HVAC Design Manager

Johnson Controls, Inc.; Singapore; On-site; SGD 90,000 - 130,000; Full time

Benefits offered by this job

Competitive salary

Benefits package

Training opportunities

Team environment

Zero Harm safety policy

Job summary

Johnson Controls, Inc. is seeking an experienced Mechanical Engineer to manage assigned HVAC projects, plan and execute design work, and coordinate with sales, customers, and contractors.

The role focuses on delivering profitable, high‑quality projects while maintaining customer satisfaction. The ideal candidate has 7–10 years of HVAC design experience, strong fundamentals, and hands-on CAD software proficiency.

Qualifications

• Bachelor's degree in mechanical engineering or related field.
• 7–10 years of experience in HVAC system design, including chilled water/condenser systems.
• Strong understanding of HVAC fundamentals, equipment selection, and controls integration.
• Hands-on proficiency in HVAC design software (Revit, AutoCAD).
• Familiarity with hydraulic calculations and pump head computations.

Responsibilities

• Develop and review detailed engineering drawings, schematics, and equipment specifications.
• Perform HVAC load calculations and system design for water-based HVAC systems.
• Prepare technical proposals, BOM, equipment selections, and tender documentation.
• Ensure HVAC designs comply with ASHRAE standards, codes, and 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 design reviews.
• Support troubleshooting and commissioning activities for HVAC and hydronic systems.
• Meet with clients and design teams to determine mechanical applications and requirements.
• Review and understand mechanical designs using CAD/CAM/3D CAD programs.

Skills

HVAC design

Hydraulic calculations

Project coordination

Education

Bachelor's degree in Mechanical Engineering

Tools

Revit

AutoCAD

Job description

Who we are

Build your best future with the Johnson Controls team.

As a global leader in smart, healthy and sustainable buildings, our mission is to reimagine the performance of buildings to serve people, places and the planet. Join a winning team that enables you to build your best future! Our teams are uniquely positioned to support a multitude of industries across the globe. You will have the opportunity to develop yourself through meaningful work projects and learning opportunities. We strive to provide our employees with an experience, focused on supporting their physical, financial, and emotional wellbeing. Become a member of the Johnson Controls family and thrive in an empowering company culture where your voice and ideas will be heard – your next great opportunity is just a few clicks away!

What you will do:

Manage assigned project(s) within HVAC portfolio. Serve as project manager who plan, execute and complete the medium complexity of project. Coordinate communication with sales, customer and contractors. Ensuring profitable execution, project integrity and customer satisfactions.

How you will do it:

• Develop and review detailed engineering drawings, schematics, and equipment specifications.
• Perform HVAC load calculations, hydraulic calculations, pump head calculations, pipe sizing, and chilled water/condensate water system design.
• Prepare technical proposals, bill of materials (BOM), equipment selections, and tender documentation.
• Ensure all HVAC designs comply with ASHRAE standards, local building codes, and corporate engineering guidelines.
• Coordinate with internal teams (sales, project management, solutions engineering) to support pre‑sales and project execution.
• Review and validate engineering designs from consultants, contractors, and partners.
• Provide technical mentorship and guidance to junior engineers.
• Conduct site assessments, attend technical meetings, and support design reviews.
• Support troubleshooting and commissioning activities related to HVAC and hydronic systems.
• Meeting with clients and design teams to determine mechanical applications and requirements.
• Review and understand mechanical designs using CAD, CAM, and 3D CAD programs.

What we look for:

• Bachelor’s degree in Mechanical Engineering or related field.
• Minimum 7 - 10 years experience in HVAC system design, including chilled water systems or condenser system design.
• Strong understanding of HVAC system fundamentals, equipment selection, and controls integration.
• Hands‑on proficiency in HVAC design software (Revit, AutoCAD).
• Familiarity with performing hydraulic calculations and using tools/spreadsheets for pump head computation.
• Knowledge of relevant standards (ASHRAE, ISO, local mechanical codes).
• Experience delivering medium to large‑scale commercial or industrial projects.
• Strong documentation, communication, and coordination skills.
• Professional certification (SCEM, LEED AP) is an advantage.

What we offer:

• Competitive salary
• Paid vacation/holidays/sick time
• Comprehensive benefits package
• On the job/cross training opportunities
• Encouraging and collaborative team environment
• Dedication to safety through our Zero Harm policy

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