Embedded Software Engineer, CesiumAstro

$118-142k

+ Company stock options

Linux

C++

Junior and Mid level

Los Angeles

More information about location

Office located in El Segundo, CA

Aerospace communication systems

Posted today

Aerospace communication systems

201-500 employees

B2BEnterpriseManufacturingTelecommunicationsAerospace

Posted today

$118-142k

+ Company stock options

Linux

C++

Junior and Mid level

Los Angeles

More information about location

Office located in El Segundo, CA

201-500 employees

B2BEnterpriseManufacturingTelecommunicationsAerospace

Company mission

To deliver advanced communication capabilities for a diverse set of applications at compelling performance and cost.

Job

Company

Role

Who you are

CesiumAstro is seeking an experienced Embedded Software Engineer II with a strong background in embedded Linux development and the Yocto build system
This role is ideal for engineers with hands-on experience in embedded systems, including device drivers, kernel customization, bootloaders, and board bring-up, with a preference for experience with the Xilinx platform (experience with other platforms is also valued)
Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, Computer Engineering, or related field
2+ years of professional experience in embedded software development
Proficiency in C or C++ for embedded systems
Experience developing and debugging software on embedded hardware (e.g., power systems, motors, sensors)
Understanding of multi-threaded programming and resource-constrained environments
Familiarity with version control, issue tracking, and peer review workflows
Strong verbal and written communication skills

Desirable

Practical experience with Embedded Linux and the Yocto Project
Experience with Xilinx SoCs or other microcontroller-based systems
Proficiency with bootloaders, kernel development, and system bring-up
Familiarity with CI/CD tools and practices in embedded environments
Ability to manage multiple priorities and work independently in a fast-paced environment

What the job involves

As a member of our software team, you will contribute to the full software development lifecycle, from product concept through production, participating in architecture design, implementation, testing, qualification, and in-orbit support
This role involves working closely with hardware, systems, and FPGA engineers, and provides opportunities for technical leadership and cross-disciplinary collaboration
Develop and port embedded Linux applications, device drivers, and libraries
Configure, customize, and integrate the Linux kernel and embedded bootloaders (e.g., U-Boot)
Maintain and evolve the Yocto-based Linux build system within a CI/CD pipeline
Package and deploy software images for diverse embedded hardware platforms
Create tailored Linux distributions for specific embedded applications
Collaborate across disciplines (firmware, hardware, systems) to ensure seamless system integration and performance
Participate in design reviews and contribute to customer-facing technical documentation and proposals

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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