Commissioning Engineer

Decima International is a professional services company, providing project management and controls services to clients in the United States and the Middle East. Our mission is to become the premier professional services provider across all industry sectors we are engaged in. To accomplish this, Decima International’s founders established a simple yet powerful formula:
Approach each client engagement as a partnership, create an environment that attracts the most talented professionals and allows them to flourish, and regulate growth to maintain excellence in our service standards.
We are seeking an experienced and technically strong Commissioning Engineer to support commissioning, Integrated Systems Testing (IST), and operational readiness activities for a large-scale data center project in KSA. This site-based role requires strong knowledge of mission-critical infrastructure, commissioning execution, system integration, testing documentation, and performance validation across electrical, mechanical, ICT, and compute-related systems.
The ideal candidate will have experience supporting commissioning and IST execution for data center, mission-critical, high-performance computing, industrial, or technically complex facilities. The role requires hands-on experience with commissioning coordination, test execution, issue tracking, GPU/accelerator burn-in, thermal-soak testing, and compute-fabric validation.
You will play a key role in supporting the safe, reliable, and successful transition of the facility from construction completion through commissioning, integrated testing, operational readiness, and handover.
RESPONSIBILITIES
Support commissioning and IST execution activities across mission-critical data center systems, ensuring testing is completed safely, accurately, and in accordance with approved procedures.
Coordinate with commissioning managers, contractors, vendors, OEMs, MEP teams, ICT teams, operations teams, and client representatives during testing and validation activities.
Review and support commissioning plans, method statements, test scripts, IST procedures, checklists, risk assessments, and commissioning schedules.
Support Integrated Systems Testing for electrical, mechanical, controls, ICT, and computer-related systems.
Assist in validating system readiness before commissioning, including documentation review, installation verification, pre-functional checks, and issue closeout.
Support GPU and accelerator burn-in testing, including coordination of test environments, equipment readiness, monitoring requirements, and performance validation.
Support thermal-soak testing activities to validate cooling performance, stability, load response, and environmental control under sustained operating conditions.
Support compute-fabric validation activities, including coordination with ICT, network, hardware, and operations teams to verify connectivity, redundancy, performance, and system integration.
Monitor and document test results, deficiencies, failures, observations, and corrective actions during commissioning and IST activities.
Coordinate with project teams to track and close commissioning issues, punch list items, defects, and non-conformances.
Verify that commissioning activities are aligned with approved drawings, specifications, sequence of operations, operational requirements, and client standards.
Support testing of critical infrastructure, including MV/LV electrical distribution, UPS systems, generators, ATS, switchgear, grounding, cooling systems, CRAH/CRAC units, chilled water systems, BMS, EPMS, fire alarm, ICT, and network infrastructure.
Participate in commissioning meetings, readiness reviews, test coordination sessions, daily briefings, and lessons learned reviews.
Support commissioning documentation, including test records, issue logs, commissioning reports, turnover documentation, and final acceptance records.
Identify commissioning risks, interface issues, access constraints, sequencing gaps, and operational readiness concerns, escalating them to project leadership when required.
Support safe testing practices, including LOTO, Permit-to-Work, energized systems coordination, test boundary control, and emergency response requirements.
Coordinate with operations teams to ensure testing outcomes support handover, system reliability, maintainability, and operational readiness.
Perform other related duties as required and assigned.
QUALIFICATIONS
Required qualifications:
10+ years of experience in commissioning, IST execution, data center operations, MEP systems testing, ICT validation, facility engineering, or mission-critical infrastructure delivery.
Bachelor’s degree in Electrical Engineering, Mechanical Engineering, Electronics Engineering, Computer Engineering, Telecommunications Engineering, or a related technical field.
Experience supporting commissioning activities on data center, mission-critical, high-performance computing, industrial, or technically complex projects.
Hands-on experience supporting Integrated Systems Testing (IST) execution.
Experience supporting or coordinating GPU/accelerator burn-in and thermal-soak testing activities.
Experience supporting compute-fabric validation, ICT infrastructure validation, network readiness, or systems integration testing.
Strong understanding of mission-critical electrical and mechanical systems, including power distribution, UPS, generators, switchgear, ATS, grounding, cooling systems, CRAH/CRAC units, chilled water systems, BMS, EPMS, and related infrastructure.
Ability to review and interpret commissioning plans, test scripts, drawings, specifications, sequence of operations, method statements, inspection records, and technical documentation.
Experience tracking test results, deficiencies, commissioning issues, punch lists, corrective actions, and closeout documentation.
Strong understanding of commissioning safety requirements, including LOTO, Permit-to-Work, energized testing, PPE, isolation procedures, and test boundary control.
Ability to coordinate with contractors, vendors, OEMs, consultants, client representatives, commissioning teams, ICT teams, and operations teams.
Strong analytical and troubleshooting skills with the ability to identify system issues and support practical resolution.
Excellent communication, reporting, and coordination skills.
Strong attention to detail and ability to work in a fast-paced, high-pressure commissioning environment.
Proficiency in Microsoft Office Suite, including Excel, Word, PowerPoint, and Outlook.
Preferred qualifications:
Experience working o