Senior Life Support Systems Engineer Long , California,

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.

Senior Life Support Systems Engineer
, reporting to the Director of Life Support Systems
, will support the development of the systems required for the design and build of artificial‑gravity human‑rated space stations. Use this space to describe the role and sell the candidate on the cool stuff they would get to work on.

This will be a full‑time
, exempt position located in our Long Beach location.

• Own the design and development of the environmental and thermal control systems for our artificial‑gravity space station, from initial design trades to fully functional and validated system.
• Iterate on manufacturing processes and development testing in a fast‑paced environment.
• Own the project delivery timeline from early design through production, launch, and orbit insertion.
• Perform systems engineering tasks and fluid analyses.
• Lead design reviews internally and externally with suppliers and customers.
• Work with interdisciplinary stakeholders to ensure the component will integrate with the necessary avionics, software, and mission operations systems.
• Make sure that all designs are manufacturable and reliable.
• Bring technical excellence to everything you do.

• Bachelor's degree in an engineering or science discipline.
• 5+ years of experience working with fluid or environmental control systems or components.
• 3+ years of hands‑on hardware experience performing fabrication, assembly and/or testing.

• Master's degree in an engineering discipline.
• Proactive problem‑solving skills such as failure analysis, root cause investigation, and design of experiment creation.
• Ability to perform trade studies using first principles and engineering fundamentals to make clear recommendations even with partial information.
• Experience with rotating machinery.
• Experience with soft goods.
• Experienced in NX.
• Solid understanding and application of geometric dimensioning and tolerancing (GD&T) and tolerance stack‑up analysis.
• Experience with structural analysis methods (hand calcs, FEMAP, ANSYS) in order to optimize hardware to strength requirements as well as to evaluate for life and fracture.
• Knowledge of metallic and fluid system manufacturing techniques, processes, equipment, and other processes such as machining, welding, brazing, tube bending, etcetera.
• Able to work well in an integrated collaborative team environment, including frequent interactions with technicians, other engineers, and managers.
• Highly self‑motivated with strong organizational and written/oral communication skills – able to prioritize and execute tasks in a high‑pressure environment with the ongoing drive for continuous improvement in all aspects of work.

Base salary will vary depending on job‑related knowledge, education, skills, experience, business needs, and market demand. Salary is just one component of our comprehensive compensation package. Full‑time employees also receive company equity, as well as access to a full suite of compelling benefits and perks, including: 100% medical, dental, and vision coverage for employees and dependents, flexible paid time off for exempt staff and up to 10 days of vacation for…