Vahe Minasyan

WORK HISTORY

EDUCATION

SKILLS

ABOUT VAHE MINASYAN

I am Mobile Core engineer with over 8 years of professional experience on GSM-2G/UMTS-3G/LTE-4G networks gained while working at large telecommunication companies, where I interacted with different vendors and designed, configured and implementing mobile core elements and network devices. Successfully completed several project implemented for the first timeConfiguration, troubleshooting, design and implementation of new products for mobile services•Strong understanding an experience with GSM-2G/GPRS/UMTS-3G/LTE-4G standards, strong understanding of the call-flow processing. Strong troubleshooting skills with different tools: wireshark•Excellent Understanding of the end-to-end network architecture and network element functionality including: MME, SGW, PGW, GGSN, SGSN, PCF/PCRF, HLR, HSS, DNS, MSC, Evolved Packet Core (EPC)•Deep technical knowledge on Diameter protocol, SS7, SIGTRAN and principles(MTP-L2, MTP-L3, M3UA/M2PA/SUA, SCCP, SCTP, MAP, RANAP, BSSAP, BSSGB (+)),OSI/TCP/IP models protocols OSPF, BGP,STP,TCP,UDP,IP,SCTP, packet forwarding, IP design, VLANs, STP, SCTP, Diameter, NAT, Ipsec, GRE, GTPC, GTPU•APN creation, DPI/PCI configuration, IP pool design, DNS records creation/delete, charging and policy options for the different services•LTE outbound roaming design and PGW configuration, S6a/S8 interface troubleshooting•Working with roaming partners. Discovering signaling problems with roaming partners by analyzing the traces, Gn interface trace analyze using wireshark•IU-PS/Gb/Gn/S1/Gi/Sgi/Gs/SGs/Gn/S6a/S5/S8 over IP design and configurationConfiguration, troubleshooting, administration of LTE EPC Core, 3G Core elements network:oHuawei SGSN/MME-USN9810, SGW/PGW-UGW9811, SGW/PGW - UGW9811, HLR/HSS - HSS9860, STP/DRA – Huawei SPS, L3 switch S9303, Huawei Alcatel-Lucent SDM 8650, HP HLRoEricsson GGSN, MPG120, EPG-SSR-8020, RNC3820/3810, MGW R5/6, IPWORKS DNS serversoCommissioning and implementation of new GGSN/SGW/PGW EPG-SSR-8020,RAN(radio access network) RNC 3810/3820, and implementation of APN for L2TP/private apn in all Mobile core elements: SGSN/MME, GGSN/SGW/PGW,DNS, HLR/HSS and network elements: switches, FirewallsConfiguration and troubleshooting of Juniper Routers M120, M7i, Juniper EX4200, Juniper SRX 1400/ firewalls,Cisco Catalyst 3750X, Cisco router ASR 1001-X, Cisco switch 2960, Cisco FW 5585,Huawei L3 switch S9303,Mikrotik routers, Extremme switches, CCNA certificateFluent in English, Russian and Armenian(native)