Mining & Natural Resources H-1B Sponsorship Jobs in California
H-1B visa sponsorship jobs in California's mining and natural resources sector span petroleum engineering in Bakersfield, environmental consulting in Sacramento, and geoscience roles with companies like Chevron, Occidental Petroleum, and SLB. California's oil fields, geothermal resources, and strict environmental compliance requirements create sustained demand for internationally trained specialists.
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Production Supervisor
- Opportunity to develop your career and work for a global company
- Contribute to the success of Rio Tinto by applying your technical and professional leadership expertise
- Join a company with a world class reputation for safety and a culture that supports inclusion and diversity – Wilmington, CA
- For California based roles the expected annual salary range $92,240 – 126,830
About the role
We are looking for a Production Supervisor to lead and develop a high performing team while fostering a strong safety culture and building capabilities. This includes supervision of all area personnel and accountability of all area resources. The supervisors’ main focus is to lead the safe, efficient and sustainable production of refined borates.
This role is a great opportunity for an enthusiastic individual to drive and optimize operational performance. Working and reporting to the Superintendent, you will be:
- Ensuring a productive and safe workplace is maintained, complying with Rio Tinto and Statutory Safety requirements.
- Identifying areas where improvement to safety performance is necessary and initiating this change within the appropriate teams and areas.
- Taking ownership over efficient/effective problem solving, decision-making, and action at the right levels.
- Ensuring roles and responsibilities are clearly understood and setting performance targets to encourage the necessary/desired behaviors.
- Responsible for directing production employees and operations in accordance with the production plan and business needs to achieve quality and quantities of finished goods necessary to meet customer demands.
- Providing leadership through team building, planning, and setting key deliverables.
- Interfacing with planners and fellow Supervisors to assist in continual improvement.
- Ensuring work is completed in accordance with the Collective Bargaining Agreement and soliciting input from team members.
- Supervising activities on night shift and weekends.
About you
To be successfully considered for this role, you will have:
- High School Diploma or equivalent, combined with solid relevant experience, but more advanced degree preferred.
- 5+ years of experience in production/refinery operations/maintenance or a related field.
- Experience in a unionized environment.
- Excellent computer skills, knowledge of MS Office, Excel & SAP
- Proficiency in English
- Ability to obtain a TWIC card from TSA
- Beneficial if you have knowledge of refinery equipment, subsystems, lubrication properties and equipment troubleshooting
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 6% 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.
Where you will be working
This role is based in the Port of Los Angeles in the city of Wilmington, California. This historical site is one of the oldest operations in the Port of LA, some employees are third generation workers at this operation. The southern California area offers a vast array of activities for every lifestyle from camping, surfing, fishing, hiking, family parks, sports arenas, concerts and much more.
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.
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.
H-1B Mining & Natural Resources Job Roles in California
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Search Mining & Natural Resources Jobs in CaliforniaMining & Natural Resources H-1B Sponsorship Jobs in California: Frequently Asked Questions
Which mining and natural resources companies sponsor H-1B visas in California?
Companies with documented H-1B visa Labor Condition Application filings in California's mining and natural resources sector include Chevron, Occidental Petroleum, SLB (formerly Schlumberger), and environmental consultancies such as Tetra Tech and AECOM. Smaller operators in the Kern County oil fields and geothermal developers in the Imperial Valley also file H-1B petitions, though less frequently than major integrated energy companies.
Which cities in California have the most mining and natural resources H-1B sponsorship jobs?
Bakersfield is the primary hub for petroleum-focused H-1B roles, given its position at the center of the San Joaquin Valley oil fields. Sacramento draws environmental scientists and regulatory specialists tied to state agency work and consulting firms. Los Angeles and San Ramon host corporate headquarters for major energy companies that centralize technical hiring, while El Centro and Calipatria see activity around geothermal operations.
What types of mining and natural resources roles typically qualify for H-1B sponsorship?
Roles that commonly qualify include petroleum engineers, geologists, geophysicists, environmental engineers, mining engineers, and hydrologists. These positions typically require at least a bachelor's degree in a directly related field, meeting the H-1B specialty occupation standard. Technician and equipment-operator roles generally do not qualify because they lack the degree requirement. USCIS evaluates each petition based on the specific job duties and educational prerequisites.
How do I find mining and natural resources H-1B sponsorship jobs in California?
Migrate Mate lets you filter specifically for H-1B-sponsored mining and natural resources roles in California, surfacing employers with verified Labor Condition Application filing history in that sector. This means you can see which Bakersfield petroleum firms, Sacramento environmental consultancies, or Imperial Valley geothermal operators have actively sponsored H-1B workers, rather than guessing from generic job postings that rarely disclose sponsorship status.
Are there California-specific considerations for H-1B sponsorship in mining and natural resources?
California's stringent environmental regulations under the California Environmental Quality Act and Air Resources Board standards create demand for compliance specialists, which can support H-1B petitions when roles require advanced technical degrees. The state's phased approach to reducing oil extraction also means some traditional drilling roles are declining while environmental remediation and renewable energy transition positions are growing. Prevailing wage levels in California tend to be higher than national averages, which employers must meet when filing the Labor Condition Application with OFLC.
What is the prevailing wage for H-1B 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.