Vast is developing next-generation space stations and space infrastructure using an incremental, hardware-rich, and capital-efficient approach. Vast is rapidly developing its multi-module Haven Station to support a continuous human presence in space for America and its allies, enabling advanced microgravity research and manufacturing, and supporting a growing space economy for government, corporate, and private customers. Haven Demo’s 2025 success made Vast the only operational commercial space station company to design, build, and operate its own spacecraft in orbit. Next, Haven-1 is targeted to become the world’s first commercial space station, with launch anticipated in 2027, followed by additional Haven modules. Additionally, the company recently announced two new offerings leveraging its space station components and the heritage of Haven Demo: Vast Satellite, a high-power satellite product line; and Vast Lunar Systems, power, communications, and habitats for the Moon.

Headquartered in Long Beach, California, and with more than 1,000 employees and over a billion dollars in private capital, Vast has built the facilities capable of manufacturing America’s next space station. The company plans to develop future habitats and systems for Mars, dedicated modules for government partners, and other crewed systems designed to unlock the expanding long-term space economy.

Vast is looking for Mechanical Engineer, Thermal Control Systems, to help develop the systems behind our human-rated space stations. You'll use your engineering knowledge and creativity to design, build, and test novel solutions at the cutting edge of space technology.

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

Responsibilities:

Own the design and development of thermal control systems and components for our artificial-gravity space station, such as heat exchangers, cold plates, heaters, and heat pipes, from initial design trades through a fully validated system.
Lead thermal and fluid analyses, and use the results to drive design decisions and define margins.
Perform systems engineering for your hardware, including requirements, interfaces, and verification by test, analysis, inspection, or demonstration.
Lead development and qualification testing, and iterate on designs and manufacturing processes in a fast-paced environment.
Own the delivery timeline for your hardware from early design through production, launch, and orbit insertion.
Lead internal design reviews and technical reviews with suppliers and customers.
Partner with avionics, software, and mission operations teams to make sure your system integrates across the station.
Make sure designs are manufacturable and reliable, working with fabricators, technicians, and suppliers to resolve issues.

Minimum Qualifications:

B.S. in mechanical, aerospace, or civil engineering, physics, mathematics, or a related technical field.
2+ years of experience designing and developing mechanical components or systems.
- 2-4+ years of experience for Mechanical Engineer II
- 4-6+ years of experience for Senior Mechanical Engineer
Proficiency with 3D CAD and FEA software packages.
Experience implementing and analyzing GD&T per ASME Y14.5.

Preferred Skills & Experience:

Design of structures and components for a high-performance vehicle or spacecraft.
Experience with design work in recent versions of NX and Teamcenter.
Experience with thermal and structural analysis using Ansys, Femap/Nastran, Abaqus, or similar tools.
Experience implementing and analyzing GD&T per ASME Y14.5.
Proactive problem-solving skills, including failure analysis and root cause investigation.
Experience in a fast-paced manufacturing environment.
Familiarity with spacecraft specifications and environmental test standards such as SMC-S-016, NASA-STD-5001, and MIL-STD-810.

Additional Requirements:

Willingness to work evenings and/or weekends to support critical mission milestones.

Pay Ranges:

Mechanical Engineer/ Level I: $86,100.00 - $122,220.00
Mechanical Engineer/ Level II: $112,340.00 - $159,468.00
Senior Mechanical Engineer/ Level III: $137,760.00 - $195,552.00

We calibrate level and compensation to the selected candidate's experience and demonstrated capability. We welcome applicants across a range of experience levels to apply.

COMPENSATION AND BENEFITS

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: 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 healthcare through Spring Health, and other discounts and perks. We also take pride in offering exceptional food perks, with snacks, drip coffee & onsite barista, cold drinks, and dinner meals remaining free of charge, and lunch subsidized as part of Vast’s ongoing commitment to providing high-quality meals for employees.

EQUAL OPPORTUNITY

Vast is an Equal Opportunity Employer; employment with Vast is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status.

VAST

Mechanical Engineer - Thermal Control Systems

About the Job

Requirements

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Responsibilities:

Minimum Qualifications:

Preferred Skills & Experience:

Additional Requirements:

Pay Ranges:

About the Company

VAST

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