Mainspring Energy

Senior Electrical Engineer - Inverter & Grid Integration

Menlo Park, CA

hirly Pro

Get in front of the people hiring at Mainspring Energy

Reach the hiring manager at Mainspring Energy on LinkedIn, from your own account
hirly applies to this job for you, with unlimited applications
A resume and cover letter written for this job, unlimited
The hiring manager and recruiter at Mainspring Energy, with contact details

Get Pro for this job →

$49 a month · ₹1,999 for 30 days in India · cancel any time

Get past the screening software and onto a recruiter's desk

hirly rewrites your resume for this job — matching the keywords and skills in the posting, moving your most relevant experience to the top, and writing a cover letter to fit. About 30 seconds.

Keywords matched to this posting
Fit score before you apply
Cover letter included

Matched against 3M live jobs from 220,000+ employers in 200+ countries.

Tailor my resume for this job →

Apply from your AI assistant

Connect hirly to Claude or ChatGPT and ask it to apply to this job. hirly tailors your resume, fills the employer’s form and asks before sending.

See how it works

Some employer sites stop an application at a CAPTCHA or sign-in and hand it back with a link. Applying needs a paid plan. Works with any assistant that supports MCP.

hirly's read of this role

Seniority: Senior
Stated salary: $147,000 – $173,000 per year
Country: US
Work mode: On-site / unstated
First seen by hirly: 21 Sept 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

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

The technology that powers Mainspring’s Linear Generator is unlike any other generator technology on the market. The Linear Generator relies on innovative electrical power and control hardware systems to achieve its best-in-class efficiency while meeting the world’s strictest emissions requirements. You will join a talented team responsible for our electrical system architecture. Your primary focus will be the integration and performance of high-power conversion hardware as it interfaces with both the Linear Generator and the customer’s grid.

We have a highly impactful opportunity for an electrical engineer to be part of the team that is responsible for the Linear Generator’s power delivery and integration into customers’ power systems. This role focuses on system-level architecture and validation rather than ground-up power converter or PCB design. This is a deeply hands-on position; you will be the technical authority in the lab, personally putting grid-interactive inverters through rigorous characterization and stability testing to ensure they meet our high standards before they ever reach a customer site. Your ownership extends through the entire product lifecycle from fine-tuning firmware parameters in a controlled environment to monitoring fleet performance and leading root-cause analysis for complex system-integration challenges in the field.

Original posting on Mainspring Energy's site ↗

Listed on hirly, a job board. hirly is not the employer: Mainspring Energy is hiring for this role.

Browse similar roles

Want this one?

Upload your resume and hirly rewrites it for this job and writes the cover letter — in about thirty seconds, before you sign up.

Tailor my resume for this job