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Principal Embedded Software Engineer I

CesiumAstro

Job Location:

Westminster, CA - USA

Monthly Salary: Not provided by the employer

Posted: 11 June 2026 (30+ days ago)

Application Deadline: 15 September 2026

Vacancies: 1 Vacancy

Job Summary

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.

AtCesiumAstro 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 skilled and experienced Principal Embedded Software EngineerI to join our software this position you will be responsible for low-level and high-level software in CesiumAstros products through all phases of the development process. Key projects will include Linux-based single-board computers and high-reliability microcontroller systems. CesiumAstros goal is to create an out-of-the-box hardware and software experience which enhances our customers ability to rapidly integrate our products into their systems.

As a CesiumAstro software team member you will be responsible for software designs from concept through production including product roadmaps block diagrams detailed design and coding analysis test qualification and in-orbit support. The ideal candidate will have development experience at nearly every level of the software stack including microcontrollers low-level drivers board support packages (BSP) end-use applications and user interfaces. Additionally the ideal candidate will have experience in software testing and high-reliability qualification as well as software engineering and software project management practices.

The successful candidate will present engineering design review materials to our customers and executive team as well as participate in proposal-writing efforts. As such excellent written and verbal communication skills are required.

JOB DUTIES AND RESPONSIBILITIES

Design and implement software for embedded devices and systems from requirements to production and commercial deployment.
Design develop code test debug and document system software.
Review code and system designs.
Analyze code for efficiency stability and scalability.
Integrate and validate new product designs.
Support software quality assurance and optimize I/O performance.
Provide post-production/in-orbit customer support.
Interface with hardware design and development engineers.
Assess third party and open source software.

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

Bachelor of Science (BS) or Master of Science (MS) degree in Computer Science Electrical Engineering or Computer Engineering.
Minimum of 9 years of industry experience in software development.
Experience in hands-on development and troubleshooting of embedded hardware. API design for interfacing with FPGAs.
Extensive programming experience in C and an object oriented programming language preferably C.
Experience in embedded systems design with preemptive multitasking real-time operating systems (experience with real-time Linux is desirable).
Familiarity with software configuration management tools defect tracking tools and peer review.
Excellent knowledge of real-time system coding techniques IP protocols interfaces and hardware subsystems.
Excellent understanding of multi-threaded applications and resource management.
Excellent written and verbal communication skills.

PREFERRED EXPERIENCE

Experience with products for aerospace applications.
Adequate knowledge of reading electronics schematics and component data sheets.
Experience with ARM processors and fully-featured microcontrollers.
Experience in design and development of a Software Development Kit (SDK).

$158000 - $190000 a year

CesiumAstro considers several factors when extending an offer including but not limited to the role and associated responsibilities a candidates 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 torace 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.

We may use artificial intelligence (AI) tools to support parts of the hiring process such as reviewing applications analyzing resumes or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed please contact us.

Required Experience:

Staff IC

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