Mechanical Design & Engineering ◆ Lead full mechanical systems design across all project phases: concept, schematic, detailed design, and construction documentation. ◆ Design, size, and specify HVAC systems, including central plant, AHUs, FCUs, VAV, VRF/VRV, and district cooling connections. ◆ Develop complete plumbing and drainage systems, including domestic water supply, hot water generation, sanitary drainage, and grey/black water treatment. ◆ Design firefighting systems: wet and dry risers, sprinkler networks, FM200/clean agent systems, smoke extraction, and pressurization. ◆ Produce load calculations, equipment schedules, psychrometric analyses, pipe sizing, duct sizing, and energy modelling reports. ◆ Prepare full mechanical drawing packages: layout plans, schematics, sections, riser diagrams, details, and specifications. Technical Coordination & Quality ◆ Coordinate mechanical systems with architectural, structural, electrical, and plumbing disciplines to resolve clashes and optimize spatial integration. ◆ Review and approve MEP BIM models for coordination and clash detection using Navisworks or equivalent platforms. ◆ Prepare and review technical submittals, method statements, material approval requests (MARs), and shop drawings from contractors. ◆ Conduct engineering reviews against Saudi Building Code (SBC), ASHRAE, NFPA, BS, and CIBSE standards. ◆ Perform energy compliance checks and sustainability assessments, including LEED/WELL mechanical prerequisites. Site Supervision & Construction Support ◆ Carry out regular site inspections to verify mechanical installations comply with approved design drawings and specifications. ◆ Attend site coordination meetings, technical workshops, and progress review sessions with contractors and clients. ◆ Review and respond to RFIs, technical queries, and variation requests from the main contractor and subcontractors. ◆ Support commissioning and testing teams during system start-up, balancing, and performance verification stages. ◆ Prepare and review O&M manuals, as-built drawings, and handover documentation for final project close-out. Project & Stakeholder Management ◆ Manage mechanical design deliverable schedules and resource allocation across multiple concurrent projects. ◆ Liaise with Saudi Electricity Company (SEC), SASO, Civil Defense, and municipal authorities for system approvals and NOCs. ◆ Lead client-facing technical presentations, design workshops, and value engineering reviews. ◆ Mentor junior and mid-level mechanical engineers, fostering technical growth and quality standards across the team. ◆ Collaborate with commercial and project management teams to deliver within the agreed budget, scope, and program.