Mechanical Design Engineer

Position Summary

The Senior Mechanical Design Engineer is responsible for the design and engineering of mechanical building systems, with a primary focus on HVAC (Heating, Ventilation, and Air Conditioning), ventilation, plumbing, fire protection, and other mechanical systems for commercial, retail, mixed-use, and real estate development projects. The role is responsible for preparing design calculations, drawings, technical specifications, preliminary cost estimates, site surveys, and providing technical support throughout the design and construction process to ensure compliance with project requirements, engineering standards, applicable codes, and budget.

Key Responsibilities

Mechanical Design

• Design HVAC, ventilation, plumbing, fire protection, and other mechanical systems in accordance with applicable engineering standards and local regulations.
• Perform engineering calculations, system sizing, load calculations, and equipment selection.
• Prepare concept, schematic, detailed, and construction design documents.
• Review and optimize mechanical system designs for functionality, energy efficiency, constructability, and cost effectiveness.
• Coordinate design interfaces with architectural, structural, electrical, and other engineering disciplines.

Design Documentation

• Prepare mechanical drawings, technical specifications, schedules, and bill of quantities.
• Develop preliminary cost estimates based on design concepts.
• Review and verify consultant or contractor design submissions.
• Ensure design documents are complete, accurate, and aligned with project requirements.

Site Survey & Technical Support

• Conduct site inspections and surveys to collect engineering information for design development.
• Attend site meetings and coordinate with project teams to resolve design-related issues.
• Provide technical clarification during tender and construction stages.
• Review shop drawings, material submissions, and respond to RFIs related to mechanical works.

Project Coordination

• Participate in design coordination meetings with internal stakeholders, consultants, contractors, and clients.
• Monitor design progress to ensure project milestones are achieved.
• Coordinate with procurement and construction teams regarding equipment specifications and technical requirements.
• Support value engineering initiatives to optimize project cost and performance.

Quality & Compliance

• Ensure all mechanical designs comply with applicable codes, standards, and company design guidelines.
• Maintain proper documentation and version control of engineering documents.
• Identify design risks and recommend appropriate engineering solutions.
• Promote continuous improvement in design quality, efficiency, and engineering practices.

Qualifications

• Bachelor's Degree in Mechanical Engineering.
• Minimum 5 years of experience in mechanical building system design.
• Experience in commercial buildings, shopping centers, mixed-use developments, hotels, office buildings, or residential projects.
• Strong knowledge of HVAC, ventilation, plumbing, fire protection, and building services systems.
• Familiarity with Thai building codes, engineering standards, and relevant regulations.