We are looking to add a RF Engineer Technician 2 to our team. If you are excited about working in a startup environment, have a strong work ethic, and are passionate about cutting-edge electronics, we would like to hear from you.
In this position, you will work closely with Cesium engineers to create Antenna & RF test setups, execute test plans, and produce timely, reliable test results. You will have the opportunity to use and maintain state-of-the-art electronics lab instrumentation, such as anechoic chambers, spectrum analyzers, VNAs, Signal Generators, automated power supplies/loads, and more. You will be challenged to propose and fabricate intricate test setups to increase productivity and improve test results.
Many of our products include active phased arrays (a.k.a. active electronically scanned arrays, or AESAs). These are antenna products with active RF circuitry integrated with the antenna. This adds complexity to the test architecture, including power, digital control, and thermal effects. As such, direct experience with phased array (or AESA) testing is preferred.
Core day-to-day activities will include aligning with engineers to test and troubleshoot complex electronics and RF circuitry from component level to system level. As such, the ability to understand and work from drawings, diagrams, schematics, and test procedures is key.
As a small company, the Cesium team “wears many hats.” Candidates should be comfortable with a varied workflow that may involve multitasking between test setup creation, test execution, lab organization, and other related tasks.

CesiumAstro builds high-performance communications systems for space and airborne platforms.
We design, engineer, and manufacture advanced modules, payloads, and satellites that power real-time connectivity across defense, commercial, and civil missions. Our multi-domain solutions span LEO, GEO, airborne, and lunar applications, supporting mission-critical communications where reliability, scalability, and responsiveness matter most.
With offices in Texas, Colorado, California, the United Kingdom, Germany, and Japan, CesiumAstro’s global operations bring together world-class expertise in RF systems, software-defined radios, phased arrays, mission systems, and vertically integrated manufacturing.
We’re hiring. Explore open roles at CesiumAstro.com/careers.