Senior Technical Office Engineer Mechanical Design

About the Role

Alrawaf Contracting is seeking an experienced Senior Technical Office Engineer Mechanical Design to join our construction team in Riyadh, Saudi Arabia. This full-time role involves significant experience in mechanical design, technical office activities, MEP construction, HVAC, plumbing, firefighting, and engineering coordination within the construction sector.

Key Responsibilities

• Review project specifications, contract documents, drawings, and design requirements.
• Develop and review mechanical designs for HVAC, plumbing, drainage, and firefighting systems.
• Perform and review mechanical calculations, including cooling/heating loads, equipment sizing, duct sizing, chilled water and hydronic piping, domestic water demand, drainage, and firefighting hydraulics.
• Prepare design layouts, schematics, equipment schedules, and technical documentation, ensuring compliance with project requirements, codes, and authority regulations.
• Prepare, review, and approve mechanical shop drawings and coordinated MEP drawings.
• Review subcontractor and supplier drawings, calculations, material submittals, and technical documents.
• Prepare and respond to RFIs (Requests for Information) and technical queries.
• Review and resolve technical issues raised by construction/site teams.
• Prepare method statements, technical reports, material submittals, and other engineering documentation.
• Review and comment on as-built drawings, ensuring accurate technical information.
• Assist in preparing variation orders, technical proposals, and change documentation.

Design and Site Coordination

• Coordinate mechanical works with architectural, structural, electrical, and other MEP disciplines.
• Participate in design coordination and clash detection meetings.
• Review BIM/3D coordination models to identify potential clashes before site execution.
• Coordinate MEP services with structural elements, ceilings, shafts, plant rooms, and architectural requirements.
• Provide technical support to site engineers and construction teams.
• Conduct site inspections to verify installations comply with approved drawings and specifications.
• Assist in resolving construction and installation problems, reviewing proposed technical solutions for constructability.
• Coordinate with consultants, clients, subcontractors, and suppliers on technical matters.
• Participate in testing, commissioning, inspection, and handover activities.

Quality and Compliance

• Ensure mechanical designs and installations comply with applicable Saudi and international standards, project specifications, and approved drawings.
• Support the QA/QC team in resolving mechanical quality issues and NCRs.
• Review inspection and testing requirements for mechanical systems.
• Ensure engineering documents are properly controlled and updated.

Qualifications and Experience

• 5-10 years of practical experience in design and construction projects within KSA.
• Strong understanding of Saudi building codes, international standards, and project specifications.
• Proven experience in MEP construction and mechanical design.
• Experience working for a main contractor or large MEP contractor.
• Experience with major projects in Saudi Arabia.
• Experience in design review, shop drawing preparation, and technical coordination.
• Experience with BIM and multidisciplinary coordination.
• Experience dealing with consultants and client representatives.
• Experience supporting procurement through technical evaluation of mechanical equipment and materials.