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Senior Mechanical Engineer - US MMM

Worley Group, Inc
United States, Arizona, Mesa
May 07, 2026
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.

We partner with our customers to deliver projects and create value over the life of their portfolio of assets. We solve complex problems by finding integrated data-centric solutions from the first stages of consulting and engineering to installation and commissioning, to the last stages of decommissioning and remediation. Join us and help drive innovation and sustainability in our projects.

Summary/Description:

Lead and support the Mechanical, Layout and Piping Engineering team for projects in the US MMM (Mining, Minerals, and Metals) business. Manage small to large projects, ensuring quality, cost, and schedule adherence. Responsible for the Mechanical and Piping Engineering team's output, technical integrity, and compliance with safety standards. Drive engineering excellence and adherence to industry codes.

We seek a self-motivated individual with strong leadership and communication skills, adept at solving complex Engineering challenges.

This is a full-time position based at our Mesa, Arizona office.

Responsibilities

  • Lead a discipline project team in the Mechanical and Piping department for Mining, Minerals, and Metals projects.

  • Act as the project lead designer/engineer, overseeing the work of engineers, designers, or drafters.

  • Perform design/engineering work and deliverables within the Mechanical and Piping team.

  • Interpret customer specifications and coordinate/communicate with other disciplines and customers.

  • Support scope definition, estimation, and progress control of Mechanical and Piping Engineering activities.

  • Lead RFP, estimations, detailed engineering, and field support project activities.

  • Ensure familiarity with applicable codes, mining Mechanical and Piping standards, and customer standards.

  • Support quality assurance and verification roles on engineering deliverables.

  • Identify and resolve issues and problems, keeping abreast of the latest developments in Mechanical and Piping Engineering.

  • Act as the Mechanical and Piping Engineering lead on specific projects when required.

  • Ensure project scope clarity and compliance with change management processes.

  • Participate in meetings, prepare progress reports, and follow required checking procedures.

  • Provide assistance and advice during procurement, construction, and commissioning activities.

  • Offer construction management support for customers as required.

  • Liaise with clients, vendors, engineers, and other disciplines.

  • Contribute to the professional development of less experienced team members.

  • Deliver Mechanical and Piping Engineering services meeting Worley, customer, and regulatory standards.

  • Initiate, manage, and supervise Mechanical and Piping Engineering activities to meet project requirements.

  • Participate in the preparation of specifications, datasheets and technical bid evaluation.

  • Participate in site walkdowns, project meetings, design reviews, and incorporation of review comments.

  • Experienced in managing the workshare and multi-office teams discipline coordination and well-versed in working in a multidisciplinary coordination.

  • Monitor assigned activities for effective performance and adherence to established policies and standards.

  • Lead a team to ensure successful delivery for various mining, minerals, and metals projects.

  • Mentor junior or intermediate staff.

  • Plan and identify Mechanical and Piping Engineering resources.

  • In-process activities for engineering deliverables (prepare, review, verify, approve).

  • Coordinate key technical deliverables.

  • Work interactively with internal and external customers, ensuring high-quality engineering products and customer satisfaction.

  • Ensure adherence to government, organization, and customer engineering standards and procedures.

  • Participate in engineering department and section meetings.

  • Demonstrate highly effective technical and practical engineering skills, consistently delivering quality work.

  • Possess sound knowledge of Mechanical and Piping Engineering fundamentals and basic requirements of other engineering fields.

  • Utilize Mechanical and Piping Engineering software and have a working knowledge of Mechanical and Piping 3D modeling programs such as Aveva E3D and Smart 3D.

  • Competently use relevant software, such as MS Office Suite.

  • Collaborate and develop a strategic pursuit and proposal development of Mechanical and Piping discipline.

  • Develop a Mechanical and Piping discipline proposal write-up including technical, value proposition and vision objectives.

  • Mechanical and Piping discipline specific technical and value improving practices presentations to clients.

  • Review of Detailed Engineering design, documents, drawings, calculation and sealing and stamping for the IFC issuance.

  • Lead plant and infrastructure layout development for mining and minerals facilities, ensuring safe, constructible, operable, and maintainable designs.

  • Develop and review overall plant layouts, plot plans, and 3D models for processing plants, materials handling areas, utilities, and supporting infrastructure.

  • Ensure layout compliance with mining safety requirements, access and egress, equipment maintenance envelopes, cranage, lifting paths, and operational workflows.

  • Coordinate closely with Process, Civil/Structural, Electrical, I&C, and Operations disciplines to ensure integrated and optimized layout solutions.

  • Drive layout decisions considering operation philosophy, constructability, modularization, brownfield tie ins, and future expansions.

  • Review and approve equipment arrangement drawings, conveyor routing, pump and piping layouts, equipment removal paths, and maintenance access.

  • Support site selection, area definition, and battery limit development during study phases (PFS, FS, BFS).

  • Participate in HAZID, HAZOP, constructability, and operability reviews, ensuring layout related risks are identified and mitigated.

  • Provide layout and field input during site walkdowns, clash resolution, and constructability reviews.

  • Mentor designers and engineers in best practice mining plant and infrastructure layout principles.


Qualifications:

Required:

  • Bachelor's Engineering degree in Mechanical Engineering or equivalent combination of education and experience

  • 8+ years Lead or Senior Mechanical and Piping Engineer experience.

  • 4+ years Mining, Minerals & Metals projects experience.

  • Demonstrated experience developing and coordinating mining plant and infrastructure layouts, ensuring safety, operability, and maintainability.

Preferred:

  • Advanced degree in Mechanical Engineering would be considered an asset.

  • 2 to 4 years of EPC/EPCM Mining project experience.

  • Mining regulatory/MSHA certification and experience.

  • Mechanical Engineering Licensed Professional Engineer in Arizona (or able to obtain in a short-term) State.

  • Experience delivering plant layouts across study and EPC/EPCM phases, including greenfield and brownfield mining facilities.

Additional Skills:

  • An excellent verbal and written communication skills, with the ability to interact effectively with diverse clients.

  • A strong analytical and problem-solving abilities to address complex technical and operational challenges and,

  • Demonstrated leadership in man

  • aging critical projects with a focus on safety, efficiency, and value optimization.

What we offer you
Providing an agile culture and challenging work opportunities results in a positive work environment. Our people enjoy competitive compensation packages and a fun, personal, collaborative and safe working environment. We value equal employment opportunity and are committed to promoting fairness, equality and diversity.

Our policy is to conduct background checks for all candidates who accept an offer of employment with us. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected Veteran status, age, or any other characteristic protected by law.

If you have the passion and talent to keep up, it's time to test the limits of what you can become. Find your future with Worley.

Please note: No agency representation or submissions will be recognized for this vacancy.

Moving forward together

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.

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