SUMMARY

• Over 8 years of experience specialized in System Administration working on Redhat Linux, DevOps, Cloud, Oracle Enterprise, Solaris, SUSE Linux, AIX, Cent OS, HP - UX 10.2x, 11.3x, VMWare, VMware vsphere ESX/ESXi and Windows environments.
• Involved in installation, configuration and administration of RHEL 3.x/4.x/5.x/6.x/7.1 Servers (HP - UX, Red Hat Linux, Solaris SUSE, and AIX) and CentOS.
• Experience in System Administration, System Builds, Server builds, Installs, Upgrades, Patches, Migration, Trouble shooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning.
• Excellent experience and knowledge with designing installing and implementing VMware ESX server, VMware virtual center, setting up V-Motion, HA, DRS.
• Installation and configuration of Oracle RAC 11g on Solaris, AIX and Red Hat cluster nodes.
• Proficient in shell scripting (Ksh/Csh/bash/Sed/Awk), PERL, Java Scripts for Oracle and Java Applications and XML.
• Hands on experience in building, maintaining production web infrastructures in DevOps, Confidential ’s Web Services (AWS) cloud platform.
• Expertise in DevOps, Release Engineering, Configuration Management, Cloud Infrastructure, Automation. It includes Confidential Web Services (AWS), Open Stack, Ansible, Puppet, Maven, Jenkins, Chef, SVN, GitHub, Weblogic, Tomcat, JBoss, and LINUX etc
• Experience in installing, configuring, supporting and troubleshooting Unix/Linux Networking services and protocols like NIS, NIS+, LDAP, DNS, NFS, DHCP, NAS, FTP, SSH and SAMBA.
• Well versed in configuring Volume Groups and Logical Volumes, extended logical volumes for the system growth needs using Logical Volume Manager (LVM).
• Expertise in Red Hat Satellite Server installation, Red Hat Linux Kick start, System Imager, SUSE Autoyast and Jumpstart in Solaris.
• Extensive working knowledge of mainframe Tools like TSO/ISPF, File AID, Xpeditor, Abend AID, Syncsort, NDM, SPUFI, QMF, SSO and FTP.
• Experience in administering, Installation, Configuration, Backup, Recovery, Maintenance, Support of Sun Solaris & Linux.
• Experience in Installing, upgrading and configuring Red Hat Linux using Kickstart Servers and Interactive Installation.
• Experience in Installing, upgrading and configuring SUN Solaris 2.6, 7, 8, 9 and 10 on Sun Servers using Jumpstart Servers, Flash Archives and Interactive Installation.
• Worked with Database administrators to tune kernel for Oracle installations.
• Experience with Veritas Volume Manager (VxVM), Veritas File System (VxFS), HP MC Service Guard, Veritas Net Backup, Veritas Clustering with SAN, NAS environment.
• Experience in installing, configuring and implementing the RAID technologies using various tools like LVM, VxVM and Solaris volume manager.
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Solaris and Red hat Linux.
• Installation and upgradation of Packages and Patches configuration mgmt, version control, service pack & reviewing connectivity issue regarding security problem.
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, send mail, ftp, remote access, security management and Security trouble shooting skills.
• Experience on Webservers such as Sun one web server 6.3, 6.5, Tomcat 3.x, 4.x, 5.x & Apache Server 1.x, 2.x and integrating them with WebLogic 10.x servers.
• Experience in administering VMware Infrastructure Client 3.5 and VSphere 4.0.
• Experience in Installation of Oracle and MYSQL.
• Experience in writing shell scripts to automate the administrative tasks and management using cron and at.
• Expertise in scripting for automation, and monitoring using Shell, PHP, Python & Perl scripts.
• Team player with good management, analytical, communication and interpersonal skills.
• Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
• Experience in Sun Solaris(Creation of Zones, Service Management Facilities, Virtualization, Container based)
• Experience working in SAN environment like EMC Symmetrix DMX3, DMX4 and Clariion CX3 series arrays.
• Creating Linux Virtual Machines using VMware Virtual Center and AIX LPARs on P550 and P570.
• Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.

TECHNICAL SKILLS

Operating Systems: RHEL 3/4/5/6, Solaris Release, IBM-AIX 5.X, HP-UX, Windows 98, Windows 2000 and NT.

Hardware: HP Proliant, Blade servers, Sun Servers E450, E3500, E4500, E5000, E6500, E10k, E15k, E25k, Sun Ultra's, V210, V280, V490, V880, V6800 SUN Ray (1g Ultra Thin Client) SUN Desktops (SPARC 10, 5), DMX3 and DMX4 Storage Arrays, F5, HP 9000, HP Net Server L series.

DevOps Tools: AWS, Puppet/MCollective, Chef, Nagios, Jenkins, Maven, Ant, MySQL, JBoss, Tomcat, Apache webserver, Git/GitHub and SVN repo.

Software: Veritas Volume Manager 3.5/4/5, Veritas File System, Veritas Cluster Server 3.5, Veritas NetBackup 6.0, MS-Office/MS-Project.

Web/ Application Server: Tomcat, Apache DB2, Confidential web Services, Oracle.

Network Protocols: DHCP, DIG, DNS, SNMP, SMTP, Ethernet, IOS, netstat, NFS, NIS, nslookup, RIP, OSPF, BGP, TCP/IP, and tcpdump.

Cluster Environment: Sun Cluster Servers 2.2, 3.1, 3.2 and VERITAS Cluster Servers 4.1.

Programming Languages: C, SQL, HTML, PHP, XML, Perl and Shell Programming, JSP, Python

PROFESSIONAL EXPERIENCE

Linux/DevOps/ AWS Administrator

Confidential, Rockville MD

Responsibilities:

• Administration of RHEL and AS 4, 5, 6 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Installation, configuration, administration of Solaris 9, 10 on SPARC based servers using Jumpstart.
• Creating, cloning Linux Virtual Machines, templates using VMware Vsphere 4.0 and migrating servers between ESX hosts.
• Installing Red Hat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Installation and deployment of a Red Hat Network Satellite Server 5.4.1.
• Installed and configured GNUPG to encrypt file and ftp to remote ftp server.
• Experience in AWS components - EC2, S3, Elastic IPs, EBS, Security Groups, Route 53, VPC, ElasticCache, and CloudFormation.
• Build new Virtual machine and physical server.
• Managing the VMWare ESX and ESXi server 5.5, 5.1, 4.0.0 and 3.5.0 based on requirement.
• Installing and Managing Virtual Center 5.5 Upgrading from VMWare ESX server from 3.5.0, 4.0.0, and 5.0 in environment.
• Implementation of backup solutions using Veritas NetBackup 4.5, 5 and 6.5 and HP Data Protector.
• Install and configure the hardware agents on the ESX servers for Hardware monitoring and alerts (SNMP & Open Manager).
• Configuration Management and source code repository management using tools like GIT, RCC, Subversion (SVN), RTC, agile tools like JIRA, scrum and CI tools like Jenkins, MS Build.
• Responsible for managing cloud computing tool AWS and the code in Git (version controlling).
• Designing and implementing fully automated server build management, monitoring and deployment by using Technologies like Chef and Ansible.
• Used Chef and puppet to manage Web Applications, Config Files, Data Base, Commands, Users mount Points and Packages.
• Migrated standalone applications from local to AWS cloud.
• Deploy artifacts on AWS with Jenkins AWS Code Deploy plugin.
• Used Jenkins for Continuous Integration and deployment into Tomcat Application Server.
• Docker can be integrated into various tools like AWS, Ansible, Chef, Puppet, Vagrant, Jenkins & VMware containers.
• Managing package install/upgrades/Patch using YUM and RPM.
• Creating policies, jobs in HP Opsware, deploying them on Linux, windows, Solaris servers.
• Worked with puppet /Chef for configuration management.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• Installed, Maintained and configured Red Hat Satellite system Management for Medica Hopkins. Providing them with patch, package, configuration management.
• Managed Red Hat Linux Satellite Server for the Meidca as a whole; the Satellite Server managed approximately 1,100 machines.
• Installing and configuring Apache and supporting them on Linux production servers.
• Worked on E-commerce based application products related to Internet marketing, credit card transactions, inventory management.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP.
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage on 2, 3, 4 node clusters.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Monitored server and application performance & tuning via various stat commands (vmstat, nfsstat, iostat etc) and tuned I/O, memory, etc.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Installation and configuration of VxVM 5.0 and creating disk groups, volumes, increasing volumes.
• Coordinated with the Storage, Network and Hardware teams on server provisions (HP Proliant DL385/585 G5, G6 servers, and HP BL 465C G5 blade centers).
• Installing, configuring WebLogic 10.3, Apache and integrating them.
• Experienced in Troubleshooting critical hardware and software issues and other day-to-day user trouble tickets.
• Adding servers to the domain and monitoring them using spectrum, sitescope, cacti.
• Developed automated processes that run daily to check disk usage and perform clean up of file systems on UNIX environments using shell scripting and CRON.
• Administered SMTP and DNS infrastructure (Sendmail 8.14 and BIND SPLIT DNS version 9.6.1)
• Excellent documentation skills and instrumental in creating runbooks, presentations and infrastructure documentation.

Environment: Red Hat Linux 5/6, KVM, AWS ( Confidential web Services), Open Stack, Ansible, Puppet, Chef, Jenkins, Docker, VMWare, ESX, Solaris, Sun Enterprise Servers, SUN FIRE 6800/E6500/E4500, Sun Sparc1000, IBM RS/6000, Disk Suite, POP, Veritas Volume Manager, LDAP, DNS, NIS, NIS +, SNMP, Shell scripting, SENDMAIL, Apache, Weblogic, Tomcat, Sun and Veritas Clusters.

Linux/ AWS Administrator

Confidential - Seattle, WA

Responsibilities:

• Installation and administration of RHEL 4.0/5.0/6.0 and Cent OS 5.
• Installation, configuration, administration of Solaris9, 10 on SPARC based servers using Jumpstart, worked on T. M series servers.
• Configured kickstart server and updating/applying patches to the servers using Redhat Satellite server.
• Remote system administration using tools like SSH, Telnet, and Rlogin.
• Build application and database servers using AWS EC2 and create AMIs as well as use RDS for Oracle DB.
• Migrated standalone applications from local to AWS cloud.
• Deploy artifacts on AWS with Jenkins AWS Code Deploy plugin.
• Used Jenkins for Continuous Integration and deployment into Tomcat Application Server.
• Docker can be integrated into various tools like AWS, Ansible, Chef, Puppet, Vagrant, Jenkins & VMware containers
• Worked on Docker and created virtual instances with Docker.
• Worked on AWS opswork, AWS Lambda, AWS code deploy, AWS cloudformation and cloud foundry.
• Install new / rebuild existing servers and configure hardware, peripherals, services, settings, directories, storage, etc. in accordance with standards and project/operational requirements.
• Install, configure and administer log analyzer tool CloudWatch.
• Worked with ANT, maven and JIRA.
• Worked on migrating Vmware to AWS using snowball and VM import/export.
• Experience with AWS bean stalk
• Experience working on AWS code deploy, lambda, VPC and CLI.
• Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades.
• Applied appropriate support packages/patches to maintain system integrity.
• Performed capacity analysis, monitored and controlled disk space usage on systems.
• Monitored system activities and fine tuned system parameters and configurations to optimize performance and ensure security of systems.
• Adding servers to domain and managing the groups and user in AD, installing and configuring send mail.
• Creating profiles manifests for new servers, and pushing them to servers using puppet.
• Responsible for maintenance of development tools and utilities and to maintain Python, shell, Perl automation scripts.
• Creating virtual machines using Xen and deploying OS, managing hardware.
• Creating, installing, WebLogic Application servers, deploying WAR, JAR files on them installed on both Linux, Solaris servers.
• Worked with project manager and auditing teams to implement PCI, SOX compliance.
• Jumpstarting Solaris 9, 10 on Sun servers, configuring servers. Configured/Maintained Zones, LDOMs, ZFS file system Sun Solaris 10 Servers.
• Installing, configuring Veritas NetBackup 6.5 on Linux, solaris servers, and creating backup polices.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager. File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Worked on resolving production issues and documenting Root Cause Analysis and updating the tickets using BMC Remedy.
• Fine tuning of Servers and configuring networks for optimum performance.
• Organized various meetings with teams as mentioned above for tracking their requirements as inputs to get this done and designed the plan/steps involved and took user approvals.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Installation, maintenance and administration of Oracle and Db2 Server on Sun Servers.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user, and group quota.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Created new groups and tested first in development, QA Boxes and then implemented the same in production Boxes.

Environment: Confidential web Services, Solaris 2.9 / 2.10, Red Hat Linux AS/EL 4.0, AIX 5.2, 5.3, Jenkins, Puppet, Sun E10k, E25K, E4500, Sun Fire V440/880, DMX 3 & DMX4, Site minder, SonicMQ 7.0, VxFS 4.1, VxVM 4.1, SVM.

Systems Administrator

Confidential, Kenilworth, NJ

Responsibilities:

• Installation and configuring of SUN Solaris and Linux servers.
• Involved in Building and configuring Solaris 8/9/10 using Jumpstart server and Red Hat Linux Servers using Kick Start server as required for the project.
• Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.
• Incident management for Unix Servers (Solaris, Linux).
• Installed and configured Solaris 10 servers with Zones and containers with Sun ZFS.
• Worked on version control using Github.
• Worked on automating builds using Jenkins.
• Primary responsibility includes building and supporting Solaris/ Redhat Linux 3,4 servers.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools.
• Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat, WebSphere and Weblogic application server.
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic etc.
• Extensive use of Veritas Volume Manager for Disk management, file system management on Sun Solaris environment.
• Created Zetabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.
• Installation and configuration Veritas NetBackup on Sun Severs and performing Backup using Veritas Net Backup.
• Extensive use of Korn shell, Bash for scripting.
• Expertise in Linux backup/restore with tar including disk partitioning and formatting.
• Involved in Planning, building and Administration of various High Availability clusters and heart beat checking on Sun Solaris using VCS in heterogeneous SAN environment.
• Regular disk management like adding / replacing hot swappable drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance.
• Worked with other IT teams, customers (users), and other managers in helping build and implement systems and standards.
• Involved in migration of projects from one flavor to another one.
• Involved in development, user acceptance, and performance testing, production & disaster recovery server.

Environment: Solaris 8/9/10, Red Hat Linux 4/5, BMC Tools, NAGIOS, Veritas NetBackup, Jenkins, Korn Shell, Bash Scripting, Veritas Volume Manager, web servers, LDAP directory, Active Directory, BEA Web logic servers, AN Switches, Apache, Tomcat WebSphere, Weblogic application server.

UNIX/Linux Administrator

Confidential - Merrimack, NH

Responsibilities:

• Installation and administration of RHEL 4.0/5.0 and SUSE 10.x.
• Configured kickstart server and updating/applying patches to the servers using Redhat Satellite server.
• Remote system administration using tools like SSH, Telnet, and Rlogin.
• Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades.
• Installation, configuration and administration of VMware, Solaris Zones, Containers and Ldoms.
• Automation of jobs through crontab and autosys.
• Installation of packages, patch management, volume management on Suse servers using YaST.
• Applied appropriate support packages/patches to maintain system integrity.
• Performed capacity analysis, monitored and controlled disk space usage on systems.
• Monitored system activities and fine tuned system parameters and configurations to optimize performance and ensure security of systems.
• Adding servers to domain and managing the groups and user in AD, installing and configuring send mail.
• Responsible for maintenance of development tools and utilities and to maintain shell, Perl automation Scripts.
• Expertise in VMware vSphere 3/4/5 version ESXi and vCenter operations Management.
• Worked with project manager and auditing teams to implement PCI compliance.
• Integrating Weblogic 10.x and Apache 2.x and deploying EAR, WAR files in Weblogic Application Servers.
• Installed, configured, cloned VMs on VMware 5, Vsphere 4.0, configured ESX hosts, adding data stores to ESX hosts, creating vswitches, templates, migrating VMs across ESX hosts.
• Designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Working on Volume management, Disk Management, software RAID solutions using VERITAS Volume manager & Solaris Volume Manager.
• File system Tuning and growing using VERITAS File System (VxFS), coordinated with SAN Team for storage allocation and Disk Dynamic Multi path.
• Fine tuning of Servers and configuring networks for optimum performance.
• Organized various meetings with teams as mentioned above for tracking their requirements as inputs to get this done and designed the plan/steps involved and took user approvals.
• Installing, configuring Nagios on Linux, Solaris clients.
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Installation, maintenance and administration of Oracle and Db2 Server on Sun Servers.
• Set up user and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user and group quota.
• As a member of the team, monitored the VERITAS Cluster Server 4.1 in SAN Environment.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Created new groups and tested first in development, QA Boxes and then implemented the same in production Boxes.

Environment: SUN Servers (6500, 4500, 420, Ultra 2 Servers), Solaris 2.6/2.7/8, Veritas NetBackup, Veritas Volume Manager, Samba, NFS, NIS, LVM, Linux, Shell Programming.

Systems Administrator

Confidential - Jacksonville, FL

Responsibilities:

• Responsible for operations in UNIX and Linux Server Environments.
• Managed and carried out system maintenance, hardware replacements and upgrades.
• Performed system patch and software analysis, installs and configuration.
• Installed and Configured RHEL 3/4/5, Solaris 10 on Intel and AMD hardware.
• Configured hands-free installation using Kickstart and PXE.
• Participated in upgrading and migrating 3.x to 4.x.
• Perform Linux and UNIX Kernel tuning for web, database and application servers.
• Writing shell scripts for Automated Back- ups and Cron Jobs using sh and bash.
• Managed user accounts and groups for corporate UNIX and Linux users.
• Managed and support corporate UNIX and Linux Development servers.
• Responsible for OS installs, system configuration and upgrades.
• Manage and perform change control and administration on application servers, web servers, LDAP servers and database servers in company's mission critical production, staging and development environments.
• Provide responsive off-hours support in a 24/7 environment and ensure maximum availability of all servers and applications.

Environment: Solaris 2.6, Linux 4.x, WebLogic Server sp3/sp5, Site Scope, Topaz, Apache, iPlanet.

Systems Administrator

Confidential

Responsibilities:

• Installation, Configuration, Upgradation and administration of Sun Solaris, Red Hat Linux.
• User account management and support.
• Jumpstart & Kick-start OS integration, DDNS, DHCP, SMTP, Samba, NFS, FTP, SSH, LDAP integration.
• Network traffic control, IPSec, Quos, VLAN, Proxy, Radius integration on Cisco Hardware via Red Hat Linux Software.
• Responsible for configuring and managing Squid server in Linux.
• Configuration and Administration of NIS environment.
• Managing file systems and disk management using Solstice Disk suite.
• Involved in Installing and configuring of NFS.
• Package and patch management on Sun servers.
• Kernel tuning, Writing Shell scripts for system maintenance and file management.
• Worked on Solaris volume manager to create file systems as per user and database requirements.
• Trouble shooting the system and end user issues.
• Responsible for configuring real time backup of web servers.
• Log file was managed for troubleshooting and probable errors.
• Responsible for reviewing all open tickets, resolve and close any existing tickets.
• Document solutions for any issues that have not been discovered previously.

Environment: Sun Solaris 2.6/7, SUN Ultra Enterprise 6000/450, SUN Ultra 10/5/2/1, Windows NT 4.0, RHEL 3.x.