Mainspring Energy

Mainspring Energy

Principal Electrical Engineer - Power Plant Integration Lead

Menlo Park, CA · Principal

Sponsorship not specified$221k-$260kDetected 34 days ago
NLPSupply ChainSystems EngineeringElectrical EngineeringPower ElectronicsLeadership

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odds of building a lasting career here

61Sponsors, lottery-bound
Cap-exempt (no lottery)0
Sponsors this role90
Entry-level history0
PERM / green-card track0
Lottery odds (Level IV)94
Fits your clock70

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.

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H-1B wage level

the lottery is wage-weighted — each level is one more entry

Level IV · 4×
Level I$106,0381 entry
Level II$133,9732 entries
Level III$161,8863 entries
Level IV$189,8214 entries

This range already reaches Level IV — the maximum four lottery entries.

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.

Employer immigration record

from this employer's Department of Labor filings

Files H-1B transfers

4 transfer filings in the last year, covering 4 workers. Median labor-condition decision: 8 days. An employer that already files transfers is one that can take over an existing H-1B.

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

  • This role sits at the intersection of power systems engineering, cross-functional hardware integration, and external vendor management.
  • This includes ownership of the broader site: how generators, inverters, skids, and energy storage come together as a complete and configurable power solution.
  • You will act as the technical anchor, translating high-level single-line diagrams and architectural concepts into robust, mass-manufacturable modular skid-based products.

Responsibilities

  • Demonstrated experience driving the engineering lifecycle of modular hardware systems, including a strong grasp of design-to-cost principles, supplier capacity scaling, field reliability, and configuration control
  • Strong cross-functional leadership skills with a track record of translating diverse technical requirements from electrical, mechanical, and operations teams into a cohesive, manufacturing-ready system design
  • Demonstrated success directing 3rd-party design, engineering, or Contract Manufacturing (CM) partners from initial concept through to sustained volume production

Requirements

  • Bachelor's or advanced degree in Electrical Engineering or a related field
  • 24+ years of direct experience productizing complex, multi-disciplinary industrial systems
  • Strong working knowledge of grid interconnection standards, utility protection schemes, and safety/compliance frameworks (e.g., IEEE 1547, UL 1741 SB/SA, NFPA 70/NEC, NFPA 855)

Compensation

  • $221k-$260k

Benefits

  • Bonus Qualification(s)
  • You will own the technical architecture and vision of how Mainspring power plant sites are built, including full ownership of the modular power skids.

Company info

  • As we scale our deployments from Behind-The-Meter (BTM) commercial microgrids to utility-scale Front-of-the-Meter (FTM) power plants and data centers, we are expanding our system boundaries to provide fully integrated, turn-key power solutions.

This listing is sourced directly from Mainspring Energy's careers page and normalized into a canonical job model.