As a Test Engineer, you will support our Testing Team in a production environment to deliver premier space flight projects. You will get to create and manage test flow for flight-critical hardware production. You will have prior experience in a complex manufacturing environment. We work in a highly collaborative environment, and look for creative solutions as we work together on exciting new technology.
ABOUT BUSEK CO. INC.
Busek researches, develops, and produces technologies for challenging space missions for small spacecraft in low-earth orbit, large geostationary satellites, and CubeSats & probes going to the moon and beyond. Our talented staff have collective expertise spanning in-space propulsion, space-borne sensors, materials science, manufacturing, and high-fidelity electronic design. Busek’s accomplishments include: the first US Hall Effect Thruster in space, the first Micro-PPT Thrusters, and the first flight Electrospray Thrusters. Our present efforts span high-volume and low-volume production of high-reliability in-space propulsion components and systems as well as development of novel processes and technologies.
Day to day activities:

Operate and manage testing for vacuum and fluidic systems
Understand and troubleshoot pressure and vacuum systems
Collaborate with other engineers, researchers, and manufacturers
Produce and maintain essential documentation including test plans and procedures
Suggest and implement testing flow improvements

Desired skills:

B.S. in Mechanical Engineering
Hands-on experience in propulsion laboratory
Experience with LabView
Experience with MatLab/Python
Working knowledge of vacuum systems
Experience with pressurized gas flow control devices

U.S. Citizenship Requirement
Due to the nature of work performed under U.S. government contracts and applicable security and contractual requirements, this position is limited to U.S. citizens.

About the company

Busek develops and ships propulsion systems and electronic solutions for spaceflight. The company offers a range of propulsion technologies, including Hall effect thrusters, electrospray, radio frequency ion, pulsed plasma, and green monopropellant thrusters, to cover missions from compact cubesats to large geostationary satellites. Its products include complete propulsion systems and associated electronics designed to convert electrical power into thrust for spacecraft. Busek differentiates itself by maintaining expertise across five propulsion technologies, enabling customers to choose from multiple approaches within a single provider, and by focusing on research and development, quality, vacuum performance, electronics, supply chain management, and manufacturing. The company’s goal is to enable new capabilities and missions for its customers, the Nation, and Humanity by delivering reliable propulsion solutions that meet a wide range of spacecraft needs.

Company Size

51-200

Company Stage

Grant

Total Funding

$2.2M

Headquarters

Natick, Massachusetts

Founded

1985

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Simplify's Take

What believers are saying

Busek delivered all BHT-6000 flight thrusters for NASA Gateway on September 17, 2025.
Busek’s 2026 job postings show active hiring across engineering, manufacturing, finance, and QA.
The company says 150 BHT-350 thrusters are already operating on-orbit, validating production quality.

What critics are saying

NASA Gateway delays after 2025 delivery would hit Busek’s marquee revenue and credibility.
OneWeb and other constellation buyers can squeeze pricing once alternative Hall suppliers qualify.
SpaceX, Northrop Grumman, and Moog are aggressively expanding electric propulsion offerings through 2026.

What makes Busek unique

Busek’s BHT-6000 powers NASA’s Lunar Gateway SEP stack, flight-proven in 2025.
Its center-mounted cathode and multi-propellant designs differentiate Busek from commodity Hall thruster vendors.
Busek spans thrusters, power electronics, and materials, shortening integration for spacecraft customers.

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Benefits

Health Insurance
Dental Insurance
Vision Insurance
Life Insurance
Disability Insurance
Paid Vacation
Paid Sick Time
Paid Holidays
401(k) Retirement Plan
Performance Bonus Program

Growth & Insights and Company News

6 month growth

28%

1 year growth

27%

2 year growth

27%

SBIR.gov

Sep 13th, 2026

Awards | SBIR

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PR Newswire

Jul 15th, 2024

Dr. Vlad Hruby Awarded 2024 Stuhlinger Medal In Electric Propulsion

Highest Honor Bestowed to Busek's Founder for Contributions to the Field of Electric Propulsion in SpaceNATICK, Mass., July 15, 2024 /PRNewswire/ -- Dr. Vlad Hruby, an electric propulsion pioneer who founded Busek Co. Inc. in 1985, has been awarded the 2024 Stuhlinger Medal for Outstanding Achievement in Electric Propulsion. Presented to him at the 38th International Electric Propulsion Conference in Toulouse, France, the Stuhlinger Medal is the highest honor in the field of electric propulsion for spacecraft. Electric Propulsion Rocket Society's Stuhlinger Medal

Worcester Business Journal

Mar 6th, 2024

Central Mass. businesses receive $600K boost from state manufacturing accelerator

Central Massachusetts businesses in Worcester, Natick, and Hudson are among those benefiting from a Gov. Maura Healey Administration grant injecting $3.14 million into the state’s manufacturing industry.

SatNow

Jun 16th, 2023

Virgin Galactic Announces Start of Commercial Spaceflight Operations

Busek, a company that is engaged in applied research, hardware development, and specialty manufacturing in space propulsion emphasizing electric propulsion, power electronics, and material science has introduced a new Hall Effect thruster for geostationary orbit satellites....