Principal Mechanical Engineer- Materials Handling Group

WorleyParsons; Long Beach (CA); On-site; USD 146,000 - 215,000; Full time

Job summary

Worley in California is seeking a Principal Mechanical Engineer for the Materials Handling Group in Long Beach or Monrovia. You will lead project execution and deliverables, mentor engineers, and ensure compliance with procedures.

The role focuses on innovative solutions for complex equipment, coordinating with project management and clients, and driving safety, quality, and efficiency across multidisciplinary projects.

Qualifications

• Typically, there is a minimum of 8 years of Materials Handling Engineering experience in Petroleum-Chemical and/or Mining Industries.
• 5 years in other Mechanical equipment or packaged equipment.
• Excellent written and verbal communication skills in English.
• Emphasis on reciprocating compressor experience, with working knowledge of API 617, 614, 670 and 671.

Responsibilities

• Work within a multidisciplinary team and understand the broad organizational implications of the work being performed.
• Will be updating schedules and progress reports.
• May be asked to generate budgets for new work.
• Will be interfacing with Project Management and the Customers regularly.
• Will be required to develop/check specifications, data sheets, technical bids, purchase orders, resolve technical queries from vendors on various Compressor and Pump equipment, able to coordinate project requirements with other disciplines, project staff and clients.
• Will be required to maintain quality deliverables throughout the procurement of the equipment.
• Will be required to support work share activities with overseas offices on Rotating Equipment deliverables.
• Will be required to develop/support hour estimation, TIC estimates, deliverable requirements and personnel loading for the Rotating Engineering scope of the project.
• Able to support or fill in for the Mechanical lead as requested.

Skills

Materials Handling Engineering

Reciprocating compressor experience

English communication

API standards familiarity

Education

BS or MS in Mechanical Engineering

Tools

API 617/614/670/671

Job description

Job Description - Principal Mechanical Engineer- Materials Handling Group (LON03E8)

Principal Mechanical Engineer- Materials Handling Group - LON03E8

Company : Worley

Primary Location

USA-CA-Long Beach

Other Locations

USA-CA-Monrovia

Job

Mechanical

Schedule

Full-time

Employment Type : Employee

Job Posting

Sep 10, 2026

Unposting Date

Oct 25, 2026

Reporting Manager Title : Senior Specialist Mechanical Engineering

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.

Principal Mechanical Engineer

Worley Group
Long Beach or Monrovia, California

Purpose:

Join Worley’s Monrovia or Long Beach office as a Principal Process Engineer within the Materials Handling Engineering Group, where you’ll provide technical and leadership excellence across multidisciplinary projects. In this role, you’ll lead project execution and discipline deliverables, ensuring alignment with company and client procedures while driving continuous improvement in work processes. You’ll develop innovative technical solutions to complex engineering challenges, oversee and mentor a team of engineers, and support the successful delivery of safe, efficient, and high-quality project outcomes.

Responsibilities:

• The candidate will work within a team framework of other disciplines and will understand the broad organizational implications of the work being performed.
• Will be updating schedules and progress reports.
• May be asked to generate budgets for new work.
• Will be interfacing with Project Management and the Customers regularly.
• Will be required to develop/check specifications, data sheets, technical bids, purchase orders, resolve technical queries from vendorson various Compressor and Pump equipment, able to coordinate project requirements with other disciplines, project staff and clients.
• Will be required to maintain quality deliverables throughout the procurement of the equipment.
• Will be required to support work share activities with overseas offices onRotating Equipmentdeliverables.
• Will be required to develop/support hour estimation, TIC estimates, deliverable requirements and personnel loading for theRotating Engineeringscope of the project.
• Able to support or fill in for the Mechanical lead as requested.

What you will bring

Technical/Industry Experience and Qualifications Requirements:

• Thorough knowledge of applicable theories, practices, and accepted office procedures.
• Typically, there is a minimum of8 years of Materials Handling Engineering experience in Petroleum-Chemical and/or Mining Industries.
• 5 years in other Mechanical equipment or packaged equipment.
• Excellent written and verbal communication skills in English.
• Emphasis on reciprocating compressor experience, with working knowledge of API 617, 614, 670 and 671.

Preferred Qualifications

• Knowledge of API, ANSI, NEMA, ASTM specifications.

Additional Information:

• Positions located is in Monrovia or Long Beach, CA, Worley office location.
• May berequired to travel to the vendors facilities.May berequired to travel to the vendors facilities.
is missing closing tag? We need correct formatting. Yes, we need to correct that. Let's modify:
• Positions located is in Monrovia or Long Beach, CA, Worley office location.
• May berequired to travel to the vendors facilities.
• Salary Range $146,187-$214,980 commensurate with experience and level of position.
Okay. Now continuing:

Education – Qualifications, Accreditation, Training:

Required:

• BS or MS in Mechanical Engineering or equivalent.

Preferred:

At least 15 years in petrochemical and refining with project design, execution, construction.

On-site and/or in-refinery experience.

Oil and Gas experience.

Additional experience in the Power industry, Carbon Capture, or Arctic environment is valued.

We will consider for employment all qualified Applicants, including those with Criminal Histories, in a manner consistent with the requirements of applicable state and local laws, including the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance.”

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.