Sr. Mechanical Design Engineer (2 openings)

  • Engineering

6K, Inc.  is a high-tech start-up based in North Andover, MA. We are focused on the production of materials for applications involving additive manufacturing, LED lighting and displays, lithium-ion batteries and semiconductor polishing.

6K, Inc.’s UniMelt® plasma technology enables customers to tailor ceramic, metal or composite materials to their specifications to meet the requirements of advanced end-products.

We are looking for a Senior Mechanical Design Engineer who is a jack-of-all-trades type, who can contribute effectively within a high-performing, team-oriented start-up environment.


In this highly visible role, you will have the opportunity to develop the company’s next-generation microwave plasma torch. This technology is at the heart of the system, where the microwave energy couples to highly tuned gas flow to create a plasma discharge. In this capacity, your contributions will have a direct impact on company success through deployment of designs for cost reduction and performance improvements.

This role is highly collaborative and will involve communication with a talented, multi-disciplinary team. Reporting will be to the group lead for core technology development.  Although the projects will be varied, some samples are given below (previous experience not required):

  • Development of diagnostic imaging system to characterize plasma torch performance
  • Design and build of an optical measurements fixture to replace the current physical method
  • Many opportunities for design, source, build, and test of key hardware subsystems
  • Establishment of a fluid-flow visualization system using streamline tracers

This opportunity offers exposure to cutting-edge technology that cuts across many disciplines (fluid flow, heat transfer, RF design, plasma physics, materials selection, mechanical design, multi-physics modeling). There is also ample room for increase in responsibility and job scope given 6K, Inc. current high-growth phase.


  • BSME or MSME (preferred)
  • A first-principles thinker, with a firm understanding of mechanical engineering basics
  • Five (5+) years of experience with a proven track record of tackling complex, multi-disciplinary problems including those without prior knowledge
  • Fluency with SolidWorks, scripting (Matlab or similar), data acquisition systems (preferred)
  • Solid mechanical designer who enjoys the full “stack” of development: idea generation, feasibility, detailed design, hands-on build & test
  • An individual who appreciates and is disciplined in following the scientific method (e.g. letting the data speak, designing the correct experiments, demonstrating repeatability, etc.)
  • Self-directed learner who can own a project and drive to solution with limited outside direction
  • Possesses a “do-what-it-takes” attitude which might require going above and below nominal scope

6K, Inc. is an equal employment opportunity employer.

For immediate consideration please send your resume directly to:

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