R&D Test Engineer
Quick Summary
Mainspring is seeking an open-minded, curious, and highly motivated R&D Test Engineer who likes to solve challenging cross-functional problems in both a research and production environment.
Mainspring is seeking an open-minded, curious, and highly motivated R&D Test Engineer who likes to solve challenging cross-functional problems in both a research and production environment. In this role, you will design and execute tests on the Linear Generator, focusing on new electrical and software changes that improve product capabilities and performance.You will lead critical sub-system and system-level development and validation tests on new releases of our product and gain exposure to the entire system, including electrical and mechanical components, software, and controls. The breadth of this role is perfect for an engineer or researcher who wants to use their advanced experimental and analytical skills in a fast-paced product development environment.
Location & Eligibility
About this job
- Pay per year
- $108,768–$123,600 a year
- 10% below the $129,500 median for Qa Engineer jobs on Jobera (798 salaries).
- Who can apply
- United States
- Posted
- 79 days ago
Listing Details
- Posted
- August 21, 2026
- First seen
- August 24, 2026
- Last seen
- November 9, 2026
Posting Health
- Days active
- 76
- Repost count
- 1
- Trust Level
- 39%
- Scored at
- November 9, 2026
Signal breakdown
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