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Salary
≈ $39k – $66k per year (Estimated)
Location
In office (Westminster)
Seniority
Intern
Visa
H-1B filings in 12 months: 2
Employment
Internship

Confirmed on the employer's own hiring board on Nov 3, 2026. First seen by Alion on Sep 16, 2026. CesiumAstro scores B on the Alion truth index.

Overview
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CesiumAstro is an American company founded in Austin in 2017 that builds active phased array communications payloads for satellites, aircraft and defence platforms. Its systems are software-defined and electronically steered, which lets a moving platform track several links at once without mechanical antennas, and the company manufactures them in house rather than integrating third-party subsystems. It sells mainly to defence customers and satellite operators, has raised venture funding from investors including Airbus Ventures and Lightspeed, and operates facilities in Austin, Colorado and the United Kingdom.

The CesiumAstro software team is looking for Summer 2027 interns to design embedded software for satellite communication systems.

Embedded software development interns will work closely with CesiumAstro engineers on low-level and high-level software in CesiumAstro’s space electronics products. Areas of focus will include microcontroller programming, low-level drivers, board support packages (BSP), end-use applications, and user interfaces. Assignments will be determined by a mix of project availability and the interests of the successful candidates.

Cesium interns regularly present their work to peers, mentors, and CesiumAstro executive leadership throughout the course of the summer. As such, excellent written and verbal communication skills are required.

To apply, please include a cover letter describing your interest in embedded software development and either space systems or communication systems.

JOB REQUIREMENTS AND MINIMUM QUALIFICATIONS

  • Current enrollment in a Bachelor of Science (BS), Master of Science (MS), or PhD program in Computer Science, Electrical Engineering or Computer Engineering from an accredited university.
  • GPA of 3.5 or higher.
  • Advanced coursework in embedded systems.
  • Programming experience in C or C++.
  • Familiarity with software configuration management tools, defect tracking tools, and peer review.
  • Excellent written and verbal communication skills.

PREFERRED EXPERIENCE

  • Embedded systems design using real-time Linux.
  • Understanding of multi-threaded applications and resource management.
  • Experience in embedded systems design with preemptive, multitasking real-time operating systems.
  • Knowledge of real-time system coding techniques, IP protocols, interfaces, and hardware subsystems.
  • Experience with products for military, aerospace, or automotive applications.
  • Ability to read electronics schematics and component data sheets.
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