Commissioning Mechanical Engineer

CSI Global; Riyadh; On-site; SAR 180,000 - 300,000; Full time

Job summary

A leading engineering services provider seeks a Commissioning Mechanical Engineer in Riyadh. The role involves executing the commissioning of HVAC, Plumbing, and Mechanical Building Systems on complex projects. The ideal candidate should have 5–8 years of experience in mechanical testing and commissioning, with proficiency in TAB and standards literacy such as SBC and ASHRAE. Candidates familiar with data loggers and functional tests are preferred. This position offers a full-time, on-site opportunity in a dynamic environment.

Qualifications

• 5–8 years of mechanical testing & commissioning on mid-to-large projects.
• Experience with TAB, pressure/leak tests, and smoke control checks.
• Competent in equipment functional tests and IST participation.

Responsibilities

• Execute commissioning of Mechanical Building Systems, HVAC, and Plumbing.
• Perform tests and log measurements according to Method Statements.
• Witness plumbing system commissioning and conduct pressure tests.
• Run/verify ventilation & smoke control tests (stair/lobby pressurization, car-park CO); record pressure/flow/door-force data.
• Witness plumbing system commissioning: hot-water boilers, booster/transfer/irrigation/sump pumps, tanks, heat exchangers; pressure/disinfection tests.
• Monitor pre-commissioning readiness: flushing/cleaning, water quality, pressure tests, filter/coil hygiene, fire damper drop checks.
• Execute CRAC/IT room load/heat tests, capture trends and acceptance criteria.
• Participate in BMS point-to-point/sequence checks; verify alarms/safeties and support IST with Fire Alarm/ELV/Electrical.
• Prepare evidence packs and invite Consultant/Client for witnessing; assist with cause-and-effect verification and close-out.
• Contribute to O&M/training inputs and red-line/as-built updates; submit weekly status to the Commissioning Manager.

Skills

Mechanical testing & commissioning

Hands-on TAB

Standards literacy

Competent with meters/loggers

data logger & trend analysis

IST participation

BMS point-to-point checks

Fire Alarm/ELV integration

Tools

Data loggers

Anemometer

Manometer

Job description

Job Title: Commissioning Mechanical Engineer

Location: Riyadh / KSA

Employment Type: Full-Time | On-Site

About CSI Global:

At CSI Global, we specialize in delivering advanced electromechanical, testing, and commissioning services across the GCC and Globally. We power infrastructure through technical excellence and engineering innovation. Join a team committed to shaping the future of transmission and energy systems in the region.

Position Overview:

We are seeking Commissioning Mechanical Engineer who will execute commissioning of Mechanical Building Systems, HVAC, Chilled Water, Plumbing, and Fire Protection Systems on complex projects to achieve safe, SBC/ASHRAE-Compliant, on-schedule handover with complete and auditable records.

Key Responsibilities:

• Perform tests per approved Method Statements / ITPs / Test Packs (pre-functional & functional); log measurements precisely and keep punch/defect lists current.
• Commission HVAC equipment & networks: AHU/FAHU/FCU, fans, pumps, chillers, cooling towers, heat exchangers, CHW/condensing water loops, valves/actuators/controls.
• Support TAB activities: chilled-water hydronic balancing, air balancing for AHUs/FCUs/extracts; verify coil ΔT/flow, damper positions, and leakage classes.
• Run/verify ventilation & smoke control tests (stair/lobby pressurization, car-park CO); record pressure/flow/door-force data.
• Witness plumbing system commissioning: hot-water boilers, booster/transfer/irrigation/sump pumps, tanks, heat exchangers; pressure/disinfection tests.
• Monitor pre-commissioning readiness: flushing/cleaning, water quality, pressure tests, filter/coil hygiene, fire damper drop checks.
• Execute CRAC/IT room load/heat tests, capture trends and acceptance criteria.
• Participate in BMS point-to-point/sequence checks; verify alarms/safeties and support IST with Fire Alarm/ELV/Electrical.
• Prepare evidence packs and invite Consultant/Client for witnessing; assist with cause-and-effect verification and close-out.
• Contribute to O&M/training inputs and red-line/as-built updates; submit weekly status to the Commissioning Manager.

Required Qualifications:

• 5–8 years of mechanical testing & commissioning on mid-to-large projects (healthcare, data centers, airports, high-rise or industrial).
• Hands-on TAB (water/air), pressure/leak/chlorination tests, smoke control checks, equipment functional tests; IST participation.
• Standards literacy: SBC, ASHRAE, SMACNA/DW144, NFPA, IPC/CIBSE basics; HSE awareness (PTW/LOTO).
• Competent with meters/loggers (DP/flow/temperature, anemometer, manometer, data logger); disciplined reporting.

Preferred Qualifications:

• Complex facilities commissioning (Tier-III/IV DCs, hospitals, labs) and authority/third-party approvals (e.g., Civil Defense / House of Expertise in KSA).
• Controls/BMS exposure (Siemens/JCI/Honeywell/etc.), data loggers, trend analysis, and Power BI/advanced Excel for trackers.