Help Deliver Some of Australia's most critical infrastructure
We are seeking a Commissioning Engineer to join our team and support the delivery of major data centre projects across Sydney.
Working alongside experienced Lead Commissioning Engineers, you'll play a hands-on role testing, validating and commissioning critical BMS, cooling and power systems before they go live.
This role will suit an engineer who enjoys problem-solving, working through structured test procedures and delivering high-quality outcomes through attention to detail.
What you will do:
Deliver BMS commissioning activities across L1-L5 commissioning phases
Execute L4 Functional Testing and L5 Integrated Systems Testing (IST)
Complete point-to-point testing of CRAHs, CDUs, FWUs, AHUs and chilled water systems
Verify field instrumentation and BMS interfaces to UPS, generators, switchboards, PDUs, chillers and power metering systems
Validate control sequences, alarms, trends, graphics and failover functionality
Troubleshoot commissioning issues and support defect resolution
Complete commissioning records, test sheets, defect close-out and handover documentation
Work closely with project teams, subcontractors and clients to ensure successful project delivery
About You
We're looking for someone who combines technical capability with a methodical, detail-focused approach to commissioning and testing.
Degree in Electrical, Mechatronics or Automation Engineering
Experience with BMS, controls, automation or commissioning activities
Strong troubleshooting and fault-finding capability
Ability to follow test procedures and commissioning plans accurately
Strong attention to detail and documentation skills
Experience interpreting electrical drawings and technical documentation
Exposure to PLC, Ignition SCADA, BMS or EMS platforms
Strong communication skills and ability to work with multiple stakeholders
Willingness to work across Sydney project sites
Highly Regarded
Data centre or critical infrastructure experience
Schneider, Siemens, Honeywell or similar BMS platforms
Experience with HVAC, chilled water or critical cooling systems
Exposure to L4/L5 commissioning and Integrated Systems Testing (IST)
Why Join Crossmuller?
Work on some of Australia's largest and most advanced data centre projects
Build sought-after experience in critical infrastructure commissioning
Diverse and technically challenging project work
Career growth opportunities across Crossmuller and Borg Group
Long-term job security with a growing Australian business
Supportive team culture and ongoing professional development
Apply Now
If you're a practical, detail-oriented engineer who enjoys troubleshooting systems, following structured testing processes and delivering quality outcomes, we'd love to hear from you.