Mainspring Energy
Direct Lever career site

Sustaining Controls Engineer

Location
Menlo Park, CA
Listed
Today

Overview

The Sustaining Controls Engineer will play a crucial role in the success of our product automatically and reliably fulfilling customers' electricity demand. You will work closely with cross-functional teams to diagnose and resolve issues, differentiate between mechanical, electrical, and software-related problems, and document solutions to increase product reliability and reduce maintenance needs. This position is ideal for a multidisciplinary engineer who enjoys working on complex systems and has a keen eye for detail.

Responsibilities

  • Manage, document, and resolve fleet issues ensuring clear communication and follow-up on resolutions and improving the process
  • Diagnose root causes of system issues, distinguishing between mechanical, electrical, and software-related problems
  • Categorize, systematize, and address gaps in automated system behavior
  • Collaborate with cross-functional teams to provide technical support and enhance system behavior
  • Debug and troubleshoot existing control algorithms to improve system performance and reliability
  • Analyze and understand C++ code to interpret behavior
  • Implement fixes to field issues in C++ code, and test them in simulation and laboratory environments
  • Adjust feature designs to address field issues
  • Use Python for data analysis, scripting, and system diagnostics
  • Tune control gains and calibrate systems, documenting the process for future reference
  • Identify and address gaps in system performance, ensuring continuous improvement
  • Support reliability and manufacturing testing, contributing to the system's life cycle maintenance

Qualifications

  • Experience in successful root cause analysis of complex software-mechatronic systems
  • Driven and self-directed systems-thinker responsible for creating or improving effective sustaining engineering processes
  • Excellent communicator with demonstrated collaboration across multidisciplinary teams
  • Degree in mechanical or electrical engineering with controls focus
  • 2-5 years of experience

Additional information

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.

Pay and benefits

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.

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
Read the original posting

From Mainspring Energy's careers page, first listed on Rolev.ai on November 12, 2026. Rolev.ai is not the employer.

How Rolev.ai helps with this application

Rolev.ai is a job search and application tool for US job seekers. For this Sustaining Controls Engineer role at Mainspring Energy, it shows how your resume fits, tailors your resume to the posting, and prepares the application for you to review.

  • See how you fit

    Openings from employer career sites are ranked against your whole resume—and searchable inside Claude, ChatGPT, and Cursor via Rolev.ai MCP.

  • Tailor without inventing

    Every change to your resume is checked against your original. New experience goes in only with your yes—zero fabricated claims.

  • Draft the full kit

    Tailored and Full Match resumes, role-specific cover letters, and answers to employer screening questions are prepared in seconds.

  • 1-Click Extension Autofill

    The Chrome extension fills the employer's Greenhouse, Workday, Lever, or Ashby form in 1 click. You review it and press Submit.

Common questions

Where is the Sustaining Controls Engineer job at Mainspring Energy located?

This Sustaining Controls Engineer position at Mainspring Energy is located in Menlo Park, CA. Always check Mainspring Energy's application page for specific state eligibility or relocation policies.

How do I apply for the Sustaining Controls Engineer position at Mainspring Energy?

This listing links directly to Mainspring Energy's Lever application page. You can apply directly on Mainspring Energy's site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Lever application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.