Mainspring Energy
Senior Electrical Engineer, Electronics Design
Menlo Park, CA · Senior
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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
$14,886 more — $161,886 — moves this role to Level III and 3 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 $161,886 would place this position at wage Level III. 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
- Debug and troubleshoot complex hardware issues that arise across field deployments, test labs, and the production floor
Responsibilities
- These electrical hardware systems are designed by a talented team of electrical engineers that own hardware design from initial concept through test and manufacturing.
- Low-Voltage Hardware Design: Design low-voltage ( Bring-Up & Validation: Own the full bring-up, validation, and qualification of your custom electrical hardware designs
- Technical Reviews: Lead cross-functional design reviews to present concepts, align requirements, and secure approvals
- Design for Reliability: Partner closely with reliability engineers to analyze hardware performance and continuously increase system robustness
- Manufacturing Collaboration: Work directly with our New Product Introduction (NPI) team and external suppliers to optimize designs for manufacturability (DFM) and testability (DFT)
- Cross-Domain Integration: Interface with high-voltage hardware teams and define requirements for cabling and embedded firmware support
- Team Growth: Learn complex design concepts and mentor peers while collaborating with a world-class engineering team
Requirements
- 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
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?
- 5+ years of experience with a Bachelor's degree, or 4+ years of experience with a Master's degree, in Electrical Engineering or a related field
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.
Company info
- Low-Voltage Hardware Design:
- Design low-voltage (
- Bring-Up & Validation:
- Own the full bring-up, validation, and qualification of your custom electrical hardware designs
- Technical Reviews:
- Lead cross-functional design reviews to present concepts, align requirements, and secure approvals
- Complex Diagnostics:
- Design for Reliability:
- Partner closely with reliability engineers to analyze hardware performance and continuously increase system robustness
- Manufacturing Collaboration:
- Work directly with our New Product Introduction (NPI) team and external suppliers to optimize designs for manufacturability (DFM) and testability (DFT)
- Cross-Domain Integration:
- Interface with high-voltage hardware teams and define requirements for cabling and embedded firmware support
This listing is sourced directly from Mainspring Energy's careers page and normalized into a canonical job model.