# Senior RF Test Engineer I - Antenna

**CesiumAstro**

- **Location:** Austin, TX
- **Workplace:** On-site
- **Salary:** Not disclosed
- **Clearance:** None required
- **Eligibility:** US person or protected individual
- **Export control:** ITAR/EAR controlled
- **Visa:** Not specified
- **Discipline:** Engineering
- **Seniority:** Senior
- **Posted:** 2026-01-08

[Apply on CesiumAstro](https://jobs.lever.co/CesiumAstro/f83bc8e4-2d6f-4d4b-81aa-27ae3d34cd24)
[View on Outerspace Today](https://terminal.outerspacetoday.com
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_**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._
At **CesiumAstro**, 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’re seeking a **Senior ****Antenna Test Engineer I** with experience in RF anechoic chamber measurements and Antenna characterization to join our Test Engineering team. You’ll work closely with RF, antennas, and systems engineers to define, execute, and analyze antenna measurement campaigns — including radiation patterns, gain, efficiency, polarization, and over-the-air performance — using state-of-the-art chamber setups.

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