Data Center Commissioning Engineer (Cx)
Job Description
JOYRUN (MALAYSIA) SDN. BHD. is expanding its Data Center Testing & Commissioning team in Malaysia.
We are looking for experienced Data Center Commissioning Engineers (Cx) with hands‑on experience in testing, commissioning, and integrated system testing of mission‑critical facilities.
The successful candidate will participate in Data Center Cx1–Cx5 commissioning activities, working closely with clients, consultants, main contractors, M&E contractors and equipment vendors.
Key Responsibilities
Perform and coordinate Data Center commissioning activities from Cx1 to Cx5
Review commissioning plans, method statements, checklists and test scripts
Conduct equipment and system inspections, pre‑functional testing and functional performance testing
Support FAT, SAT and Site Acceptance Testing
Carry out testing and commissioning of electrical and/or mechanical systems
Participate in Integrated System Testing (IST)
Coordinate with client, consultant, main contractor, subcontractors and equipment vendors
Identify commissioning defects and track issues until closure
Prepare testing records, commissioning reports and final documentation
Support troubleshooting and technical problem‑solving during commissioning
Ensure all commissioning activities comply with project specifications, safety requirements and relevant standards
Electrical Experience Preferred
- MV / LV Switchgear
- Transformers
- UPS Systems
- Battery Systems
- Generator Systems
- ATS / STS
- Busduct / Busway
- PDU / RPP
- Protection Relay Testing
- Cable Testing
- Load Bank Testing
- BMS / EPMS
Mechanical Experience Preferred
- Cooling Towers
- CRAH / CRAC
- Chilled Water Systems
- Pumps
- AHU / FCU
- HVAC Control Systems
- BMS
- Cooling System Functional Testing
Requirements
Diploma or Degree in Electrical, Mechanical or related Engineering discipline
Minimum 3 years of engineering / testing & commissioning experience
Data Center commissioning experience is strongly preferred
Familiar with Cx1, Cx2, Cx3, Cx4 and Cx5 commissioning processes
Able to read electrical single‑line diagrams, M&E drawings and technical specifications
Good troubleshooting and problem‑solving skills
Able to prepare testing reports and commissioning documentation
Willing to work at project sites and travel within Malaysia
Able to work independently and coordinate with multiple project stakeholders
Good communication skills in English
Mandarin‑speaking candidates will have an advantage due to coordination with regional project teams
Preferred Experience
Candidates who have participated in hyperscale or large‑scale Data Center projects involving:
- Cx3 Equipment Testing
- Cx4 Functional Performance Testing
- Cx5 Integrated System Testing (IST)
- Load Bank Testing
- Electrical System Failure Simulation
- Cooling System Failure Simulation
- Black Building / Power Failure Testing
will be given priority.
What We Offer
Competitive salary based on experience
Data Center project exposure in Malaysia and Southeast Asia
Opportunities to participate in large‑scale mission‑critical projects
Regional career development opportunities
Technical training and project experience with international Data Center clients