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Senior Spacecraft Systems Engineer II

CesiumAstro

Westminster, CO permanent

Posted: March 1, 2026

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Quick Summary

We are looking for a Senior Spacecraft Systems Engineer II to design and develop spacecraft systems for launch vehicles and other space and airborne platforms. The ideal candidate will have expertise in spacecraft systems engineering and experience with design, development, and testing of spacecraft systems. The successful candidate will be responsible for leading a team of engineers and collaborating with cross-functional teams to deliver high-quality spacecraft systems.

Job Description

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 looking to add a Senior Spacecraft Systems Engineer II to our team. If you enjoy working in a startup environment and are passionate about developing leading-edge phased arrays for satellites, spacecraft, and aerospace systems, we would like to hear from you.

The ideal candidate will have a strong background in system engineering, experience in space technology, and the ability to be the technical point of contact for a spacecraft architecture trades and subsystem requirement development. You will coordinate activities across multidiscipline engineering teams, raise issues at the program level, and help drive complex programs to success.

Your work will have a direct impact on the success of the company. You will work closely with the engineering team, program management to ensure the successful build and launch of our satellite. Element will be the largest, most powerful rideshare satellite in LEO. We’re launching eight of them in the next four years, starting with our first launch this year. Together, our small team will design, build, and iterate to reduce mass and cost while increasing performance, reliability, and manufacturability of a new generation of satellites. Let’s build!


JOB DUTIES AND RESPONSIBILITIES:
• Enable and ensure mission success through the tools, mindset, and processes of systems engineering.
• Evaluate customer and operational needs to define requirements, integrate technical parameters, and ensure compatibility of all physical, functional, and program interfaces.
• Decompose system requirements to applicable spacecraft subsystems
• Conduct space vehicle architecture trades
• Develop space vehicle concept of operations (CONOPS)
• Collaborate with the program management team to support project scheduling and coordination.
• Participate in development of system engineering processes for requirements management, flow down, and traceability.
• Perform risk analysis and develop mitigation strategies.
• Identify and resolve issues that may impede the progress of engineering teams.
• Foster a culture of efficiency and continuous improvement within our programs.


JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS:
• Bachelor’s degree in engineering (electrical engineering preferred)
• A minimum of 6 years of experience with emphasis in spacecraft design
• Practical experience with space vehicle electrical power subsystems
• Experience with a requirements management tool such as DOORS or Jama
• Excellent written and verbal technical communication skills.
• Ability to define work direction, track milestones, and demonstrate progress on large
• open-ended projects.
• Sense of urgency, with the ability to work well under pressure.
• The ability to work well with multidisciplinary teams.


CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills. Full-time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans. CesiumAstro 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. Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members not through our approved vendor list or Talent Acquisition will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees.

CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills. Full-time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans.

CesiumAstro 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.

Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members not through our approved vendor list or Talent Acquisition will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees.

CesiumAstro considers several factors when extending an offer, including but not limited to, the role and associated responsibilities, a candidate’s work experience, education/training, and key skills. Full-time employment offers include company stock options and a generous benefits package including health, dental, vision, HSA, FSA, life, disability and retirement plans.

CesiumAstro 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.

Please note: CesiumAstro does not accept unsolicited resumes from contract agencies or search firms. Any unsolicited resumes submitted to our website or to CesiumAstro team members will be considered property of CesiumAstro, and we will not be obligated to pay any referral fees.

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