Senior Mechanical Engineer - HVAC (Offshore Oil & Gas)

About us 
Worley is a global company of energy, chemicals and resources experts headquartered in Australia. We partner with our customers to deliver projects and create value across the life of their assets. We specialize in consulting, engineering, procurement and construction across the project lifecycle, with services extending through to operations and decommissioning. Leveraging extensive experience and AI-enabled delivery, we support customers in navigating complexity as they meet today's needs and transition to more sustainable solutions.

The Role

As a Mechanical Engineer (HVAC)  with Worley, you will work closely with our existing team to deliver projects for our clients while continuing to develop your skills and experience etc.

The Offshore HVAC Engineer is responsible for delivering efficient, reliable, and compliant HVAC design solutions for offshore oil & gas facilities, supporting project execution and Worley’s commitment to safety and operational excellence.

• Design and develop HVAC systems for offshore platforms, FPSOs, and oil & gas facilities.
• Perform heat load calculations, duct sizing, ventilation design, and equipment selection.
• Prepare HVAC deliverables including datasheets, specifications, layouts, and calculation reports.
• Ensure designs comply with applicable standards such as ASHRAE, API, NFPA, ISO, and client requirements.
• Review vendor documents, technical bids, and drawings; provide necessary technical clarifications.
• Coordinate with multidisciplinary teams (process, piping, electrical, instrumentation) to ensure integrated system design.
• Support procurement, fabrication, testing, and commissioning activities.
• Participate in design reviews, HAZOP, and safety studies where applicable.
• Ensure timely delivery of engineering outputs within project schedule and budget.
• Apply lessons learned and support continuous improvement in design practices.

About You 

To be considered for this role it is envisaged you will possess the following attributes:

Qualifications

• Bachelor’s Degree in Mechanical Engineering or related discipline.

Experience

• 8+ years of experience in HVAC engineering for Offshore Oil & Gas / EPC projects.
• Experience in offshore platforms, FPSOs, or similar facilities is mandatory.

Technical Skills

• HVAC system design for offshore environments.
• Heat load calculation and equipment sizing.
• Tools: HAP (Carrier HAP), AutoCAD, HVAC calculation software.
• Vendor document review and package engineering.
• Knowledge of international codes: ASHRAE, API, NFPA, ISO.
• Exposure to commissioning and site support activities.

Core Competencies

• Strong analytical and problem-solving skills.
• Planning and execution.
• Cross-functional coordination.
• Quality and safety focus.
• Good communication and stakeholder managemet.

Moving forward together
We want our people to be energized and empowered to drive sustainable impact. So, our focus is on a values-inspired culture that unlocks brilliance through belonging, connection and innovation. We're building a diverse, inclusive and respectful workplace. Creating a space where everyone feels they belong, can be themselves, and are heard.

And we're not just talking about it; we're doing it. We're reskilling our people, leveraging transferable skills, and supporting the transition of our workforce to become experts in today's low carbon energy infrastructure and technology. Whatever your ambition, there's a path for you here.

And there's no barrier to your potential career success. Join us to broaden your horizons, explore diverse opportunities, and be part of delivering sustainable change.