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CesiumAstro

Designs satellite communications hardware and software

Combustion Devices Engineer 2

PropulsionConfirmed live in the last 24 hours
Full-timeEl Segundo, CA, USAIn-person

About the Job

Requirements

  • A bachelor's degree in Mechanical Engineering, Aerospace Engineering, or a related field is required.
  • At least 2 years of experience with mechanical design, development, fabrication, assembly, or testing; internships count toward this experience.
  • Strong proficiency with CAD tools, including Siemens NX and SolidWorks, and the ability to model complex three-dimensional geometry of a combustion chamber cooling channel.
  • Familiarity with aerospace safety and reliability practices.
  • Ability to work as a teammate and independently to achieve goals.

Responsibilities

  • Design and develop liquid rocket engine combustion devices, including combustion chambers, pre-burners, and igniters; create part and assembly models and drawings; and perform calculations and analyses with team support.
  • Create schematics and document processes.
  • Own requirements definition, architecture trades, and system-level integration for assigned subsystems.
  • Work with the manufacturing team to produce finished engine parts; support parts through 3D printing, machining, post-processing, and inspection; and incorporate feedback to improve design for manufacturing.
  • Develop and execute test programs, analyze experimental data, and apply findings to optimize designs.
  • Collaborate across mechanical, aerospace, and controls engineering teams to deliver flight-ready hardware.

Desired Qualifications

  • Prior experience designing liquid rocket engines, combustion chambers, pre-burners, igniters, or other rocket systems.
  • Practical experience with test bench setup and performance diagnostics.
  • Hands-on engineering experience across the process, from computer work to wrench work and cleanup.
  • Experience with geometric dimensioning and tolerancing (GD&T).
  • Experience in a start-up or rapid development environment.
  • Experience with tools such as ANSYS and MATLAB.

About the Company

CesiumAstro

Designs satellite communications hardware and software

CesiumAstro builds end-to-end space and airborne communications systems, combining hardware and software to connect satellites, UAVs, and ground stations. Its products include active phased array antennas, software-defined radios, and complete RF payloads that enable electronically steered links for inter-satellite communication, high-rate downlinks, lunar communications, and 5G/NTN networks. The company ships plug-and-play, commercially manufactured, full-stack systems designed to be flexible and cost-efficient, rather than bespoke one-off solutions. Its goal is to make space-based connectivity more accessible and adaptable across space, air, and ground networks for both government and commercial customers.

Company size
501-1,000
Company stage
Debt Financing
Total funding
$1.6B
Headquarters
Bee Cave, TX
Founded
2017

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