Senior HVAC Design & Project Lead

johnson controls (s) pte. ltd.; Singapore; On-site; SGD 90,000 - 140,000; Full time

Job summary

Johnson Controls Singapore is seeking an experienced Mechanical Engineer to manage HVAC projects from planning through execution.

You will lead medium-complexity projects, coordinate with sales, customers and contractors, and ensure profitable, compliant delivery.

Ideal candidate holds a Mechanical Engineering degree with 7–10 years of HVAC design experience and proficiency in Revit and AutoCAD, plus ASHRAE/ISO knowledge.

Qualifications

• Degree in Mechanical Engineering or related field required.
• 7–10 years in HVAC system design including chilled water or condenser systems.
• Strong HVAC fundamentals and controls integration.
• Proficiency in Revit and AutoCAD.
• Experience with ASHRAE, ISO, and local mechanical codes.
• Experience delivering mid-scale commercial or industrial projects.
• SCEM or LEED AP is a plus.

Responsibilities

• Manage assigned project(s) within HVAC portfolio; plan, execute and complete medium complexity projects.
• Coordinate communication with sales, customer and contractors to ensure alignment and updates.
• Develop and review detailed engineering drawings, schematics, and equipment specifications.
• Perform HVAC load calculations, hydraulic calculations, pump head calculations, pipe sizing and system design.
• Prepare proposals, BOM, equipment selections, and tender documentation.
• Ensure all designs comply with ASHRAE standards, ISO codes and corporate guidelines.
• Coordinate with internal teams to support pre-sales and project execution.
• Review and validate engineering designs from consultants, contractors, and partners.
• Provide technical mentorship to junior engineers.
• Conduct site assessments, attend technical meetings and support reviews.
• Support troubleshooting and commissioning activities for HVAC and hydronic systems.
• Meet with clients and design teams to determine mechanical applications and requirements.
• Review mechanical designs using CAD, CAM, and 3D CAD programs.

Skills

Communication skills

Team coordination

Education

Bachelor’s degree in Mechanical Engineering or related field

Tools

Revit

AutoCAD

Job description

Johnson Controls Singapore is seeking an experienced Mechanical Engineer to manage HVAC projects from planning through execution.

You will lead medium-complexity projects, coordinate with sales, customers and contractors, and ensure profitable, compliant delivery.

Ideal candidate holds a Mechanical Engineering degree with 7–10 years of HVAC design experience and proficiency in Revit and AutoCAD, plus ASHRAE/ISO knowledge.