Senior Combustion Devices Engineer

Please Note: To conform with the United States Government Space Technology Export Regulations, the applicant must be a U.S. citizen, lawful permanent resident of the U.S., conditional resident, asylee or refugee (protected individuals as defined by 8 U.S.C. 1324b(a)(3)), or eligible to obtain the required authorizations from the U.S. Department of State.

Cesium Astro is a developer of out‑of‑the‑box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We offer a dynamic, cross‑functional environment where individuals can learn, develop, and engage across our organization. If you are looking for hands‑on, interactive, and autonomous work, this is the place for you.

Senior Combustion Devices Engineer I – Primary responsibilities include working across the full hardware lifecycle from early concepts and CAD models through manufacturing, test execution, and design iteration.

• Design and develop a variety of combustion devices for liquid rocket engine, combustion chambers, pre‑burners, igniters. Create models and drawings of parts and assemblies. 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 manufacturing team to create finished engine parts. Support parts through 3‑d printing, machining, post‑processing, and inspection. 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.

• Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related field.
• 4+ years of experience with mechanical design, development, fabrication, assembly, or test (internships included).
• Strong proficiency in CAD tools (Siemens NX, Solid Works) – the ability to model complex three‑dimensional geometry of the combustion chamber cooling channel.
• Familiarity with aerospace safety and reliability practices.
• Excellent written and verbal communication skills.
• Ability to work as a teammate and independently to achieve ambitious goals.

• Prior experience designing liquid rocket engine, combustion chambers, pre‑burners, igniters or other rocket systems.
• Practical experience in test bench setup and performance diagnostics.
• Hands‑on engineering (Full‑stack: computer to wrench to broom).
• Geometric dimensioning and tolerancing (GD&T).
• Experience in a start‑up or rapid development environment.
• Experience with tools such as ANSYS and MATLAB.

Salary: $140,000 - $168,000 per year.

Full‑time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans.

Cesium Astro is an Equal Opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected Veteran Status, or any other characteristic protected by applicable federal, state, or local law.