RESPONSIBILITIESDesign, implement, and maintain firmware components for eUICC and secure element subsystems on vendor baseband platformsDebug and resolve issues across AP-BB-SE interfaces, including ISO7816, SWP, and proprietary channelsContribute to system-level architecture discussions involving eSIM provisioning, activation, and lifecycle managementAnalyze and ensure compliance with GSMA and 3GPP specifications related to eUICC and cellular connectivity