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Geothermal Engineer Jobs in California (NOW HIRING)

Calpine

Process Control Engineer III

Middletown, CA · On-site

$109K - $139K/yr

CEG), is America's largest generator of electricity from natural gas and geothermal resources with ... Reviews P&IDs, PFDs, HGLs and pump curves to assist engineering with new project designs. Work ...

State Lands Commission

Operations Engineer

Sacramento, CA · On-site

$6.6K - $11K/mo

Some of the engineering review and surveillance is conducted onsite including offshore platforms, remote onshore natural gas locations, geothermal regions of the state, and onshore coastal sites.

Fervo Energy Company

Senior Mechanical Engineer

Oakland, CA · On-site

$115K - $182K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Fervo is working to build the most cost-effective, repeatable geothermal power plants in the world. Joining Fervo's GeoBlock engineering team means solving frontier technical problems with immediate ...

Fervo Energy

Senior Mechanical Engineer

Oakland, CA · On-site

$115K - $182K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Description Fervo is working to build the most cost-effective, repeatable geothermal power plants in the world. Joining Fervo's GeoBlock engineering team means solving frontier technical problems ...

Fervo Energy Company

Director of Software Engineering

Oakland, CA · On-site

$290K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Job Type Full-time Description Fervo Energy is the leading developer of next-generation geothermal ... We design, build, own, and operate geothermal wellfields, pipelines, power plants, and transmission ...

Fervo Energy

Director of Software Engineering

Oakland, CA

$290K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Description Fervo Energy is the leading developer of next-generation geothermal power ... We design, build, own, and operate geothermal wellfields, pipelines, power plants, and transmission ...

Stanfordclimateventures

Senior Mechanical Engineer

Oakland, CA · On-site

$115 - $182/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Description Fervo is working to build the most cost-effective, repeatable geothermal power plants in the world. Joining Fervo's GeoBlock engineering team means solving frontier technical problems ...

City of Santa Clara, CA

Electric Utility Engineer

Santa Clara, CA · On-site

$193K - $246K/yr

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

In addition to using green energy from large-scale wind, solar, geothermal and hydroelectric ... For SVP Engineering and CIP projects Division, this position will be assigned engineering work ...

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Showing results 21-40

All JobsGeothermal Engineer JobsGeothermal Engineer Jobs in California

Geothermal Engineer information

See California salary details

$42.9K

$89.9K

$119.9K

How much do geothermal engineer jobs pay per year?

As of Aug 17, 2026, the average yearly pay for geothermal engineer in California is $89,864.00, according to ZipRecruiter salary data. Most workers in this role earn between $76,500.00 and $102,100.00 per year, depending on experience, location, and employer.

What challenges do geothermal engineers face in their day-to-day work?

Geothermal Engineers often face challenges such as accurately assessing underground resources, managing drilling risks, and addressing environmental or regulatory concerns. The job requires troubleshooting complex mechanical systems and adapting to site-specific geological conditions, which can be unpredictable. Collaboration with environmental scientists, project managers, and construction teams is frequent, so flexibility and clear communication are important. Overcoming these challenges is rewarding and crucial to advancing reliable, sustainable energy solutions.

What does a geothermal engineer do?

A Geothermal Engineer designs, develops, and maintains systems that harness heat from the Earth to generate energy or provide direct heating. They analyze geological data to determine suitable locations for geothermal projects, oversee drilling operations, and optimize the efficiency of geothermal power plants. Their work includes assessing environmental impact, ensuring regulatory compliance, and improving energy extraction techniques.

What skills and qualifications are needed to be a geothermal engineer?

A Geothermal Engineer should possess a strong background in geoscience, thermodynamics, and mechanical or civil engineering, typically holding a bachelor's or master's degree in a related field. Familiarity with modeling software (such as GeoCAD or reservoir simulation tools), geothermal system design, and relevant safety certifications are commonly required. Strong problem-solving skills, teamwork, and effective communication set top candidates apart. These abilities are vital for designing efficient geothermal systems, navigating multidisciplinary project teams, and ensuring safe, cost-effective energy solutions.

What are the most commonly searched types of Geothermal Engineer jobs in California?

The most popular types of Geothermal Engineer jobs in California are:

What are popular job titles related to Geothermal Engineer jobs in California?

For Geothermal Engineer jobs in California, the most frequently searched job titles are:

What job categories do people searching Geothermal Engineer jobs in California look for?

The top searched job categories for Geothermal Engineer jobs in California are:

What cities in California are hiring for Geothermal Engineer jobs?

Cities in California with the most Geothermal Engineer job openings:

Geothermal Engineer jobs near you
Infographic showing various Geothermal Engineer job openings in California as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $89,864 per year, or $43.2 per hour.

Process Control Engineer III

Calpine

Middletown, CA • On-site

$109K - $139K/yr

Full-time

Re-posted 16 days ago

Calpine rating

8.7

Company rating: 8.7 out of 10

Based on 10 frontline employees who took The Breakroom Quiz

Job description

Calpine, a business unit of Constellation Energy Corporation (Nasdaq: CEG), is America's largest generator of electricity from natural gas and geothermal resources with operations in competitive power markets. With 79 energy facilities in operation, Calpine's fleet has the capacity to generate approximately 27,000 MW of electricity - enough to power approximately 27 million homes. Through wholesale power operations and its retail businesses, Calpine serves customers in 22 states and Canada. Its clean, efficient, modern and flexible fleet uses advanced technologies to generate power in a low-carbon and environmentally responsible manner.
The company was established on the premise that a strong commitment to the environment is inextricably linked to excellence in power generation and corporate responsibility. Since its founding in 1984, Calpine has led the power industry in its unwavering commitment to environmental stewardship. In addition, its renewable geothermal plants use steam generated deep below the earth's surface to produce clean, renewable electricity.
Job Summary (includes but is not limited to the following, other duties may be assigned)
Process Control Engineer for Calpine Geysers - Primarily responsible for work on balance of plant and steamfield controls
Job Scope & Technical Excellence
  • Comprehensive knowledge.
  • Seasoned professional with advanced applied experience.
  • Applies advanced skills contributing to knowledge areas within function, but not yet an expert in all.
  • Develop and implement control logic changes on Allen-Bradley ControlLogix systems.
  • Support OT systems as required, including working with virtual servers and network.
  • Lead informal training sessions for Operations and colleagues on logic changes and controls skills.

Decision Making & Impact
  • Makes recommendations on moderately complex issues regarding project components and tasks.
  • May make recommendations on new processes, tools and services; supports and contributes to development of new products, services or techniques.
  • Reviews P&IDs, PFDs, HGLs and pump curves to assist engineering with new project designs.

Work Complexity
  • Works on problems of diverse scope ranging from moderate to complex.
  • Uses independent judgment requiring in-depth analysis of variable factors. Collaborates with senior professionals in selection of methods, techniques, and analytical approach

Self-Management & Leadership
  • Works under limited supervision.
  • Prioritizes own weekly schedule and may guide others in the completion of tasks within clearly defined schedules as set by management.
  • Regularly provides on-the-job skills training to others in complex technical areas.

Process Control Engineer III - Qualifications
  • Bachelor's degree Engineering
  • 10+ yrs related experience
  • Experience with RSLogix, Ovation, ABB controls system design, network design, programming, and maintenance.
  • OEM Field Service or Engineering Service experience is highly desirable.
  • Experience with VMWare ESXi and Cisco IOS a plus
  • Experience reading pump curves and sizing control valves a plus

Salary Information
  • Salary Range - $109,779.00 - $139,968.00

Additional Calpine Information
  • Equal Opportunity Employer of Minorities, Females, Protected Veterans, and Individuals with Disabilities.
  • Calpine is committed to Equal Employment Opportunity and providing reasonable accommodations to applicants with physical and/or mental disabilities. If you are interested in applying for employment and need special assistance or an accommodation to use our website or to apply for a position, please send an e-mail with your request to hrrecruitment@calpine.com. Determination on requests for reasonable accommodation are made on case-by-case basis.

Please view Equal Employment Opportunity Posters provided by OFCCP here.
Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws.
For further information, please review the Know Your Rights notice from the Department of Labor.

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