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Building Service Engineer Jobs in California (NOW HIRING)

Mainspring Energy

Field Service Engineer

Menlo Park, CA · On-site

$108K - $123K/yr

Proactive Collaboration Job Overview As a Field Service Programs & Operations Engineer at ... At Mainspring, we are committed to building a diverse, inclusive, flexible, and collaborative ...

EPC Power Corporation

Technical Service Engineer

Poway, CA · On-site

$95K - $145K/yr

... building out tooling for troubleshooting. Requirements Responsibilities * Provide technical support to the field team and customers, addressing and resolving complex technical issues or inquiries ...

EPC POWER CORP.

Technical Service Engineer

Poway, CA · On-site

$95K - $145K/yr

... and building out tooling for troubleshooting. Requirements: Responsibilities * Provide technical support to the field team and customers, addressing and resolving complex technical issues or ...

EPC POWER CORP.

Technical Service Engineer

Poway, CA · On-site

$95K - $145K/yr

... building out tooling for troubleshooting. Requirements Responsibilities * Provide technical support to the field team and customers, addressing and resolving complex technical issues or inquiries ...

Lumafield

Field Service Engineer

San Francisco, CA · On-site

$75K - $95K/yr

We are engineers with deep experience across the product development cycle, from initial ideas to ... We're building for greater intelligence, autonomy, and speed. For deeper vision, operational ...

Lumafield

Field Service Engineer

San Francisco, CA · On-site

$75K - $95K/yr

We are engineers with deep experience across the product development cycle, from initial ideas to ... We're building for greater intelligence, autonomy, and speed. For deeper vision, operational ...

Lumafield

Field Service Engineer

San Francisco, CA · On-site

$75K - $95K/yr

We are engineers with deep experience across the product development cycle, from initial ideas to ... We're building for greater intelligence, autonomy, and speed. For deeper vision, operational ...

Nova Ltd.

Senior Field Service Engineer

Fremont, CA · On-site

$56 - $62/hr

The Sr. Field Service Engineer will perform advanced engineering and technical activities while ... We value building strong relationships. You'll be the face of Nova, working closely with customers ...

Dexterity

Field Service Engineer

Redwood City, CA · On-site

About Dexterity Dexterity is the enterprise Physical AI company building intelligent robots for ... About the Role As a Field Service Engineer , your primary mission is keeping Dexterity's robotic ...

Dexterity

Field Service Engineer

Redwood City, CA

About Dexterity Dexterity is the enterprise Physical AI company building intelligent robots for ... About the Role As a Field Service Engineer , your primary mission is keeping Dexterity's robotic ...

LD Power Automation

Field Service Engineer

Wilmington, CA · On-site

$38.46 - $57.69/hr

... engineering company specializing in marine and industrial electrical and control services and ... Our commitment to building strong, long-term relationships is founded on trust and a deep ...

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How much do building service engineer jobs pay per hour?

As of Sep 13, 2026, the average hourly pay for building service engineer in California is $31.93, according to ZipRecruiter salary data. Most workers in this role earn between $25.14 and $36.06 per hour, depending on experience, location, and employer.
Building Service Engineer jobs near you
Infographic showing various Building Service Engineer job openings in California as of August 2026, with employment types broken down into 1% As Needed, 74% Full Time, 20% Part Time, and 5% Contract. Highlights an 89% Physical, 1% Hybrid, and 10% Remote job distribution, with an average salary of $66,404 per year, or $31.9 per hour.

Field Service Engineer

Menlo Park, CA • On-site

Mainspring Energy
Clean Energy Power Generation • 201 - 500 employees
Learn more about Mainspring Energyexternal

$108K - $123K/yr

Other

Posted 4 days ago

Job description

About Mainspring
Mainspring Energy manufactures and delivers fuel-flexible, low-emissions local power solutions that rapidly add new capacity and deliver reliable, affordable, and sustainable electric power. The company began commercial shipments of its Mainspring Linear Generators in 2020 and today has hundreds of megawatts in advanced development and field operations for leading Fortune 500 companies, data centers, and utilities. Mainspring also partners with global energy leaders including AEP, NextEra Energy Resources, Schneider Electric, and more.
The core values that ground our work, guide our decisions, and connect us together:
  • Pragmatic Optimism
  • Excellence without Ego
  • Proactive Collaboration

Job Overview
As a Field Service Programs & Operations Engineer at Mainspring Energy, you will serve as a technical leader supporting the Operations & Maintenance organizations. You will bridge Field Service, Operations, Quality, and Engineering by translating field challenges into practical technical solutions, scalable service programs, and improved maintenance practices.
This is a field-facing and hands-on engineering role. You will work directly with Field Service Technicians, Supervisors, and Managers to support advanced troubleshooting, develop field service tooling and processes, and plan and execute special projects across the fleet. The role will also support the development and implementation of programs that improve fleet availability, safety, reliability, and field execution.
This position does not have direct people management responsibility but will be expected to provide technical leadership, mentorship, and cross-functional coordination.
Responsibilities
  • Develop and implement Field Service programs, procedures, and processes that improve maintenance execution, safety, reliability, and fleet availability
  • Provide advanced technical troubleshooting support for complex mechanical, electrical, controls, and system-level issues
  • Serve as a technical bridge between Field Service and Engineering, translating field issues into engineering requirements and bringing engineering solutions into field execution
  • Identify, develop, test, and deploy specialized Field Service tooling, test equipment, fixtures, and other resources that improve safety and service efficiency
  • Lead and support special projects including fleet retrofits, service campaigns, and major maintenance initiatives
  • Analyze field failures, maintenance activities, and fleet performance data to identify recurring issues and opportunities for improvement
  • Develop and improve maintenance procedures, troubleshooting guides, work instructions, and other technical documentation
  • Collaborate with Reliability Engineering, Product Engineering, Supply Chain, Manufacturing, Safety, and Field Service leadership to resolve operational and technical issues
  • Mentor and provide technical guidance to Field Service Technicians and Supervisors
  • Support significant customer issues, outages, and technical events as needed
  • Travel to customer sites and be actively engaged in field activities as required

Qualifications
  • Bachelor's degree in Mechanical Engineering, Electrical Engineering, Systems Engineering, or a related technical field
  • 8+ years of experience in Field Service, power generation, O&M, industrial maintenance, commissioning, reliability engineering, or a related technical environment
  • Experience troubleshooting complex mechanical, electrical, controls, or electromechanical systems
  • Experience working directly with field technicians, maintenance personnel, or other hands-on technical teams
  • Experience developing technical procedures, maintenance programs, tooling, or field solutions
  • Strong project planning, coordination, and execution skills
  • Strong analytical and problem-solving skills
  • Effective communication and collaboration skills, with the ability to influence across technical and operational organizations
  • Willingness and ability to work hands-on with equipment in field environments and customer sites
  • Strong commitment to safety and operational excellence

Preferred Qualifications
  • Previous experience as a Field Service Engineer, Senior Field Service Technician, Commissioning Engineer, or O&M Engineer
  • Experience in power generation, distributed energy, utilities, or industrial equipment
  • Experience with generators, engines, turbines, electrical distribution systems, controls, or other complex electromechanical systems
  • Experience with field tooling or diagnostic equipment development
  • Experience with Salesforce Field Service, Quickbase, CMMS/EAM, ERP, SQL, Power BI, or similar platforms
  • Experience supporting high-visibility enterprise customers

$108,000 - $123,000 a year
Does your experience not meet all of our posted requirements? Studies have shown that some people are less likely to apply to positions unless they meet every listed requirement. At Mainspring, we are committed to building a diverse, inclusive, flexible, and collaborative environment, so if you want to help us transition the world to clean and affordable electricity, and don't meet all posted requirements for a particular role, we'd still love to hear from you. Mainspring can sometimes be flexible enough to shift responsibilities for the right person, or otherwise identify open or upcoming roles that may better fit your professional background.
In more traditional words, Mainspring Energy, Inc is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.
This compensation and benefits information is based on Mainspring Energy's estimate as of the date of publication and may be modified in the future. We generally do not negotiate on salary once we have made an offer. The level of pay within the range will depend on a variety of job-related factors that may include location, relevant prior experience and/or education, or particular skills and expertise. New hires joining the company tend to be paid within the starting base pay range noted above, with opportunities to increase pay over time based on development of additional skills, competencies, and company-specific knowledge.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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