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Associate Director – Building Services (Mechanical)

WSP

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In Saudi Arabia the employer usually arranges the work visa (country practice; the posting doesn’t say).

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In these Gulf countries the employer normally applies for the work visa and residence permit. This is how hiring works there, not an offer written in the posting, and it applies only to these locations.

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About the employer

WSPPosted on the employer’s careers page · emit.fa.ca3.oraclecloud.com

Description (EN)

WSP in the Middle East is currently hiring a Specialist – Mechanical – Metro stations to join our team in Riyadh, Saudi Arabia. The successful candidate will own the end-to-end mechanical station fit-out design for rail/metro/train stations—covering HVAC, environmental control, smoke control/TVS, stairwell/room pressurization, cooling of technical spaces, and integration with BMS/SCADA—through concept, schematic, detailed/IFC, tender, and construction support.  

  • Lead station HVAC & ventilation design (underground, at-grade, elevated): cooling/heating load estimates, plant sizing (chilled water/DX/VRF), AHU/FAHU/FCU selection, filtration strategy (sand/dust), ventilation/pressurization of platforms, concourses, back-of-house and plantrooms. 
  • Engineer smoke control & TVS: fan, shaft and damper sizing/arrangement; platform & concourse smoke layer management; stair & lift lobby pressurization; PSD heat load coordination; emergency modes and control logic. 
  • Technical room cooling & resilience: N+1 redundancy and environmental control for S&T/relay/SCADA/UPS rooms, communications and data spaces; thermal runaway risk checks and alarm set-points. 
  • High-ambient design: equipment derating, coil selections, corrosion mitigation, airside economizer feasibility, sand-ingress protection, acoustic and indoor air-quality criteria. 
  • Digital delivery: Revit/AutoCAD & Navisworks BIM coordination, clash prevention, interface matrices; structured model reviews and info-exchange (BEP compliance). 
  • Calculations & deliverables: Basis-of-Design, detailed calcs, P&IDs/schematics, control sequences, layouts/sections/details, equipment schedules, specifications/BOQs, performance ERs. 
  • Analysis & verification: CFD/FDS for smoke and comfort, SES or equivalent for tunnel/station ventilation where applicable; egress and fire strategy interface workshops. 
  • Approvals & stakeholders: manage KSA authority submissions; lead multidisciplinary design reviews; run value engineering and risk registers. 
  • Construction support: respond to RFIs, review vendor submittals, witness FAT/SAT, support T&C and seasonal commissioning. 
  • Team leadership: mentor engineers/designers; plan workloads, QA/QC deliverables, and contribute to proposals/level-of-effort. 
  • Bachelor’s or Master’s degree in Electrical Engineering. 
  • Professional registration (e.g., CEng/PE) strongly preferred. 
  • 12–18+ years in building services with major rail/metro station HVAC/ventilation delivery in design consultancy; GCC experience strongly preferred. 
  • Proven expertise in: 
  • Station HVAC, ventilation and smoke control/pressurization to NFPA/EN standards. 
  • Cooling of critical technical rooms with resilience (N+1, duty/standby). 
  • Writing control philosophies/sequences and BMS/SCADA integration. 
  • BIM coordination (Revit/Navisworks) and production of IFC-ready deliverables. 
  • Tools: HAP/IES/TRACE (or equivalent), CFD/FDS, SES (or similar), MS Office. 
  • Strong stakeholder skills and the ability to lead workshops with client, operator, and authorities. 

Nice to Have 

  • District cooling interface design; energy modelling/optimization for high-ambient climates. 
  • Experience with tunnel ventilation interactions and evacuation scenarios in multi-station corridors. 
  • Prior approvals experience with Riyadh Civil Defense/SBC. 
  • RAMS familiarity (EN 50126/8/9) and reliability-led design. 

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Riyadh, Saudi ArabiaOpen in maps ↗

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Published 38 days ago

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