propulsion systems engineer

Hermeus

<div><div>Hermeus is a high-speed aircraft manufacturer focused on the rapid design, build, and test of high-Mach and hypersonic aircraft for the national interest. Working directly with the Department of Defense, Hermeus delivers capabilities that will ensure that our nation, and our allies, maintain an asymmetric advantage over any and all potential adversaries.</div><div></div><p><br>
As a Propulsion Component Responsible Engineer you will own the development of flight-critical mechanical and fluid system components, including valves, actuators, and integrated propulsion hardware. You will be responsible for taking hardware from clean-sheet design through build, test, qualification, and production, working in close collaboration with propulsion and vehicle teams. Your work will directly support systems operating in high-pressure, high-temperature, and dynamic flight environments.</p><div><br>
</div>
<h3 class="jobSectionHeader"><b>Responsibilities:
</b></h3><ul><li>Own propulsion components (e.g., valves, actuation systems, and fluid control hardware) from concept through flight-ready delivery</li>
<li>Design for extreme environments, including high pressure, temperature, and transient operating conditions</li>
<li>Drive engineering trade studies across performance, manufacturability, reliability, and testability</li>
<li>Execute clean-sheet design, analysis, and integration of propulsion components</li>
<li>Support hardware through rapid build&ndash;test&ndash;iterate cycles</li>
<li>Lead troubleshooting and root cause analysis during development and test</li>
<li>Work with propulsion and vehicle system owners to define requirements, interfaces, and integration strategies</li>
<li>Perform system-level sizing, architecture, and design trades</li>
<li>Lead development testing, qualification, and acceptance of flight hardware</li>
<li>Support transition from prototype to repeatable, production-ready designs</li>
<li>Define operational limits and ensure reliability and safety across all phases of use</li>
<li>Make risk-informed engineering decisions aligned with program goals and timelines</li>
<li>Prioritize work effectively in a fast-paced, evolving development environment</li>
</ul><h3 class="jobSectionHeader"><b>Basic Qualifications
</b></h3><ul><li>Bachelor&rsquo;s degree in Mechanical Engineering, Aerospace Engineering, or related field</li>
<li>5+ years of experience developing mechanical or propulsion-related hardware</li>
<li>Experience contributing to hardware through design, build, and test cycles</li>
<li>Strong fundamentals in fluids, thermodynamics, mechanics, and materials</li>
<li>Hands-on experience with mechanical design, assembly, or integration</li>
</ul>
<div></div><h3 class="jobSectionHeader"><b>Preferred Skills and Qualifications
</b></h3><ul><li>Experience with propulsion systems, high-pressure fluid systems, or aerospace mechanisms</li>
<li>Experience designing components such as valves, actuators, or fluid control hardware</li>
<li>Familiarity with high-temperature materials, sealing strategies, and failure modes</li>
<li>Strong knowledge of GD&amp;T, tolerance stack-up, and precision assemblies</li>
<li>Experience supporting hardware testing and resolving real-world failures</li>
<li>Proficiency with CAD tools (NX preferred) and analysis tools (ANSYS or similar)</li>
<li>Experience working in rapid hardware development environments (startup or flight programs)</li>
<li>Scripting experience (Python, MATLAB, or similar) for analysis or automation</li>
</ul><h3 class="jobSectionHeader"><b>Additional Requirements:</b></h3><ul>
<li>Willingness to work hands-on in build, integration, and test environments</li>
<li>Ability to support extended hours during critical test campaigns</li>
<li>Willingness to travel to support hardware builds and flight tests</li>
<li>Must be eligible to access export-controlled information</li>
</ul><div>The salary information provided is a general guideline only. Hermeus takes various factors into account, including, but not limited to, the position's scope and responsibilities, the candidate's professional background, education and training, essential skills, and market and business considerations, when presenting a job offer.</div>
<div></div>
<div>Salary is only one part of our total compensation and benefits package. Hermeus offers competitive salary and equity, unlimited PTO policy, paid parental leave, potential for year-end bonuses, and more!</div>
<div></div>
<div>100% employer-paid health care</div>
<div>401k &amp; Retirement Plans</div>
<div>Unlimited PTO</div>
<div>Weekly Paid Office Lunches</div>
<div>End of Year Bonuses</div>
<div>Fully stocked breakrooms</div>
<div>Stock Options</div>
<div>Paid Parental Leave</div><div></div><div><b><br>
U.S. EXPORT CONTROL COMPLIANCE STATUS</b></div><div>
The person hired will have access to information and items subject to U.S. export controls, and therefore, must either be a &ldquo;U.S. person&rdquo; as defined by 22 C.F.R. &sect; 120.62 or otherwise eligible for deemed export licensing. US persons include U.S. citizens, U.S. nationals, lawful permanent residents (green card holders), and asylees and refugees with such status granted, not pending.</div><div></div><div><b><br>
EQUAL OPPORTUNITY</b></div><div>
Hermeus is an Equal Opportunity Employer. Employment decisions at Hermeus are based solely on merit, competence, and qualifications, without regard to 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.</div><div></div><p><br>
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.</p></div>

Propulsion Component Responsible Engineer

Quantum Space

<div><p><b>Who We&rsquo;re Looking For</b></p>
<p>
Quantum Space is redefining mobility and maneuverability in space. Our high-mobility spacecraft platforms support national security, civil, and commercial missions with unmatched flexibility and propulsion capability. We build fast and iterate quickly.</p><p></p><p><br>
We are seeking a Senior Engineer to take technical ownership of propellant decomposition concepts, architectures, and flight hardware designs to enable Multimode In-Space propulsion, for ultimate flexibility across Chemical and Electric Propulsion operations. Our game-changing Multimode architecture starts with a single propellant, to provide flexible on-demand, on-orbit chemical and electric maneuverability.</p>
<p>
In this role, you will lead and drive the technical evaluation and development, from concept through flight hardware, for the enabling propellant decomposition technology and designs. This role is ideal for an experienced engineer who thrives in a hands-on environment and is ready to lead technical execution from concept through flight qualification and subsequent mission operation.</p><br>
<p></p>
<p><b>
Where You&rsquo;ll Make an Impact</b></p>
<ul>
<li>Perform trade studies and technical evaluation to drive spacecraft and propulsion system architecture decisions</li>
<li>Identify and implement relevant chemical reactions and decomposition processes</li>
<li>Design, build, and test propellant conversion and associated fluid delivery systems, with required thermal considerations and management</li>
<li>Own and execute hardware development across the full product lifecycle, including requirements definition, design, component and material selection, analysis, build, test, and flight support</li>
<li>Serve as a technical contributor and mentor within a cross-disciplinary engineering team</li>
<li>Collaborate closely with systems, design engineering, manufacturing, test, and operations teams to deliver flight-ready hardware on an aggressive schedule</li></ul><br>
<p></p>
<p><b>
What It Takes</b></p>
<ul>
<li>BS or MS in Mechanical Engineering, Aerospace Engineering, or related science or engineering field</li>
<li><b>7+ years</b> R&amp;D engineering experience, with sustained ownership of complex hardware development</li>
<li>Experience in design of fluidic systems and components, including liquid and gas phase</li>
<li>Working knowledge of heat transfer and design practices for active heating design, thermal management, and fluidics management</li>
<li>Working knowledge or ability to quickly learn about chemical decomposition reactions (e.g. thermal, catalytic)</li>
<li>Ability to operate effectively in a fast-paced, evolving R&amp;D environment</li>
<li>Work location within the <b>LA </b>area</li></ul><br>
<p></p>
<p><b>
Nice-to-Have Experience</b></p>
<ul>
<li>Experience with chemical propulsion (CP) and electric propulsion (EP), including relevant propellants</li>
<li>Experience with material compatibility assessment, including fluid-surface material interactions, to guide materials selection and technical risk reduction</li>
<li>Experience with CAD tools and configuration-controlled hardware development</li>
<li>Fielded space hardware (design principles, relevant standards, flight qualification, full product lifecycle)</li></ul><br>
<p></p>
<p><b>
What You&rsquo;ll Get</b></p>
<ul>
<li><b>Leadership</b> &ndash; Technical leadership and ownership for critical enabling technology</li>
<li><b>Innovation</b> &ndash; Develop, build, and test next generation spacecraft propulsion systems</li>
<li><b>Impact</b> &ndash; See your work fly on unique, high-profile missions.</li>
<li><b>Growth</b> &ndash; Opportunities to lead, mentor, and grow technical depth and breadth</li>
<li><b>Compensation</b> &ndash; Competitive salary, equity, and comprehensive benefits, including medical, dental, vision, generous leave, HSA, 401(k) matching, and equity participation.</li></ul><br>
<p></p>
<p><b>
Additional Requirements</b></p>
<p>
To comply with U.S. Government space technology export regulations, including ITAR, applicants must be a U.S. citizen, lawful permanent resident, protected individual per 8 U.S.C. &sect; 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.</p><br>
<p></p>
<p><b>
Apply now. Help build the next step forward in game changing space mobility.</b></p></div>

Senior Engineer – Multimode Propulsion

Prepaire Laboratory 7 Limited

<p><b>Jet Propulsion Integration Engineer </b></p><p><b>Location</b>: Croatia or UAE (on‑site)<br/><b>Employment Type</b>: Full‑time<br/><b>Compensation</b>: Competitive (salary + benefits)</p><p><b>What Propels Us: </b></p><p>PAiREGRINE is a high‑speed autonomous Intelligence, Surveillance, and Reconnaissance (ISR) jet UAV built to operate where time, range, and reliability matter. The aircraft combines micro‑turbine propulsion, onboard AI, and advanced sensing into a compact, high‑performance platform designed for real‑world missions.</p><p>For a jet UAV, propulsion integration is non‑negotiable. Installed performance&mdash;not brochure thrust&mdash;defines success. This role exists because getting the engine into the aircraft correctly is just as critical as the engine itself.</p><p><b>The Impact You&rsquo;ll Make </b></p><p>You will own the propulsion system as an installed, flying reality, not a standalone engine. Your work determines thrust delivery, fuel efficiency, thermal margins, reliability, and how well the aircraft performs across its mission envelope.</p><p>From engine selection through test‑stand validation and flight integration, you ensure the propulsion system works as part of a tightly coupled aircraft&mdash;not an afterthought bolted on late.</p><p><b>What will you actually do? </b></p><ul><li>Own selection and integration of the micro‑turbine propulsion system (PBS or alternatives)</li><li>Design engine mounting structures, intake geometry, exhaust routing, and shielding</li><li>Develop and own the fuel system architecture from tank to combustor</li><li>Manage thermal behavior, cooling strategies, and heat rejection across the airframe</li><li>Integrate FADEC with avionics, power, and control systems</li><li>Analyze installed thrust, specific fuel consumption (SFC), and generator outputs</li><li>Design and run engine test stands, test procedures, and propulsion validation plans</li><li>Optimize propulsion performance for real mission conditions&mdash;not datasheet assumptions</li><li>Ensure propulsion reliability across startup, steady‑state, and transient regimes</li></ul><p><b>What You&rsquo;ve Done </b></p><ul><li>8+ years of experience in turbine propulsion, UAV propulsion, or aerospace mechanical engineering</li><li>Hands‑on experience integrating gas turbine or micro‑turbine engines into air vehicles</li><li>Strong understanding of fuel systems, thermal management, and propulsion packaging</li><li>Experience working with FADEC systems and avionics interfaces</li><li>Direct involvement in engine testing, test rigs, or propulsion validation campaigns</li><li>Clear understanding of installed performance, not just engine specifications</li></ul><p>Bonus Points</p><ul><li>Experience with PBS micro‑turbines or similar small jet engines</li><li>Prior ownership of propulsion integration on a flying UAV or experimental aircraft</li><li>Experience balancing propulsion performance with structural, thermal, and systems constraints</li><li>Background in high‑speed or long‑range UAV platforms</li></ul><p><b>Why Join Us </b></p><ul><li>You&rsquo;ll be supported and rewarded with competitive compensation while contributing to a mission‑driven program making an impact on a global stage.</li><li>You&rsquo;ll own one of the most mission‑critical systems on a jet UAV&mdash;end to end</li><li>You&rsquo;ll work on real hardware with real performance consequences</li><li>You&rsquo;ll collaborate closely with aerodynamics, structures, systems, and flight‑test teams</li><li>You&rsquo;ll help bring a jet‑class autonomous aircraft from integration to flight</li></ul><p>Job Type: Full-time</p><p>Application Question(s):</p><ul><li>Have you personally integrated a gas turbine or micro‑turbine engine into an air vehicle (UAV or aircraft), beyond supplier coordination or paper studies? </li><li>Have you owned installed propulsion performance analysis (installed thrust, SFC, inlet/exhaust losses), not just engine datasheet evaluation? </li><li>Have you designed or owned a fuel system architecture for a turbine engine (from tank to combustor), including pumps, plumbing, and safety considerations? </li><li>Have you been directly involved in engine testing or propulsion validation (test stand, ground runs, or flight integration)? </li><li>Have you integrated or worked hands‑on with FADEC systems and their interfaces to avionics, power, or control systems? </li></ul><p>Work Location: In person</p>

Jet Propulsion Integration Engineer

Amazon.com

<div><h2 class="jobSectionHeader"><b>DESCRIPTION</b></h2><p>
Amazon Leo is an initiative to increase global broadband access through a constellation of 3,236 satellites in low Earth orbit (LEO). Its mission is to bring fast, affordable broadband to unserved and underserved communities around the world. Amazon Leo will help close the digital divide by delivering fast, affordable broadband to a wide range of customers, including consumers, businesses, government agencies, and other organizations operating in places without reliable connectivity.<br>
<br>
Export Control Requirement: Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.<br>
<br>
The Propulsion Lab Engineer will work within the Amazon Leo Propulsion Design team in the development, operation, and optimization of electric propulsion Test infrastructure. This person will support the development of development Test capabilities for a variety of different propulsion subsystems, including feed systems, thrusters, cathodes, printed circuit board assemblies, tanks, and the integrated propulsion system.<br>
<br>
They will support development Test infrastructure development and execution processes needed to support technology development and improvements to support production stakeholders. They will develop and own test processes which impact the development Test workflows, and diagnose and solve Test issues in order to ensure development Tests proceed efficiently. They will work with responsible engineers to develop test hardware and software improvements.<br>
<br>
Key job responsibilities<br>
Define standard operating procedures for development test equipment changes and maintenance processes<br>
<br>
Assist in the build and development of test hardware, such as ground support equipment, test venue infrastructure, as well as test fixturing and harnessing.<br>
<br>
Train operators in the execution of developed processes, in cases where development test processes or improvements are transferrable to production tests.<br>
<br>
Work with Design and Manufacturing engineers to diagnose and solve issues and improve test capabilities and stability<br>
<br>
Build development test venues.</p><h2 class="jobSectionHeader"><b>
BASIC QUALIFICATIONS</b></h2><ul><li>2+ years of hardware design and validation of components, subsystems and systems experience</li><li>Bachelor's degree or above in mechanical engineering, electrical engineering, material science, physics or equivalent, or Bachelor's degree or equivalent and 1+ years of professional or military experience</li></ul><h2 class="jobSectionHeader"><b>
PREFERRED QUALIFICATIONS</b></h2><ul><li>Experience using modeling, project management, CAD and software programming tools</li><li>Experience in hardware design</li></ul><br>
Amazon is an equal opportunity employer and does not discriminate on the basis of protected veteran status, disability, or other legally protected status.<br>
<br>
Our inclusive culture empowers Amazonians to deliver the best results for our customers. If you have a disability and need a workplace accommodation or adjustment during the application and hiring process, including support for the interview or onboarding process, please visit https://amazon.jobs/content/en/how-we-hire/accommodations for more information. If the country/region you&rsquo;re applying in isn&rsquo;t listed, please contact your Recruiting Partner.<p><br>
The base salary range for this position is listed below. Your Amazon package will include sign-on payments and restricted stock units (RSUs). Final compensation will be determined based on factors including experience, qualifications, and location. Amazon also offers comprehensive benefits including health insurance (medical, dental, vision, prescription, Basic Life &amp; AD&amp;D insurance and option for Supplemental life plans, EAP, Mental Health Support, Medical Advice Line, Flexible Spending Accounts, Adoption and Surrogacy Reimbursement coverage), 401(k) matching, paid time off, and parental leave. Learn more about our benefits at https://amazon.jobs/en/benefits.</p><br>
USA, WA, REDMOND - 39.00 - 69.00 USD hourly</div><p></p>

Propulsion Lab Engineer, Amazon Leo Propulsion

SpaceX

<div><div><p>SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today SpaceX is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.</p></div><p></p>
<p><b>
PROPULSION TECHNICIAN (STARSHIP)</b></p>
<p>
The propulsion systems technician team serve as hardware build and test experts for Booster subassembly prop systems - Unique weldments and avionics subassemblies that provide increased performance and operational capability to Raptor and Super Heavy. You will build and test propulsion assemblies for maximum reliability that need to perform in extreme dynamic environments.</p>
<p>
As a technician, you will be responsible for maintaining a high standard of build quality and ensuring your work scope is performed correctly. You will partner with engineers on the floor to develop booster prop subs production systems. Technicians in this role will be capable of understanding component functionality to be able to assist in troubleshooting or recognizing potential hazards/issues before they occur and helping to update work instructions/processes to reduce future issues and increase personnel safety.</p>
<p><b>
RESPONSIBILITIES:</b></p>
<ul>
<li>Deliver state-of-the-art, high-quality propulsion</li>
<li>Collaborate with engineering and leadership to achieve component delivery rate in a reliable manner</li>
<li>Set the standard for a rigorous and efficient technician team by operating with high efficiency and utilization across a broad mix of products. Perform work according to procedures, specifications and work/test instructions, and communicate daily work completion to report to leadership</li>
<li>Execute daily precision manufacturing tasks, Assemble and fit-up subassemblies for fluid systems, including precision alignment, braze joints, fastener torquing, populating avionics connector pin-out with exact wire routing and crimping, conducting proof pressure testing on assemblies, and hi-pot electrical testing for insulation integrity</li>
<li>Troubleshoot failure modes and collaborate with design, tooling, quality, and engineering teams to resolve technical issues, recommend improvements to designs/instructions/processes for enhanced reliability, manufacturability, and production rates, and transition products from design to high-volume production</li>
</ul>
<p><b>BASIC QUALIFICATIONS:</b></p>
<ul>
<li>High school diploma or equivalency certificate</li>
<li>1+ years of experience working in a manufacturing/assembly, welding, or testing role OR completion from a relevant trade school</li>
</ul>
<p><b>PREFERRED SKILLS AND EXPERIENCE:</b></p>
<ul>
<li>3+ years of aerospace component testing experience</li>
<li>Trained in assembly or testing of propulsion, aviation or aerospace hardware</li>
<li>High pressure testing knowledge</li>
<li>High voltage testing knowledge</li>
<li>A&amp;P license</li>
<li>Experience and knowledge operating brazement furnace</li>
<li>Experience working with thin-walled tubing</li>
<li>Experience working with Inconel, titanium, aluminum, nickel, and stainless steel</li>
<li>Knowledge of orbital tube welding (OTW)</li>
<li>Lean manufacturing (5S) knowledge and experience</li>
<li>High attention to detail in order to ensure safety and accuracy of testing procedures</li>
<li>Experience with pressure/temperature/flow measurement devices and mechanical/electrical systems</li>
<li>Strong mathematical, problem-solving, and decision-making skills. Basic computer experience</li>
<li>The ability to effectively communicate (verbal and written) with engineering and production teams at all levels of the business</li>
<li>The ability to work autonomously or as part of a team to achieve inspiring production goals</li>
</ul>
<p><b>ADDITIONAL REQUIREMENTS:</b></p>
<ul>
<li>Must be able to travel to other sites if needed</li>
<li>Must be able to lift 50lbs assisted and stand for extended periods of time</li>
<li>Must be able to work first shift (~4:00am &ndash; ~2:30PM) or second shift (~2:30PM &ndash; ~1:00AM)</li>
<li>Must be able to support overtime and weekend work requests</li>
</ul>
<p><b>COMPENSATION AND BENEFITS:</b><br>
<br>
Pay range:
<br>
Propulsion Technician/Level 1: $23.00 - $27.00/hour
<br>
Propulsion Technician/Level 2: $26.00 - $32.50/hour
<br>
Propulsion Technician/Level 3: $31.00 - $38.00/hour</p>
<p>
Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience.</p>
<p>
Base salary is just one part of your total rewards package at SpaceX. You may also be eligible for long-term incentives, in the form of company stock, stock options, or long-term cash awards, as well as potential discretionary bonuses and the ability to purchase additional stock at a discount through an Employee Stock Purchase Plan. You will also receive access to comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, short and long-term disability insurance, life insurance, paid parental leave, and various other discounts and perks. You may also accrue 3 weeks of paid vacation and will be eligible for 10 or more paid holidays per year.</p><br>
<p></p>
<p></p><div><p><b>
ITAR REQUIREMENTS:</b></p>
<ul>
<li>To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. &sect; 1157, or (iv) Asylee under 8 U.S.C. &sect; 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.</li>
</ul>
<p>SpaceX is an Equal Opportunity Employer; employment with SpaceX 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.</p>
<p>
Applicants wishing to view a copy of SpaceX's Affirmative Action Plan for veterans and individuals with disabilities, or applicants requiring reasonable accommodation to the application/interview process should reach out to EEOCompliance@spacex.com<i>.</i></p></div></div>

Propulsion Technician (Starship)

<div><p><b>Job Description</b></p>
<p>
Quantum Space is redefining mobility and autonomy beyond Earth orbit. Our Ranger spacecraft deliver high delta-V and sustained on-orbit maneuverability, enabling missions across cislunar and geostationary space that were previously out of reach. We are building the vehicles, infrastructure, and operational expertise that connect and protect assets across the Earth&ndash;Moon system.</p><br>
<p><b>
Who We&rsquo;re Looking For</b></p>
<p>
Quantum Space is seeking a Senior Test Engineer focused on Ground Support Equipment (GSE) and vacuum test systems to enable in-house development and validation of electric propulsion (EP) technologies.</p><p></p><p><br>
This role is built for an engineer who can design and build test infrastructure and operate it, someone equally comfortable developing GSE, working hands-on in a vacuum chamber, and running propulsion test campaigns. You will play a critical role in establishing and scaling our internal EP test capability.</p><p></p><p><b><br>
Where You&rsquo;ll Make an Impact</b></p>
<ul>
<li>Design and develop GSE and test infrastructure for electric propulsion systems (thrusters, feed systems, support equipment)</li>
<li>Own vacuum chamber test setups: integration, configuration, and operation for EP testing</li>
<li>Define test system requirements including vacuum performance, thermal constraints, instrumentation, and safety systems</li>
<li>Lead build, integration, and commissioning of propulsion test setups</li>
<li>Develop and execute EP test campaigns: setup, operation, data collection, and troubleshooting</li>
<li>Operate and maintain vacuum systems: pumps (turbo, cryo, roughing), valves, gauges, and support equipment</li>
<li>Troubleshoot vacuum performance issues including leaks, contamination, and system instability</li>
<li>Design and implement instrumentation and data acquisition systems for propulsion testing</li>
<li>Develop test procedures, safety documentation, and operational workflows</li>
<li>Collaborate with propulsion, mechanical, electrical, and AI&amp;T teams to ensure test readiness and data quality</li><br>
</ul>
<p><b>What It Takes</b></p>
<ul>
<li>BS or MS in Mechanical Engineering, Aerospace Engineering, or related technical field</li>
<li>5&ndash;10+ years of experience with test systems, GSE, or propulsion testing</li>
<li>Strong experience designing and building test equipment (not just operating it)</li>
<li>Hands-on experience with vacuum systems and vacuum chamber operations</li>
<li>Experience supporting or running test campaigns (setup  execution  troubleshooting)</li>
<li>Strong understanding of mechanical systems, fluid systems, and controls</li>
<li>Proven ability to troubleshoot complex system-level issues in a test environment</li>
<li>Comfortable working hands-on in lab/test settings</li>
<li>Work location within the LA area</li><br>
</ul>
<p><b>Nice-to-Have Experience</b></p>
<ul>
<li>Direct experience with electric propulsion</li>
<li>Experience with thermal vacuum or propulsion vacuum testing</li>
<li>Familiarity with LabVIEW, PLCs, or custom data acquisition systems</li>
<li>Experience with high-voltage systems associated with EP testing</li>
<li>Experience with gas delivery systems</li>
<li>Familiarity with contamination control and vacuum materials compatibility</li><br>
</ul>
<p><b>What You&rsquo;ll Get</b></p>
<ul>
<li>Ownership &ndash; Build and operate in-house propulsion test capability</li>
<li>Impact &ndash; Direct contribution to core spacecraft propulsion technology</li>
<li>Growth &ndash; Path to test architecture or propulsion test leadership</li>
<li>Compensation &ndash; Competitive salary, equity, and comprehensive benefits</li><br>
</ul>
<p><b>Additional Requirements</b></p>
<p>
To comply with U.S. Government space technology export regulations, including ITAR, applicants must be a U.S. citizen, lawful permanent resident, protected individual per 8 U.S.C. 1324b(a)(3), or eligible to obtain required authorizations.</p></div>

Senior GSE Test Engineer - Advanced Programs

<div><p><b>Job Description</b></p>
<p>
Quantum Space is redefining mobility and autonomy beyond Earth orbit. Our Ranger spacecraft deliver high delta-V and sustained on-orbit maneuverability, enabling missions across cislunar and geostationary space that were previously out of reach. We are building the vehicles, infrastructure, and operational expertise that connect and protect assets across the Earth&ndash;Moon system.</p><br>
<p><b>
Who We&rsquo;re Looking For</b></p>
<p>
We are seeking a Mechanical Engineer III to lead the design and development of electric propulsion hardware and associated subsystems, from concept through flight.</p><p></p><p><br>
This role is intended for an experienced engineer who can own propulsion-related hardware, drive design decisions, and deliver flight-ready systems. You will operate at the intersection of mechanical design, thermal management, and high-performance hardware development, working closely with propulsion, systems, and test teams.</p><p></p><p><b><br>
Where You&rsquo;ll Make an Impact</b></p>
<ul>
<li>Own mechanical design of electric propulsion subsystems (thruster assemblies, structural interfaces, feed systems, thermal management hardware)</li>
<li>Lead architecture and packaging trades for propulsion integration</li>
<li>Develop and release high-quality CAD models and drawings with full GD&amp;T</li>
<li>Perform and guide structural and thermal analysis (including high-temperature and vacuum environments)</li>
<li>Drive integration and testing of propulsion systems, including anomaly resolution and root cause analysis</li>
<li>Define and execute verification strategies (analysis, inspection, test)</li>
<li>Lead design reviews (PDR/CDR) and communicate technical decisions clearly</li>
<li>Coordinate with suppliers and manufacturing partners for precision and high-performance components</li>
<li>Mentor junior engineers and elevate team technical capability</li>
<li>Ensure designs meet performance, manufacturability, and reliability requirements</li><br>
</ul>
<p><b>What It Takes</b></p>
<ul>
<li>BS or MS in Mechanical Engineering or related field</li>
<li>5&ndash;10+ years of experience developing hardware, preferably in high-performance aerospace systems</li>
<li>Strong proficiency in Creo (or similar CAD) and drawing release processes</li>
<li>Deep understanding of GD&amp;T (ASME Y14.5)</li>
<li>Experience owning hardware through full lifecycle (design  build  test  qualification/flight)</li>
<li>Strong background in structural and thermal analysis</li>
<li>Proven ability to lead technical efforts and drive decisions</li>
<li>Strong troubleshooting and root cause analysis capability</li>
<li>Ability to work on-site in the LA area</li><br>
</ul>
<p><b>Nice-to-Have Experience</b></p>
<ul>
<li>Direct experience with electric propulsion systems</li>
<li>Familiarity with plasma environments and material selection for EP systems</li>
<li>Experience with thermal management in high-power-density systems</li>
<li>Proficiency with FEA tools (ANSYS, Nastran, etc.)</li>
<li>Experience with environmental testing (TVAC, vibration, life testing)</li>
<li>Familiarity with PLM systems (Windchill or similar)</li><br>
</ul>
<p><b>What You&rsquo;ll Get</b></p>
<ul>
<li><b>Ownership</b> &ndash; Lead development of critical propulsion hardware</li>
<li><b>Technical Depth</b> &ndash; Work on cutting-edge electric propulsion systems</li>
<li><b>Leadership</b> &ndash; Mentor engineers and influence system architecture</li>
<li><b>Compensation</b> &ndash; Competitive salary, equity, and comprehensive benefits</li><br>
</ul>
<p><b>Additional Requirements</b></p>
<p>
To comply with U.S. Government space technology export regulations, including ITAR, applicants must be a U.S. citizen, lawful permanent resident, protected individual per 8 U.S.C. 1324b(a)(3), or eligible to obtain required authorizations.</p></div>

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