Turbomachinery Engineer II

***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.*

At **CesiumAstro**, we are developers and pioneers of out-of-the-box communication systems for satellites, UAVs, launch vehicles, and other space and airborne platforms. We take pride in our dynamic and cross-functional work environment, which allows us to learn, develop, and engage across our organization. If you are looking for hands-on, interactive, and autonomous work, CesiumAstro is the place for you. We are actively seeking passionate, collaborative, energetic, and forward-thinking individuals to join our team.

We are seeking a highly motivated **Turbomachinery Engineer II** to support the design, development, and testing of next-generation rocket propulsion systems. In this role, you will be responsible for creating and optimizing critical turbopump hardware from initial concept through flight-ready implementation. Working closely with multidisciplinary engineering and manufacturing teams, you will contribute to the rapid development of high-performance propulsion technologies in a fast-paced environment where hands-on problem solving, technical rigor, and continuous innovation are essential to mission success.

### JOB DUTIES AND RESPONSIBILITIES

• Design and develop a variety of turbopump parts, including cryogenics pumps, turbines and seals. Create models and drawings of parts and assemblies. Perform calculations and analyses with team support.
• Own requirements definition, architecture trades, and system-level integration for assigned subsystems.
• Create schematics and document processes.
• Perform CFD and FEA analyses to evaluate performance parameters such as efficiency, head curves and mechanical integrity under operating conditions.
• Work with manufacturing team to create finished turbomachinery parts. Support parts through 3d-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.

### JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

• Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, or a related field.
• 3+ years of experience in aerospace propulsion systems or related areas.
• Hands-on proficiency in CAD tools (Siemens NX, SolidWorks)
• Demonstrated expertise in structural or mechanical design for flight hardware.
• Experience in early-stage vehicle architecture and design trades.
• Strong analytical and problem-solving skills with high attention to detail.
• Willing to make mistakes, take responsibilities, work independently and be transparent about your work
• Excellent written and verbal communication skills.

### PREFERRED EXPERIENCE

• Prior experience designing turbopump parts, including cryogenic pumps, turbines and seals, 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).
• Familiarity with aerospace safety and reliability practices.