Sr. Commissioning Mechanical Engineer

2 weeks ago

Riyadh, Saudi Arabia CSI Global Full time

**Job Title**:Sr. 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 an experienced **Sr. Commissioning Mechanical Engineer** who will lead end-to-end commissioning of mechanical building systems, **HVAC, chilled water, plumbing, and fire protection,**so the asset reaches **safe, code-compliant, verifiably performing** handover (FAC) on time and with complete documentation.

**Key Responsibilities**:

- Plan and run the Cx program (lots, sequences, windows) aligned to the construction master schedule; maintain a live **_Commissioning Activity Tracker (CAT)_**, punch lists, and risk register.
- Prepare/review **_ITPs, pre-functional checklists (PFCs)_**, method statements, and test packs; execute FPT / SAT / IST and close Consultant comments to final acceptance.
- **_ Commission Core Systems_**:

- **_ HVAC & CW/CHW:_** AHUs/FAHUs/FCUs, pumps, valves, coils, heat exchangers, VAVs, dampers; hydronic flushing/cleaning, water quality, flow balancing, TAB and thermal performance verification.
- ** Ventilation/Smoke Control**: pressurization fans, stairwell/lobby pressurization, car park ventilation, CO systems.
- ** Plumbing & Drainage**: pressure tests, chlorination/disinfection, functional tests (H/W mixing, PRVs, transfer pumps).
- ** Fire Protection**: hydrostatic tests, pump performance curves, jockey sequencing, alarm/interlock checks, FA / BMS integration.
- Validate controls and **_BMS interfaces_** (points mapping, sequences of operation, alarms/safeties) and participate in Integrated Systems Testing with FA/ELV.
- Coordinate daily with GC/Subs/Vendors/Consultant on prerequisites, access/permit-to-work, and energization/commissioning windows.
- Produce **_O&M manuals, training materials_**, spares lists, warranties; deliver client training and signoffs.
- Drive regular progress/technical/**_Cx meetings_**; surface risks early and execute recovery plans.

**Required Qualifications**:

- **_5-8 years_** of mechanical testing & commissioning on mid-to-large projects (healthcare, airports, data centers, high-rise, industrial).
- BSc in **_Mechanical Engineering_** (or equivalent).
- Hands-on with **TAB**, hydronic balancing, ventilation balancing, pressure/leak tests, chlorination, smoke control performance tests, pump curves, equipment functional tests, and IST participation.
- Strong documentation discipline (**_ITPs, PFCs, test packs, SAT/IST reports, certificates_**; red-lines/as-builts).
- Working knowledge of codes/standards (**_ASHRAE, SMACNA/DW144, NFPA, IPC, CIBSE, ISO_**) and safety/permit processes.

**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.
- Experience with acoustic/vibration tests and thermal imaging for envelope/HVAC diagnostics.

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