Summary
Dar Al Riyadh is seeking a Senior Mechanical Engineer for its technical office in Riyadh. The role leads reviews of mechanical engineering packages for irrigation, pumping, HVAC, plumbing, drainage and fire-protection systems, and coordinates technical interfaces across disciplines. Duties include reviewing models, drawings, equipment submittals, contractor RFIs, commissioning plans and handover records, and advising the Project Manager on technical risks. Applicants must have a mechanical engineering bachelor’s degree, at least 20 years of relevant experience, and fluency in written and spoken English.
The posting
As published on daralriyadh.com. Pulled from the employer's site and shown as they wrote it.
Key Responsibilities:
- Lead the technical-office review and coordination of irrigation, pumping, HVAC, plumbing, drainage, fire-protection and other mechanical engineering packages.
- Verify golf-irrigation hydraulic models, including demand distribution, pressure zoning, pipe sizing, friction losses, pump duty points and critical-node pressures.
- Review transient and surge analyses and validate proposed water-hammer protection, air-release, pressure-relief and surge-suppression systems.
- Review and recommend approval of mechanical shop drawings for central pump stations, intake structures, filtration skids, chemical-treatment systems and lake circulation and aeration systems.
- Review clubhouse HVAC calculations and designs, including cooling loads, equipment selection, ventilation, ductwork, chilled-water systems, controls and energy-performance requirements.
- Review plumbing, water-supply, drainage, stormwater and fire-protection drawings, calculations and equipment schedules.
- Evaluate mechanical material and equipment submittals, including high-capacity pumps, VFDs, HDPE piping, motorized valves, chillers, air-handling units, filtration systems and fire pumps.
- Verify equipment performance curves, system operating points, efficiency, redundancy, maintainability, acoustic performance and compliance with approved specifications.
- Review Combined Services Drawings, BIM models and coordinated shop drawings and resolve interfaces with civil, structural, electrical, irrigation and landscape networks.
- Provide technically justified responses to complex contractor RFIs, design deviations, value-engineering proposals and site-related engineering issues.
- Review control philosophies and interfaces among pumps, VFDs, motorized valves, sensors, irrigation controls, BMS, electrical panels and standby-power systems.
- Review Testing, Adjusting and Balancing plans, inspection and test plans, pre-commissioning procedures and integrated mechanical commissioning methodologies.
- Assess field changes and ensure that approved modifications are incorporated into calculations, redline drawings, as-built records and O&M documentation.
- Prepare technical reports and advise the Project Manager on mechanical design risks, noncompliance, outstanding decisions and matters affecting quality, cost, schedule, safety or system performance.
Minimum Requirements:
- Bachelor’s degree in Mechanical Engineering from an accredited and recognized university.
- Minimum 20 years of professional experience in mechanical engineering, technical-office management and design review.
- Demonstrated experience on major infrastructure, pumping-station, building or multidisciplinary development projects.
- Proven experience working for an engineering supervision consultancy, project-management consultancy or design consultant.
- Deep technical expertise in large-scale pressurized hydraulic networks, pumping systems and automated irrigation infrastructure.
- Strong experience reviewing central cooling plants, HVAC, plumbing, drainage and fire-protection systems.
- Demonstrated ability to verify hydraulic models, pump selections, surge analyses and equipment-performance calculations.
- Experience reviewing technical submissions, shop drawings, material submittals, RFIs and contractor design alternatives.
- Advanced proficiency in WaterCAD, EPANET, AutoCAD and Revit MEP.
- Ability to review BIM models and resolve complex multidisciplinary interfaces.
- Strong understanding of mechanical testing, TAB, commissioning and final handover requirements.
- Fluency in written and spoken English is mandatory.