Principal HVAC Engineer
Confirmed on the employer's own hiring board on Nov 11, 2026. First seen by Alion on Nov 10, 2026. Worley scores B on the Alion truth index.
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.
Company:Worley Group, Inc.
Position:Principal HVAC Engineer
Worksite:5995 Rogerdale Road Houston, TX 77072
Job Duties:
Perform a wide variety of difficult and highly complex HVAC engineering, design, analysis, or other technical tasks utilizing current technology and available standards, templates, and cataloged products. Develop innovative technical solutions to complex problems in areas like energy conservation and sustainability. Work collaboratively with other team members to develop design criteria, define requirements for the systems, develop conceptual design and preliminary design documents, complete calculations related to sizing and selection for largescale facilities, and participate in the development of Air flow schematic, Duct and Instrumentation Diagrams, and general equipment arrangements. Perform design and engineering of lifesafety systems governed by stringent codes, NFPA standards, including but not limited to building heating, ventilating and air conditioning systems, as well as related fire alarm and fire suppression systems and gas detection systems and plumbing systems. Perform surveys to ascertain conditions of existing facilities. Perform studies to evaluate the cost-effectiveness of design alternatives and recommend alternatives for implementation. Develop technical specifications, plans, elevations, section, and details. Reform engineering related calculations. Verify compliance with applicable codes and engineering standards / practices. Coordinate with other in-house engineering disciplines as needed. Perform site visits, condition assessments, and construction inspections to identify latent defects, foresee potential system failures, and verify that installations meet complex design specifications. Gather and correlate basic engineering data using established and well-defined procedures. Work on detailed or routine engineering assignments involving calculations and simple tests. Propose approach to solve new problems encountered using modifications of standard procedures or methods developed in previous assignments. Identify discrepancies in results. Perform work in accordance with agreed upon budget and schedule with little supervision. Independently perform all the tasks necessary to complete primary design elements for engineering works.
Minimum Requirements: Bachelor's degree in Mechanical Engineering, HVAC Engineering or a related field and 120 months (10 years) of progressive industrial mechanical engineering experience for EPC and/or Manufacturing in oil, gas, and/or chemicals industries, including 5 years of experience in mechanical HVAC and plumbing design, experience performing HVAC design calculations and equipment selection for buildings located in Arctic and Hot climates, applying knowledge with ASHRAE Standards and Building and Fire Codes (IBC, IFC, IPC and NFPA), preparing HVAC Flow Diagrams and equipment and plumbing Layouts, writing specifications, and demonstrating familiarity with Carrier HAP 6.2 or other software, experience with design of air handling systems (100% outside air, recirculating, exhaust systems, dust collection) and utility systems design including chilled water, heating hot water, compressed air, steam, and condensate, and experience applying knowledge of design codes and standards, plumbing systems (such as sanitary, potable water, etc.), fire protection system (such as fire alarm, fire suppression system, etc.), and gas detection system.
Travel Requirements: 10% domestic travel for vendor inspection and/or site survey.
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.