Principal Mechanical Engineer

Building on our past. Ready for the future

Worley is a global professional services company of energy, chemicals and resources experts. We partner with customers to deliver projects and create value over the life of their assets. We’re bridging two worlds, moving towards more sustainable energy sources, while helping to provide the energy, chemicals and resources needed now.

Principal Mechanical Engineer

Denver / Englewood Colorado

Role Summary
The Principal Mechanical Engineer is a senior technical leader responsible for the design, specification, and delivery of mechanical systems within EPC (Engineering, Procurement, and Construction) projects. This role focuses heavily on rotating equipment, pressure vessels, and other major mechanical equipment, ensuring designs meet project requirements, industry standards, and client expectations.

The position also plays a key role in cross-functional coordination.

This position is based in Englewood, Colorado and follows a 3-day hybrid schedule at the Worley office. Remote work is not available.

Key Responsibilities

• Lead the mechanical engineering scope for EPC projects from concept through execution
• Design, specify, and review rotating equipment (pumps, compressors, turbines), pressure vessels and other major mechanical equipment.  
• Ensure compliance with applicable codes and standards (ASME, API, etc.)
• Collaborate closely with process engineering to understand operating conditions and translate them into mechanical design requirements
• Interface effectively with other mechanical engineers and multidisciplinary teams (process, piping, electrical, project management)
• Review vendor drawings, datasheets, and technical bids for accuracy and compliance
• Provide technical guidance, mentorship, and quality oversight to junior and mid-level engineers
• Support procurement, construction, and commissioning phases as needed
• Troubleshoot complex mechanical issues and provide practical, cost-effective solutions

Qualifications

• Bachelor’s degree in Mechanical Engineering
• Professional Engineer (PE) license required (Colorado), with ability to obtain licensure in additional states preferred
• 15+ years of experience in an EPC or similar project-based environment
• Strong experience with rotating equipment and pressure vessels
• Solid understanding of process conditions (pressure, temperature, flow, materials) and their impact on mechanical design
• Proven ability to work across disciplines and communicate with both technical and non-technical stakeholders
• Experience reviewing and approving engineering deliverables and vendor documentation

Compensation & Benefits

• Salary Range: $152,690 - $210,225 annually, commensurate with experience.
• Benefits: Eligible for Paid Time Off (PTO), 401(k), medical, vision, dental, and other company-provided benefits.

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We’re committed to building a diverse, inclusive and respectful workplace where everyone feels they belong, can bring themselves, and are heard. We provide equal employment opportunities to all qualified applicants and employees without regard to age, race, creed, color, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by law.

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.

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.