---
title: 'Senior Software Engineering Manager at Mainspring Energy'
canonical: 'https://feeny.ai/job/senior-software-engineering-manager-mainspring-energy-menlo-park-7fbswtdem22a'
type: 'job'
last_seen: '2026-09-07'
---

# Senior Software Engineering Manager at Mainspring Energy

- **Company:** Mainspring Energy
- **Location:** Menlo Park, CA
- **Compensation:** $187k–$220k
- **Work type:** onsite
- **Posted:** 2026-08-11
- **Last confirmed live:** 2026-09-07
- **Apply:** https://jobs.lever.co/mainspringenergy/9c970940-6251-41fd-a2c6-c6a77dc54db1

## 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 Senior Engineering Manager at Mainspring, you will lead a high-performing team in a fast-paced startup environment. You will act as a bridge between complex software ecosystems—including Cloud, Embedded, and Controls—and the physical world of mechanical and electrical engineering. This role is ideal for a leader who thrives on shifting priorities and is eager to immerse themselves in deep technical sessions with multi-disciplinary partners to build the future of the net-zero carbon grid.

## Key Responsibilities

- Cross-Functional Leadership: Lead the design and delivery of integrated software solutions, partnering closely with Cloud, Embedded, and Controls teams to ensure seamless system performance

- Strong Execution Skills: Navigate a high-velocity environment by adjudicating technical trade-offs, driving project accountability, and maintaining focus to meet critical company milestones and product roadmaps

- Interdisciplinary Collaboration: Participate in deep-dive technical sessions with embedded and hardware engineering partners, fostering a culture of mutual learning and integrated design excellence

- Team Development: Recruit, mentor, and scale an engineering team capable of solving complex problems in the IoT, Automotive, or Energy sectors

- Operational Discipline: Champion scalable engineering workflows, drive bug triage, and manage validation planning to protect delivery timelines while maintaining high technical rigor

- Strategic Planning & Alignment: Lead the planning and alignment of software roadmaps, ensuring they are synchronized with broader business objectives

- Executive Communication: Provide regular, concise updates to executive leadership regarding project status, roadmap milestones, and technical risks

## Qualifications

- Technical Breadth: Strong foundation in Cloud architectures (AWS or GCP) and Embedded software, with the technical fluency to bridge these domains and effectively lead cross-functional architectural discussions

- Team Leadership: Proven track record of building and leading high-performing, multi-disciplinary teams of full-stack engineers. You have successfully mentored and scaled teams that manage the entire device-to-cloud lifecycle, ensuring robust, scalable, and secure connectivity between edge devices and backend systems

- Management at Scale: Experience managing multiple scrum teams, including distributed or hybrid workforces across multiple timezones, with a focus on fostering communication and alignment in a complex, multi-site environment

- Industry Experience: Proven track record in the IoT, Automotive, or Energy/Utility industries, with a deep understanding of the unique challenges in these sectors

- Startup Mentality: Demonstrated ability to operate effectively in fast-paced environments with shifting priorities and a focus on high-velocity delivery

- Educational Background: Degree in Computer Science, Electrical Engineering, Mechanical Engineering, or a related technical field

- Collaborative Mindset: A proactive desire to learn from and work with hardware disciplines (Mechanical/Electrical) to achieve holistic product goals

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.

## About Mainspring Energy

## Company Overview
- **One-liner**: Mainspring Energy designs and manufactures fuel-flexible linear generators that provide low-emission, dispatchable onsite power for utilities, data centers, and industrial customers.
- **Entity Type**: Private (Series F)
- **Headquarters**: Menlo Park, California, United States
- **Founded**: 2010
- **Founders**: Shannon Miller

## Core Business
- Primary industry: Electric Power Generation
- Target customers: B2B – utilities, data center developers, enterprise, industrial
- Mission statement: "Redefining how local power is delivered to capacity constrained companies and communities" – enabling clean, reliable, and fuel-flexible power.

## Products & Services
- **[Linear Generator (LGen)]**: A flameless, fuel-flexible generator that converts gaseous fuels (natural gas, biogas, hydrogen, propane) into electricity with near-zero NOx emissions. Modular (0.25 MW per unit), fast-ramping (0-100% dispatchable), 46% electrical efficiency (LHV). Standardized 2.5 MW configuration (10 units). Suitable for grid-parallel or grid-independent operation, microgrids, and balancing renewables.

## Market Standing
- **Valuation/Market Cap**: Not disclosed (private company)
- **Key Metrics**: Annual revenue $117M (latest fiscal year); total funding $813M; 407 employees
- **Notable Investors/Partners**: General Catalyst (led Series F, 2025, $258M), Lightrock (led Series E, 2022, $140M), BloombergNEF (grant), and others.
- **Growth Signals**: Powering the largest U.S. EV truck charging depot; >1 GW of capacity trusted by Fortune 500 companies and utilities; headcount growing +3.4% YoY; job postings up +121.4% YoY (62 active openings); recently expanded into data center market.

## Competitive Advantages
- **Fuel Flexibility**: Single generator can seamlessly switch between natural gas, RNG, hydrogen, and propane without hardware retrofits.
- **Near-Zero Emissions**: <1.5 ppm NOx (0.05 lb/MWh) – meets stringent air quality standards.
- **Dispatchability**: 0-100% load following, grid-independent operation, capable of firming renewables.
- **Low Maintenance**: Only two moving parts, no oil changes, modular design reduces downtime.
- **High Efficiency**: 46% electrical efficiency (LHV) across all scales.
- **Fast Deployment**: Factory-built, skid-mounted units enable rapid installation.

## Strategic Focus
- Scaling manufacturing and deployment to meet growing demand from data centers and utilities.
- Advancing hydrogen and biogas compatibility to support long-term decarbonization.
- Expanding standardized 2.5 MW configurations to lower installed cost and accelerate timelines.
- Building a diverse, cross-disciplinary team to drive innovation in power generation.

## Why Work Here
- Culture of inclusion, respect, and collaboration across engineering, operations, and field teams.
- Emphasis on growth: "We invest in your growth because progress requires people who keep getting better."
- Hybrid/Remote options: headquarters in Menlo Park, manufacturing facilities, and remote field service roles.
- Active hiring across engineering (mechanical, electrical, software), operations, supply chain, and field service.
- Competitive salary ranges (e.g., Engineer ~$107k, Controls Engineer ~$109k, Manufacturing Engineer ~$91k) plus benefits.
- Diverse talent origins from Tesla, Stanford, Apple, SunPower, and other top clean energy companies.

## Sources
1. [mainspringenergy.com/company](https://www.mainspringenergy.com/company)
2. [mainspringenergy.com/careers](https://www.mainspringenergy.com/careers)
3. [jobs.lever.co/mainspringenergy](https://jobs.lever.co/mainspringenergy)
4. [linkedin.com/company/mainspringenergy](https://www.linkedin.com/company/mainspringenergy)
5. [mainspringenergy.com/product](https://www.mainspringenergy.com/product)

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