Senior Mission Design and Navigation Engineer

Posted Yesterday
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Long Beach, CA, USA
In-Office
148K-222K Annually
Senior level
Aerospace • Hardware • Robotics • Software • Manufacturing
Building reusable rockets to empower science and exploration.
The Role
Own mission design and trajectory analysis for a 2028 Mars Orbiter mission. Develop interplanetary and Mars orbital trajectories, navigation processes, orbit determination, maneuver analyses, and DSN tracking measurement interfaces. Build mission design tools, software requirements, architectures, and engineering practices while coordinating with GNC, spacecraft systems, communications, software, and mission operations teams. Provide technical ownership across mission design and flight navigation activities.
Summary Generated by Built In

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 Interplanetary Sciences Program was established to expand access to scientific exploration across our solar system. Its mission is to make planetary research faster, more affordable, and more capable than ever before by rethinking how science missions are designed, built, and operated. The program aims to enable scientists to send instruments to distant worlds without decades of development or prohibitive costs. By creating a sustainable model for interplanetary exploration, we are transforming space science from an occasional event into a continuous process of discovery that accelerates knowledge, broadens participation, and inspires the next generation of explorers.   

About the Role:

As a Mission Design and Navigation Engineer within the Interplanetary Sciences Program, you will perform mission design activities for our 2028 Mars Orbiter mission. You will perform trajectory and navigation analyses that define how the spacecraft travels to Mars and achieves the orbital conditions required to accomplish its science mission. 

As the program progresses toward flight, your responsibilities will expand into end-to-end ownership of mission design and navigation, including interplanetary trajectory design, Mars orbit design, orbit determination, navigation data processing, and interfaces with the Deep Space Network (DSN). 

You will develop the engineering practices, processes, tools, interfaces, and software requirements needed to support mission design and flight navigation. You will work across spacecraft systems, GNC, communications, mission operations, and software teams to ensure the mission can be designed, navigated, and operated successfully from launch through Mars orbital operations. 

Responsibilities include: 

  • Own mission design and associated trajectory analysis for the 2028 Mars Orbiter mission
  • Develop and optimize interplanetary trajectories and Mars orbital trajectories subject to spacecraft, communications, operations, and science constraints
  • Grow into technical ownership of flight navigation, including orbit determination, trajectory estimation, maneuver analysis, and navigation data processing
  • Define requirements, interfaces, and methods for processing DSN radiometric tracking measurements, including Doppler, range, and Delta-DOR
  • Serve as the primary navigation interface between the Interplanetary Sciences Program and the Deep Space Network
  • Develop and maintain mission design and navigation tools, software requirements, architectures, and analysis capabilities
  • Act as an authority for Mission Design and Navigation, working across GNC, spacecraft systems, communications, software, and mission operations

About You:

  • Bachelor’s degree in Aerospace Engineering, Astronautical/Aeronautical Engineering, Computer Science, Mathematics, Physics, or a similar technical discipline with 5+ years of related experience
  • Experience in spacecraft mission design, astrodynamics, flight navigation, orbit determination, or mission design and navigation software development
  • Strong understanding of orbital mechanics, trajectory analysis, and the engineering methods used to design and navigate spacecraft missions
  • Experience with radiometric navigation and orbital determination 
  • Ability to work across disciplines and clearly communicate technical decisions, requirements, and tradeoffs to engineering stakeholders
  • Experience working with software developers to define requirements and architectures for engineering or mission-critical software systems
  • Software development experience in Python, MATLAB, or similar 

Nice to Have:

  • Experience with MONTE mission design and navigation software and tools
  • Experience supporting interplanetary or deep-space missions
  • Experience with the Deep Space Network
  • Experience processing or analyzing DSN tracking measurements, including Doppler, Range, and Delta-DOR
  • Experience with flight navigation operations, maneuver design and analysis, or orbit determination
  • Familiarity with DSN systems, interfaces, documentation, and navigation data products
  • Familiarity with software and systems configuration management in a mission-critical environment

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:
$148,000$222,000 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 [email protected].

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.

Skills Required

  • Bachelor's degree in Aerospace Engineering, Astronautical or Aeronautical Engineering, Computer Science, Mathematics, Physics, or a similar technical discipline
  • 5+ years of related experience
  • Experience in spacecraft mission design, astrodynamics, flight navigation, orbit determination, or mission design and navigation software development
  • Strong understanding of orbital mechanics, trajectory analysis, and spacecraft mission design and navigation methods
  • Experience with radiometric navigation and orbit determination
  • Ability to work across disciplines and communicate technical decisions, requirements, and tradeoffs to engineering stakeholders
  • Experience defining requirements and architectures for engineering or mission-critical software systems with software developers
  • Software development experience in Python, MATLAB, or similar
  • Experience with MONTE mission design and navigation software and tools
  • Experience supporting interplanetary or deep-space missions
  • Experience with the Deep Space Network
  • Experience processing or analyzing DSN tracking measurements, including Doppler, Range, and Delta-DOR
  • Experience with flight navigation operations, maneuver design and analysis, or orbit determination
  • Familiarity with DSN systems, interfaces, documentation, and navigation data products
  • Familiarity with software and systems configuration management in a mission-critical environment

Relativity Space Compensation & Benefits Highlights

  • Healthcare Strength Health coverage is presented as comprehensive, including medical, dental, vision, company‑funded HSA contributions, mental‑health resources, and access to One Medical. Wellness supports such as an EAP, wellness stipend, and gym discounts are also highlighted.
  • Parental & Family Support Parental benefits are positioned as generous and are paired with a $10,000 stipend for fertility, adoption, and other family‑building needs. Partnership with Carrot Fertility and a return‑to‑work program further bolster this area.
  • Equity Value & Accessibility Equity is included for full‑time employees alongside salary and a 401(k), with four‑year vesting commonly cited. This signals broad access to ownership as part of total rewards.

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The Company
HQ: Long Beach, CA
2,200 Employees
Year Founded: 2016

What We Do

Relativity Space is on a mission to better connect humanity to space and the universe beyond our planet. Our medium-to-heavy lift reusable rocket, Terran R, 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.

Why Work With Us

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.

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Relativity Space Offices

OnSite Workspace

At Relativity Space, we are an office-first company. We believe our best work happens in person—where collaboration is faster, problem-solving is sharper, and ideas flow more freely.

Typical time on-site: None
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HQThe Wormhole
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Launch Complex 16
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NASA Stennis Space Center
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Kent, WA
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Washington, DC
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