What does a BMS Commissioning Engineer do?
A BMS Commissioning Engineer is responsible for bringing a Building Management System (BMS) to life — configuring software, testing control strategies, validating performance, and ensuring the system operates exactly as designed.
Commissioning engineers sit at the critical intersection of controls, software, mechanical systems, and real-world building performance.
Core responsibilities
- Configure BMS software and control logic
- Commission HVAC, plant and field devices
- Test points, sequences, alarms and graphics
- Validate operation against design intent
- Resolve faults and commissioning issues
- Optimise system performance and stability
- Produce commissioning documentation and handover packs
Where commissioning fits in a BMS project
Commissioning typically takes place after installation but before final handover. It is the phase where the system is tested in real operating conditions and tuned for performance.
- Controls panels and devices are installed
- Software and databases are built
- Commissioning engineers test and validate the system
- Issues are resolved before client acceptance
- The building is handed over fully operational
Skills required
- Strong understanding of HVAC systems
- Experience with BMS software and databases
- Logical troubleshooting and fault finding
- Understanding of control strategies and sequences
- Networking fundamentals (IP, BACnet, Modbus)
- Clear documentation and communication skills
Common BMS platforms commissioned
- Trend Controls
- Tridium Niagara (N4)
- Siemens Desigo
- Schneider EcoStruxure
- Honeywell BMS platforms
- Delta, Distech, Alerton and others
BMS Engineer vs BMS Commissioning Engineer
While the titles are sometimes used interchangeably, a BMS Commissioning Engineer typically focuses on the final configuration, testing and optimisation phase, whereas a BMS Engineer role may include installation, maintenance, service or project delivery.
On-site vs remote commissioning
Modern BMS platforms increasingly support remote commissioning. Engineers may work fully on-site, hybrid, or remotely depending on project scope, system architecture, and client requirements.
Career progression
- Senior or Lead Commissioning Engineer
- BMS Project Engineer or Project Manager
- Controls Design Engineer
- Smart Buildings or Energy Optimisation Specialist
- Technical Consultant or Systems Architect
Why BMS commissioning engineers are critical
Poor commissioning leads to energy waste, comfort issues and system instability. A skilled commissioning engineer ensures that the building performs as designed, delivering efficiency, reliability and long-term value.