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Опыт работы

Senior network engineer

с 03.2013 по наст. время (12 лет 5 месяцев)
ISP "TENET" (http://tenet.ua), Одеса (Телекомунікації, зв'язок)

•*Перед ознайомленням з резюме прошу дивитися розділ "Броннювання" у кінці резюме.*

•*Before reading the summary, please review the 'Reservation' section at the bottom of the page.*

Responsobility:
• Designing ISP network
• Implementing IPv6 network infrastructure.
• Configuring cisco catalyst L3 switches: 6500,4500,3560.
• Cisco routers 7200,7600. Configuring juniper L3 switches : juniper EX3300,EX4550, Cisco 3560x, 3550.
• Routers juniper MX80-T, L2 switches cisco 2950,2960, dlink 3120,3100,3526.
• Configuration and design core level network and border level.
• Configuring MPLS, BGP, OSPF routing protocols, maintain multicast routing based on PIM-SM, PBR routing, GRE tunnels, stp protocols, PVST.
• Maintain and configuration VOIP servers based on Kamalio and Asterisk servers

I'm proud of our accomplishments:
• Introducing WI-FI roaming in wireless, introduce coova chilli.
• Introduce MPLS/VPLS network
• Designing network for a data center.
• Implement juniper MX-80 and cisco ASR-9000 network equipment at core and BNG/BRASS level.
• Implement IPoE, configure PPPoE at ASR and MX routers.
• Implement GPON
• Introduce VOIP solutions at core level as at customer like FreePBX.
• Introduce services developed in python and perl for device configuration

Network engineer

с 03.2012 по 03.2013 (1 год)
Enterprise SOUZ (http://soyuz-corp.ru), Одеса (Енергетика)

• Management and administration of network infrastructure in 30 remote and two head offices in Ukraine and Russia, using the technology of tunnel IPsec + MGRE in the DMVPN cloud, and using QOS for traffic priority.
• Configuring of Routing protocol based on OSPF with area segmentation, PBR-based route maps, static routes, configuring routing balancing between ISPs ,configuring ip SLA. Configuring first hop redundancy protocols VRRP, HSRP, GLBP. User VPN configuration, configuring VPDN with Radius authorization.
• Configuration routers, Cisco 1711,1760,1911,1941,2801,3725,3745 with using modules: VPN, content engine cache modules, DSP, WIC E1 PRI modules.
• Configuration switches L2, L3: cisco catalyst 2950, ?2960, 3550,3560x, 6506,6509. D-link des 3028, des 3200, des 3526, des 3550, Planet switches, 3com, Intel. Using protocols rapid PVST +, RSTP, MSTP, traffic control, Ether Channel, LACP, DHCP snooping etc.
• Configuring and administration of wireless WI-FI networks based on ubiquiti unifi AP and unifi controller using EAP authentication integrated with NAP radius server .
• Administration of the firewall / proxy servers: Microsoft ISA / TMG. Server NAP, DHCP, RRAS-based OC Windows 2008 R2
• Configuring Cisco IP voice gateways using services: ALG,Dial peers, SIP trunks,SIP-ua, isdn PRI for cisco routers based on modules G703/E1.
• Monitor server and network infrastructure based on OS FreeBSD, using the tools: Zabbix 2.0, Cacti, Rsyslog with an entry in the DB Mysql and reports in «Log analyzer», traffic accounting by the collector Netflow analyzer.
Perl/Python script development , collecting statistics, configuration and network analysis.
• Implementation of Help Desc service based on OTRS system with integration it witht AD domain.
• Work in a team environment as a leading specialist, consulting and resolving tasks with other IT engineers, programmers and system administrators.

Network engineer ,System administrator

с 02.2010 по 03.2012 (2 года 1 месяц)
ISP Triolan (http://triolan.com), Київ (Телекомунікації, зв'язок)

• Management and administration of 3200+ access layer switches: dlink DES 3028,3526,3200, cisco 2950,2960, 120+ distribution layer switches: dlink DGS-3100, DGS-3140, 15+ level 3 core switches: Extreme Network-summit x450, x480, x650, Extreme Network Black Diamond-8810, configuring border routers, in the cities Odessa, Kiev, Harkiv
• Administration involves the initial design of the network: the initial configuration, technical supervision, further configuration, support the current version of Firmware, installation of additional modules, providing work in a format UP 24/7. Monitoring availability, workload analysis CPU, ports, LACP groups, etc.
• Script development in Perl/PHP for network analysis, configuration changes, conduct additional monitoring and reporting.
• OSPF routing administration devided in areas, static route configuration, route summarizing.
• BGP administration, maintaining filtering policy, prepend routes,communities. Maintenance and organization of BGP connections.
•VLAN management , designing networks, writing policies, ACL rules , filtering routes based on route map, prefix and distribution lists.
• Traffic managment colletct using netflow/Sflow protocol, collecting data in MYSQL database.
• Support services for monitoring availability WhatsUP.
• Monitoring equipment utilization via SNMP v2 systems using Cacti, Mrtg, Zabbix, using triggers and SNMP traps. Notification system.
• Testing IPv6, NAT64, design innovative projects, testing various vendor equipment.
• Server administration based on Centos /FreeBSD OS ,services apache2, php5, Mysql5, ftpd, tftp, bind, pmacct, speedtest-mini, Open vpn, mpd5, freeradius etc.
• PHP/Perl/Python development: development of service for employees, managers, NOC support. Generaration comprehensive reports .
• Administration CATV equipment: CableVista, Harmonic.
• Technikal consultation , providing seminars and certifications.
• Fusion splicing of optical fibers. Diagnosing breaks/fiber cut. Configuring optical amplifiers. Assembling CWDM. Working with DWDM.

Образование

ОНONAS IT University Связи

Networking and Information delivery, Odessa
Высшее, с 2004 по 2009 (5 лет)

Networking and Information delivery, Graduated bachelors and specialist

Дополнительное образование и сертификаты

cisco CCNA, "ONAS IT University"(Odessa,Ukraine)

2010

cisco CCNP "ONAS IT University"(Odessa, Ukraine)

2012

Linux administration IT STEP(Odessa,Ukraine)

2010

C++ programming "IT hillel college"(Odessa, Ukraine)

2013

"IT hillel college" Java core

2013, 6 months

Знания и навыки

• Windows
• Linux
• Java
• CentOS
• C++
• Driving licence cat. B
• IP (Internet Protocol)
• Налаштування Firewall
• DHCP
• VMware
• Cisco
• Адміністрування Ubuntu Server
• Debian
• OSPF
• BGP
• STP
• RSTP
• Ethernet
• PPTP
• PPPoE
• Brass
• Bng
• Mpls
• Juniper
• Dmvpn
• TCP/IP
• Адміністрування IP-телефонії
• IPsec
• FreePBX
• VICIdial
• SIP
• Ipv6
• Asterisk
• Підтримка VoIP-мережі
• VLAN
• Налаштування DNS
• Налаштування VPN
• Active Directory
• Адміністрування Windows Server
• RADIUS
• LACP
• PAGP
• VMware vSphere
• VMware ESXi
• SNMP
• GRE
• Ansible
• Perl
• Python
• VRRP

Знание языков

• Английский — продвинутый
• Русский — свободно
• Украинский — свободно

Дополнительная информация

Looking for remote work
Броннювання:
Для державних, та не аутсорс та аутстаф усатнов, розглядаю позицію рівня провідного фахівеця з 100%ю можливістю бронювання та гарантій утримання у штаті як незамінимого співробітника (без можливості вилучення з штату за умов отримання повістки) . Працую тільки вітдаленно або з офісу у м. Одеса.

Reservation:
For government institutions and non-outsourcing/non-outstaff companies, I am considering a position at the level of Lead Specialist with a 100% guarantee of reservation and retention in the staff as an indispensable employee (without the possibility of being removed from the staff in case of receiving a military summons). I work exclusively remotely or from an office located in Odesa.

Skills:
Network experience
• Work with cisco IOS, IOS XR, Exteme networks EXOS , juniper Junos, dlink cli.
• Skilled in OSI model , TCP / IP stack
• Protocols: DNS, HTTP, HTTPS, FTP, SFTP, TFTP, mail (SMTP, POP3, IMAP), SNMP, ICMP, IP v4, IPv 6, NDP (ipv6), ARP, Proxy-ARP, RARP, TELNET, SSH , TCP UDP; ppp + (PAP, CHAP), PPPoE, RADIUS , Ethernet 802.1Q (VLAN port based , mac based), 802.1x
• L2 VLAN (802.1q), QinQ, Port channel, LACP, cisco VTP, PRIVATE VLAN, d-link traffic-segmentation
• Configuring QoS, NBAR, 802.1p, loop detect, mac bind. Cisco Port security. DHCP relay, DHCP snooping.
• STP protocols (rapid STP, pvst, pvst +, MSTP) root guard, bpdu filtering etc
• Configuring static routes, PBR route map, cisco express forwarding
• Manage and design dynamic Routing: RIP v1, RIP v2, EIGRP. OSPF v2 (area, LSA), BGP, redistribution.
• BGP v4-IBGP, EBGP,BFD, administration multihome AS , filtering, prepend, next hop,bgp community,route reflectors etc. MPLS networks.
• ACL, Reflexive acl, distribution list, prefix list, route map
• Configuring first hop Redundant gateway HSRP, VRRP, GBLP
• Managing Sflow / netflow protocols
• Configuring DHCP, ARP, proxy-arp, arp inspection protocols
• Configuring tunnels in site to site VPN networks, vpdn, GRE, encryption IPSEC. DMVPN, Nhrp
• Multicast MVR, PIM PIM-SM, PIM-DM, igmp, igmp snooping v1, v2, v3
• Port Mirroring, vlan. Remote mirroring protocol
• Basic skills cisco TCL EEM
• Experience with switches:
• L2s: Cisco catalyst 2950, 2960, dlink DES 3028, DES 3526, DES-3200, DGS 3100, DGS 3450..
• L3s: Extreme networks Summitx450, Summit x650, Black Diamond 8810
• L3s:vCisco Catalyst 3550,3560 X, 6506, 6509. Juniper switches EX3300,EX4550.
• Cisco enterprise routers: 1700 series, 1800, 1900, 2800, 3700,7200,7600,
• Cisco ISP: Cisco ASR routers
• Juniper ISP: MX5-T, MX80
• Network Firewalls: Cisco ASA, Microsoft TMG.

•Operating System Linux (Centos, Debian, Ubuntu)
•Controlling access rules ,nat and redirection with: ip tables, ebtables, pf, ipfw.
•Controlling user access with chroot, using freebsd jail.
•Rebuilding the kernel adding functions and optimizing the unix core . Editing •Conf. Files: rc.conf, rc.d, rc.local, fstab etc.
•Configuring network : bond , bridge, VLANs, alias interfaces, inetd server, static routing, quagga, rp-PPPoE, pppd.
• Log analysis, log rotation, traffic analysis using tcpdump .
• Monitoring the network using packet monitoring Zabbix, Cacti, mrtg . Collection packages with collector flowtools, PMACCT collecting sflow / netflow
• Configuring LAMP
• Nginx
• FTPd, proFTPd
• DHCPd, bind, squid etc
• MPD5 server / client (PPPoE, PPTP + / radius / mysql DB users), openVPN
FreeRadius (web interfaces: Dialup admin, Dalo Radius)

Programming skills
• Java coding. Common libs and frameworks.
• REST applications development
• OOP
• C++ (Basic level)
• Perl libs : telnet, snmp DBI, CGI, NET, sockets
• Python coding
• DB mysql. SQL familiar
• NO-SQL DB

• VOIP experience
• Working with SIP protocol, PRI connections. Configuring Cisco Voice gateways, Cisco CUCM, CME .
• Implement VOIP based on Aterisk server. Configuring VOIP GSM gateways, E1 PRI/FXO gateways.
•Experiance with vicidial
•Implemeting asterisk with FreePBX and sugar crm. .

• Fiber optics experience
• Skills in CATV networks.
• Low level network design based fiber connectors, patch cords,(PC, UPC, APC), optical splitters, optical amplifiers, optical modules sfp, wdm sfp, sfp +, cwdm sfp, XFPv etc.
• DWDM skills.CWDM. Setting up the optical amplifiers. Setting: FOB, crosses, couplings,
• Welding fiber.
• Ability to use OTDR. Measurements OLT. Finding the fiber cut.