Senior Process Engineer-MMM-Gold Experience Required

Company : Worley Primary Location : USA-AZ-Mesa Job : Process Schedule : Full-time Employment Type : Employee Management Level : Individual Contributor Job Posting : Aug 13, 2025 Unposting Date : Ongoing Reporting Manager Title : Director of Engineering :

Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia.

Right now, we're bridging two worlds as we accelerate to more sustainable energy sources, while helping our customers provide the energy, chemicals and resources that society needs 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.

Purpose :

We are seeking a Senior Process Engineer with deep technical knowledge and hands-on experience in gold processing. This role will focus on designing, optimizing, and delivering gold extraction processes for both greenfield and brownfield projects, including CIP / CIL, heap leaching, gravity separation, pressure oxidation, bio-oxidation, roasting, and refractory ore treatment.

You will contribute to both brownfield and greenfield projects, bringing value to our Mining, Minerals & Metals (MMM) clients through innovative process designs and optimizations.

All candidates must have proper documentation that proves their ability to work in the United States.

This is a full-time position based at our Mesa, Arizona office, with potential project assignments in Tucson, Arizona or other regions within United States.

Responsibilities :

• Lead the development and execution of conceptual, pre-feasibility, feasibility, and detailed process designs for gold and base metal recovery circuits.
• Prepare and oversee process deliverables including :

Process Flow Diagrams (PFDs) and heat & material balances

Design and specify major gold processing equipment, including :

Qualifications

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.

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 federal, state, or local law.

Our policy is to conduct background checks for all candidates who accept an offer of employment with us.

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