Greetings, I am Krishna

Senior IT Infrastructure Consultant with over 13 Years of extensive experience in Planning, designing, deploying troubleshooting and administrating Multiple Products & Technologies like Microsoft OCS, Lync, Skype for Business, Exchange Server, Active Directory, System center products, Virtualization with Hyper-v & VMware vSphere, Data center Designing, Cisco Routing & Switching, Identity Management, PKI etc.. I too do project management and successfully handled several projects throughout my career.

Certifications obtained ( click on thumbnails to view certificate )

My Education, Skills & Experience


Chennai University ( Sri Sankara Arts & Science College - Kanchipuram )

B.Sc Computer Science - 2000-2003 - 70.87%

SRKMHr.Sec School ,Chengam

Standard XII - 1999-2000 - 77.08%

SRKMHr.Sec School ,Chengam

Standard X - 1997-1998 - 77.64%


Communication / Voice

Microsoft OCS( 2007 R2) Microsoft Lync ( 2010, 2013 ) Cisco UCM / UCME Audio Codes Polycom CX & VVX Phones Sonus Gateway

Directory Services

Microsoft Active Directory - 2000 Microsoft Active Directory - 2003 Microsoft Active Directory - 2008 Microsoft Active Directory - 2012 LDAP


Microsoft Exchange Server - 5.5 Microsoft Exchange Server - 2000 Microsoft Exchange Server - 2003 Microsoft Exchange Server - 2007 Microsoft Exchange Server - 2010 Microsoft Exchange Server - 2013 Office 365 Zimbra


Hyper-V VMware VSphere VDI Vmware View Citrix Xen Server


PKI Cryptography Firewall VPN AAA

Scripting / Automation



Cisco Routing / Switching Backup System Center Tools SCOM 2012 R2 Solarwinds NPM/NTA Savision Live Maps Storage Data Center Management Project Management

Work Experience

MDS Computers, AbuDhabi - UAE

Senior Consultant ( Apr'14 - Till Date )

Applied Materials Inc (Contractor) , Bangalore

Senior Engineer - Identity Management ( Feb'12 - Feb'14 )

Sonata Software Limited , Bangalore

Senior Systems Analyst ( Jun'10-Feb'12)

Cognizant Technology Solutions, Bangalore

Senior System Executive - IT IS ( Nov'08 - Feb'10 )

e4e Business India Solutions Private Limited, Bangalore

System Administrator ( Jun'07-Nov'08)

Hard Quest , Bangalore

System Administrator ( Jun'05-May'07)

Adithya Engineering, Visakhapatnam

System Administrator ( Jun'03-Dec'04)

Projects handled

MDS Computers, AbuDhabi

Client: ADT - AbuDhabi terminals - AbuDhabi

SCOM 2012 R2 Planning, Designing, Deployment

Configure Alerts, Rules, Reports, Dashboards, Agent Deployment etc

Create Live Maps to monitor the IT Infrastructure

Install and Configure Solarwinds NPM/NTA to monitor the network devices

Client: Yahsat - AbuDhabi

Microsoft Lync 2013 & Cisco CUCM SIP Trunk Creation

Configure Dial Plans & Voice policies for Gateway Migration

Client: MoPA - AbuDhabi

Lync Server 2013 Deployment and administration

Polycom CX & VVX Phones Deployment for all users at MoPA

Sonus Voice Gateway Administration

ASM Technologies Limited, Bangalore

Client: Applied Materials Inc, Bangalore

Active Directory Management

Active Directory 2003 - 2008 R2 migration

PKI management ( vendor : Entrust )

Sonata Software Limited, Bangalore

Client: CSS Corp Pvt Ltd – Chennai

Active Directory migration 2003-2008 R2

Consolidation of multiple domains to single domain in new forest

Migration of Lotus domino to Exchange Server 2010 using Quest Migration tool

Lync Server 2010 implementation

Client: Pangea3 Legal Database Systems Pvt Ltd –Mumbai

Lync server 2010 Implementation

Lync server 2010 Enterprise edition with high availability

Archiving & Monitoring as per compliance requirement

External Access, Federation, Microsoft Exchange OWA integration

Client: Cognizant Technology Solutions-Chennai

OCS 2007 to Lync Server 2010 Migration

Production pilot program to enable Lync for 500+ concurrent users

Client: IGATE Global Solutions

Active directory forest integration between iGate & Patni

Exchange Server 2007 Integration

GAL Sync, Free/busy info replication between

Client: Sonata IMSG Team

OCS 2007 R2 to Lync Server 2010 Migration

Exchange 2010 deployment with High availability (DAG)

Participated in TAP (Technical Adaption program) with Microsoft for Lync Server 2010 migration

Cognizant Technology Solutions, Bangalore

Client: Pepsico-BIS-US (Offshore support)

Level 3 support for VMware vSphere 3.5/4.0, Wintel technologies

Level 1 support for Citrix presentation server 4.5/XenApp 5

Involved in physical to virtual (P2V) consolidation

Client: Simon & Schuster Publications-US (Offshore Support)

Troubleshoot and manage Active Directory and Exchange 2003/2007

L3 Support, Migrated Exchange server from 2003 to 2007 SP1

Patch deployment using SCCM 2007

e4e Business India Solutions Private Limited, Bangalore

Client:e4e Internal IT Team

Provided LEVEL- 2 support for Windows and Exchange 2003

Managing and troubleshooting the DNS, DHCP, WINS and IIS servers

Desktop support

Client: DSP Technologies

Active Directory 2003 Setup

DNS, DHCP servers configuration

Data center setup

WAN connectivity, Servers, Racks, Routers, Switches purchase, setup and configuration

Migrate the users from NXP domain to DSPG domain along with user profiles

VLAN management

Regular Desktop support

Hard Quest, Bangalore

Windows Server 2003 installation & Administration

DNS/DHCP, Exchange 2003 server management

Provide technical training on MCSE 2003 and CCNA Routing & Switching

Adithya Engineering, Visakhapatnam

Client: Larsen&Toubro Limited-ECC Division

Install client operating systems, Server operating systems and applications

Provided desktop support

Monitor the Backup jobs of server and clients

Update clients and servers with anti-virus patches and Management of Assets

Services Offered

Communication Solution

Capacity Planning for Microsoft Lync Server

Designing Unified Communication solution using Microsoft Lync Server.

Deployment of Unified Communication Solution using Microsoft Lync Server.

Migration of OCS 2007, OCS 2007R2 Lync Server 2010 to Microsoft Lync Server 2013.

Integration of Lync Server with Telephony system (PBX/IP-PBX).

Enterprise Voice Setup and Configuration.

Proof of Concept (POC) setup as per the requirement.

Cisco Unified Call manager and unified call manager express design, setup and configuration

Directory Services Solution

Capacity Planning for Microsoft Active Directory

Designing the active directory solution with Windows Server

Deployment of active directory solution with Windows Server

Active directory migration from previous versions

Proof of Concept (POC) setup as per the requirement

Messaging Solution

Capacity Planning for messaging solution with Microsoft Exchange Server

Designing the messaging Solution using Microsoft Exchange Server

Deployment of messaging Solution using Microsoft Exchange Server

Migration of Non Microsoft messaging solutions to Microsoft Exchange Server 2013

Proof of Concept (POC) setup as per the requirement

Windows Server Solution

Capacity Planning for various Microsoft Windows Server Solutions

Setup and configuration of AD Certificate Services (PKI Infrastructure)

Federation Services, Lightweight Directory Services, Right Management Services

Internet Information Services Setup and Configuration

Setup and Configuration of DNS, DHCP, WINS services

Proof of Concept (POC) setup for various Windows Server features as per the requirement

Technical Training offered

Exchange Server 2013 Administration and Core Solutions.

Lync Server 2013 Administration and Core Solutions.

Windows Server 2012 Administration and advanced design.

Cisco Routing & Switching, Security & Voice Training

Contact Me