**Description**

The Defense Systems Group at Leidos has an immediate opening for a **Senior Principal RF Antenna Systems Engineer** at our St. Petersburg, FL facility. This position serves as a senior technical authority and system architect supporting the development of advanced phased array antenna systems for mission-critical defense applications.

In this role, you will lead the architecture, design, analysis, integration, and fielding of complex RF antenna systems supporting Department of Defense and national security customers. You will provide technical leadership across multi-disciplinary engineering teams and serve as a key interface to customers, program management, and capture teams.

The St. Petersburg facility specializes in the design, modeling and simulation, prototyping, integration, and testing of advanced electronic systems, with a focus on embedded communications systems, Software Defined Radios (SDR), phased array antenna systems, and secu...