Principal Mechanical Engineer

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 todays needs and transition to more sustainable solutions. 

Job Purpose

The Specialist HVAC Engineer is responsible for providing specialist engineering support for the design, review, coordination, and execution of HVAC systems for offshore oil and gas facilities. The role involves ensuring that all HVAC engineering activities comply with ADNOC standards, international codes, project specifications, safety requirements, and project quality objectives throughout the FEED and EPC phases.

Key Responsibilities

• Perform and review HVAC engineering deliverables for offshore oil and gas facilities during FEED and EPC phases.
• Review contractor HVAC designs, calculations, specifications, equipment data sheets, and technical bid evaluations.
• Ensure HVAC systems comply with ADNOC standards, ASHRAE, SMACNA, NFPA, API, ISO, and other applicable international codes.
• Review HVAC load calculations, ventilation studies, equipment sizing, duct routing, pressurization philosophy, and smoke management systems.
• Coordinate with Process, Mechanical, Electrical, Instrumentation, Civil/Structural, Architectural, Safety, and Construction disciplines to ensure integrated engineering solutions.
• Participate in HAZID, HAZOP, SIL, Constructability, Model Reviews, and Design Reviews.
• Review vendor documents and provide timely technical comments and approvals.
• Support procurement activities by reviewing technical queries, bid evaluations, and vendor offers.
• Provide technical support during construction, installation, commissioning, and start-up activities.
• Review engineering changes, deviations, concession requests, and technical clarifications.
• Monitor engineering progress, identify risks, and recommend mitigation measures.
• Ensure compliance with project schedules, quality standards, and HSE requirements.
• Support FAT, SAT, pre-commissioning, commissioning, and project handover activities.
• Provide technical guidance and mentorship to junior engineers when required.

Minimum Qualifications

• Bachelors Degree in Mechanical Engineering or an equivalent engineering discipline from an accredited university.
• Professional Engineering certification or Chartered Engineer status is preferred.

Experience

• Bachelor’s degree in relevant engineering discipline or equivalent, from an accredited university; or a minimum of fifteen (15) years of relevant experience in the Oil & Gas or Petrochemical industry. 
• Must have at least five (5) years of experience in a similar position on mega Oil & Gas or Petrochemical projects. 
• Minimum 5 years of experience working in the GCC region is required.
• Proven experience in both FEED and EPC project execution.
• Offshore project experience is required.
• ADNOC offshore experience is required.
• Previous experience in a PMC environment is preferred.

Technical Competencies

• Offshore HVAC design and engineering.
• HVAC load calculations and equipment sizing.
• Hazardous area ventilation design.
• Pressurized HVAC systems.
• Smoke management and life safety systems.
• HVAC equipment specification and vendor document review.
• Technical bid evaluation.
• Engineering calculations and design verification.
• Multidisciplinary engineering coordination.
• Commissioning and start-up support.
• Knowledge of ASHRAE, SMACNA, NFPA, API, ISO, and ADNOC Engineering Standards.

Behavioral Competencies

• Strong technical and analytical skills.
• Excellent communication and stakeholder management abilities.
• Strong planning and organizational skills.
• Problem-solving and decision-making capability.
• Ability to work effectively in multidisciplinary and multicultural teams.
• Commitment to safety, quality, and continuous improvement.

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. Were building a diverse, inclusive and respectful workplace. Creating a space where everyone feels they belong, can be themselves, and are heard.

And were not just talking about it; were doing it. Were reskilling our people, leveraging transferable skills, and supporting the transition of our workforce to become experts in todays low carbon energy infrastructure and technology. Whatever your ambition, theres a path for you here.

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