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Salary
$92k – $127k per year
Location
In office (Boron)
Seniority
Junior · 2+ years exp
Employment
Full-Time

Confirmed on the employer's own hiring board on Oct 5, 2026. First seen by Alion on Sep 15, 2026.

Overview
Company
Impact
Profile match
Rio Tinto is a mining group founded in 1873 when investors bought a copper mine in southern Spain, and it now operates as a dual-listed company with corporate offices in London and Melbourne. Its largest business by far is iron ore from the Pilbara region of Western Australia, an integrated system of mines, rail and ports that supplies Chinese steelmaking, followed by aluminium, copper from Oyu Tolgoi in Mongolia and Kennecott in Utah, and industrial minerals including borates and titanium dioxide. The group has moved into battery materials through lithium assets in Argentina and the acquisition of Arcadium, while working to decarbonise aluminium smelting.

Project Engineer

  • Opportunity to develop your career and work for a global organization
  • Competitive salary and benefits
  • Join a company with a world class reputation for safety and a culture that supports inclusion and diversity - Boron, California
  • For California based roles the expected annual salary range is $92,240 - $126,830

About the role

Finding better ways to provide the materials the world needs. We are looking for a Project Engineer to join our Engineering Department which is responsible to manage the Capital Projects Portfolio and provide engineering and construction services for Boron Operations and Wilmington Operations. The Engineering Team manages over 60 annual Capital Projects and assist in supporting production with technical knowledge and troubleshooting skills and providing both day to day guidance as well as developing and leading improvement projects.

The Project Engineer will deliver multiple projects during all stages, with a focus on prefeasibility and feasibility stages. This is a great opportunity to have close contact with different projects stakeholders from operations, processing, environmental, safety, maintenance teams to ensure compliance with the RTB Capital plan. Collaborating with operations to troubleshoot and execute optimization changes.

We are an open, connected international team of technical specialists using some of the most exciting data and tools on the planet. We are the world leader in automation and smart mining.

We have technical development programmers that are industry-leading and recognize the unique nature of your role. These provide opportunities to grow your career through a dedicated technical path while being rewarded for your unique skills.

Working in a collaborative community, you will be:

  • Ensure projects are managed with the high attention to safety and in accordance with Rio Tinto Health, Safety and Environmental standards.
  • Actively participate in HSEQ systems such as Critical Risk Management Verifications, Interactions, near hit reporting, incident reporting and analysis, inspections, risk assessments, management review, element championing, etc.
  • Manage multiple projects in coordination with outside engineering groups, contractors or service.
  • Facilitate development of project scopes, schedules, cost estimates and subsequent detailed engineering. Review contracting plans, engineering and contractor selection and procurement strategies for each initiative to ensure successful completion
  • Responsibilities include working with project sponsors and outside contractors to develop detailed scopes of work to include costs, preparing bid documents, establishing job execution plans, and communicating project schedules, milestones, and progress to all relevant stakeholders.
  • Coordinate CEA (Capital Expenditure Authorization) preparation and Project charters with Finance and project sponsors
  • Select and oversee engineering and field contractors to complete projects
  • Support business optimization and cost reduction initiatives and projects
  • Complete MOC, SHEAP, risk assessments, etc. in support of projects and other changes
  • Other technical related duties to meet the needs of the business

What you’ll bring

  • A commitment to the safety of yourself and your team
  • BS University degree in Engineering/Construction Management required
  • Minimum 2 years of Project/Construction Engineering experience in mining or mineral processing engineering or other heavy industrial industry.
  • Proficiency in the use of Microsoft Office software is required
  • Good critical thinking, data analysis and problem-solving skills
  • Effective communication skills including verbal, written and presentation skills
  • Proven ability to work effectively both independently and in a team-based environment
  • Demonstrated willingness to be flexible and adaptable to changing priorities
  • Strong multi-tasking and organizational skills

What we offer

Be recognized for your contribution, your thinking and your hard work, and go home knowing you’ve helped the world progress

  • 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; Generous 401k matching program
  • Attractive share ownership plan
  • Comprehensive leave policies which cover all the moments that matter in life: PTO (paid time off), paid holidays, and paid bereavement leave
  • A generous parental leave policy, which ensures you’re able to spend quality time with your new family
  • Discount programs for leisure purposes and access to Virgin Pulse with incentives supporting your wellbeing
  • Access to our Employee Assistance Program (EAP), which provides confidential counselling or expert guidance for you and your family to help get through life’s challenges

Where you’ll be working

Rio Tinto Borates is a global leader in industrial mineral supply and science. We supply approximately 25% of the world’s demand for refined borates, minerals essential to life and modern living. We seek to create mutual value by working closely with our investment partners and host communities. Our 20 Mule Team Borax brand pays tribute to our first borates mining operation in Death Valley in 1872.

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 http://www.ucis.gov/ for more information.

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