Principal Communication Systems Engineer, CesiumAstro
$150-185k
+ Company stock options
More information about location
Office located in El Segundo, CA
Aerospace communication systems
Open for applications
Aerospace communication systems
201-500 employees
Open for applications
$150-185k
+ Company stock options
More information about location
Office located in El Segundo, CA
201-500 employees
Company mission
To deliver advanced communication capabilities for a diverse set of applications at compelling performance and cost.
Role
Who you are
- 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 our communication programs
- Bachelor’s degree in electrical engineering or a related field
- A minimum of 9 years of experience with emphasis on space-based communication payloads
- Practical experience with antenna and RF systems
- Experience working with product/component developers and vendors who provide critical functionality to the overall system
- Excellent written and verbal technical communication skills
- Proficiency with a requirements management tool such as DOORS or Jama
- 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
- Excellent problem-solving skills and analytical abilities, with the capability to identify, assess, and resolve complex technical challenges and design issues
- The ability to work well with multifunctional teams
What the job involves
- In this position, you will help develop space architecture concepts, sub-system design, payload design, requirements development, analysis and decomposition, high-level software and hardware system architecture design, concept of operations (CONOPS) development, and risk assessment
- You will coordinate activities across multidiscipline engineering teams, raise issues at the program level, and help drive complex programs to success
- Evaluate customer and operational needs to define requirements, integrate technical parameters, and assure compatibility of all physical, functional, and program interfaces
- Collaborate with the program management team to support project scheduling and coordination
- Partner with program management to be the primary outward-facing team with external customers for technical baseline discussions
- Act as the liaison between program management, engineering, and manufacturing ensuring effective and organized communications
- Participate in the 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
Our take
CesiumAstro is a startup specializing in phased array communications for aerospace applications. It manufactures antennas that support in-flight connectivity and satellite communications, addressing the significant data transfer needs of AI and autonomous vehicles.
This type of communication support is vital nowadays, when the transfer of massive amounts of data is mission-critical. The company's first antenna flew in 2023 as part of a payload for defense contractor CACI International. CesiumAstro also secured a lucrative subcontract with RocketLab to provide antennas for the Space Development Agency.
CesiumAstro has secured immense funding over the years, including a record $200 million in government financing in 2026. This investment continues to support the company's growth, R&D and manufacturing goals. It comes alongside an expansion of operations which sees CesiumAstro supporting national security.
Freddie
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 6 rounds)
Feb 2026
$270m
SERIES C
Mar 2025
$55m
GRANT
Total funding: $464.2m
Company benefits
- Health, dental, vision
- HSA and FSA
- Life, disability and retirement plans
- Company stock options
Company HQ
Bee Cave, TX
Leadership
Shey Sabripour
(CEO & Founder)Served as the Director of Spacecraft Design at Lockheed Martin for over 23 years. They also served as the CTO at Firefly Aerospace before founding CesiumAstro.
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