PROFESSIONAL SUMMARY

• An astute professional with over 14 years of experience in IT Industry with technical expertise in the implementation, operations and support functions of mission-critical business solutions using IT as a tool.
• Over 7 years of experience and extensive knowledge in Linux Administration under heterogeneous environments consisting of Red Hat Linux, CentOS Linux, FreeBSD 8.0, Debian based Linux like Ubuntu, Mepis, Puppy Linux etc...
• Having experience in Cluster implementation with various application service and support with multi-platform environments
• Implemented SNORT for the IDS which handled to find packet level unwanted requests.
• Strong Experience with Shell scripting, Perl, Python and version control with SVN
• Experience with load balancer with Apache which integrated with Tomcat, JBOSS.
• Deployed Applications of the formats WAR, JAR, EAR on a Clustered environment
• Comprehensive understanding of administrative concepts pertaining to DNS, DHCP, Asterisk, UTM based Firewall, Ticketing System, PHP, SMTP, SNMP, JBOSS 4.0, Tomcat 6 and J2EE Services.
• Having expertise on Virtualization, Zimbra Postfix Server, FreeNAS, LTSP server, NagiOS monitoring tool
• Worked with 24/7 production support and ITIL practices like change management, incidence management, Problem management, Configuration Capacity management, Release management for various JBOSS environment Prod, Test, Stage, QA, UAT .
• Knowledge with Networking protocols and systems including DHCP, DNS, FTP/SFTP, SCP, ARP, IP, TCP, UDP, SNMP
• Installation other package from repository via Yum / Yumx, RPM package installation, install via CPAN packages, deb packages install via apt-get, install via synaptic also install package via compile and install.
• Broad experience with MySQL, PosgreSQL Database servers and integrating with JBOSS and Tomcat servers
• Adept in analyzing information system needs, evaluating end-user requirements, custom designing solutions, troubleshooting for complex HIS Healthcare Information System management.
• Having experience on AdServer Open Source system implemented with impression click.
• Having install also mass Mailer Application Open Source
• Implements automatic Backup System Rsync, SCP with password and without password via Crontab.
• Installation and configure as a client security in Samba permission, also configure Squid proxy for internet purpose accessibility with the facilities of Content filter Dans Guardian HAVP HTTP Anti-Virus Protocol .
• Configuration experience of SAN Storage to create volume disk and mapping with HBA/FC host.

SKILL SET

Technical

• Technology Expertise : Linux Admin, Shell Scripting, JAVA / JSP / Servlet
• Application Servers : JBOSS 3.2.7, JBOSS 4.0GA
• Servers Experience : DHCP Server, SAMBA, DNS Bind 9 , MySQL, PosgreSQL 8.0, NFS
• Web Servers : Tomcat 4.1/ 5.5, Apache Web Server 1.2 / 2.0
• Middleware : JBoss 4.0
• Framework Patterns : Struts, Hibernate
• IDE : Eclipse, Netbeans 6.8, Netbeans 7.3
• Databases : MySQL 5.4 MySQL 5.1, PosgreSQL 8.0
• Platforms : Redhat Linux, FreeBSD, Windows XP/2000/NT/95/98
• Version Control : SVN, CVS
• Scripting : Python, UNIX Shell, Perl, PHP
• J2EE Technologies : JSP, Servlet, JDBC

Functional

ADMINISTRATION

• Installation / Configuration of JBOSS Application server, Clusters, Node Managers etc
• Setting up and Maintaining Linux OS Server across an extensive selection of the feature set including Redhat cluster with DNS, DHCP, Apache
• Managing DNS, DHCP, SAMBA, User access also experience with JBOSS application deployments
• Expertise of NagiOS Open Source based network monitoring tool
• Manage LVM based disk space management for the server.
• Deployment experience with automated Shell Script for the leverage for juniors to take a backups.
• Created customized automated build Script, Unix Scripts and configured daily cron job scheduler tool which will send email to the group of the build result.
• Expertise with Performance Tuning of Linux, Database and JBOSS.
• Experience with Apache Web Server and Apache SSL Installation / Configuration and Maintenance
• Experience handling the Load / Stress testing of applications

SYSTEM ADMINISTRATION

• Experience working extensively with Linux, Windows systems
• Knowledge with administrating / Monitoring tools of Redhat Linux and Windows
• Managing space, performance of Redhat Linux.

TECHNICAL SUPPORT/ TROUBLESHOOTING

• Troubleshooting Linux Operating system issues issue, Application service issues, MySQL database issues and any network issues
• Conducting periodic reviews with the customer and analyze calls and their performance trends to take proactive measures to reduce knowledge-based calls.
• Suggesting improvements in the operations and processes to make the system foolproof with the increasing securities.

FACILITIES/ INFRASTRUCTURE MANAGEMENT

• Interacting with various vendors for sourcing products and solutions and for closure of calls which are supported by them.
• Interact with other teams to work on the issues related to other infrastructure components
• Supporting Development, integration, production and infrastructure deliverables
• Supervising the maintenance and upkeep of software and hardware assets of the organization.

Development/Administrative Programming

• Build, Developed and Implemented automated checklist for the L0 Juniors
• Build and Deployment tools achieving SLA in-case of unavailability of seniors
• Superior shell scripting Korn and Bourne Shells
• Knowledge with Perl scripting
• Experience with JSP / Servlet / Hibernate / Struts / MySQL Application Development
• Integrating experience of plugins with NagiOS monitoring tool

Confidential Medical Education Drugs Department is Part of HealthCare Domain, which provides healthcare support on public sector to the patients. Healthcare department is providing medical support as per the WHO World Health Organization .

Environment:

• Redhat Linux, Redhat Cluster, JBOSS, MySQL, NagiOS monitoring, Tomcat 5.5, UNIX scripts.

Highlights

• Provided Support 24X7 and responsible for all 142 Servers including cluster, Snort IDS , Zimbra Postfix server, mysql database
• App. server performance testing on HP blade server Linux.
• Created Shell Script to Orchestration of Components and server node to monitor detailed about caller
• Apache SSL Certification Installation / Set up
• Apache Web Server 2.0 cluster with mod jk load balancer
• Redhat Enterprise Linux, Java 1.4 / JDK1.5 / JDK1.6, JBOSS, MySQL environment Test, Stage and Production on Linux
• Installed, configured and administered
• Configured Bind9 for DNS server at various 11 project sites
• Install and Configure Java based PACS system Picture Achieve and Communication System on server.
• Created automated shell script to check out code, build and deploy with cron job
• Implement and Configured NagiOS monitoring with various plugins.
• Implement and Configured HP Data Protector 6.x / 7.0.
• Configuring SAN Storage with creation of VDISK and mapping LUN with appropriate HBA / FC host.
• Developed and implemented automated shell script for backup of database, application and data.
• Followed QMS standards as per ITIL with all change, issues, risk and other procedures.
• Implement RHEL cluster for apache web server during the roll-out at new sites.
• Monitoring regular load of application server and doing operational support
• Database backup validation from the restoring DB on staging environment.
• Helping to 10 junior resource in daily works and guide them for the process of ITIL standards as per QMS.
• Assign daily task to L1 and L0 Linux admin, L2 MySQL DBA and L2 Network Admin.
• Assisting to application administrator for the configuring of installing in SSL certificate of Apache.
• Monitor and Manage critical components, including the hardware, operating system, and the Application / Web layer

Attainments

• Suggested hardware sizing for testing, Staging and performance testing environments.
• Created installation, configuration and deployment document for Application server, Web Server.
• Developed Web based PHP tool for creation of Squid Proxy user for the helpdesk team.
• Developed JAVA based web tool for the Operational task for the managing services for juniors.
• Assist to network admin in the security improvement and designing of network architecture.
• Manage training SOP documents and arranging remote training to juniors.

Confidential

Sr. Linux Admin

Confidential Medical Education Drugs Department is Part of HealthCare Domain, which provides healthcare support on public sector to the patients. Healthcare department is providing medical support as per the WHO World Health Organization .

Environment:

• Redhat Linux, Redhat Cluster, JBOSS, MySQL, NagiOS monitoring, Tomcat 5.5, Unix scripts.

Highlights

• Created Shell Script to Orchestration of Components and server node to monitor detailed about caller
• Apache Web Server 2.0 cluster with mod jk load balancer
• Redhat Enterprise Linux, Java 1.4 / JDK1.5 / JDK1.6, JBOSS, MySQL environment Test, Stage and Production on Linux
• Installed, configured and administered
• App. server performance testing on HP blade server Linux.
• Provided Support 24X7 and responsible for all 69 Servers including cluster, MySQL database
• Configured Bind9 for DNS server at various 11 project sites
• Install and Configure Java based PACS system Picture Achieve and Communication System on server.
• Created automated shell script to check out code, build and deploy with cron job
• Implement and Configured NagiOS monitoring with various plugins.
• Implement and Configured HP Data Protector 6.x.
• Developed and implemented automated shell script for backup of database, application and data.
• Followed QMS standards as per ITIL with all change, issues, risk and other procedures.
• Implement RHEL cluster for apache web server during the roll-out at new sites.
• Monitoring regular load of application server and doing operational support
• Database backup validation from the restoring DB on staging environment.
• Helping to 10 junior resource in daily works and guide them for the process of ITIL standards as per QMS.
• Assign daily task to L1 and L0 Linux admin.
• Assisting to application administrator for the configuring of installing in SSL certificate of Apache.
• Monitor and Manage critical components, including the hardware, operating system, and the Application / Web layer

Attainments

• Suggested hardware sizing for testing, Staging and performance testing environments.
• Created installation, configuration and deployment document for Application server, Web Server.
• Manage training SOP documents and arranging remote training to juniors.
• Confidential company is providing integration, implementation of Ticketing Systems, Mail Server, Firewall, Linux, Security Network Solutions and many more.
• Also offered in Mobile business in bulk SMS, Android application, data crawling data scraping.

Environment

• Redhat Linux, JBOSS, MySQL, NagiOS monitoring, Tomcat 5.5, Unix scripts, Zimbra, Endian Firewall, Ticketing System, SugarCRM.

Highlights

• Handel escalation of L2's L1's
• To deliver high-level performance and customer satisfaction on application level
• Server installing, managing and patch updation
• Implantation managing Mail Servers with security
• Implemented PC based Open Source UTM typed of firewall with many UTM features.
• Implemented Open Source based Ticketing System with customization some features.
• Configured SugarCRM system with various kind of plugins.
• LDAP based setup implemented and configured on client level
• Own DNS server which needs to be configured with SPF, TXT record.
• Implemented OpenSource based storage box on PC based with FreeNAS.
• Monitoring regular load of application server and doing operational support
• Database backup validation from the restoring DB on staging environment.
• Manage and Configuration of multiple VHOST with Apache.
• Integrated internet usage tool with Squid Proxy.
• Implement Sendmail CATCH-ALL server for the eMail-To-SMS facility for the customer.
• Migration all users from MS-Windows to Ubuntu Linux.
• Configuring VSFTP / Pure-FTPd for anonymous and user permission base.
• Involved for design IT architecture for their network.
• Implemented Zimbra email server with multiple domin
• Deployed/ supported over 6 applications which entails formats of EAR, WAR and JAR and JBOSS / Tomcat.
• Created Shell script for automated build process

Training: Linux Scripting, DNS Server, Linux Performance Tuning