protocol buffers , Mqtt, C, Json, Amqp, Tls, Python, Http, REST, PID data, ERAGLONASS, UDS over IP, IEEE 80211p, CV2X, 4G LTE, OBDII, eCall, LTEV2X, ETSI ITSG5, PKI certificate management, DSRC, CatM1, NBIoT, DTLS, 5G NR, V2X communication standards, X509 certificate lifecycle

San, Tcp, python, network security, automation, Sdlc, project management