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Field Service Technician (San Diego, CA)

Mainspringenergy
San Diego, CAfull_timePosted 28 Apr 2026

About the role

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
We are searching for highly motivated, mechanically inclined individuals to join our growing Field Service team. In this position, you will play a direct role in completing planned and reactive service operations on our generators. In this position, you will play a key role in maintaining system uptime, availability, and performance for deployed units on customer sites in a specific region. You will train at our headquarters in Menlo Park, CA, and be assigned to a particular service region requiring travel. For those inclined, there are ample growth opportunities within Mainspring, and we offer full benefits, including vacation and sick time, 401K, and pre-IPO stock options.

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Company

Mainspringenergy

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