SUMMARY

• Around 7 years of Strong Experience in Unix,Linux,VMware and Windows Administration withexpertise in the installation, support, configuration and maintenance ofLinux (Redhat/SuSE/CentOS/Ubuntu), Unix (Solaris/HP - UX, AIX),Windows 2012/2008 and VMware ESXi servers under heterogeneous environments.
• Strong in troubleshooting, monitoring, training and 24/7 production support experience in mission critical environments.
• Worked with systems support team to define, architect and maintain highly available production systems
• Extensive experience in System administration under heterogeneous environment ofLinux (Redhat&SuSE, CentOS),UNIX(Sun Solaris, HP-UX, AIX),VMware and Windows servers.
• Expertise in Installation, Configuration and file system management and RAID volume management through, Solaris Volume Manager (Solaris) and Logical volume Manager (HP-UX, Linux).
• Experiences in Server build using Jumpstart and Kickstart Process.
• Good understanding of error logging subsystem and Performance Monitoring tools like vmstat, iostat, netstat.
• Knowledge of AWS such as Ec3, S3,IAM, Route53
• Installed, maintained & performed troubleshoot on RHEL, CENTOS, FEDORAand configuring them for different purposes such as Databases and Applications.
• Experience on backup and recovery software like Veritas Net backup 5.1 and 7.5 onLinux environment.
• Extensive experience in UNIX performance monitoring and kernel tuning and Load balancing to ensure stable performance.
• Proficiency in VMWare. Installation and monitoring Virtual environments with ESX 4.x servers, ESX 5.x and Virtual Center 4.X and Virtual Appliance 5.X
• Extensive experience in Shell and Perl Scripting, including Ruby.
• Experience in installing and configuring VERITASCluster Server (VCS), RedhatCluster Server, LDOMs and monitoring High Availability Environment.
• Worked on DevOps Environment. Used tools like Jenkins, Github, Ansible.
• Worked on configuring puppet master servers and managing nodes through Puppet master server.
• Strong experience on Webservers Tomcat & Apache andWebLogic/WebSphereApp servers
• Working experience of Cloud foundry, OpenStack, Git, ELK stack (Elastic search, Logstash, Kibana).
• Installing Netback up and oracle agent on Red Hat, SUSE Linux servers and troubleshooting
• Provided production support of Apache and JBoss including installation, configuration, management and troubleshooting.
• Supported servers in cloud environment including Amazon EC2.
• RDBMS installation and support including Oracle, SQL Server, MySQL.
• Disk and File system management through Logical Volume Manager (LVM) on LINUX and Solaris Volume Manager (SVM) on Solaris.
• Worked on Live Upgrade, migrating from UFS root file system to ZFS file root system.
• Advance level of experience in researching OS Issues, applying Patches and opening the Vendor Tickets.
• Day to day administration of the Development environment and Test environment systems.
• Experience of working in Data centers with 24X7 Production and On-Call Environments.
• Helped to establish standards, policies and procedures for all aspects of Unix Server environment (e.g., administration, configuration, documentation, etc.)
• Knowledge of Routers and Switches, Subnetting, VLAN, TCP/IP, VPN, OSI model, Firewall (checkpoint), VOIP, and Sarbanes Oxley compliance (SOX).
• Technical professional with management skills, excellent business understanding and strong communication skills.

TECHNICAL SKILLS

Operating Systems: RHEL 4, 5, 6.x, 7, SuSE 10,11,12, Solaris 8, 9, 10, 11, AIX 5, 6, 7, HP-UX 11.x

Hardware: HP/IBM/Sun/Dell Blade Servers, IBM Power 5, Power6, Power7, Power7,+SunT2000,T4000, M5000, M8000, CISCO UCS

Storages: EMC Symmetric, Clariion, IBM DS3200, DS4000

Virtualization Technologies: IBM PowerVM, IBM WPAR, Solaris LDOMS, Zones, VMware ESXi.

High Availability: Veritas Cluster Server, Redhat Cluster Server, HP-Service Guard

Programming Languages: Shell, Perl, PythonScripting

Web and App. Servers: Apache, Tomcat, Weblogic, JBoss. AWS

Methodology/ Tools: DevOps, Jenkins, GitHub, Puppet, Chef, Ansible.

Networking: TCP/IP,NFS, DNS, NIS

PROFESSIONAL EXPERIENCE

Confidential, MI

Sr. LINUX/UNIX System Administrator

Responsibilities:

• Installation, Configuration, Administration and support of various OS likeRed-HatLinux, SuSE Linux,Solaris, AIXand Windows operating system.
• Installation of Patches and Packages. Configuring NFS, NIS, NIS+, DNS, and disk space management on Linux/Unix servers
• Experience in writing Shell scripts.Perl for process automation of databases, applications, backup and scheduling.
• Worked on datacenter Migration Project. Migrated Linux/Unix Servers from one data center to other data center with minimal downtime.
• Extensive working experience in process scheduling, disk and file system I/O, kernel internals, TCP/IP networking.
• Implemented SUDO, SSH and other security tools and security compliance
• Installation and configuration of Veritas Volume Manager, Veritas File System.
• Extensive use of volume management tool using Logical Volume Manager to create disk groups.
• Installation, Configuration and Administration of High Availability using Redhat cluster and Veritas Cluster Servers for failover and redundancy purpose.
• Worked on server automation tools Chef. Created Recipes and cookbooks.
• Scheduling of automatic repetitive Jobs, and Shell Scripts with Crontab.
• Implemented in Red Hat Cluster Suite and Global File system, Red Hat Network Satellite Server.
• Experience in Load Balance workload evenly across two or more servers, network links, CPUs, hard drives, or other resources, in order to get optimal resource utilization, maximize throughput, minimize response time, and avoid overload.
• Configured Puppet master server and client for server automation. Created modules and manifests.
• Worked on fast paced DevOps environment.
• Experience in Developing KORN, BASH, PERL, Python shell scripts to automate cron jobs and system maintenance. Scheduled cron jobs for job automation
• Configured new service group and resources for new application in Veritas Cluster Servers.
• Worked on server consolidation and migration from one data center to another data centers.
• Good exposure on Storage Area Networks (SAN), of EMC Clariion, EMC Symmetrix.
• Extensively worked in data and database migration from older machine to latest configurations.
• Configured IPMP, NIC Bonding and Storage Multipathing.
• Troubleshooting various problems, logging call with vendors.
• Monitor performance and resource utilization of key systems and provide ongoing trend analysis for forecasting future resource requirements.
• Worked on IPMP/NIC Bonding on Solaris/Linux servers.
• Installed and configured VMware ESXi server created VMs and deployed Linux and Windows OS on VMware based VMs.
• Working experience of Cloud foundry, OpenStack, Git, ELK stack (Elastic search, Logstash, Kibana).
• Participation in change control activities, Involved in Memory sizing of different applications.
• Complete periodic checks of production and development systems, CPU utilization, memory profiles, disk utilization, network connectivity, system log files, etc.
• Verify successful completion of daily incremental and database backups, following developed procedures

Environment: Cisco Unified Computing Services(UCS), Red Hat Linux RHEL 5.x/6.x, SuSE 11/10, Solaris 10, ESXi 5.x, HP/DELL Blade Servers, Solaris 10/9/8, HP-UX ( 11.23, 11.31), AIX 6.x/7.x, Logical Volume Manager, Veritas Volume Manager, Veritas/Redhat Cluster Server, EMC/NetApp Storage,, ORACLE, DB2/UDB

Confidential, CA

Sr. Linux / UNIX Administrator

Responsibilities:

• Installation, Maintenance, Administration and troubleshooting of Linux, Sun Solaris, AIX, HP-UX systems.
• Experience inDevOpson Linux and Windows platforms and worked within the Cloud for integration processes with AWS.
• Experience in Configuration, implementation and administration of clustered servers on Linux environment by using pacemaker.
• Experience in Red Hat EnterpriseLinuxOperating System Installation, Building Servers and administration of RHEL 4.x/5.x/6.x & SUSE 10.x. which includes testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Performed automated installations of Operating System using Jumpstart for Solaris and kickstart for Linux.
• As a Solaris administrator primary responsibility includes building of new servers which includes rack mounting, installation of OS, configuring of various OS-native and third party tools, securing of OS, installing & configuring, job scheduling.
• Configure Web Logic, WebSphere servers and APACHE and TOMCAT Server with JAVA Application tools on Red Hat and HP UNIX servers environment.
• Created RPM packages using RPMBUILD, verifying the new build packages and distributing the package.
• Worked on migrating of Linux VM's between Data Stores and/or VBlock environments.
• Building of Oracle RAC R12(Oracle Real Application Clusters) environment.
• Configuring, Maintaining of NAS and SAN storage.
• Explored new tools with Amazon AWS.
• Worked on DevOps environment with Puppet/chef, Jenkins, Github, JIRA, CA/CI.
• Set up user and group login ID's, printing parameters, networkconfiguration, password, resolving permissions issues, user and group quota.
• Working for migrations Linux physical to virtual, virtual to virtual.
• Migrating data between storage arrays and internal and external disk.
• Provided Post-Migration support for multiple Remedy Applications which involved deploying Emergency & Production Releases, monitoring services, fixing performance issues, installing security patches.
• Trouble shooting the issues with virtual and physical networks pertaining to OS and hypervisor.
• Managing servers in cluster after migrations through shell script.
• Created RPM packages using RPMBUILD, verifying the new build packages and distributing the package.
• Involved in resolving Split-brain issues with DRBD, ensuring data security and enabling data replication.
• Experience in Volume management, Disk Management, software RAID solutions using VERITAS Volume manager 3.x/4.x/5.x File system Tuning and growing using VERITAS File System (vxfs).
• Implementation of RAID 0/1/5 for creation of logical volumes using VERITAS Volume Manager in SAN Storage Area Environment.
• Scheduling of automatic repetitive Jobs, and Shell Scripts with Crontab.
• Installation and configuration of SLES Linux servers with configuring xen hypervisor tools on SLES VHOSTS (Virtual Hosts).
• Configuring Linux servers with ISCSI HA, and creating the iscsi targets on the storage gateways, available for the Xen hosts for domU storage.
• Configuring DRBD on the Xen Hosts and enabling replication to on-site as well as for cross sites.
• Windows 2000/2003 and 2008 Server Active Directory Administration.
• Administering Microsoft Windows 2008, Windows 2003, Windows 2000 and NT Server Environments, Active Directory, DNS, DHCP.
• Hands on experience in F5 LTM load balancing.
• Designing and creating a resilient SCM Infrastructure from scratch - Subversion and Hudson integrated with Active Directory/LDAP 2 & 3, and orchestrating SCCM and Satellite deployments and host builds to serve every part of the Bank.
• Design, Implementation of Active Directory infrastructure and Network fundamentals, protocols (such as TCP/IP, DHCP, DNS), Group Policy and Profile Management.
• Experience with troubleshooting DNS, DHCP, IIS and Active directory.

Environment: RHEL4/5/6/7, SuSE 10/11, Solaris 8,9,10, HP-UX 11.x, AIX, Sun M4K,M5K,M8k, T4xxx/ T5xxx servers, CISCO UCS Blade, HP/Dell Blade Servers

Confidential

LINUX/UNIX Administrator

Responsibilities:

• Infrastructure planning, development and management, System Management (Hardware /Software), Vendor Management, Cost Benefit, Budgeting and (Lifecycle of implementation).
• Installation, configuration and management of Linux (Redhat, SuSE, CentOS, Ubantu), Unix (Solaris, AIX, HP-UX) and Windows servers.
• Work on development, staging, production and testing environment on several City government projects (311, ACRIS, NYCHA, Portal, DATASHARE, GEO, and GIS etc).
• Installation and configuration Solaris 10 with creation of zones, svcadm-service Mgmt facility.
• Remotely as well as onsite 24x7 manage several servers for performance, uptime, capacity, response time, file system, I/O, disk space, kernel, memory, health check, and also analyze incident/defect. Along with participated in emergency bridge call.
• Server virtualization Solaris 10: soft partitioning, Zone/ZFS creation and mounting.
• Follow up change management procedure, solve Netcool generated tickets and help desk tickets (Remedy tickets).
• Primarily working on Solaris 8/9/10 servers, SunMC, Netcool and Remedy interface and solving any issue appear in the execution of the process.
• Installation and configuration of VERITAS Volume Manager, LVM, VERITAS File System and VERITAS Cluster Server.
• Work extensively on HA/Disk Volume Management with VERITAS Volume Manager/ SVM and VCS.
• Worked on data replication: suspend/break/re-enable.
• Worked on File Sharing Protocol, Data security, File management, Connect:Direct, SFTP and FTP.
• Creating user, groups, file system as request coming from different Government projects.
• Working on web server (iPlanet) redirect and SunMC installation as well as configuration.
• Working to upgrade SunMC for all DoITT Solaris UNIX OPS projects.
• Worked on to understand all UNIX components of ACRIS and migrated from Bearing Point environment to DOITT (Department Of Information and Telecommunication Technology) environment.
• Analyzed hardware and software implemented by ACRIS projects (Solaris, Linux, SAN, and VERITAS Net-Backup) technical documentation extensively to migrate ACRIS project from third party (Bearing Point) to DoITT environment.
• Worked on ACRIS UNIX OPS Run Book and published on DOITT UNIX shared Services.
• Worked on script based file monitoring/NAGIOS and implemented Expect Script for user creation/modification as well as in data push in different server from centralized server.
• Worked on migration of script based file system monitoring /NAGIOS to SunMC.
• Extensively using Remedy to create Change Request (CR) and worked on CMR and followed proper process to validate and close CR.
• Worked on cron jobs for root, Pandora and Oracle accounts.
• Trouble shoots day to day issues on UNIX OPS system and user problems.
• Planning and implementing Disaster Recovery (DR) sites from the scratch.
• Worked on DR (Fail over/Fail back) from primary Data Center to secondary Data Center (DR site).
• Supported 24/7 highly available critical system.
• Involved in on-call pager rotation for production support.
• Interacted with vendors for Hardware and software support.
• Troubleshooting Sun issues, logging call with vendors. Created service Request (SR) with SUN.
• Interacting with various teams such Oracle database, critical infrastructure, UNIX architecture, Wintel, IT security, Network/application support outside vendor (Bearing Point).
• Troubleshooting hardware issue which interface with SunMC, logging call with vendors.
• Demonstrated skill in supporting end users and proven ability to plan, organize and work as a member of a technical project team, both in small groups as well as large government groups.

Environment: Linux, Solaris, HP-UX, AIX, SUN Enterprise- E 5000/5500/6500 , SUNFIRE 3800/4800/6800 , E10K/15K, TSeries, MSeries Servers, HP-9000, rx8640, rp7420, rp8420, N-Class, L-Class, D-Class, K-Class, IBM e-Server Regatta P690, P570, RS6000, IBM/HP/DELL Blade Servers, CISCO UCS, Solaris 11/10/9/8, HP-UX (11.00, 11.11, 11.23, 11.31), IBM AIX (5.1, 5.3), Red Hat Linux (RHEL 4/5/6), SuSE Linux (10/11)