Senior Commissioning Technician

Mainspring Energy; Menlo Park (CA); On-site; USD 110,000 - 150,000; Full time

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Benefits

Job summary

Mainspring Energy in Menlo Park seeks a Senior Commissioning Operations Technician to lead planned and reactive service work and transition to technical operation of our systems. You will maintain mechanical integrity of generators, perform configuration and startup of custom linear generator systems, and collaborate with engineers to improve components while upholding safety and quality standards.

Onsite role with opportunities to travel nationwide up to 50% as needed; compensation includes

Qualifications

• 5+ years in mechanical assembly/repair; automotive/aviation/heavy equipment assembly a plus.
• Experience using micrometers, bore gauges, gauge blocks, and torque wrenches.
• Able to stand for long periods, lift up to 50 lbs, and wear PPE.
• Proficient with basic tools and torque specs; documentation of repairs.
• Experience following written and verbal on-site work instructions.
• Excellent communication; Google Workspace knowledge a plus.
• Team player with a proven track record.
• Fast learner, self-motivated, and safety-conscious.
• Valid driver's license; Class C CDL preferred.
• Willing to travel nationwide up to 50%.

Responsibilities

• Mechanically repair and/or maintain generator components per procedures.
• Collaborate with engineers to fix, repair, and redesign components.
• Conduct mechanical inspections and document condition data for debugging.
• Perform technical tasks and site ops with minimal supervision, ensuring safety.
• Configure and startup custom linear generator systems per engineering parameters.
• Use and provide feedback on automation scripts and commissioning toolkits.

Skills

Mechanical assembly/repair

Precision measuring

Team player

Self-motivation

Safety-conscious

Tools

Micrometers

Bore gauges

Gauge blocks

Torque wrenches

Job description

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

Job Overview

Mainspring Energy is seeking a highly motivated, mechanically inclined Senior Commissioning Operations Technician to join our growing Commissioning team. In this role, you will play a direct lead in completing planned and reactive service operations while transitioning into the technical operation of our systems. You will be responsible for the mechanical integrity of our units while increasingly taking on the configuration and startup of custom systems based on Mainspring's linear generators.

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

Mainspring Energy is seeking a highly motivated, mechanically inclined Senior Commissioning Operations Technician to join our growing Commissioning team. In this role, you will play a direct lead in completing planned and reactive service operations while transitioning into the technical operation of our systems. You will be responsible for the mechanical integrity of our units while increasingly taking on the configuration and startup of custom systems based on Mainspring's linear generators.

Responsibilities

• Mechanically repair and/or perform maintenance on components and assemblies that make up our generators in accordance with procedures and build checklists in order to meet customer requirements
• Collaborate with engineers to fix, repair, and redesign components and assemblies
• Conduct mechanical inspections of recently installed units, documenting condition information for use by our team for debugging or troubleshooting
• Execute technical tasks and site operations with minimal supervision in variable environmental conditions, demonstrating self-motivation and a strong commitment to safety
• Perform initial configuration and startup of custom linear generator systems based on established engineering parameters
• Utilize and provide feedback on automation scripts and commissioning toolkits to streamline unit onboarding and testing

Required Qualifications

• Minimum of 5 years of experience with mechanical assembly and/or repair. Experience with automotive, aviation, and/or heavy equipment (i.e. HVAC, elevators/lifts, or industrial equipment) assembly a plus
• Experience with precision measuring, down to .001”, using micrometers, bore gauges, gauge blocks, etc. Also, familiarity with torque wrenches and documentation of repairs performed
• Candidates must be able to stand for long periods of time, lift to 50 lbs., and wear required PPE
• Must have knowledge of how to use and maintain basic tools, such as torque wrenches and torque specifications
• Must have experience with following written and verbal work instructions while on‑site
• Excellent communication skills, software knowledge of Google Workspace is a plus
• A proven track record for the ability to work well with others as part of a dynamic team
• Ability to learn quickly, operate with minimal supervision, demonstrating self-motivation and a strong commitment to safety
• Valid Driver’s license required; Class C Commercial Driver’s License preferred
• Willingness and ability to travel nationwide up to 50% of the time

Bonus Qualifications

• Ability to troubleshoot complex technical issues using a combination of mechanical skill and system‑level data
• Knowledge of electrical power distribution and industrial control systems to better assist with system‑level testing
• Experience interacting directly with customers in a technical capacity

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.

onsite at our Menlo Park HQ . The salary will be adjusted to reflect local market conditions based on employee location as well as the experience of the employee. Along with the base salary, Mainspring offers pre‑IPO stock options + benefits.