Mainspring Energy
Electrical Engineer, Electronics Design
Menlo Park, CA · Mid
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odds of building a lasting career here
Sponsors, but it's cap-subject — you still face the weighted lottery (~61% per draw at Level IV). Good if you win; have a cap-exempt backup on your list.
Lottery odds assume a STEM candidate.
Personalize to your clock →H-1B wage level
the lottery is wage-weighted — each level is one more entry
$9,023 more — $133,973 — moves this role to Level II and 2 lottery entries. That figure is inside the range the employer already advertised.
Based on the DOL prevailing wage for this occupation and worksite, a base salary of $133,973 would place this position at wage Level II. That figure is within the posted range, and I'd like to target it. This role classifies under "Electrical Engineers" for prevailing-wage purposes.
DOL prevailing wage, 2026-27 wage year · Electrical Engineers (17-2071) · San Francisco-Oakland-Fremont, CA. Wage level is derived by USCIS from the offered wage, occupation and worksite; the occupation shown is inferred from the job title.
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Sourced from Department of Labor LCA, PERM and prevailing-wage disclosure data. Employer matching is by name, so figures may be split across an employer's legal entities. Absence of a filing means none appears in our copy of the data, not that none exists.
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About the role
- 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.
- Do you prefer the challenge of owning complex, low-voltage control systems and guiding cross-functional teams through technical hurdles over routine, single-phase component tweaking?
- We have a high impact opportunity for an electronics engineer to shape the future of the Linear Generator's electrical control hardware systems.
Responsibilities
- Strong fundamentals in analog/mixed-signal design, including operational amplifiers, ADCs, and hardware filtering (anti-aliasing, bandpass, etc.)
- Experience performing component derating analysis, worst-case tolerance stack-ups, and Design Failure Mode and Effects Analysis (DFMEA)
- Demonstrated ability to drive projects forward from initial requirements through production
- A "collaborate-first" mindset with strong communication skills across diverse technical teams and personalities
- Experience in the full hardware development life cycle of PCBA's and electrical assemblies, from requirements development to manufacturing support
Requirements
- 2+ years of experience with a Bachelor's degree, or 1+ years of experience with a Master's degree, in Electrical Engineering or a related field
- Proven hands-on experience designing, troubleshooting, and realizing low-voltage electrical hardware (e.g., DC/DC converters, relays, e-fuses, and MOSFETs)
Nice to have
- Familiarity with hardware reliability and environmental validation testing (e.g., HALT, thermal chamber testing, Hipot, vibration)
- Experience working in a startup or rapid product development environment
- Familiarity with project management and documentation tools (e.g., Jira, Confluence)
- Basic programming or scripting experience (Python, C, or C++) specifically for automating lab bench tests or debugging hardware
- Studies have shown that some people are less likely to apply to positions unless they meet every listed requirement.
- In more traditional words, Mainspring Energy, Inc is an Equal Opportunity Employer.
- Does your experience not meet all of our posted requirements?
- Proficiency with PCBA schematic capture and PCB design tools (Altium strongly preferred)
Compensation
- 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.
This listing is sourced directly from Mainspring Energy's careers page and normalized into a canonical job model.