The 636th Electronic Systems Squadron (ESS) is a United States Air Force unit that operates under the Air Force Life Cycle Management Center’s Electronic System Center (AFLCMC/ESC). Established in 1940 as the 636th Bombardment Squadron, it has since evolved to focus on electronic warfare systems, surveillance, and cyber security. The squadron is responsible for researching, developing, testing, integrating, and fielding complex airborne electronic systems, including sensors, weapons, and communication systems, across various Air Force platforms. The 636th ESS plays a crucial role in ensuring the Air Force’s technological advantage and maintaining readiness to support global operations.