert technical guidance to site teams and stakeholders. While this is primarily a supervisory and coordination role, you will provide hands-on support during emergency situations when required. You will act as the Main Point of Contact (MPOC) for all matters relating to refrigeration and air conditioning systems, ensuring optimal system performance, planned maintenance delivery, and swift resolution of technical issues across the portfolio. Key Responsibilities Technical Oversight & SME Support Act as the Subject Matter Expert (SME) for all refrigeration and air conditioning systems including chillers, CRAC units, split systems, FCUs, and AHUs Provide technical guidance and expert advice to site engineering teams, contractors, and stakeholders Review technical reports, conduct root cause analysis, and recommend solutions for recurring or complex system issues Monitor system performance data and identify trends, inefficiencies, or potential failures Provide hands-on technical support during emergency breakdown situations when specialist intervention is required Support commissioning and handover of new or upgraded systems Compliance & F-Gas Management Manage and maintain the F-Gas register in full compliance with UK and EU F-Gas regulations Ensure all refrigeration and air conditioning systems meet statutory requirements and environmental standards Coordinate and record leak checks, refrigerant top-ups, system maintenance, and decommissioning activities in accordance with legislative requirements Conduct compliance audits and maintain up-to-date records for regulatory inspections Ensure contractors hold valid F-Gas certifications and work in accordance with legal obligations Planned Preventative Maintenance (PPM) Management Oversee the planning, scheduling, and delivery of PPM programs for all refrigeration and AC systems across the UK portfolio Ensure PPMs are completed on time, to specification, and in line with manufacturer recommendations and compliance requirements Monitor contractor performance during planned maintenance activities and ensure quality standards are consistently met Review and update PPM schedules based on system performance, lifecycle stage, and operational requirements Identify and escalate any deviations from planned schedules or quality concerns Lifecycle Management & Repairs Manage the lifecycle of refrigeration and air conditioning assets, including maintenance strategies, repair planning, and replacement recommendations Coordinate and oversee reactive and planned repair works, ensuring minimal disruption to building operations Work with procurement and engineering management to develop capital expenditure plans and system upgrade projects Maintain comprehensive asset registers, condition assessments, and maintenance histories to support long-term planning Provide technical input into business cases for system upgrades, replacements, or efficiency improvements Contractor & Specialist Management Act as the Main Point of Contact (MPOC) for specialist contractors and service providers for all refrigeration and AC-related works Brief contractors on site requirements, safety protocols, technical expectations, and quality standards Monitor contractor performance, SLA compliance, and technical delivery across the portfolio Manage contractor relationships, including performance reviews, issue resolution, and continuous improvement initiatives Ensure all works are completed safely, on time, to budget, and to the required technical standard Coordinate and communicate progress updates to internal stakeholders, clients, and building occupants as required Site Visits & Multi-Site Support Travel to other UK sites on an as-needed basis to support emergency breakdowns, technical assessments, contractor briefings, or commissioning activities Provide remote technical guidance, troubleshooting support, and expert advice to site-based teams Build strong working relationships with site engineering teams, facilities managers, and local personnel Conduct site inspections and audits to ensure system performance and compliance standards are maintained Documentation & Reporting Maintain accurate technical records, including system specifications, service reports, fault logs, and compliance documentation Prepare performance reports, trend analysis, and recommendations for senior management Develop and maintain standard operating procedures (SOPs) and technical guidance documents Ensure all documentation is up to date and accessible for audits, inspections, and operational needs Qualifications & Experience Essential NVQ Level 3 in Refrigeration & Air Conditioning or equivalent technical qualification F-Gas Category 1 certification (handling all types of refrigerants) Proven experience managing refrigeration and air conditioning systems including chillers, CRAC units, split systems, FCUs, and AHUs Strong understanding of F-Gas regulations, compliance requirements, and environmental legislation Demonstrable experience managing PPM programs and coordinating reactive maintenance across multiple sites Experience managing and coordinating specialist contractors and service providers Excellent technical knowledge with the ability to provide expert advice and guidance Full UK driving license Desirable Experience working in a workplace management or facilities management environment Knowledge of Building Management Systems (BMS) and integration with HVAC systems IOSH or NEBOSH health and safety qualification HNC/HND in Building Services Engineering or related discipline Experience using CAFM systems or maintenance management software Previous experience in a technical coordination or SME role Skills & Competencies Strong technical expertise in refrigeration and air conditioning systems with the ability to provide SME-level guidance Excellent organizational and coordination skills with the ability to manage multiple sites and priorities Strong contractor and stakeholder management skills with a focus on performance and quality Clear and effective communication skills, both written and verbal, with the ability to explain technical issues to non-technical audiences Proactive approach to maintenance planning, risk mitigation, and continuous improvement Analytical mindset with strong problem-solving and decision-making capabilities Customer-focused approach with strong relationship-building skills Ability to work independently and provide technical leadership to site teams Commitment to health, safety, and environmental best practices Flexibility to respond to emergency situations and travel to other UK sites when required
Refrigeration & Air Conditioning Supervisor in London employer: JLL
At JLL, we pride ourselves on being an exceptional employer, offering a dynamic work culture that fosters collaboration and innovation. Our EMEA Small Works Program Lead role not only provides opportunities for professional growth through diverse project exposure but also ensures a supportive environment where governance and risk management are prioritised. With a commitment to employee development and a focus on meaningful contributions, JLL stands out as a rewarding place to advance your career in facilities management.
