1. Mr. Alexei (Alex) Plescan
alexey.pleshkan@gmail.com
Professional Summary
16 years of overall experience, including 14 years of experience in systems and networks engineering
Extensive Cisco experience (Cisco Certified CCNA, CCDA, CCNP, CCDP, CCNP Voice, and CCIE #29272)
Strong technical background includes Network Operation and Design (14+ years)
Multiple vendor certifications in a variety of IT disciplines
Strong analytical and multi-tasking skills
Technical Skills
Hardware:
o Cisco routers (CRS 1/GSR12000/ASR1000/7200/3700/3800/3900/2800/2900/1800/1900 series)
o Cisco switches (Nexus 7K/ Nexus 5K/6500/4900/4500/3700/3500/2900 series)
o Cisco ASA 5500 (5520/5540/5550/5585x) Series
o Cisco FWSM Catalyst 6500 Firewall Services Module
o Cisco Aironet Wireless equipment
o HP ProCurve switches (8200/5400/3500/2600 series)
o IXIA and Agilent router testers
Network Protocols and Technologies:
o Layer 2 - Ethernet (Fast, Gigabit, 10/40 Gigabit Ethernet), Frame Relay, ISDN, PPP
o Layer 3/4 – IPv6, IP/TCP
o Routing protocols - RIP, EIGRP, OSPF, BGP
o Other technologies - VoIP, VPN, NAT, VLAN’s (802.1q, ISL), QoS, IPSec, SNMP, VTP, STP, NTP,
RADIUS, TACACS+, and Multicast (PIM SM, PIM DM, and IGMP)
Software and tools:
o Cisco Works
o CA Spectrum OneClick
o CA Service Desk ticketing system
o HP Service Manager ticketing system
o Microsoft Visio
o Cisco TAC, Cisco Dynamic Configuration Tool, Cisco Feature navigator
o Wireshark network protocol analyzer
Operating Systems:
o Extensive experience in Cisco IOS
Other Skills:
o LAN/WAN implementation, operation and design (12+ years)
o Expert Knowledge of Network Cabling Solutions (Certified Molex Premise Networks Professional)
Professional Experience
April 2012 to Present:WesternUnion(www.westernunion.com),Englewood,CO
Position: Senior Network Engineer
As a part of Network Engineeringteam, lead projects to integrate existingnetwork infrastructure of companies
acquired byWestern Union, standardize it, andeliminate issuesrelatedto legacydesigns
Developedassociated designdocumentation including Bills of Materials, Networkdiagrams, Implementation
plans, andcorresponding support documentation
Conductedregular meetings with BusinessUnits involvedinthe project to assess necessaryrequirements for
network infrastructure being designedandto developimplementation schedule witha minimum or no impact to
revenue generatingapplications
2. Configurednetworkequipment involved inthe projects (Routers, Switches, and ASA securityappliances),
conducted actual deployment andimplementationstages ofthe project
Coordinated engineers involvedinthe project to make sure workis being done intime and withminimum
possible impact to the business
Environment & Tools utilized: HP Service Manager, HPNetwork Node Manager, Wire Shark Network Analyzer,
OPNET AppResponse Xpert, IPAM, CiscoRouters (ASR1002/7206VXR/3900/2800 series), Cisco Switches(Nexus 7000,
Catalyst 6500/4948/4500/3750x series), Cisco ASA SecurityAppliances(5520, 5550, 5585x series), andCatalyst 6500
FWSM Firewall ServicesModule
April 2009 to March 2012: WEST Corporation(www.west.com),OmahaNE
Position: Senior Network Engineer
Provideddayto dayoperational support for the West Corporation network(Large international network with
MPLS backbone, several major Data Centers inUS, multiple call centers andsales officeslocatedinUS and
Internationally, more than 5000 managed networkdevices, more than35000 employees)
Served as a highest point of Incident escalationfor problems related to networkoperation(Tier III)
Conductedweeklytrainingsessions for Tier II staff (general networking technologies as well as design solutions
specific to West network)
Participatedinthe number of projects targeted to eliminate legacydesignsolutions andbring network hardware,
software andconfigurationto latest network standards adopted byWest Network Standard committee,
eliminating incidents and dramaticallyincreasing networkreliability
Participatedinon-call rotation to provide networksupport after hours
Was responsible for providing networkconfiguration, maintenance andcapacityplanning for the network
infrastructure, ensuringthe abilityto meet business needs.
Worked withbusiness unit staffto define network requirements, including consulting withendusers to define the
scope andobjectives ofproposednetwork configurations;maintainedregular contact with business unit staff to
ensure network is meetingbusiness needs;designedand implementedmodifications if needs were not met.
Maintainedproper documentationof networkconfigurations andmodifications, along withoverall network
architecture;assistedinthe development of disaster recoveryplans to maintain reliable networkoperating
systems
Environment & Tools used: CA Spectrum OneClick, CA Service Desk, InfiniStreamsniffers, CiscoRouters
(ASR1004/7206VXR/3800/3700/2800/2600 series), CiscoSwitches (Catalyst
6500/4948/4500/3750/3650/3550/3550XL/2360/2350 series), CiscoPIXfirewalls (515E, 525 se ries), CiscoASA
SecurityAppliances (5520, 5540, 5550 series), andCatalyst 6500 FWSM Firewall Services Module
September2008 to March 2009: Sapphire Technologies (Client-Hewlett-Packard(ProCurvedivision), RosevilleCA)
Position: Network Engineer
Handlingcustomer problemscenarios, creatingprototype network solutions to test andresolve issues found by
customers
Feature test plans preparationfor HPProcurve network equipment (L2 andL3 switches 2600, 3500, 5400, and
8200 series)
Cisco IPICS solution based on ProCurve L3 switches Project
o Created prototype of customer networkbasedon ProCurve L3 switches, serving as a multicast (PIMSM)
backbone for CiscoIPICS solution.
o Installed and configuredall Cisco components ofthe prototype – Cisco IPICS(IPInteroperabilityand
Communications System) server, RMS (Router MediaService), LMR (LandMobile Radio), CiscoCall Manager
Express
o Conductedassessment of customer’s topology, executedtest planto discover potential problems relatedto
operation of ProCurve equipment inMulticast environment
Environment & Tools used: HP ProCurve 3500 series L3 switches, Cisco IPICSserver, Cisco2821 (RMS), Cisco2811
(LMR), Cisco 3825 (Cisco Call Manager Express4.1), andWireshark networkprotocol analyzer.
3. PIM SM feature testing Project
o Worked as a feature testingnetwork engineer to execute Protocol Independent Multicast - Sparse Mode (PIM
SM) test plan, designedto verifyfunctionalityof PIMSMfeature in newbranch of management software for
Procurve L3 switches(Titan4)
o Configuredall networking equipment involvedintesting(Procurve switches, Ciscorouters, IXIA router testers),
built complex network topologies basedon particular test cases, investigatedissues related to thisfeature, that
have been seenbyour end-clients earlier to make sure that fixesimplemented in software code of Titan4 are
workingproperly
Environment & Tools used: HPProCurve 3500/5400/8200 seriesL3 switches, IXIA OptixiaXM12 router tester, and
Wireshark network protocol analyzer.
March 2008 to August 2008: Global Consulting(Client - CiscoSystemsInc.SanJose,CA)
Position: Senior Device Test Engineer
Test plandevelopment coveringdifferent hardware modulesand IOS-XR software featuresof CiscoCRS-1 router
Test planexecution, including configurationof routers, switches, router testers andother devices involved in
testing
G-Ether migration project
o Designedtest planto verifyfunctionalityandcompatibilityof 1GE, 10GE and OC768 DWDMinterfaces with
new versionof IOSXR software. Test plan covered four different types ofhardware – 1GE SPA (Service Port
Adapter) Ver., 1GE and10GE SPAVer.2, 10GE PLIM, OC768 DWDMPLIM(WDMPOS) and includedtests
createdto verifyfunctionalityof equipment onlayers 1-3 of OSI reference model, including:Autonegotiation,
MTU, configurable MAC, MACaccounting, Carrier Delay, CDP, VLAN and Bundle interfaces, L2 and L3 VPN,
HSRP/VRRP, BGPand OSPFrouting protocolsover VLAN andBundle interfaces, IS-IS routingprotocol.
o Executed test planas a member of the g-ether migrationtestingteam(three network engineers intotal)
Environment & Tools used: Cisco CRS-1 Carrier RoutingSystem, GSR 12000 routers, IOSXR, GILA 1GE SPA (SPAVer.1),
FUGU 1GE and 10GE SPA (SPAVer.2), PLIM10GE, OC768 DWDMPLIM, Cisco 3750 Switches, Ixia 1600 router tester,
Agilent N2Xrouter tester.
July 2002 to February 2008: S&T SystemsIntegrator, Chisinau,Republicof Moldova(www.snt.md)
Position: Network Engineer (PSG Consultant)
Network equipment configuration
Client support
Network project designandimplementation
Public VoIP Telephony Solution, based on debit cards project
Customer: Transneogroup Company
o Configuredall Cisco equipment involvedin project (AS5350 universalgateways, H323 gatekeeper (based on
Cisco 2651 router), 2950 Ethernet Switches, ciscoATA 186 analog telephone adaptors)
o Providedtechnical support to customer’s engineeringteam, includingtrainings, targetingbasic operations
with Cisco equipment – dial-peers, H323 endpoints, TCL scripting
Environment & Tools used: Windows 2000/XP, IPSoft billing solution, Cisco AS5350, Cisco2651 router, Cisco2950
switches, CiscoATA 186, HPNetserver lp1000r, Zyxel Prestige 791 bridges, TCP/IP, H323, NTP.
WAN solution for commercial bank project
Customer: MoldovaAgroindbank S.A. (42 locations, more than1000 employees)
o Developednetwork designsolution, including network architecture and equipment configuration
o Created designdocumentation (network diagrams, capacityplanning, equipment specifications)
o Worked through all ofthe stages of project implementation, providing assistance to team ofnetwork
engineers (installationandconfiguration ofCiscorouters)
Environment & Tools used: Windows 2000/XP, CiscoWorks 2000 (RWAN, VMS, LMS), Ciscorouters (1760V, 3660,
1721 series), EIGRP, TCP/IP, andVPN.
