Spacecraft Thermal Engineer - Mid-Career (TS/SCI)
Millennium Space Systems
Millennium Space Systems is hiring a Thermal Engineer to support the Spacecraft Development Program by developing and analyzing thermal configurations, testing, and flight operations across all system stages. Responsibilities include creating thermal models, supporting proposal efforts, and collaborating with PMs and customers. This is a 1st shift, onsite position in California, requiring TS/SCI clearance eligibility. #J-18808-Ljbffr Millennium Space Systems
- ...missile warning and Earth observation. Job Description Thermal Engineers support the Spacecraft Development Program Managers and Chief Systems Engineer... ...defined by 22C.F.R. and be able to obtain and maintain a TS/SCI Security Clearance. Minimum Qualifications Bachelor’s...SuggestedInterim roleRelocationVisa sponsorshipWork visaRelocation packageFlexible hoursShift workDay shift
$117.3k - $175.9k
...mechanical and aerospace engineers, VSD provides national... ...; propulsion; thermal control; orbital mechanics... ...design and analysis of spacecraft thermal control systems... ...Current and active TS/SCI clearance (SSBI) We offer... ...to help advance your career Education assistance programs...SuggestedFull timeFor contractorsWork at officeImmediate startRemote workRelocation packageFlexible hours$73.9k - $110.9k
SW Integration and Test Engineer Level 2/ 3 - TS/SCI - NG Space Systems - R10213511-3 Join to apply for the SW Integration and Test Engineer Level 2/ 3 - TS/SCI - NG Space Systems - R10213511-3 role at Northrop Grumman RELOCATION ASSISTANCE: No relocation assistance available...SuggestedRemote workRelocationShift work$118.3k - $224.9k
...seeking an experienced Senior Principal Thermal Engineer to join the Mechanical Analysis and... ...CA and requires U.S. citizenship and a TS/SCI security clearance. What You Will Do Perform... ..., retirement & work/life benefits; career development; recognition programs; parental...SuggestedFlexible hours$195k - $250k
...INC Job Title Aerospace Engineer Location CA Los Angeles... ...Security Clearance Required TS/SCI POSITION OVERVIEW AND PRIMARY... ...board submissions Mentor mid-level engineers and analysts;... ...will be available on the Company Careers portal. REQUIRED...SuggestedFull timeContract workFor contractorsLocal area$98.6k - $145k
Job Summary As a Lead Spacecraft RF Payload Engineer, you will design and develop state‑of‑the‑art, space‑based RF payloads for our customers. This... ...CCSDS standards Master's Degree or higher Current SSBI or TS/SCI clearance Benefits / Total Rewards At Millennium Space...Flexible hours- Varda Space Industries, Inc. is seeking a Senior Thermal Analysis Engineer in El Segundo, California. The role involves developing and maintaining... ...to ensure the health and performance of Varda’s spacecraft through all mission phases. You will work independently, collaborate...Flexible hours
$95.5k - $181.7k
...Senior Thermal Engineer – Onsite Date Posted: 2026-05-04 Location: 2000 E El Segundo Blvd, BLDG... ...robustness across Raytheon products. We seek a mid-level Senior Thermal Engineer to join... ..., retirement and work/life benefits, career development and recognition programs. Parental...Temporary workWork at officeRelocation packageFlexible hours$95.5k - $181.7k
...Senior Thermal Engineer The Mechanical Analysis and Test (MA&T) Department is responsible for ensuring structural and thermal design... ...technically balanced solutions. The MA&T team is seeking a mid-level career Senior Thermal Engineer to join our MA&T Center in El...Temporary workWork experience placementWork at officeRemote workRelocation packageFlexible hours$117.3k - $175.9k
The Aerospace Corporation is seeking a Spacecraft Thermal Engineer in El Segundo, CA, to lead thermal system designs and engage with key defense and civil agency customers. The ideal candidate will have at least 6 years of thermal engineering experience and will provide...$75.8k - $144.2k
...100 years of experience and renowned engineering expertise to meet the needs of today’s... ...responsible for ensuring structural and thermal design robustness across the Raytheon... ...solutions. The MA&T team is seeking a mid-level career Thermal Engineer II to join our MA&T Center...Temporary workWork experience placementWork at officeRemote workRelocation packageFlexible hours- Varda Space Industries, Inc. in El Segundo, California, is looking for a Thermal Hardware and Test Engineer responsible for hardware design, build, and testing for thermal and fluid systems in spacecraft. This is a hands-on role requiring mechanical, electrical, and fluid...Flexible hours
$98.6k - $133.4k
...Millennium Space Systems (MSS) has an exciting opportunity for a Spacecraft Harness Engineer (Level 2 or Level 3) to join the MSS team in El Segundo,... ...Qualifications (Desired Skills/Experience): Active DoD TS or TS/SCI Clearance. Experience with the successful design and...Permanent employmentWork experience placementFor subcontractorInterim roleLive inImmediate startRelocationVisa sponsorshipWork visaRelocation packageFlexible hoursShift workDay shift- ...Thermal Engineer (All Levels) Venturi Astrolab, Inc. (Astrolab) is pioneering new ways to explore... ...with planetary rover systems, spacecraft, or space-grade thermal components Experience... ...process, please send a request to careers@astrolab.space. We strive to remove unconscious...Home officeFlexible hours
$99k - $177k
...company focused on national security space. As an Experienced Spacecraft Systems Engineer, you will support the technical execution for programs and... ...with program management principles and tools An Active TS/SCI U.S. Security Clearance. Location and Security Clearance...- ...IESE Solutions is seeking Aerospace Systems Engineers to support the U.S. Space Forces mission... ...processes. · Must have an active TS/SCI Benefits As a growing small engineering... ...Continuous education sponsorship Career opportunities to participate in the next...Contract workTemporary workFor contractorsWork experience placementFlexible hours
- ...Job Description Job Description The Spacecraft Operations Engineer at Waypoint S plays a critical role in managing daily operations and supporting... ...and anomaly resolution. This position requires an active TS/SCI clearance or eligibility for reissuance and a deep...Full time
$117.3k - $226.9k
...take your place in space. The Systems Engineering Division (SED) provides unmatched... ...business travel ~ This position requires a TS/SSBI/SCI security clearance, which is issued by... ...programs to help advance your career ~ Education assistance programs ~ An...Full timeFor contractorsImmediate startRemote workRelocation packageFlexible hoursShift work$117.3k - $175.9k
...expertise in vehicle engineering, guidance, navigation,... ...mechanics, propulsion, thermal control, orbital mechanics... ...of hardware used for spacecraft and launch vehicles,... ...and mentor early‑career staff. Demonstrated ability... ...ability to obtain a TS/SCI security clearance. Compensation...For contractorsRemote workRelocation packageFlexible hours- ...Senior Thermal Modeling Engineer Radiant is seeking a driven Senior Thermal Modeling Engineer with expertise in CFD and thermal FEA modeling. You will design, develop and implement simulations for the Kaleidos microreactor to ensure high fidelity, reliability, and safety...Full timeRemote workFlexible hoursWeekend work
- ...large number of payloads from its host spacecraft at high velocities without firing a thruster... .... What you’ll do Design and analyze thermal hardware (MLI blankets, heaters,... ...Electrical, GNC, Propulsion and System Engineering functional teams. Map temperatures on structural...Permanent employmentFor subcontractorFlexible hours
$107.5k - $150k
...CA Employment Type Full time Location Type On-site Department Engineering Mechanical Engineering Compensation $107.5K – $150K. Offers equity... ...summer, with initial customer deliveries beginning in 2028. Thermal Modeling Engineer (CFD) Radiant is seeking a driven Thermal...Full timeSummer workImmediate startRemote workFlexible hoursWeekend work$75k - $125k
...large number of payloads which can be deployed from their host spacecraft at high velocities without firing a thruster. This is not a... ...in space. What You’ll Do: Space Kinetic is looking for a Thermal Engineer to assist with thermal analysis, hardware design, hardware...Permanent employmentFor subcontractorFlexible hours- ...Thermal Engineer As a Thermal Engineer at Impulse, you will be responsible for thermal management of spacecraft from concept, analysis, and design, to implementation, testing, and flight while working closely with a fast-paced, agile team that strives to make a high...Permanent employmentFull time
- ...Senior Principal Thermal Engineer Raytheon is seeking an experienced Senior Principal Thermal Engineer to join the Mechanical Analysis and Test (MA&T) Department. The Thermal Engineer is responsible for detailed thermal analysis on products throughout their lifecycle...
$137.8k - $172.2k
...future generations. Role Summary As a Staff Motor Thermal Engineer, you will lead the thermal architecture and cooling strategy... ....com. You can apply for this role through careers.rivian.com (or through internal-careers-rivian.icims.com if you...Full timeContract workTemporary workPart timeLocal areaShift work$140.33k - $179.31k
...bustling in‑space ecosystem. About This Role As the Senior Thermal Analysis Engineer, you will serve as a key member of the vehicle engineering... ...directly influences design and performance of Varda’s spacecraft and will often flex between quick evaluations and high‑fidelity...Permanent employmentImmediate startRelocation packageFlexible hours$130k - $180k
...with the ultimate goal of enabling human life on Mars. SR. THERMAL ENGINEER, THERMAL & FLUID ANALYSIS (STARSHIP) As a Senior Thermal Engineer... ...Mars, and beyond. Responsibilities Own thermal design of spacecraft, launch vehicles, and hardware, from initial high-level...Permanent employmentTemporary workWeekend work- Thermal Engineer III - Advanced Manufacturing Hawthorne, CA Who We’re Looking For Quantum Space is redefining mobility and autonomy in cislunar and geostationary space. Our Ranger spacecraft deliver high delta‑V and on‑orbit maneuverability that enable customers to access...Permanent employment
$140.33k - $179.31k
Varda Space Industries in El Segundo, CA is seeking a Senior Thermal Analysis Engineer to join our dynamic vehicle engineering team. This role involves developing and maintaining thermal system architectures for our space vehicles, collaborating with various teams to ensure...Flexible hours
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