Sr. Project Engineer

  • Rio Tinto PLC
  • Boron, California
  • Full Time

Senior Engineer, Project Engineering

  • Opportunity to develop your career and work for a global company
  • Contribute to the success of Rio Tinto by applying your technical and professional expertise.
  • Join a company with a world class reputation for safety and a culture that supports inclusion and diversity -Boron, CA
  • For California based roles the expected salary is $122,400-$168,300

About the role

We are looking for a Senior Engineer, Project Engineering, to work in the Project Engineering Department to manage multiple projects during all stages. This position will have close contact with different projects stakeholders from operations, processing, environmental, safety, and maintenance teams to ensure compliance with the RTB Capital plan. Every hour of every shift, your safety and wellbeing is our number one priority. We do the work only if it is safe, and we invest to make sure every member of the team has the quality tools they need to do their job.

  • The Senior Engineer will interact with project owners and project sponsors to scope out and plan the work and to gather and convey information.
  • Most project designs and/or estimates are done by outside engineering firms. A professional relationship and proper control procedures are necessary to foster a responsive and productive design relationship. A number of engineering, construction or manufacturers are used to provide these services for the approximately 60+ annual projects that require this level of support.
  • The Senior Engineer may interact with government agencies such as building permit departments.
  • The Senior Engineer will interact with engineering firms, vendors, Rio Tinto procurement, and contractors to facilitate the design, equipment selection and procurement of projects.
  • Key internal relationships with operations, maintenance groups and Boron Engineering
  • Strong working relationship with H, S, E & Q subject matter experts

About you

To be successfully considered for this role, you will have:

  • BS Degree in Electrical Engineering discipline is preferred.
  • 5 years of experience in mining or mineral processing engineering and operations or other heavy industrial industry.
  • 5 years' experience as Project Engineer. Knowledge of local building codes is a plus.
  • A Project Management Professional certificate is a plus
  • A Professional Engineer certificate valid in California is a plus

It will also be beneficial if you have:

  • Leadership skills including strong communications skills are required as well as the ability to lead a team and cooperatively work within the operating structure.
  • The Senior Engineer must be technically able to understand: process flow diagrams; material and energy balances; piping and instrument diagrams; building, safety and environmental codes; equipment specifications; construction drawings; AutoCAD software; Microsoft Projects; electronic databases/spreadsheets. This knowledge and understanding is used on a daily basis to manage the projects.
  • Ability to manage large and/or multiple simultaneous projects

What we offer

Here is just a glimpse of our industry leading rewards package:

  • A safety-focused and inclusive working environment
  • A competitive salary package with annual cash incentive awards (STIP) for eligible employees
  • Career development & education assistance to further your ambitions
  • Access to top tier family-friendly health and medical programs
  • Excellent retirement plan
  • A comprehensive leave policy that covers all moments that matter in life (vacation/annual, paid parental leave, short term sick leave, paid holidays)
  • Ongoing individual wellbeing support for you and your family for personal and professional matters
  • Generous Rio Tinto employee share program

Where you will be working

This role is located in Boron; CA. Rio Tinto Borates is a global leader in industrial mineral supply and science. We provide 30 per cent of the world's supply of refined borates; remarkable minerals that are essential to life and to modern living.

Also known for its 20 Mule Team Borax brand, Rio Tinto Borates traces its roots to California's Death Valley, where borate deposits were discovered in 1872.

The twenty-mule teams Borax used to haul ore out of the remote desert live on as a symbol of our commitment to innovation. Rio Tinto Borates distinguishes itself through world-class safety, environmental and community practices, and a commitment to constant innovation and improvement.

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.

Every Voice Matters

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.

Job ID: 484994079
Originally Posted on: 7/12/2025

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