TAC Engineer

• Aug 2018 - Present

Network Architect, Mobile Packet Core R&D

• Mar 2015 - Aug 2018

Responsibilities: LAN, WAN IP design, implementation & troubleshooting, PS Core solution design, testing and implementing on such devices as Cisco ASR5k/ASR5700/ASR9k, Huawei USN9810/UGW9811/UPCC/S9306/S9312/NE-40, cross-functional collaboration on network nodes integration and new product launch, tender documents preparation - RfP, SoC Achievments: As a Technical Project Manager provided and successfully implemented the network architecture for projects: RAN sharing with Megafon, migrating PS Core to the new MPLS network, migrating Core network to N+1 redundancy scheme, virtualized PS Core implementation, expansions of: IP backbone,DPI,SGSN,GGSN,SGW,PGW,Firewall As a Solution Manager provided and successfully implemented the network technical solution for such projects as: Toolbar — toolbar in a web page — access to self-service directly from browser, DTMst3 — unlimited access to particular services, chosen by the subscriber, DTMst4 — service-based access restriction — option for B2B clients to limit their employees access to particular content (e.g. social networks), Button — Vimpelcom proprietary messanger/VoIP client/self-service, Tethering — restriction/redirection of outbound traffic initiated by a tethered subscriber — providing access to the Internet via tethering for fee, Soft Redirect — browser HTTP redirection to notify the subscriber that his account balance/traffic package expires soon, UPCON — network congestion management, Group bandwidth limitation Show less

Leading Engineer, Mobile Packet Core R&D

• Apr 2014 - Dec 2014

Responsibilities: PS network solutions development, O&M of PS Core network: Cisco ASR5000, Huawei USN (SGSN-MME), Huawei UGW (GGSN, S-GW, P-GW), Huawei EPSN (PCEF with DPI functionality) including troubleshooting and regular/emergency support, cooperation with Planning, Billing, IT, Marketing, Operation, Product departments in various operational issues, signaling tracing and monitoring using Cisco/Huawei proprietary solutions and Wireshark, acceptance testing and commissioning of new PS Core nodes and software releases, PCC interfaces installing, O&M – Ga, Gy, Gx, tender documents preparation – RFI, RFP, SoCAchievements: tender process organization of selecting network traffic generator for Test Lab, moving Gy, Ga and Gx interfaces from GGSN / P-GW to standalone PCEF Show less

Senior Specialist, Subscriber Equipment Testing and Introduction Service

• Nov 2012 - Apr 2014

Responsibilities: Subscriber equipment compatibility testing, validation of subscriber equipment (mobility/session management in GSM / UMTS / LTE networks, CS/PS handover implementation, CS-fallback etc.), network interfaces monitoring (A, Gb, IuCS, IuPS, S1, SGs, S6a) using Anritsu Masterclaw and Polystar OSIX, test reports making, checking subscriber equipment compatibility with various vendors SIM modules, etc.Achievements: participating in preparing launch of branded products

Network administrator

• Jun 2011 - Nov 2011

Responsibilities: Administration of office network (about 20 PC's) and chain stores network (10 stores) including CCTV, trading equipment, customer tracking services etc., installation, O&M of office telephony system Panasonic KX-TDA100, installation, O&M of networking L2/L3 equipment (D-Link, Trendnet), administration of FTP, DHCP, DNS servers, administration of 1C 8.0 system Achievements: new office network launch, new store launch Responsibilities: Administration of office network (about 20 PC's) and chain stores network (10 stores) including CCTV, trading equipment, customer tracking services etc., installation, O&M of office telephony system Panasonic KX-TDA100, installation, O&M of networking L2/L3 equipment (D-Link, Trendnet), administration of FTP, DHCP, DNS servers, administration of 1C 8.0 system Achievements: new office network launch, new store launch

Engineer

• Aug 2009 - May 2010

Responsibilities: Assembling and installation of electronic equipment modules Responsibilities: Assembling and installation of electronic equipment modules