Senior Manufacturing Engineer, ECLSS

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 Senior Manufacturing Engineer, Environmental Control and Life Support Systems, reporting to the Senior Manager, ECLSS Manufacturing, to support the development, production, and integration of the systems required for artificial-gravity human-rated space stations. This will be a full-time, exempt position located in our Long Beach location. Responsibilities: * Own the manufacturing development, production readiness, and build execution of environmental control and life support system hardware for our artificial-gravity space station * Develop, mature, and optimize manufacturing processes for ECLSS components and assemblies, from prototype builds through production and flight hardware * Partner closely with design engineering to ensure hardware is manufacturable, reliable, inspectable, and scalable from early design trades through final production * Create and maintain manufacturing plans, work instructions, assembly procedures, inspection plans, and production documentation * Drive hands-on fabrication, assembly, integration, and test activities in a fast-paced hardware development environment * Identify and resolve production issues through root cause analysis, failure investigation, corrective actions, and continuous improvement * Lead design-for-manufacturing and design-for-assembly reviews internally and with suppliers * Own manufacturing schedules, build sequencing, and production execution for assigned ECLSS hardware from early development through launch vehicle integration * Work with technicians, quality, supply chain, design engineering, test engineering, avionics, software, and mission operations teams to ensure successful system integration * Support supplier development and manufacturing readiness for externally produced components and assemblies * Evaluate and implement manufacturing techniques for metallic, fluid, thermal, and soft-goods hardware, including machining, welding, brazing, tube bending, cleaning, bonding, and assembly * Bring technical rigor, ownership, and continuous improvement to all aspects of manufacturing engineering Basic Qualifications

• Bachelor’s degree in an engineering or science discipline
• 5+ years of experience in manufacturing engineering, production engineering,

or hardware development for fluid, thermal, environmental control, or life support systems * 3+ years of hands-on hardware experience supporting fabrication, assembly, integration, and/or testing * Experience developing manufacturing processes, work instructions, build plans, or production documentation for complex hardware Preferred Qualifications

• Master’s degree in an engineering discipline.
• Experience supporting production or build execution for aerospace,

spacecraft, propulsion, ECLSS, thermal, fluid, or other high-reliability hardware * Strong experience with design for manufacturing and assembly, production readiness, process development, and manufacturing risk reduction * Proactive problem-solving skills, including failure analysis, root cause investigation, corrective action implementation, and design of experiments * Ability to perform trade studies using first principles and engineering fundamentals to make clear recommendations with partial information * Experience with rotating machinery, pumps, valves, heat exchangers, pressure vessels, fans, separators, or other fluid system components * Experience with soft goods, flexible ducting, seals, insulation, or other non-metallic flight hardware

• Experience with NX
• Solid understanding and application of geometric dimensioning and

tolerancing, tolerance stack-up analysis, and inspection planning * Experience with structural analysis methods, including hand calculations, FEMAP, or ANSYS, to evaluate manufacturability, strength, life, and fracture considerations * Knowledge of metallic and fluid system manufacturing techniques, processes, equipment, and special processes, including machining, welding, brazing, tube bending, cleaning, passivation, leak testing, proof testing, and pressure testing * Experience working directly with technicians on the shop floor to troubleshoot builds, improve processes, and execute hardware efficiently * Ability to work well in an integrated, collaborative team environment, including frequent interaction with technicians, engineers, quality, supply chain, 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 an ongoing drive for continuous improvement Pay Range:

• Manufacturing Engineer II: $112,340 - $159,468
• Senior Manufacturing Engineer: $137,760 - $192,552
• Staff Manufacturing Engineer: $162,360 - $230,472

Pay Range: California

$137,000—$230,000 USD

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.

U.S. EXPORT CONTROL COMPLIANCE STATUS

The person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a “U.S. person” as defined by 22 C.F.R. § 120.62 [ or otherwise eligible for deemed export licensing. This status includes U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending.

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.