Senior Technical Mechanical Engineer HVAC Systems % (M/F)📣 Job Ad

About ARX | Smart Minds

ARX | Smart Minds is a global network specializing in engineering, design, and architecture. The company provides 360-degree consulting, project management, and technical services across various sectors, including infrastructure, buildings, and digital innovation. With offices across multiple continents, ARX combines global expertise with local knowledge to address specific community needs while integrating international best practices. ARX has expanded its presence into the Middle East with offices in the UAE and KSA, reinforcing its commitment to engineering excellence in the GCC market.

The Role: Senior Technical Mechanical Engineer (HVAC Systems)

ARX | Smart Minds is seeking a Senior Technical Mechanical Engineer (HVAC Systems) for a full-time position in Al Madinah, Saudi Arabia. This role requires a senior mechanical engineering professional with over 10 years of experience, focusing on technical-office, design review, and coordination for HVAC systems in high-rise, hospitality, mixed-use, or large-scale commercial developments. The ideal candidate will possess hands-on capabilities in various aspects of HVAC system design and coordination.

Key Responsibilities

• Lead technical-office reviews for HVAC systems, including central cooling plants, chilled-water networks, air distribution systems, plant rooms, risers, shafts, and mechanical smoke-control systems.
• Perform and audit cooling and heating load calculations, chilled-water hydraulic calculations, pump head calculations, duct static pressure, external static pressure, and expansion tank sizing.
• Validate staircase and lift-core pressurization calculations and smoke-management design in accordance with applicable codes and authority requirements.
• Check HVAC shop drawings, riser diagrams, chiller plant schematics, ductwork and piping layouts, plant room sections, equipment schedules, and coordinated Revit/Navisworks models.
• Assess material submittals, equipment datasheets, compliance sheets, and technical selections for chillers, AHUs, FCUs, VAVs, cooling towers, pumps, VFDs, dampers, and controls.
• Coordinate HVAC interfaces with architecture, structure, electrical power, ELV/BMS, fire life safety, plumbing, BIM, and site teams.
• Develop and check testing and commissioning method statements, TAB procedures, inspection and test plans, functional performance requirements, and HVAC/BMS sequence of operation documents.
• Identify technical gaps, constructability concerns, interface clashes, missing information, and compliance issues, then drive clear close-out actions.
• Participate in technical meetings, consultant/client reviews, coordination workshops, and specialist supplier discussions.
• Maintain accurate review records, calculation files, coordinated comments, and technical close-out documentation.

Candidate Requirements

• Over 10 years of experience as a mechanical engineering professional.
• Strong technical-office, design review, and coordination experience with HVAC systems.
• Experience in high-rise, hospitality, mixed-use, or large-scale commercial developments.
• Proficiency in cooling-load calculations, chilled-water systems, air distribution, central plant coordination, smoke-control design, and equipment selection.
• Ability to perform technical submittal reviews and coordinate with BIM, BMS, fire life safety, architectural, structural, and site teams.

Professional Growth

ARX | Smart Minds offers opportunities for collaboration within a forward-thinking team and exposure to projects in the Middle East and North African regions. The company supports personalized professional growth and developmental avenues aligned with career aspirations.

Application Process

Individuals interested in this Senior Technical Mechanical Engineer (HVAC Systems) position are encouraged to apply. The salary for this role will be discussed during the interview process.