Jun 2011 – Apr 2024 · 12 yrs 10 mos · Bangalore

• Planning and Designing Virtualised environment for different Projects which includes hardware, storage, networking planning and designing.
• Designing, configuration of VMware vSphere with Kubernetes (WCP and TKG) Managing namespaces, clusters, pods and helping application teams to deploy and manage containers.
• Designing, Implementation of VMware Managed Cloud Services (VMC), On-Prem Infrastructure, migration across on-prem and cloud.
• Design DR Infrastructure using VMware SRM (VR and SAN based solutions)
• Designing and administering VMware NSX-v and NSX-t based environments and using micro-segmentation for east-west traffic.
• Designing and managing VMware vSAN environment with encryption using native key providers across multiple clusters.
• Technical briefings to help external customers designing their virtualized datacenters in green and brown fields. Performance analysis of customer environment and fixing the issues related to performance.
• vRealize Operations to troubleshoot infra related issues for on-prem and cloud setups which includes vSAN and SAN based storage.
• Planning and co-ordinating with different team to order Dell, HPE and Cisco UCS hardware based on requirements.
• Automating configuration of new/re-purposed hardware using iDRAC, OME, HPE iLO and UCSM.
• Writing Python/Power-CLI scripts for reports and automation of tasks and using vSphere REST API to interact with vSphere layer.
• Designed and implemented ejabberd IM environment for VMware employees in year 2012.
• Administering Proofpoint antispam/antivirus appliance for the Organization.
• VCAP 6.x, VCP 5.x, 6.x, RHCE, MCSE and ITIL v3 Certified.

Aug 2009 – Jun 2011 · 1 yr 10 mos · Bangalore

• Supporting world’s #1 most visited networking web site, Cisco, innovating core Internet technologies.
• Providing SME support from offshore for unified architecture for Cisco’s Internet and Intranet Application Layer in multiple data centers.
• Elevated awareness of web standards and formulated and working as a member of internal Apache groups that overseas installation, configuration and management of Apache web server setup.
• Researched, evaluated, and optimized Apache configurations for internal Intranet where access time improved over 30%.
• Administered the web server farm for content deployment.
• Drafted and documented the policies related to Web Systems thus simplifying complexity and helping team understand and follow the process in a better way.
• Mentoring team on technical grounds and providing technical KT to resources.
• Providing SME support on Munge project which is responsible for fetching logs across all the webservers available within jurisdiction of ATS group.
• Handling P1/P2 bridge calls individually to help teams to resolve web layer issues.
• Using Remedy v6 and v7 for Incident and Problem Management.

May 2009 – Aug 2009 · 3 mos · Gurgaon, India

• Setup of Master-Master Mysql Replication having multiple mysql instances at different geographic sites.
• Maatkit to monitor mysql replication and checksum the table for consistency.
• Setting up applications and components and maintenance of 3Tera Grid Cloud Computing.
• Installation and Setup of Tomcat 6.0, JBoss.
• Monitoring of services, custom applications, tests and nodes through Zabbix and Nagios. Setting up different tests in nagios through nrpe. Zabbix agents configuration and test setups.

Apr 2007 – Apr 2009 · 2 yrs · Noida Area, India

• Worked on Redhat (LVS with Piranha Frontend) and Ultra Monkey Clusters, configured it for Apache, Exim( SMTP), POP and Spamassassin . Implemented Ultra Monkey with Direct Routing as Load Balancing Solution for Outgoing SMTP. Configuration of Ldirectrod and Heart Beat. Configured Mysql Clusters into NDB Cluster Environment.
• Administering of Apache Web Server. Implementation of SSL and Certificates in Apache. Export / Import and Private Keys, CSR for Certificate while Migration for Sites to different Servers. Migration of Apache from 1.3 to 2.x. Compilation from Source configuration with modules i.e mod_perl, mod_ssl, mod_jk2, mod_cband, mod_throttle, mod_security. Apache configurations with different Applications like PHP 4/5. Tomcat 5.5/6. Administered Apache with different Control Panels like Cpanel, Plesk, Ensim.
• Managed Java Hosting into Tomcat with mod_jk and Apache as frontend.
• Administering BIND server and MyDNS. Implementing Forward, Reverse lookup zones Primary, Slave Servers. Implementing ACL Dynamic Updates in BIND. Bind DHCP Integration.
• Administering Exim MTA. Implementation of Relays and Anti Spammers. Virtual Domains, Aliases, SMTP Routing. Implementation of Anti Virus Solution like ClamAV. Implementation of FetchMail. Integrated DKIM & Domain-Keys with exim.
• Administering Antispam applications like Spamassasin and Dspam. Configured Spamassasin with DKIM, SPF, DCC, Razor2, SURBL and greylisting. Installed and Administering DCC Server for Mailing. Implemented DSPAM as Antispam Solutions and configured it as 99% accurate for Spam. Configured DSPAM with shared managed group for each domain.
• Administering, Tuning and Optimization of Mysql 4/5 and Postgresql. Backup/ Restoration of databases, Mysql Replication, Master-Slave Servers. Worked over Mysql Clusters into NDB Cluster Environment.
• Administered Openldap Server as Directory lookup into Exim Mailing and Address Books.

Nov 2006 – Apr 2007 · 5 mos · Pune Area, India

• Installation, Configuration & Administration of Avaya S8700 Multi-Connect.
• S8700 IP-Connect Configuration using Avaya S8700 Media Gateways.
• MCC1/SCC1/G700 Media gateways using Avaya 3500 Servers (RHEL4 as OS) with Avaya proprietary MSS integrated with Active Directory, Exchange Server 2003, Lotus Domino 7 & Sun Mail Store.
• Avaya Products integrates with MTA and Avaya IPSI/PNs which switches voice calls.

Jan 2004 – Nov 2006 · 2 yrs 10 mos · Chandigarh Area, India

• Configuration and management of Apache Web Server, MySQL Databases, Samba Configuration, Compiling modules (extensions) with php and managing the remote hosted Linux Server for same services.
• Managing Win 2k/2003-IIS based Web Server with more than 50 websites hosted. It involved setting up of new web applications/ websites and managing permissions, access, components for the existing websites on the IIS Server.
• Managing and administrating MS SQL Server 2000 with 60 to 70 databases. My job involved creation of new databases/users, daily backups of existing databases, managing of user permissions, performance tuning.
• Setup, configuration and Management of MDaemon Mailing Server for 200+ users. It involved configuring and setting up email accounts and managing group mailing lists. It connects to a remote mail server hosted in US for external mails. My job involved managing of that remote server.
• Administration for Servers with Control Panels like CPanel, Plesk, Ensim. Understanding of integration for these panels with Services like Sendmail (Ensim), Qmail (Plesk) and Exim (Cpanel) and Apache, Mysql.
• Managing and administrating Windows based network for 200+ nodes and 10 local Servers (Windows & Linux) and 5 Web Servers (IIS & Apache) which are hosted at US. Local Lan connects to the internet through a router at local end. My responsibilities involved management and troubleshoot of the internet router.
• Administration of Sonicwall Firewall & Linux Based Firewall (Configured Myself). It involved providing rule based internet access, port management and network intrusion detection and troubleshooting.
• Configured Qmail (Integrated with Ezmlm, Autoresponder, Vpopmail, Vqadmin, Maildrop, Qmailadmin, IMAP, squirrelmail ,CLAM-Antivirus, Spamassassin, Qmail-Scanner, Qmailanalog & Qtrap)
• Samba authentication to Windows 2003 Directory using Kerberos and Winbind.