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Machinist Journeyperson

Rio Tinto
Rio Tinto Salary
Boron, CA Full Time
POSTED ON 5/28/2026
AVAILABLE BEFORE 6/25/2026
  • Global mining organization with an exceptional safety culture
  • Competitive salary and benefits
  • Excellent opportunity to join a team of knowledgeable individuals focused on maintaining electrical and instrumentation equipment with the highest degree of safety
  • For California based roles the expected hourly rate is $41.10

About The Role

We are looking for a Machinist Journeyperson to join our group. Under the supervision of Journeymen and Supervisors, the potential employee will conduct maintenance activities of the electrical distribution and instrumentation systems following world class asset management processes and safe work practices.

This role is a great opportunity for a self-motivated tradesperson to learn and develop your career. Reporting to the Instrumentation & Electrical Supervisors you will

Essential Functions

  • Coordinates the Machinist’s function with overall Plant operations.
  • Sets up and operates machine tools such as metal lathes, milling machines, planers, shapers, radial drill presses, grinders and pipe threading
  • machines.
  • Selects proper machine and determines rate of feed, speed, tools to be used and tooling sequence to best accomplish work to be performed.
  • Shapes, turns, drills, bores, mills and grinds various metal stocks and mechanical equipment components such as bearings, shafting, sleeves,
  • etc.
  • Diagnoses equipment problems and performs repairs.
  • Reads, understands and utilizes information contained in drawings for machine tool work and installations and alignment of equipment.
  • Uses micrometers, depth, dial, ring and plug gauges and vernier calipers to verify accuracy of work performed.
  • Maintains personal tools by grinding and shaping.

About You

To succeed in this role, you will have

  • Must possess a high school diploma or equivalent
  • Must show proof of college courses, trade school or apprentice program certificate of completion
  • Two (4) years of experience as a Machinist in a manufacturing environment. Must know safety requirements for IE trade
  • Must possess intermediate English reading and writing skills
  • Must possess basic computer skills
  • Must be able to use fall protection equipment and work at heights
  • Must have a valid California Driver's license
  • Must be skilled in the use of measuring devices and the safe operation of all tools used by a Machinist in manufacturing.
  • Must meet accepted standards for skilled craft work and be capable of working to within a .0001 tolerance level.
  • Must be able to read blueprints and drawings.
  • Will continue to develop knowledge and skills through training to become proficient in operating computerized equipment utilized in the Maintenance industry.

What We Offer

We are committed to providing our employees with a generous benefits package. Be recognized for your contribution, your thinking, your hard work, and go home knowing you’ve helped the world progress, we provide

  • A safety-focused and inclusive working environment
  • Access to top-tier family-friendly health programs including medical, prescription drug, dental, vision, life insurance coverage, and various voluntary benefits.
  • 401(k) matching program (company matched .35 per dollar up to 5% of your base pay)
  • Generous Rio Tinto employee share program, which allows you to purchase Rio Tinto Company shares.
  • Comprehensive leave policies which cover all moments that matter in life PTO (paid time off), paid holidays, and paid bereavement leave.
  • A favorable child-caregiver leave program (Up to 100% salary top-up)
  • Ongoing Employee Assistance Program (EAP) for you and your family; to help in addressing educational opportunities, addiction treatment, depression, stress, domestic issues, financial management, and legal concerns.
  • Discount programs for leisure purposes and access to Virgin Pulse with incentives supporting your wellbeing.

About Rio Tinto

Every idea, every innovation, every little thing the world calls ‘progress’ begins with

a first step, and someone willing to take it explorers, inventors, entrepreneurs. Pioneers.

For nearly 150 years, Rio Tinto has been a company of pioneers – generations of people spanning the globe, all with the grit and vision to produce materials essential to human progress.

Our iron ore has shaped skylines from Shanghai to Sydney. Our aluminum – the world’s first to be certified “responsible” – helps planes fly and makes cars lighter. Our copper helps wind turbines power cities and our boron helps feed the world, and explore the universe.

Our diamonds help us celebrate the best parts of life.

Where you will 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.

Salary : $41

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