Is it hard to get hired at Mainspring Energy?

Glassdoor users rated their interview experience at Mainspring Energy as 38.3% positive with a difficulty rating score of 3.17 out of 5 (where 5 is the highest level of difficulty). Candidates interviewing for Controls Engineer and Associate Electrical Engineer rated their interviews as the hardest, whereas interviews for Product Manager and Test Engineer roles were rated as the easiest.

How long does it take to get hired at Mainspring Energy?

The hiring process at Mainspring Energy takes an average of 31 days when considering 47 user submitted interviews across all job titles. To compare, the average duration of hiring at similar companies like BlackRock, Inc. is 14 days, Fabricated Software, Inc. is 2 days, and Apple Inc. is 21 days. Candidates applying for Accounting Manager had the quickest hiring process (on average 1 day), whereas Performance Engineer roles had the slowest hiring process (on average 90 days).

Where can I find Mainspring Energy interview experiences by job title?

Mechanical Engineer (5) ; Mechanical Engineering Intern (3) ; Staff Engineer (3) ; Staff Mechanical Engineer (3) ; Analyst (2) ; Engineer (2) ; Sales Development Representative (SDR) (2)

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Mainspring Energy

Mainspring Energy interview questions

based on 49 ratings - Updated Jul 10, 2026

Average interview difficulty

Mixed interview experience

How others got an interview

88%
Applied online
Applied online
6%
Employee Referral
Employee Referral
3%
Recruiter
Recruiter
3%
Other
Other

Interview search

49 interviews

Quality Engineer Interview

Dec 18, 2022

Anonymous Interview Candidate

No offer

Negative experience

Easy interview

Application

I applied online. The process took 1 week. I interviewed at Mainspring Energy in Nov 2022

Interview

Made an interview with HR, and then it was scheduled a meeting with the manager, which did not join the meeting and never gave feedback about the process. He told he was on sick leave before but never returned when a new meeting was going to be done. After two weeks I received an email saying the process was canceled.

Interview questions [1]

Question 1

Tell us about who you are

Answer question

Controls Engineer Interview

May 30, 2022

Anonymous Interview Candidate

No offer

Positive experience

Difficult interview

Application

I interviewed at Mainspring Energy

Interview

I first had a interview with the hiring manager. After that the second round was a test where in you'll be given problems and you have to submit them in 3 days.

Interview questions [1]

Question 1

Questions on project, based on resume

Answer question

Tech Interview

May 13, 2022

Anonymous employee

Accepted offer

Positive experience

Average interview

Application

I applied online. I interviewed at Mainspring Energy (New York, NY) in Feb 2021

Interview

Really great process. I had two individual phone screens - one with a program manager and one with the hiring manager. I then met with five people across different teams. Most of the questions were regarding my background and experiences. I didn't get any case questions.

Interview questions [1]

Question 1

What work are you the most proud of.

Answer question

Viewing 31 - 35 of 49 Interviews

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Mainspring Energy interview questions

Average interview difficulty

Mixed interview experience

How others got an interview