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Principal Mechanical Engineer

Re:Build Manufacturing

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This role on the market

883 open mechanical roles across 93 companies are on ApplySarthi right now, most of them in Bengaluru (17), Delhi NCR (5), Mumbai (4).

Mechanical Engineer jobs in the United States

Re:Build Manufacturing has 130 open roles listed here.

Counted across 14 company job boards, updated as roles open and close.

Preparing for this interview

883 open mechanical roles are hiring right now across 93 companies, mostly in Bengaluru — so the questions repeat. Practise them before you sit with Re:Build Manufacturing.

Questions you are likely to be asked

  1. Why do you want to join Re:Build Manufacturing?
  2. Walk me through a system you built. How was it designed, and what would you change now?
  3. Tell me about a hard bug you tracked down. How did you find the cause?
  4. How do you decide what to test, and what does good code review look like to you?
  5. Describe a time a deadline forced a trade-off in quality. What did you choose and why?

Prep Sarthi gives you a free mock interview: an AI interviewer asks you questions like these out loud, from your own CV and this job, and shows your score and your weakest answer.

Practise the Principal Mechanical Engineer at Re:Build Manufacturing interview free →

About Re:Build 

At Re:Build, our mission is to ensure the next generation of important products are made, at scale, in America. We are laying the foundation for a better future for our customers, employees, and communities by revitalizing America's manufacturing base and creating meaningful jobs across the country, including in historically deindustrialized regions. 

We operate an advanced, end-to-end manufacturing platform that partners with industrial companies and innovators to take products from first concept to full-scale production in critical verticals including aerospace and defense, electrification, medical, energy and environment, and robotics and automation. 

The way we operate is as important as the work we do. It's guided by The Re:Build Way, 16 principles that shape how we collaborate with each other, partner with our customers and vendors, and contribute to the communities where we operate. (link to The Re:Build Way principles)

About Re:Build DAPR Engineering 

Re:Build DAPR Engineering, LLC (DAPR) is an engineering design and analysis consulting firm in Merrimack, New Hampshire. We work with customers across many industries to develop and deliver turnkey industrial machines to meet their unique requirements. We design and build custom automation solutions, work with OEM’s to develop industrial products, and provide engineering analysis using FEA tools.

Who are we looking for?

Do you thrive by being involved in all phases of development, from concept generation to machine testing?

Are you a servant leader who enjoys autonomy and seeks to build highly capable teams and who provides opportunities for growth and enrichment throughout the engineering organization?

Do you enjoy articulating a vision for the projects that you and your team work on?

If your answer to these questions is "yes", then this role may be right for you.

What will you get to do?

What will you bring to the team?

This role can sit in Merrimack, NH or Kalamazoo, MI. 

Export Control Requirement:  Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.

The BIG payoff

We are a company who is going to make a difference in the industries and the communities in which we choose to operate.

Every employee of Re:Build will share ownership in the company and will share in the financial rewards of the success we achieve together, at all levels of the company!

We want to work with people that reflect the communities in which we operate

Re:Build Manufacturing is proud to be an Equal Employment Opportunity and Affirmative Action employer. We do not discriminate based upon race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, marital status, parental status, cultural background, organizational level, work styles, tenure, and life experiences. Or for any other reason.

Re:Build is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at accommodations.ta@ReBuildmanufacturing.com or you may call us at 617.909.6275.

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Listed on greenhouse · posted 2026-03-11. ApplySarthi collects openings and links to application pages; the role is advertised by Re:Build Manufacturing, not by us.