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Senior Applied AI Engineer
Proofpoint, Inc.
CO
…costs, how fast and reliable it is, and whether it’s worth building at all. That’s what this team answers. We’re an Applied AI Research team, and research is our product. We take important…
Added 1 min ago
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Forward Deployed Engineer Intern
Atalanta
Washington, DC
- $100,000 to $150,000 USD / year
Backed by leading investors, Atalanta works with customers building and deploying mission-critical systems across energy, space, and defense. Our goal is to help engineers and mission…
Added 1 min ago
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Software Engineer
Atalanta
Washington, DC
- $200,000 to $250,000 USD / year
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Added 1 min ago
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Formal Methods Engineer
Atalanta
Washington, DC
- $225,000 to $275,000 USD / year
Backed by leading investors, Atalanta works with customers building and deploying mission-critical systems across energy, space, and defense. Our goal is to help engineers and mission…
Added 1 min ago
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Software Engineer Intern
Atalanta
Washington, DC
- $100,000 to $150,000 USD / year
Backed by leading investors, Atalanta works with customers building and deploying mission-critical systems across energy, space, and defense. Our goal is to help engineers and mission…
Added 1 min ago
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Forward Deployed Engineer
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Washington, DC
- $150,000 to $200,000 USD / year
Backed by leading investors, Atalanta works with customers building and deploying mission-critical systems across energy, space, and defense. Our goal is to help engineers and mission…
Added 2 mins ago
Senior Cloud Engineer
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Added 2 mins ago
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Added 3 mins ago
Fullstack Software Engineer
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…leaders like Anthropic, Google, and OpenAI. We are now focused on building the Internet of Cognition - a shared semantic layer that enables agents and humans to reason together. You will…
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Added 4 mins ago
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Process Engineer III, Serialization - IDAP
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- $80,000 to $121,250 USD / year
Resilience is a technology-focused biomanufacturing company that’s changing the way medicine is made. We’re building a sustainable network of high-tech, end-to-end manufacturing solutions…
Added 6 mins ago
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Plant Operations Coordinator (68730)
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- $18 to $25 USD / hour
…barndominiums, agricultural buildings, and fitness centers, we engineer and manufacture fully custom solutions delivered to every state in the U.S. and across Canada. No two projects are…
Added 6 mins ago
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Sr. Business Development Manager - Multifamily
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Washington, DC · Falls Church, VA
- $90,000 to $110,000 USD / year
…that the most effective approach is a complete one: because we engineer, install, monitor, and maintain your system, we are invested in its end-to-end performance. Learn more about who we…
Added 6 mins ago
Wireless Security Engineer - Open Rank (Entry to Junior)-CIPHER
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The candidate must have a graduation date of no later than August 2026
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Senior Software Engineer, Reliability
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At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together,…
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Mechanical Engineer 1 (NSSS Component Detail Design)
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Team Building: Capable of developing strong interpersonal networks and trust within the organization.
Added 7 mins ago
Physical AI Senior Engineer
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Project or Senior Geotechnical Design Engineer – Dams & Levees
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- $107,160 to $180,745 USD / year
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Valid driver's license required
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Relativity Space

Senior Fluid Systems Engineer

Long Beach, CA, United States

$132,000 - $198,000 USD

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Job details

Pay: $132,000 - $198,000 USD
Experience: 4+ years of experience working with fluids systems
Posting language: English
Posted: Nov 12, 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:

The Stage Fluids team designs and delivers the propellant, pressurant, pneumatics, and other fluid systems that turn structures into functioning rockets. The team has full ownership across design, production, test, and flight, maintaining a holistic view of Terran R, focused not on isolated parts but integrated functionality. Working on-site at the factory means you’re never far from the hardware, enabling rapid iteration and tight feedback loops across design and manufacturing. You won’t just be handed requirements: you’ll be expected to ask the right questions, collaborate with partners across the company, and ultimately find the best solutions for Terran R.

About the Role:

As a Vehicle Fluid Systems Engineer, you will be responsible for the fluid system architecture and function for a given vehicle fluid subsystem. You will apply expertise in system architecture, systems operations, and fluid thermodynamics applications to guide hardware design, system analysis, manufacturing, validation and operations.

Own the vehicle fluid subsystem architecture and schematics, including system control scheme, system and component selection and sizing
Conducting fluid and thermal analyses, including system sizing and characterization using a variety of base analytical methods (1D steady-state, fluid networks, etc.)
Leading and participating in system and hardware design and manufacturing reviews
Defining and supporting test objectives and test campaigns to validate system design, system models and overall system performance including supporting integrated vehicle testing and launch

About You:

Bachelor’s degree (Mechanical Engineering or relevant)
4+ years of experience working with fluids systems
Experience applying engineering fundamentals in system design, thermodynamics, fluid dynamics, and heat transfer
Experience with one or more fluid or thermal modeling tools for internal compressible and incompressible analysis
Proficiency in Python or a similar programing language for scientific computing and automated test/simulation data analysis

Nice to haves, but not required:

Experience with launch vehicles and spacecraft

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:

$132,000 - $198,000 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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More about this job

Skills

Design hardware
Control systems
Mechanical engineering
Python
Data analysis
Recruitment

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Jobs in the United States