At Vast, our mission is to contribute to a future where billions of people are living and thriving in space. Vast is developing next-generation space stations to ensure a continuous human presence in space for America and its allies, enabling advanced microgravity research and manufacturing, and unlocking a new space economy for government, corporate, and private customers. Using an incremental, hardware-rich and low-cost approach, Vast is rapidly developing its multi-module Haven Station.

Haven Demo’s 2025 success made Vast the only operational commercial space station company to fly and operate its own spacecraft. Next, Haven-1 is expected to become the world’s first commercial space station when it launches, followed by additional Haven modules to enable permanent human presence by 2030. Our team is all-in, committed to executing our mission safely and on time.

If you want to work with the most talented people on Earth furthering space exploration for humanity, come join us. Vast is looking for a Propulsion Test Engineer , reporting to the Propulsion Test Manager, to support the development of the propulsion systems that will be required for the design and build of artificial-gravity human-rated space stations. This will be a full-time , exempt position located in our Mojave location.

Responsibilities

: Perform thruster development, acceptance and qualification hot-fire testing Lead hazardous operations including work with high pressure fluids Write test procedures for hazardous operations Prepare and lead Test Readiness Reviews (TRRs) Work side by side with the test stand technicians during test article install and inspection Maintain and design modifications to test stand fluids and electrical systems to meet current and expanding test

Requirements

Work collaboratively with Long Beach based responsible engineers to meet test

, design test stand modifications, and debug test stand problems rapidly

: Willingness to work overtime, or weekends to support critical mission milestones Ability to lift up to 25 lbs unassisted Ability to work in extreme weather conditions outdoors in Mojave, CA Pay Range: Propulsion Test Engineer I: $86,000 - $122,000 Propulsion Test Engineer II: $112,000 - $155,000 Senior Propulsion Test Engineer: $135,000 - $195,000 Pay Range: California $86,000 $195,000 USD

Minimum Qualifications

: Bachelor’s degree in aerospace or mechanical engineering or related field 2+ years of experience in the operation, design, and development of chemical propulsion and/or fluid systems, or hardware testing Preferred Skills Experience: Propulsion experience in collegiate rocket program Experience with NX and Teamcenter Experience with Epsilon3 Experience with JIRA / Confluence Experience with controls data acquisition systems (e.g., Beckhoff/TwinCAT, National Instruments/LabVIEW) Experience building and testing high pressure fluid systems Tube fitting bending, familiarity with common industry fittings systems Read interpret Plumbing and Instrumentation Diagrams (P IDs) Excellent communication skills, both written and oral Ability to work in multi-disciplinary teams Ability and willingness to thrive in a fast-paced, rapidly changing work environment Additional

COMPENSATION

AND

package.

BENEFITS

Base salary will vary depending on job-related knowledge, education, skills, experience, business needs, and market demand.

Benefits And Perks

, including: medical, dental, and vision coverage for employees and dependents, generous paid time off; up to 20+ days of vacation for exempt staff and up to 10+ days of vacation for non-exempt staff with the ability to cash-out unused vacation annually, paid parental leave, short and long-term disability insurance, life insurance, access to a 401(k) retirement plan, ClassPass credits, personalized mental healthca