Hiring.Camp

Mechanical Engineer

Mainspringenergy

·

Aug 6, 2026

Apply
Salary
$119k – $140k/yr
Location
Menlo Park, CA
Workplace
Onsite
Department
Mechanical Engr
Source
Lever

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

About the Role

Mainspring is seeking a Mechanical Engineer to own defined-scope mechanical engineering tasks, workstreams, or moderate-complexity projects for our Linear Generator platform. In this role, you will design mechanical hardware, support analysis and testing, drive assigned work through validation and release, and work cross-functionally with engineering, manufacturing, quality, supply chain, test, and service teams.

This role is intended for engineers who have developed practical mechanical engineering experience through multiple design, analysis, test, release, or implementation cycles. A strong candidate should be able to independently own defined-scope engineering work, apply sound mechanical fundamentals, identify common risks, communicate clearly, and follow through on deliverables with support available for ambiguity, complex tradeoffs, or higher-risk decisions.

Candidates who are still primarily learning engineering fundamentals, company processes, and task-level execution may be better aligned to an Associate Mechanical Engineer role, while candidates who have already demonstrated independent ownership of significant projects, subsystems, or technical workstreams may be better aligned to a Senior Mechanical Engineer role.

Skills

SolidWorks

Similar Jobs

30

Mechanical Engineer

Smartmanagedsolutions 1734694596·London, England

Today

Mechanical Engineer

Wabtec·West Melbourne, Florida·Hybrid

Today

Mechanical Engineer

Konnekt·Malta, Paraíba·Onsite

Today

Mechanical Engineer

Vortex Aquatic Structures International Inc.·Canada·Hybrid

1d ago

Mechanical Engineer

Epta Deutschland·Qingdao, Shandong·Onsite

1d ago

Mechanical Engineer

Shawharbor·Adams, New York·Hybrid

1d ago

Mechanical Engineer

Ecolab·CAN-Calgary Office Quarry Park, Canada·Hybrid

1d ago

Mechanical Engineer

NGC Transmission Equipment (America), Inc.·Fort Worth, Texas

1d ago

Mechanical Engineer

Samson Rose·El Segundo, California·Onsite

1d ago

Mechanical Engineer

Abb·Stockholm, Sweden

1d ago

Mechanical Engineer

Halter·Auckland, New Zealand·Onsite

1d ago

Mechanical Engineer

HiNext·Sweden·Onsite

1d ago

Mechanical Engineer

Aurecongroup·Ho Chi Minh City, Vietnam·Hybrid

1d ago

Mechanical Engineer

Sea Box, Inc.·New Jersey, US·Onsite

1d ago

Mechanical Engineer

Disher·Indianapolis, Indiana·Hybrid

1d ago

Mechanical Engineer

Evolvetoday·Bucharest, București·Onsite

1d ago

Mechanical Engineer

Kleinfelder·Perrysburg, OH

2d ago

Mechanical Engineer

Pae·Qatar·Onsite

2d ago

Mechanical Engineer

Lego·Singapore Hub·Hybrid

2d ago

Mechanical Engineer

Sulzer·Pasadena, Texas·Onsite

2d ago

Mechanical Engineer

Saft·Valdosta, Georgia

2d ago

Mechanical Engineer

Etched·San Jose, California·Onsite

2d ago

Mechanical Engineer

Aurecongroup·Ho Chi Minh City, Vietnam·Hybrid

2d ago

Mechanical Engineer

Sedgman·Perth, Western Australia·Hybrid

2d ago

Mechanical Engineer

Haemonetics·Batu Kawan, Penang

3d ago

Mechanical Engineer

Wardstone·El Segundo, California

3d ago

Mechanical Engineer

BPA·Canada

4d ago

Mechanical Engineer

Muon Space·San Jose, California·Hybrid, Onsite

4d ago

Mechanical Engineer

Robust.ai·San Carlos, Cojedes·Onsite

4d ago

Mechanical Engineer

Mission Critical Group·North Wales, Pennsylvania·Onsite

4d ago