Air Conditioning Engineer – VRF/Heat Pump Expert (Nationwide Travel)

Sigma Retail Group; Castleford; On-site; GBP 36,000 - 48,000; Full time

Benefits offered by this job

Birthday leave

Hybrid working

Cycle to Work

Health shield

Job summary

Sigma Group in the UK is seeking an experienced Air Conditioning Engineer to join our Mechanical & Electrical team in Castleford, with nationwide travel. You will install, service, fault‑find and commission air conditioning and heat pump systems across commercial and live retail environments, working to high safety and quality standards.

The role requires strong technical capability, independent work ethic and excellent communication as you partner with project teams, clients and suppliers

Qualifications

• Proven experience installing, servicing and fault‑finding commercial air conditioning and heat pump systems.
• Experience with Mitsubishi Electric and Daikin equipment.
• Knowledge of refrigeration pipework, brazing, pressure testing, evacuation, charging, recovery and leak detection.
• Experience commissioning VRF/VRV systems and using manufacturer diagnostic tools.
• Ability to interpret technical drawings, wiring diagrams, specifications and fault codes.
• Understanding of construction health and safety requirements, permits, RAMS and safe isolation procedures.
• Experience completing technical reports and service documentation accurately.
• Ability to work independently and manage workload.

Responsibilities

• Install, replace and commission split, multi‑split, VRF/VRV, packaged air conditioning and air source heat pump systems.
• Carry out planned preventative maintenance and reactive repairs on commercial air conditioning equipment.
• Diagnose and repair mechanical, refrigeration, electrical and control system faults.
• Complete brazing, pressure testing, evacuation, refrigerant charging, recovery and leak detection activities.
• Commission systems in accordance with manufacturer requirements and project specifications.
• Complete service reports, commissioning records, F‑Gas documentation and photographic records accurately and on time.
• Ensure all work is carried out in accordance with health and safety legislation, company procedures, RAMS and client requirements.
• Coordinate with project teams, clients, suppliers and subcontractors to ensure efficient project delivery.
• Support client demonstrations and provide clear operational guidance during handover.
• Identify and communicate technical issues, variations and additional works promptly.
• Maintain high standards of housekeeping, customer service and professionalism in live operational environments.

Skills

Fault finding

Communication

Safety compliance

Planning & organisation

Attention to detail

Independent work

Customer-facing

National travel

Continuous learning

Education

F‑Gas Cat 1

Level 2/3 in Refrigeration & AC

CSCS or ECS

Full UK Driving Licence

Electrical BS7671 awareness

Manufacturer training/AC commissioning

Brazing qualification

IPAF/PASMA/First Aid

Tools

Mitsubishi Electric equipment

Daikin equipment

Diagnostic tools

VRF/VRV systems

Job description

Sigma Group in the UK is seeking an experienced Air Conditioning Engineer to join our Mechanical & Electrical team in Castleford, with nationwide travel. You will install, service, fault‑find and commission air conditioning and heat pump systems across commercial and live retail environments, working to high safety and quality standards.

The role requires strong technical capability, independent work ethic and excellent communication as you partner with project teams, clients and suppliers