Jobs in the United States

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Added 1 hour ago
ATE (Automated Test Equipment) Systems Engineer
Insight Global
Huntsville, AL
…and depot repair seeking a hands-on Automated Test Equipment Engineer to develop, integrate, troubleshoot, and sustain test systems for radar, RF, avionics, and defense electronic…
Added 4 hours ago
Integration Engineer, Avionics Test
Vast
Long Beach, CA
Vast is looking for an Integration Engineer, Avionics Test, to help develop the systems behind our human-rated space stations. You will drive the development and execution of human-rated…
Added 4 hours ago
Avionics Hardware Engineer III - Lunar Permanence
Blue Origin LLC
Seattle, WA
Own the development and delivery of assigned avionics hardware products or major product elements across the lifecycle, including requirements, interfaces, design, build, integration,…
Added 5 hours ago
Mass Properties Intern (Summer)
REGENT
North Kingstown, RI
REGENT's Mass Properties discipline sits at the heart of every vehicle program. As the Mass Properties Engineer Intern, you'll work directly on real, high-impact work from day one.
Added 5 hours ago
Senior Test Engineer, Lunar
Vast
Long Beach, CA
Vast is looking for a Senior Test Engineer to support our Lunar Program, reporting to the Senior Vice President, Lunar Programs. As the first dedicated test hire on the program, you will be…
Added 5 hours ago
RF Systems Engineer
Vast
Long Beach, CA
As an RF Systems Engineer, you will manage communication system requirements and verification for space stations and satellites. Your responsibilities will include RF system design, link…
Added 5 hours ago
Electrical Test Engineer - Level 3/4 (AHT)
SP - Orbital Space Systems
United States
Northrop Grumman's Space Sector has an opening for an Electrical Test Engineer - Level 3/4 to join our Test Engineering Organization in Gilbert, AZ.
Added 5 hours ago
Electrical Test Engineer - Level 3/4 (AHT)
Northrop Grumman
Gilbert
Northrop Grumman's Space Sector has an opening for an Electrical Test Engineer - Level 3/4 to join our Test Engineering Organization in Gilbert, AZ.
Added 5 hours ago
Sr. Principal Flight Avionics Responsible Engineer (Level 4)
Northrop Grumman
Melbourne
The Senior Principal Engineer Electronics will be responsible for developing and executing the program. This person will serve as a senior engineer, supporting Avionics Integration of…
Added 5 hours ago
2027 Associate Electronics Engineer/Electronics Engineer
Northrop Grumman
San Diego
The qualified candidate will become part of Northrop Grumman’s Avionics Integration organization.
Added 5 hours ago
2027 Associate Electronics Engineer/Electronics Engineer
Northrop Grumman
San Diego
The qualified candidate will become part of Northrop Grumman’s Avionics Integration organization.
Added 5 hours ago
Digital Hardware Design Engineer Co-op (Winter/Spring)(Onsite)
United States
As a Digital Hardware Design Engineer Winter/Spring co-op at Collins Aerospace,
Added 5 hours ago
Digital Hardware Design Engineer Co-op (Summer/Fall 2027)(Onsite)
United States
The Digital Hardware Design Engineer will collaborate closely with cross-functional partners, including Systems, Software, Mechanical, Environmental Effects, and Manufacturing/Operations…
Added 6 hours ago
F-15 Project Engineer
The Boeing Company
Berkeley, MO
The Boeing Defense, Space & Security (BDS) business unit is currently seeking a F-15 Project Engineer to support F-15 Software Development and Advanced Programs in St. Louis, Missouri: one…
Added 6 hours ago
Senior Aerospace Safety Engineer
The Boeing Company
Long Beach, CA
The System Safety Engineer’s responsibilities will include conducting thorough safety analyses at the airplane and system level across various engineering disciplines. This role entails…
Added 6 hours ago
Experienced Aerospace Safety Engineer
The Boeing Company
Long Beach, CA
The System Safety Engineer’s responsibilities will include conducting thorough safety analyses at the airplane and system level across various engineering disciplines. This role entails…
Added 6 hours ago
Software Engineer I (Onsite)
RTX
United States
…networks and watching data flow through a system? As a system integration software engineer, you will provide the operating environment for our application teams and support them with tools…
Added 6 hours ago
A
Test Engineer
Actalent
South San Francisco, CA
- $60 to $100 USD / hour
We are seeking a Senior Integration & Test Software Engineer to develop, deploy, and support the software systems that power testing across our long-range drone platform. This role will be…
Added 6 hours ago
FPGA Electrical Engineer III
Honeybee Robotics, LLC
Los Angeles, CA
Honeybee Robotics' Exploration Systems division is seeking an Electrical Engineer specializing in Field Programmable Gate Arrays (FPGAs). In this role you will be interfacing with…
Added 7 hours ago
BE7 Valves - Propulsion Engineer II
Blue Origin LLC
Seattle, WA
…engineers from other component teams like Systems Engineering, Avionics, Integration, and Engine Test to understand and action decisions with cross-program impacts. To support program-level…
Added 8 hours ago
Senior Electrical Integration and Test Engineer
Axiom Space
United States
…mission-driven team is seeking a bold and dynamic Senior Electrical Integration and Test Engineer II who is fueled by high accountability, execution horsepower, and driven to understand our…
Added 8 hours ago
Senior Electrical Integration and Test Engineer
Axiom Space
United States
…mission-driven team is seeking a bold and dynamic Senior Electrical Integration and Test Engineer II who is fueled by high accountability, execution horsepower, and driven to understand our…
Added 8 hours ago
Electrical Design Engineer (Sortie), Senior
Axiom Space
United States
Since Axiom Space is a very complex work environment, we are looking for a resilient, high-energy Electrical Design Engineer (Sortie), Senior to own the design and development of electrical…
Added 9 hours ago
AI
Senior Electrical Engineer
ASR INTERNATIONAL
Lakehurst, NJ
- $90,000 to $140,000 USD / year
ASR International is seeking an experienced Electrical Engineer to support the Naval Air Warfare Center Aircraft Division (NAWCAD) Lakehurst (Lakehurst, NJ location) Support Equipment…
Added 9 hours ago
2027 Associate Electronics Engineer/Electronics Engineer
CORP-Corporate Office
United States
The qualified candidate will become part of Northrop Grumman’s Avionics Integration organization.

Relativity Space

Thermal Engineer I

Long Beach, CA, United States

$90,000 - $136,000 USD

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Job details

Pay: $90,000 - $136,000 USD
Posting language: English
Posted: Oct 29, 2026

Original job description

At Relativity Space, we’re building rockets to serve today’s needs and tomorrow’s breakthroughs. Our Terran R vehicle will deliver customer payloads to orbit, meeting the growing demand for launch capacity. But that’s just the start. Achieving commercial success with Terran R will unlock new opportunities to advance science, exploration, and innovation, pioneering progress that reaches beyond the known.

Joining Relativity means becoming part of something where autonomy, ownership, and impact exist at every level. Here, you're not just executing tasks; you're solving problems that haven’t been solved before, helping develop a rocket, a factory, and a business from the ground up. Whether you’re in propulsion, manufacturing, software, avionics, or a corporate function, you’ll collaborate across teams, shape decisions, and see your work come to life in record time. Relativity is a place where creativity and technical rigor go hand in hand, and your voice will help define the stories we’re writing together. Now is a unique moment in time where it’s early enough to leave your mark on the product, the process, and the culture, but far enough along that Terran R is tangible and picking up momentum. The most meaningful work of your career is waiting. Join us.

About the Team:

Relativity’s Integrated Performance teams ensure that our products work across all systems and disciplines, from trajectory design to aerodynamics to reliability analysis and beyond. Our groups size the Terran R rocket, design its missions for customer success, reliability, and reusability, and ensure that every system on the rocket and ground is engineered correctly for the demanding environments of launch and entry. Recently, we completed the preliminary design and analysis of Terran R including Relativity’s first-ever work on launch vehicle reusability, spanning advanced trajectory simulations, wind tunnel testing, and structures analysis, among many other projects.

The Thermal team is responsible for predicting temperatures, designing thermal architectures, and guiding designs for the structures, fluids, components, and avionics of our launch vehicles. With a strong grasp of thermodynamics and all methods of heat transfer, the team addresses a vast number of thermal challenges across ground and flight phases. The team leverages first-principle hand calculations, reduced order modeling, and coupled system detailed thermal modeling to drive cross disciplinary vehicle designs. Our collaboration with hardware engineers and all other teams further enables us to overcome design and integration hurdles, ensuring a seamless and efficient development process from concept through launch.

About the Role:

Drive the architecture, sizing, and development of thermal systems like insulation, heaters, thermal protection, and environmental conditioning in collaboration with peer technical teams
Build, execute, and validate thermal analyses at the component, sub-system, and vehicle level, including supporting tool development and automation
Guide design and development engineers in the successful application of thermal sciences to achieve system and component requirements
Develop and execute tests to support thermal systems development and qualification, including test article integration, instrumentation setup, and data processing
Support vehicle and engine thermal system development and stage testing, as well as flight operations

About You:

Bachelor's degree in Engineering or related field
Experience in industry via internships or university collaborations
Strong fundamentals in heat transfer and thermal analysis
Hands-on experience with writing test plans and performing testing, instrumentation, and data analysis at the component and system level
Experience with an engineering scripting language like MATLAB or Python

Nice to haves, but not required:

Graduate degree in engineering or related field
Experience solving complex problems on integrated vehicles with design teams
Experience in component and system level thermal and fluids analysis, using relevant toolsets like Sinda/Fluint/Thermal Desktop or other commercial FEM/FDM/FVM solvers
Familiarity with cryogenic liquid rocket stage architecture, engine architecture, and operations
Understanding of aerodynamics and external flight related heating, including thermal protection system materials and thermal protection system sizing

At Relativity Space, we are committed to transparency and fairness in our compensation practices. Actual compensation will be determined based on experience, qualifications, and other job-related factors.

Compensation is only one part of our total rewards package. Relativity Space offers competitive salary and equity, a generous PTO and sick leave policy, parental leave, an annual learning and development stipend, and more! To see some of the benefits & perks we offer, please visit here.

Hiring Range:

$90,000 - $136,000 USD

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

If you need a reasonable accommodation, please contact us at accommodations@relativityspace.com.

Please note: Relativity Space does not accept unsolicited resumes, candidate profiles, or referrals from recruitment agencies or search firms. Any unsolicited submission - via email, our website, social media, or directly to an employee - will be deemed the property of Relativity Space, and no fee will be owed absent a current, fully executed agreement with Talent Acquisition that specifically authorizes submissions for the applicable role.

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Skills

Collaboration
Part requirements
Process data
Data analysis
The MathWorks MATLAB
Python
FEM
Recruitment

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