Commissioning Engineer - BMS Controls

As our Commissioning Engineer BMS Controls you will be responsible for the testing, validation, and optimisation of Building Management Systems within mission-critical data centre environments.

The role ensures that all mechanical and electrical systems are fully integrated, operate efficiently, and meet client specifications, design intent, and industry standards.

You will play a key role during the commissioning phase, working closely with project teams, contractors, and clients to deliver high-quality, reliable systems.

• Execute Level 1–5 commissioning activities for BMS and controls systems
• Perform point-to-point checks, I/O verification, and functional testing
• Validate sequences of operation for HVAC, cooling systems (CRAC/CRAH), chillers, and AHUs
• Support integrated systems testing (IST) and seasonal testing
• Identify, troubleshoot, and resolve system issues during commissioning

• Ensure correct integration between BMS, EPMS, SCADA, and third-party systems
• Verify communication protocols (BACnet, Modbus, SNMP, etc.)
• Coordinate with controls vendors and MEP contractors

• Review design documents, control schematics, and sequences of operation
• Produce commissioning reports, test scripts, and issue logs
• Track progress and maintain accurate records of completed tests
• Support handover documentation and O&M manuals

• Ensure all systems meet project specifications and industry standards (e.g. ASHRAE, ISO)
• Follow commissioning plans and QA/QC procedures
• Participate in FAT (Factory Acceptance Testing) and SAT (Site Acceptance Testing)

• Attend site meetings and coordinate with project stakeholders
• Provide technical support to clients during commissioning and handover
• Assist in training client operations teams

• Strong knowledge of BMS platforms (e.g. Siemens, Schneider Electric, Johnson Controls, Honeywell)
• Understanding of HVAC systems and data centre cooling infrastructure
• Familiarity with data centre standards and critical environments
• Experience with control systems, sensors, actuators, and field devices
• Knowledge of communication protocols (BACnet, Modbus, TCP/IP)

• Degree or diploma in Electrical Engineering, Mechanical Engineering, or related field
• Relevant certifications in BMS or commissioning (preferred)
• At least 3+ years in BMS/controls commissioning or similar role
• Experience working on data centres or other mission-critical facilities preferred
• Exposure to commissioning processes (Level 1–5)
• Strong problem-solving and troubleshooting ability
• Excellent communication and teamwork skills
• Ability to work under pressure in fast-paced environments
• Detail-oriented with a focus on quality

• Experience with Integrated Systems Testing (IST)
• Knowledge of energy efficiency and optimisation strategies
• Previous work on hyperscale data centre projects

This role is based in the UK (West London) and ideally you will be based within a 1 hour commute time.