Mining & Natural Resources Visa Sponsorship Jobs in California
California leads the nation in mining innovation, from lithium extraction in the Salton Sea to rare earth minerals in the Mojave Desert. Major employers like Albemarle, Tesla's battery supply chain partn visaers, and renewable energy mineral companies actively sponsor H-1B visa and O-1 visas for specialized mining engineers, geologists, and environmental scientists.
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Supervisor – Mine Operations
- Exposure to multiple groups within Rio Tinto minerals and energy operations
- Join our global leading business offering outstanding personal development & global career opportunities
- Be part of a group that is safety driven and values inclusion – Boron, California
- For California based roles the expected annual salary is $92,240 – $126,830.
About the role
Finding better ways to provide the materials the world needs.
We are looking for a Supervisor - Mine Operations to join the Rio Tinto Minerals Boron Operations Mine Team to maximize the potential of our mining equipment, resources, and the safety of our teams. Our staff and supervision work a 12-hr. schedule, Sunday through Tuesday or Thursday through Saturday and every other Wednesday. This is a fixed schedule for dayshift or nightshift and requires flexibility to work all shifts.
This is a great opportunity to join Rio Tinto Borates as we are a global leader in industrial mineral supply and science. We provide 30 percent 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.
Leading on the frontline is one of the most important jobs in our business and comes with a huge amount of responsibility. We need you to motivate, inspire and keep your people safe and well.
With signature leadership training programs, growing, and developing is more than an opportunity – it is something we actively plan and make happen. Every day our leaders grow, while our rosters are designed to help you live the lifestyle that is right for you and your family.
Reporting to the Mine & Crusher Operation Superintendent and working in a collaborative community, you will be:
- Ensuring a high level of leadership in safety standards and procedures
- Executing mine production plans in a safe and cost-effective manner to ensure targeted quantities are consistently delivered
- Responsible for the allocation of operational resources and directing work of outside consultants and contractors
- Responsible for ongoing training, safety compliance and departmental scheduling and productivity
- Communicating with multiple stakeholder groups working in and around the mine facility
- Contributing to the continuous improvement of the mine and lowering of costs by identifying opportunities for improvement and innovation
What you’ll bring
- A commitment to the safety of yourself and your team
- High School Diploma or GED equivalent
- Minimum 5 years of experience in a related role with increasing responsibility
- Ability to lead and prior experience leading medium to large teams
- Strong problem solving and multi-tasking skills
- Ability to communicate effectively with stakeholders at all levels
It will also be beneficial if you have:
- 3 years of engineering experience
- Prior experience in mining operations and/or exposure to mine planning systems
- Intermediate computer competency (Excel, Word, SAP, etc.)
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.
Mining & Natural Resources Job Roles in California
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Search Mining & Natural Resources Jobs in CaliforniaMining & Natural Resources Jobs in California: Frequently Asked Questions
Which mining & natural resources companies sponsor visas in California?
California's mining sector includes Albemarle Corporation for lithium extraction, Rio Tinto's boron operations in Kern County, and Tesla's mineral supply chain partners. Clean energy companies like Controlled Thermal Resources and Hell's Kitchen Lithium also sponsor visas for mining engineers, geologists, and process engineers working on critical mineral extraction projects throughout the state.
Which cities in California have the most mining & natural resources sponsorship jobs?
Los Angeles and San Francisco dominate due to corporate headquarters and research facilities, while Bakersfield and Ridgecrest offer operational roles near active mining sites. The Imperial Valley region, particularly near the Salton Sea, has emerging opportunities in lithium extraction. Fresno and Sacramento also host mining company regional offices and environmental consulting firms.
How to find mining & natural resources visa sponsorship jobs in California?
Migrate Mate specializes in connecting international professionals with California mining companies that sponsor work visas. The platform filters opportunities by visa type and location, making it easier to identify employers actively hiring foreign nationals for mining engineering, geology, environmental science, and mineral processing roles across California's diverse mining regions.
What visa types are most common for mining & natural resources roles in California?
H-1B visas dominate for mining engineers, geologists, and environmental scientists requiring bachelor's degrees. O-1 visas apply to researchers with extraordinary ability in mineral extraction technology or environmental remediation. TN visas serve Canadian and Mexican mining professionals, while L-1 visas facilitate international mining company transfers to California operations.
Are there specific considerations for mining visa sponsorship in California?
California's strict environmental regulations require specialized knowledge, making foreign expertise valuable to employers. The state's focus on clean energy minerals creates demand for professionals experienced with lithium, rare earth, and battery material extraction. Many positions require security clearances for defense-related mineral projects, which can affect visa eligibility and processing timelines.
What is the prevailing wage for sponsored mining & natural resources jobs in California?
U.S. employers sponsoring a visa must pay at least the prevailing wage, which is what workers in the same role, area, and experience level typically earn. The Department of Labor sets this rate to make sure companies aren't hiring foreign workers simply because they'd accept lower pay than a U.S. worker. It varies by job title, location, and experience. You can look up current prevailing wage rates for any occupation and location using the OFLC Wage Search page.