Mainspring Energy · 10 hours ago
Staff Mechanical Engineer - Exhaust System
Menlo Park, CA
Full-time
Onsite
Lead/Staff
$148K/yr - $170K/yr
8+ years expMainspring Energy is revolutionizing power generation with innovative technology. They are seeking a Staff Mechanical Engineer to lead the design and development of the exhaust system for their Linear Generator, focusing on performance, acoustics, and structural dynamics.
Clean EnergyEnergyOil and Gas
Responsibilities
Architect and Lead: Own the technical vision and development lifecycle for our low-emission exhaust subsystems. You'll guide architectural decisions, lead advanced design and analysis (FEA/CFD), and drive projects from concept to completion
Pioneer New Solutions: Drive innovation in our exhaust system technology. You'll develop creative solutions for extreme temperature materials, robust strategies for vibration and durability, and novel techniques for acoustic silencing and emissions control
Mentor and Guide: Lead and inspire a talented, cross-functional team, mentoring junior engineers and defining best practices. You'll foster a collaborative environment to optimize system integration and performance
Define and Validate: Architect and execute comprehensive validation campaigns to ensure your designs exceed the highest standards for performance, reliability, and safety in the most demanding conditions
Shape Our Technology Roadmap: Stay on the cutting edge of power generation and exhaust system technology, championing new ideas and strategies that enhance performance, reduce cost, and increase reliability for our clean energy solution
Qualification
Required
Deep expertise in designing for high-temperature and high-vibration environments and a strong intuition for failure analysis
A mastery of engineering fundamentals in thermo-fluid system design and structural mechanics, backed by extensive experience in thermal management, stress, and vibration analysis
A proven ability to design for long-term durability and reliability in harsh operating conditions
Areas where you can make a major impact include acoustic analysis and muffler design, or architecting and integrating emissions control systems
Expertise with a 3D CAD package (we use Solidworks) and a deep understanding of GD&T and PDM systems
Advanced knowledge of materials and manufacturing processes (sheet metal, welding) and the ability to anticipate complex DFM challenges
A strong background in defining test requirements and interpreting complex data to drive design
A degree in Mechanical Engineering or a related field
An extensive background in mechanical design and a track record of technical leadership, typically demonstrated by 8+ years of experience
Significant experience leading complex hardware projects from concept to production, preferably in demanding fields like power generation, industrial equipment, or engine systems
A strategic mindset and a passion for turning ambitious ideas into functional, real-world solutions
Benefits
Pre-IPO stock options
Benefits
Company
Mainspring Energy
Mainspring Energy provides power generation technology using linear generators for clean energy.
201-500 employees
H1B Sponsorship
Mainspring Energy has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (40)
2024 (23)
2023 (13)
2022 (12)
2021 (6)
Funding
Current Stage
Late StageTotal Funding
$813MKey Investors
General CatalystUS Department of EnergyBloombergNEF
2025-04-14Series F· $258M
2024-10-22Grant· $87M
2023-04-17Grant
Leadership Team
Shannon Miller
CEO and Founder
Adam Simpson
CCO and Founder
Recent News
Crunchbase News
2025-12-17
Company data provided by crunchbase