Dmytro Leshchenko

E-mail adazc6@r.postjobfree.com

*****, ** ** * ******* WA 98026 Phone: 1-425-***-**-**

Objective: To obtain Network Engineer position

Education:

Master degree in Telecommunication

Associate in Networking Infrastructure Technology 2012

Cisco Network Academy

Windows Server Applications Infrastructure

CCNA and CCNP Certified

Skills summary:

More than 6 years of experience in designing, implementation and operations of enterprise wired and wireless networks.

Installing Cisco LAN, WAN, Wired, Wireless network infrastructure for Microsoft at Access and Distribution layers, throughout MSFT offices, labs, DC's worldwide. Also constantly upgrading outdated networks for MSFT

Extensive experience in implementation, configuring and troubleshooting on wide variety Cisco routers ASR-9K,

ASR-1K, 7200, 6500, 3845, 3750, 2900, 2800, Arista-7k, Nexus-3k, 5k & 7K and ASA firewalls.

Configuring and troubleshooting switches Cisco 4500,3850,3650,3750,2950, Arista 7050, 7516N, Nexus 3k,5k & 7K

Worked on Cisco 5520, 5508 & Aruba 7220,7210,7030,7010, wireless controllers with AP 135 & 225 series.

Hands on experience in manipulating data traffic using route maps, prefix-lists and distribution lists with various routing protocols during code upgrade on ASR9k, ASR1K, cisco routers

Migration from legacy routers (6500) to ASR’s 9K

Experience in deployment networks using OSPF, ISIS, iBGP & eBGP routing protocols.

Experience with VPC, STP, Ether Channel, VLAN, VTP, STP, MSTP, ACL, NAT, VPN protocols.

Experience in troubleshooting layer2 and layer 3 issues.

Experience with management of WLAN segments through NMS service like Airwave &Cisco prime.

Familiar with Wireless security (RSN) concepts like WEP, WPA-2, PSK,802.1x/EAP

Troubleshooting gateway redundancy protocols like HSRP, VRRP and GLBP

Hands on experience in implementation & troubleshooting of site to site, client to hub VPN and MPLSVPN

Contributed in challenging EOL refresh project for more than 150 sites for Microsoft IT network infra services.

Installation and configuration for AAA (RADIUS) authentication and TACACS/TACACS+.

Experience in the dial-up/OOB network deployment with Cisco and OpenGear-7232 models to access the network devices when sites are isolated.

Microsoft data center monitoring using Solar Wind software to maintain more than 1000 switches.

Interact with vendor companies and individual customers to the Implementation team to coordinate project work or clarify project design requirements.

Analyze business requirements to develop technical network solutions and their framework

Interact with Cisco team to open TAC case and work on RMA

Familiar with server fundamentals (Proxy, DNS, AD, DHCP, FTP etc.).

Experience with Man & Mice IP DB management software.

Familiar with Python and PowerShell scripting.

Perform critical analysis of networking outages and incidents, remediation and prevention of recurrence.

An effective communicator with strong team management, leadership, analytical and coordination abilities

Experience:

Microsoft Corp. (Redmond) Network Engineer NDS August 2016 - Present ( TCS contract)

oWorking with Microsoft Core Services engineer team (a.k.a Network Infrastructure Services) where I’m working on WAN, LAN & WLAN network design, deployments, decommission, migration, add and network changes of Microsoft IT infrastructure

oDeployment testing and upgrade of PTP and CMPLS WAN circuits. Work with ISP to resolved WAN issues.

oBuild site to site VPN tunnels and GRE tunnels for Microsoft Events.

oDeploy Aruba 7220,7210,7010,340 and CISCO 5520,5508 wireless controllers with wide variety of AP’s

oPost implementation support until services transitioned to Operations Teams.

oData center refreshment projects – Replace 6509 devices with ASR9006 router and Nexus.

oNetwork upgrade, decommission of site/devices and deployment of wired and wireless.

oDesigning the network infrastructure solutions and providing solution for projects.

oPreparing implementation plan (MOP) for the network design.

oWorked on Microsoft acquisition offices to migrate their network into Microsoft headquarter.

oWorking on LAN and WAN upgrade projects which include Bandwidth and Hardware upgrade.

oDeploying wireless switches and Access Points in different offices locations in MS and developed AP layout.

oTroubleshooting of BGP, MPLS, IS-IS peering issues and work with ISPs. Handle issues related to Link down/flapping/Errors. Change management and code upgrade support.

oDesign and Deployment of Cisco devices 4500x, 4506E, 3560, 3650, 3850XS switches and 2801, 2901, 6500, ASR1001, ASR1001x, ASR9001 and ASR9006, 3945, 3845 ISR routers. Nexus 3000 series switches.

oConfigure and troubleshoot of IP Sec VPN tunnels.

oDevelop BOM (Bill of Material), Network Design and MOP (Method of Procedure) configuration for deployment.

oCoordinate with CAB team and get the Change approval after they evaluate risk percentage.

oCoordinate with Microsoft FTE team to resolve issues. Discuss about ticket health status. Helped in Automation to reduce false alerts. Handling of network incidents with SLA.

Microsoft Corp. (Redmond) Network Engineer Jan 2014 - March 2016 ( Inspur contract)

oDeployment network solutions for Microsoft enterprise data centers on Access, Distribution, Core levels.

oConfiguration network equipment such as Cisco, Nexus, Arista, and Dell.

oI worked with various stakeholders to determine requirements and best practices in implementation and drove projects to completion.

oDeployment / configuration L2/3 devices using span and leaf architecture.

oAdept in troubleshooting L2 and L3 issues on daily basis including switches and servers with end customers.

oPerformed IOS and NX-OS upgrades on various models of IP Internetworking including layer 2/3 switches.

oI was responsible for Microsoft data center monitoring using Solar Wind's software to maintain routers and switches health.

oPerformed fault switch recovery and worked with Cisco Secure Access Control Server (ACS) using TACACS to authenticate switches.

oParticipate in F5 secure appliance configuration VIPRION 2400 Chassis.

Imprezzio Inc. NOC Technician Mar 2013 – Jan 2014

oProactively monitor, maintain and fix servers, operating systems, network configurations, software applications, and hardware.

oProactively monitor security logs/alerts and respond as required by SLA and/or procedures to protect the confidentiality, integrity and availability of company and customer assets and data.

oTroubleshoot and properly document network, server, workstation, software and security issues.

oParticipate in Windows Server 2012 deployment.

oMonitor and maintain network stability by Microsoft System Center 2012.

oRoutine patching, maintains, reporting.

oDeployed Nagios server based on Cent OS for purpose of network monitoring.

oPerform Ticket escalation within SLA. Open, track and resolve internal/external tickets.

oProvide on call telephone technical support.

Cascadia College Technical Support Representative Dec 2011 – Mar 2013

oProvide computer help desk support via telephone communications with end-users.

oPerformed diagnostics and troubleshooting of system issues, document help desk tickets/resolutions, and maintained equipment inventory lists.

oUsed Altiris Deployment Solution for Windows 7 station deployment.

Daeta Networks Network Technician June – August 2011 -2012

oDeployed Windows 2008 R2 servers with different roles.

oDeployed data backup solution on Windows 2008 servers by using Acronis Snap Deploy 4 software.

oPerformed regular system backups and recovery procedures.

oDeployed NFS design based on Open Filer Linux software.

oDeployed IP PBX based on Free SWITCH and Fusion PBX products.

oDesign and deployed SMB Desktop Virtualization based on L300 NComputing thin client.

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