The Principal RF Test Engineer I role at CesiumAstro involves leading the design, analysis, and implementation of test systems for advanced satellite and aerospace communication platforms. Key responsibilities include architecting RF test architectures, conducting complex hardware measurements, and collaborating with cross-functional teams to define test requirements and present results to stakeholders. The position also entails managing laboratory equipment and participating in early-stage design reviews. This opportunity appeals to engineers seeking an autonomous, hands-on environment within a dynamic startup culture. The role offers significant professional growth through involvement in proposal writing and direct interaction with executive leadership, while providing a comprehensive benefits package and stock options.