Mainspring Energy
Polymer & materials science hiring snapshot · last 5 months
Open roles (3)
Degree requirements
Top material classes
Most-requested techniques
Role mix
Where they hire
Industries
Work arrangement
Visa & eligibility signals
Sponsorship signals come from posting language plus historical DOL Labor Condition Application data. Confirm specifics with the recruiter.
H-1B filings for scientists and engineers
Mainspring Energy filed 19 H-1B labor applications for scientist and engineer roles from Jan to Dec 2025, at a median filed pay of $119K a year.
| Title filed | Filings | Median filed pay |
|---|---|---|
| Mechanical Design Engineer | 2 | · |
| Staff Supplier Quality Engineer | 2 | · |
| Senior Mechanical Engineer | 2 | · |
| Associate Mechanical Design Engineer | 2 | · |
| Supplier Quality Engineer | 1 | · |
| Sr. Field Quality Engineer | 1 | · |
By occupation: Mechanical engineers 11 · Industrial engineers 7 · Other engineers 1. Worksites: CA 19.
From U.S. Department of Labor Labor Condition Application disclosure data, certified filings only, in chemist, materials, chemical and mechanical engineering, physics, R&D management and science faculty occupations. A filing is a record of past hiring, not a promise about any role. Pay shown needs 3 filings. Compare every employer's filings.
Posting volume · last 5 months
4 roles posted across 5 months, averaging 0.8/month.
