[20210625~ ] Google Korea Software Engineer[20210625] LG전자 퇴사[20170703~20191231] 한국(SKT/KT/LGU)/일본(KDDI, DCM, DPAC, Softbank) 통신사업자 VoLTE/VoWiFi/IMS Service 개발업무[20160321~20170630] 북미/캐나다 VoLTE/VoWiFi/IMS Service 개발업무 (Sprint, RGS, BELL, TLS, FRD 통신사업자)[20151220~20160318] 스페인/독일/러시아/캐나다/오스트리아 통신사업자 (VDF, CIS, CA, AU) VoLTE/IMS Service 개발업무 - Unified Communications Service / Google IMS Interface[20150725~20151219] 유럽통신사 VoLTE/IMS Service 개발업무[20150131~20150724] IMS Task - Unified Communications Service / Google IMS Interface 개선업무[20141105~20150130] 유럽 통신사업자(VDF, Tele2), 캐나다 통신사업자(RGS) VoLTE/IMS Service 개발업무[20141001~20141104] 중국 통신사업자(CMCC, CT) VoLTE/IMS Service 개발업무[20140501~20141001] 홍콩/싱가폴 통신사업자(PCCW, CSL, H3G, STL, SHB) VoLTE/IMS Service 개발업무[20140120~20140430] UICC 이동성 단말 Call logic / IMS Service 개발업무 - Unified Communications Service (Conference call, SRVCC, Emergency call, Supplement Service)[20131105~20140119] RCS Blackbird 개발업무 - System Interface, Alternative Configuration Service, Boot-up process, Capability Discovery Service, End User Confirmation Service[20100601~20131104] RCS-e 개발업무 - System Interface, Alternative Configuration Service, Boot-up process[20100208~] (LG전자 입사) IMS, RCS, VoLTE/ViLTE/VoWiFi 개발업무