Hewitt Consulting Engineers – North Sydney NSW
As an Intermediate Mechanical Engineer, you will play a valued role within our engineering team, working closely with the Director and senior engineers on the delivery of a varied project portfolio.
This position is ideally suited to an engineer with 3–5+ years of experience who is looking to build on a strong technical foundation, take on greater responsibility, and grow both technically and commercially within a stable, supportive consultancy.
Key responsibilities
Design mechanical HVAC systems in accordance with relevant codes and standards
Perform heat load calculations, equipment selection, and system scheduling
Contribute to and coordinate multidisciplinary project delivery, working alongside architects, contractors, and other consultants
Support client relationships and communications under the guidance of senior staff
Conduct site inspections and surveys
Prepare explicit, accurate, and comprehensive technical documentation and specifications
Provide guidance and support to graduate and junior engineers as your experience develops
About you
3–5+ years of local experience in the construction industry
Experience in consulting mechanical building services, multidisciplinary design coordination, and working with contractors




Strong verbal and written communication skills with a high level of qualified English proficiency
Proficiency in Bluebeam, AutoCAD, and/or Revit (desirable but not essential); drafting experience an advantage
A proactive, positive, and solutions-focused mindset
Strong technical collaboration skills and the ability to work effectively within a close-knit team
Good initiative, problem-solving ability, and time management
A collaborative approach to design and project coordination
A genuine desire to add value to our systems, processes, and culture
Australian citizenship or permanent residency
About us
Hewitt Consulting Engineers is a respected name within the construction industry, providing high-quality mechanical (HVAC) engineering design and technical advisory services.
We work across a diverse range of sectors including Commercial, Health, Laboratories, Pharmaceutical, Aged Care, Education, Hospitality, Retail, Industrial, and Government projects.
Ongoing training and development opportunities, including mentoring from senior and director-level engineers
A supportive and experienced team environment
Meaningful involvement in diverse and challenging projects
A competitive salary package, commensurate with experience and expertise
#J-*****-Ljbffr

📌 Intermediate Mechanical Engineer (Sydney)
🏢 Hewitt Consulting Engineers
📍 Sydney