Company insights - Anonymous employee Mainspring Energy Employee Review

5.0
Sep 6, 2018
Anonymous employee
Recommend
CEO approval
Business Outlook

Pros

Excellent company culture, valuing its employees and work/life balance while providing a challenging mission, roles and responsibilities. Open, transparent and very collaborative work culture accross all levels. Top notch engineering team and C-level company founders who have worked out the science of a breakthrough power production technology. Very competitive salary and equity compensation package for a start-up close to moving its invention to production with tremendous growth opportunities.

Cons

Company has a lot to do and need to recruit the bests to continue refine the product design, transition to manufacturing while developing the company organization.

Explore other reviews about Mainspring Energy

5.0
Apr 7, 2026
Recommend
CEO approval
Business Outlook

Pros

Interesting product, good work life balance

Cons

No 401k match, can be fragmented at times

2.0
Jun 5, 2026
Recommend
CEO approval
Business Outlook

Pros

Lots of overtime Free snacks

Cons

Technicians are rewarded for working efficiently with additional work assignments. "Senior" technicians do the same work as entry level techs, while getting paid twice as much. Last minute travel with many adhoc extensions, sometimes keeping you away from home for multiple weeks Unfair and dishonest supervisors who will quickly throw you under the bus for a pat on the back Unsafe practices in the field Inflexible work hours and schedule This is the type of job where you are expected to be working 100% of the time, even if you complete your assigned job duties. You will be pawned off to another department for the day to ensure you don't get a break. Last time I checked, running a computer at full capacity will cause components to heat up and burn out, resulting in an unsustainable system. The same goes for humans working in a business.

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