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Salary
≈ $36k – $66k per year (Estimated)
Location
In office (Westminster)
Seniority
Intern
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H-1B filings in 12 months: 2
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Internship

Confirmed on the employer's own hiring board on Nov 4, 2026. First seen by Alion on Sep 15, 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 hardware team is looking for Summer 2027 interns to design and build RF electronics hardware and antennas for satellite communication systems.

RF hardware development interns will work closely with CesiumAstro engineers on product development, schematic design, test, and manufacturing of space electronics. Areas of focus will include either board-level RF electronics design (e.g. front-ends with amplifiers, switches, filters, etc.) system design, or antenna design. Assignments will be determined by a mix of project availability and the interests of the successful candidates.

CesiumAstro 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 RF hardware or antennas 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 Electrical Engineering or Physics from an accredited university.
  • GPA of 3.5 or higher.
  • Advanced coursework in RF & microwave engineering.
  • Upper-level undergraduate coursework in electromagnetics.
  • Practical experience designing and building electronics hardware for a research project, competition team, extracurricular activity, or advanced engineering course.
  • Hands-on experience with lab instruments such as network analyzers, power sensors, oscilloscopes, spectrum analyzers, electronic loads, and signal generators.
  • Excellent written and verbal communication skills.

PREFERRED EXPERIENCE

  • Familiarity with electronics schematic and layout tools such as Altium.
  • Advanced coursework in antennas.
  • Advanced coursework in communication systems.
  • Advanced coursework in electromagnetics.
  • Familiarity with circuit and physics simulation tools such as Ansys HFSS and ADS.
  • Familiarity with programming languages such as Python.
  • Aerospace or automotive electronics design and development.
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