Senior Engineer - Metallurgy

Metallurgical Engineer – Concentrator Operations

Make a visible, day-to-day impact on concentrator performance by partnering closely with operations to improve throughput, recovery, and stability.

Competitive base salary with annual incentive bonus, plus comprehensive, family-friendly benefits.

Build long-term career growth with Rio Tinto, one of the world's leading mining and materials companies, supported by a strong technical community and continuous improvement culture.

At Rio Tinto, we are committed to creating an inclusive and welcoming workplace where everyone feels safe, respected, and able to succeed. We actively encourage applications from women and from people with diverse backgrounds, experiences, and perspectives. We know that great technical capability comes in many forms, and we're focused on building teams that reflect the communities we operate in and support each other to do their best work.

We're Finding Better Ways™ to provide the materials the world needs, now and in the future. Our values – care, courage and curiosity – guide how we work and how we treat each other.

About the Role

We are looking for a Metallurgical Engineer – Concentrator Operations to join our Concentrator Technical team at Kennecott Copper.

Working closely with operations, maintenance, planning, and control room teams, this role supports safe and efficient concentrator performance with a focus on throughput, recovery, concentrate quality, and cost efficiency.

This is a site-based, hands-on role suited to someone who enjoys being present in the plant, working collaboratively with operators, and balancing daily operational support with longer-term improvement projects.

Reporting to the Superintendent, Process Control, on a 9-day fortnight (9/80) roster and working collaboratively with operational and functional teams, you will be responsible for:

• Participate in site safety programs, including risk assessments, daily production meetings, and field leadership activities
• Monitor and analyse concentrator performance (recovery, grade, quality, and reagent consumption)
• Identify performance gaps and implement practical operating strategies to meet metallurgical targets
• Provide clear, timely technical guidance to operators, maintainers, and cross-functional teams
• Partner with Operations, Maintenance, and Control Room to optimise setpoints, reagent strategies, and circuit configuration
• Support troubleshooting during process upsets and lead/assist with sampling and laboratory test work
• Perform metallurgical and statistical analysis (e.g. PI, Minitab, JMP) and document insights and recommendations
• Lead or support continuous improvement initiatives to enhance recovery, stability, and cost performance

About You

• A commitment to the safety of yourself and the team
• Bachelor's degree in Metallurgical or Chemical Engineering (or related discipline)
• 2+ years' experience in a concentrator or mineral processing environment (flotation preferred)
• Strong understanding of flotation fundamentals, plant data analysis, and process troubleshooting
• Experience working closely with operations in a high-throughput, continuous processing environment
• Proficiency in plant data and statistical analysis tools (e.g. PI, Minitab, JMP)
• Strong communication and collaboration skills, with the ability to build trust across teams
• Self-motivated with strong time management skills, able to balance day-to-day support with longer-term improvement work

Applicants must be authorized to work in the United States without current or future visa sponsorship.

What We Offer

• A work environment where safety is always the number one priority
• Competitive base salary reflective of your skills and experience with an annual incentive bonus
• Access to top-tier family-friendly health programs including medical, prescription drug, dental, vision, life insurance coverage, and various voluntary benefits
• Excellent retirement plan including up to 6% defined company contribution and a generous 401k matching program
• Attractive share ownership plan
• Comprehensive leave policies covering all the moments that matter in life, including PTO (paid time off), paid holidays, and paid bereavement leave
• A generous parental leave policy, ensuring time to focus on your growing family
• Discount programs for leisure purposes and access to Virgin Pulse with incentives supporting your wellbeing
• Access to our Employee Assistance Program (EAP), providing confidential counselling and expert guidance for you and your family

Where You'll Be Working

Our Kennecott mine is a world-class, fully integrated copper mining operation, including a concentrator, smelter, and refinery, located just outside Salt Lake City, Utah, in the United States. We produce copper, precious metals including gold and silver, molybdenum, and sulfuric acid. Kennecott has been mining and processing minerals from the rich ore body of the Bingham Canyon Mine since 1903 and is one of the top producing mines in the world, comprising approximately 11 percent of U.S. annual copper production.

Rio Tinto reserves the right to remove the advert prior to the expiry date.

About Rio Tinto Rio Tinto is a leading global mining and materials company. We operate in 35 countries where we produce iron ore, copper, aluminium, critical minerals, and other materials needed for the global energy transition and for people, communities, and nations to thrive. We have been mining for 150 years and operate with knowledge built up across generations and continents. Our purpose is finding better ways to provide the materials the world needs – striving for innovation and continuous improvement to produce materials with low emissions and to the right environmental, social and governance standards. But we can't do it on our own, so we're focused on creating partnerships to solve problems, create win-win situations and meet opportunities.

Respect and Inclusion

Rio Tinto is committed to equal employment opportunity. All qualified applicants will be considered without regard to race, color, sex, age, religion, national origin, disability, or any other characteristic protected by federal, state, or local law.

We are committed to an inclusive environment where people feel safe, respected and valued. We want our people to feel that all voices are heard and that a variety of perspectives are not only welcome but are essential to our success. We treat all our people fairly and with dignity.

Rio Tinto participates in E-Verify to confirm work authorization. Please visit for more information.