Commissioning Engineer

About Decima International

Decima International is a professional services company specializing in project management and controls services for clients in the United States and the Middle East. The company's mission is to be a premier professional services provider across its engaged industry sectors, achieved by approaching each client engagement as a partnership, fostering an environment that attracts and retains talented professionals, and regulating growth to maintain service excellence.

The Role of Commissioning Engineer

Decima International is seeking an experienced and technically proficient Commissioning Engineer to support commissioning, Integrated Systems Testing (IST), and operational readiness activities for a large-scale data center project in Riyadh, KSA. This full-time, 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 successful candidate 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.

Key Responsibilities

• Support commissioning and IST execution 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 align 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 and Experience

• A minimum of 10 years of experience in commissioning.
• Experience supporting commissioning and IST execution for data center, mission-critical, high-performance computing, industrial, or technically complex facilities.
• Hands-on experience with commissioning coordination, test execution, issue tracking, GPU/accelerator burn-in, thermal-soak testing, and compute-fabric validation.

Work Environment

This is a full-time, site-based position located in Riyadh, KSA, supporting a large-scale data center project.