Mechanical Engineer, Brisbane

Mechanical Engineer Johnson Controls Windsor, Brisbane QLD Mechanical Engineering (Engineering) Full time Add expected salary to your profile for insights Johnson Controls Australia leverages our building technology portfolio, along with decades of building technology experience, to deliver comprehensive and best in class, security solutions tailored to the unique needs of our customers. Why Join Us? Global Leader: Be part of a company with over 140 years of innovation and a reputation for excellence. Cutting-Edge Technology: Work with advanced building automation, security, and digital solutions. Career Growth: Access world-class training and development opportunities. Impactful Work: Help create smarter, safer, and more sustainable spaces for communities across Australia. About this role: We are seeking a Mechanical Engineer to join our QLD Project team. In this role, you will provide engineering, design, and technical support for Johnson Controls' HVAC retrofit, upgrade, and building-services projects across Australia. The role supports Project Managers, Service Teams, and Sales Engineering from early design through installation, commissioning, and handover. This position ensures that all engineering outputs meet Johnson Controls standards, customer requirements, Australian Standards, the NCC/BCA, and WHS/Safety in Design obligations. The role exists to deliver safe, compliant, energy?efficient HVAC solutions that protect project gross margins, support quality execution, and enhance customer experience. What you'll be doing: Engineering Design and Documentation Perform HVAC load calculations, system sizing, and technical assessments for retrofit and service projects. Produce mechanical designs including schematics, ductwork layouts, pipe sizing, plant selections, and equipment schedules. Develop mark-ups, design packages, and conceptual/IFC drawings in CAD or Revit environments. Ensure all engineering work adheres to Australian Standards, NCC, Johnson Controls QA processes, and client specifications. Prepare specifications, scope of works, commissioning plans, and technical documentation. Provide engineering support to Project Managers throughout the project lifecycle—from sales handover to commissioning. Support Service Teams with engineering advice for defects, asset upgrades, lifecycle reviews, and maintenance opportunities. Review technical submittals, shop drawings, equipment selections, and control strategies for compliance. Conduct site inspections to verify design intent, installation quality, commissioning readiness, and WHS compliance. Assist with troubleshooting, diagnostic assessments, and system optimisation. Coordination and Stakeholder Management Work closely with Sales Engineering on technical inputs for proposals and estimates. Coordinate with internal engineering functions: BMS/Controls, Electrical, Fire, and Commissioning Teams. Liaise with clients, consultants, builders, facility managers, and subcontractors to clarify design queries and ensure smooth project delivery. Prepare and respond to RFIs, technical clarifications, and design change requests. Safety in Design and Compliance Integrate Safety in Design principles into all engineering deliverables. Participate in design risk workshops and ensure hazards are identified and controlled. Ensure WHS obligations are met for all engineering work undertaken. Maintain compliance with Johnson Controls Safety, Health and Environment Management System (SHEMS). Commissioning and Handover Support Assist commissioning teams with functional testing, performance verification, and resolving design/installation issues. Validate system performance against design requirements and client KPIs. Prepare as-built documentation, commissioning reports, OandM manuals, and close-out packages. Continuous Improvement and Business Support Identify opportunities for energy efficiency, plant optimisation, and upgrades. Contribute to product and design standardization improvements. Mentor junior engineers and provide technical guidance to field teams. Support quality investigations, defect reviews, and lessons-learned activities. What we're looking for: Bachelor’s Degree in Mechanical Engineering (or equivalent Mechanical/Mechatronics discipline). Experience in HVAC design, project engineering, or building services experience. Strong working knowledge of the NCC/BCA, Australian Standards for HVAC, and mechanical services guidelines. Proficient in HVAC calculations, equipment selection, and technical evaluation. Experience with retrofit/upgrade environments and integration with existing plant. Strong communication, technical writing, and stakeholder engagement skills. Ability to manage multiple tasks, deadlines, and priorities. Ready to make an impact? Apply now!