SUMMARY:

• Over 7+ years of experience in technical support and maintenance of UNIX Systems.
• Strong OS and server troubleshooting, OS Patch management, and build Infrastructure skills.
• Experience in installing, configuring, managing, maintaining and developing AIX Systems, Linux (RedHat), Windows 2003 Server, HP UNIX and Solaris.
• Experience with Puppet automation tool.
• Experience in Administration of RHEL 3, 4, 5 & 6 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues
• Experience with Docker, Chef, Nagios
• Expertise in creating scripts with Korn, Perl which would help in automation and simplification of jobs.
• Installation, administration and configuration of VIO Server and VIO client LPAR’S through HMC.
• Red Hat Enterprise Linux /Cent OS / Fedora 4 Server / Ubuntu 10.04 LTS - Installation, and configuration and maintenance
• Linux Shell Scripting.
• Mail server - Installation configuration and maintenance of mail server - Sendmail,
• Web server - Apache, Nginx, PHP Mysql
• Squid Proxy server - Installation and configuration
• Linux Firewall / Security / Unified Threat Management System - IP tables configuration, Cyberoam UTM configuration and Administration
• Database server -Installation and maintenance administration of MySql
• Storage management - LVM, RAID
• Server configuration - DNS, DHCP
• Linux Containers - Control Panel / Plesk Panel
• Experience in Administration of AIX 4.3, 5.1, 5.2, 5.3, 6.1, 7.1
• Installation and configuration of NIM master server and clients
• Migration of AIX OS from 4.3.3 to 5.1, 5.1, 5.2 to 5.3 and 5.3 to 6.1 on pSeries servers.
• Migration of AIX Systems from old p4, p5 to p6 hardware.
• Experience working on Power5, Power6 and Power7 P740, P750, P560, P595, P570, P575.
• Experience in working with Live Partition Mobility to perform migration from one frame to another.
• Experience in MICRO-PARTITIONING on P series servers.
• Experience in PowerHA, AIX versions 6 and 7, PowerVM (VIO), HACMP, Scripting and knowledge of Red Hat Linux.
• Configuration of HACMP 4.5, 5.1, 5.2, 5.3 as well as performing failover and failback of HACMP Clusters on a regular basis as per the application requirement.
• Migration of HACMP from version 4.5 to 5.1.
• Development Server: Apache Tomcat server - Installation, configuration and management
• Virtualization Sun / Oracle - Virtual box on Linux hosts
• SAS - SAS Administration / Base SAS programming, Macro and SQL programming, Statistical Analysis
• Good knowledge of regression and regression diagnostics, and modeling.
• Conversant with Basel and Risk Modeling.
• R language Data Modeling, Analysis, Visualization & Reporting -Engineering computation C/Fortran/Spreadsheets /Excel /MS Access
• Excel /Geekoboard Dashboards
• Excel Functions: lookups, financial, statistical, pivot tables, scenarios, solver and charts

TECHNICAL SKILLS:

Languages: UNIX Shell Programming (ksh,csh,sh),Verilog HDL, Matlab with toolboxes, SQL.

Applications: Samba, Tivoli (TSM), VERITAS Volume Manager.

WORK EXPERIENCE:

Confidential, Colorado Springs

Linux/Unix System Administrator

Responsibilities:

• Administrating, Installing, configuring and supporting Linux (CentOS)
• Providing technical support on application server-related and web applications issues.
• DAdministration of RHEL AS 5,6,7 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues eployment of applications on Linux / UNIX environments
• Help support a 24/7 Linux/Windows trading environment
• Conducted Disaster Recovery management and testing
• Monitored and manage the 24x7 operation of multiple high volumes Company s web sites to ensure highest stability, availability and customer experience
• Administration of RHEL and AS 5, 6, 7 which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues
• Performed system administration and operations tasks using Chef and Nagios
• Responsible for set up of BMC Patrol Agents V3.6.50.11i and 3.6.60i environment on UNIX Servers.
• Providing support (Level 2 Operation Support) for daily problem issue regarding UNIX, Cloud, and Neteeza
• Configuring and maintaining virtual server environment using VMWARE ESX/ GSX, VSphere 4.x, Xen, HP-UX nPars/vPars, Solaris 10 Zones.
• Taking care Daily RFC, IMR, ER and PMR as per client requirements.
• Knowledge on Administer Linux (RHEL, CentOS) administrator involved in server management
• Performing day to day LVM operations and System Admin tasks.
• Experience in NetApp storage devices, setup, configuration, operations and connecting to pSeries hardware.
• Involved in installing the Solaris Operating system from DVD and from a JumpStart/AI server
• Create virtual media repository and LPAR dedicated virtual optical drives in the VIO servers to make new installations, cloning and migrations faster and easier.
• Administrating Linux servers for several functions include managing Apache web servers, mail server and firewalls in both development and production.
• Configuring an IIS 7 Web Server to Serve Content, monitoring activity, delegating application management, web server security, and HTTP settings.
• Maintaining daily BMC alert and taking action as per situation
• Experience with storage networking, with vendors/technologies such as iSCSI, SAN/NAS, data center storage consolidation, EMC,EVA, NetApp, HDS, HP, or Supported and Good Knowledge of designing IT architectures for storage and backup in the enterprise.
• Monitoring Activity on an IIS 7 Web Server for Viewing Currently Executing Requests in a Worker Process .
• Working with Neteeza and providing client support as a daily basis
• Storage Provisioning, Volume and Filesystem Management using Veritas Volume Manager and VeritasFilesystem (Veritas Storage Foundation), Configuring ZFS filesystems.
• Supporting to Network and other infrastructure teams for supporting daily activities
• Mounting file systems, creating directories, files and their securities
• Administrating and troubleshooting Red Hat Cluster Suites
• Working for Infrastructure security management, Application installation & troubleshooting, Patching, Incident and Problem Management for production support
• Experience with installing and configuring sudo, proposed and implemented the idea of building a master sudoers file, and worked on a script to push the file to client LPAR’s on a weekly basis to lock down sudo access as a part of security audit.
• Installed WebSphere Portal Server 5.1/6.0/6.1 and enabled Web Content management.
• Ensuring the technical problems is dealt efficiently and effectively, to minimize service downtime and meet service level agreements and the availability of the Production/TEST/Development environments. Problem management - diagnosis, root cause elimination activity, escalation, tracking and permanent resolution of complex incidents
• Reviewing of IMRs, recommend resolution through changes and executing CMRs in production environment with proper testing in lower environments

Project Environment: Linux (RedHat), AIX, Solaris, Vi Editor, Shell Script, VM WARE, IBM WebSphere, Veritas Net backup, Veritas Volume Manager, WebSphereApplication Server.

Confidential, Rolla, MO

Linux/ Unix System Admin

Responsibilities:

• Troubleshooting all kinds of Linux/Unix problems and assisting users.
• Perform system installs and performance tuning, configure and administer AIX 5.3, 6.1 LPAR’s.
• Involved in installing infrastructure and maintaining the performance of server, availability. Storage system software and functionality and interface components.
• Storage Provisioning, Volume and Filesystem Management using Veritas Volume Manager and VeritasFilesystem (Veritas Storage Foundation), Configuring ZFS filesystems.
• Handful of experience in Solaris 10 (SPARC and x86)
• Knowledge on Process operations like nice, renice, kill.
• Experience in Web and Application Servers Web logic 10.3.x or 9.x andiPlanet.
• Experienced working with IPMP, Solaris 11, Oracle VM (LDoms)
• Responsible for set up of BMC Patrol Agents V3.6.50.11i and 3.6.60i environment on UNIX Servers.
• Experienced working with scripting like shell and Perl Kron.and used awk, grep, find.
• Administered Linux servers for several functions include managing Apache webservers, mail server and firewalls in both development and production
• Involved in troubleshooting shell scripts.
• Configuring Linux environments for Oracle Databases such as kernel configurations, filesystem layouts, ora file configurations
• Knowledge on Administer Linux (RHEL, CentOS) administrator involved in server management
• Created volumes and maintained functional areas on NetApp F760 filers and exported them via NFS
• Administrating and troubleshooting Red Hat Cluster Suites
• Wrote & automated security audit scripts in the environment.
• Configuring and maintaining virtual server environment using VMWARE ESX/ GSX, VSphere 4.x, Xen, HP-UX nPars/vPars, Solaris 10 Zones.
• Involved in installing the Solaris Operating system from DVD and from a JumpStart/AI server
• Knowledge of Kickstart and PXE administration.
• Perform day to day LVM operations and System Admin tasks.
• Experience with IBM Power4, Power5, Power6 and Power7 virtualization.
• Administering and troubleshooting of RedhatClustering.
• Hands on experience using the VI editor.
• Experience working with DELL and HP hardware.
• Knowledge of HP blades and service manager.
• Experience with storage networking, with vendors/technologies such as iSCSI, SAN/NAS, data center storage consolidation, EMC,EVA, NetApp, HDS, HP, or Supported and Good Knowledge of designing IT architectures for storage and backup in the enterprise.
• Linux (RedHat 3/4/5/6) UNIX System and Network administration in Sun Solaris (9/10), HP-UX (10.x,11.x), IBM AIX (5.x), Server Installations, configurations, upgrades and migrations on Solaris, HP- UX, Linux and

Environment: NetApp, NFS, AIX, Solaris, Redhat, LINUX, Windows 2000 Server, IBM WebSphere, Veritas Net backup, Veritas Volume Manager, WebSphere Application Server.

Confidential, VA

Linux System Admin

Responsibilities:

• Experience with installing and configuring sudo, proposed and implemented the idea of building a master sudoers file, and worked on a script to push the file to client LPAR’s on a weekly basis to lock down sudo access as a part of security audit.
• Installed and automated config 2 html scripts on client LPAR’s and documented the RGA AIX environment by designing a webpage to access the cfg2html and ganglia output.
• GSD331 troubleshooting, find any incompliant servers are Remediate GSD331.
• Installed WebSphere Portal Server 5.1/6.0/6.1 and enabled Web Content management.
• Migrated WAS 5.0 Network Deployment and Base on AIX/Windows platforms to WAS 6.0 ND.
• Experience in NetApp storage devices, setup, configuration, operations and connecting to pSeries hardware.
• Perform system installs and performance tuning, configure and administer AIX 5.3, 6.1 LPAR’s.
• Create virtual media repository and LPAR dedicated virtual optical drives in the VIO servers to make new installations, cloning and migrations faster and easier.
• Set up and troubleshoot issues with Secure Shell in the environment to accommodate script automation and password changes.
• Solid understanding of Keon theory, being able to make directory architectural recommendations such as additions to DIT, schema extensions and indexing, Analyze and implements ACLs.
• Worked on AIX 5.3 and 6.1 running on ten P5s (P550 and P560), two P6s (P6 550), and six P7s (P700, P702 and P750) attached to EMC storage subsystems.
• Experience with Power VM 2.2 (VIO), HMC Version 6 and 7, EMC CLARiiON subsystem device configuration (Power path).
• Power VM Virtualization (SEA, vSCSI, NPIV), Dynamic LPAR (DLAPR).
• Experience with Integrated Virtualization Manager (IVM).
• Experience in installing configuring and administering MQ 5.3/6.0 on AIX, Linux and Windows environments.
• Installation and configuration of LPARs with AIX 5.3 on P5 servers. Manage LPARs and provide virtual memory management and memory optimization.

Environment: Linux/RedHat Linux, Vi Editor, Unix/Linux, Shell Scripts, VMWARE.

Confidential, VA

Production support

Responsibilities:

• Involved in mounting file systems, creating directories, files and their securities AIX.
• Maintained and monitored the business applications CICLOPS, FourGen, etc. on IBM AIX 5.2, 5.1 & 4.4, 4.3 Servers.
• Involved in assessing and tuning the performance of AIX on RS/6000 systems.
• Implemented Load balancing (LSF 3.2) solutions on the Build and Application servers.
• Administered Linux servers for several functions include managing Apache webservers, mail server and firewalls in both development and production.
• Installed Veritas Volume Manager and created mirrored and striped volumes and file systems.
• Managed Sun A1000 and D1000 storage arrays with Veritas Volume Manager.
• Created volumes and maintained functional areas on NetApp F760 filers and exported them via NFS.
• Worked closely with Network and other infrastructure teams for supporting daily activities i.e. system/network changes for all Solaris, AIX and Windows 2000 Servers.
• Implemented standard backup procedures for multiple enterprise applications running on various OS and web servers.
• Configured VeritasNetbackup 3.2 for Network backup, restore and archival of network clients and managed ATL tape libraries.

Environment: NetApp, NFS, AIX, Solaris, LINUX( Redhat), Windows 2000 Server, IBM WebSphere, Veritas Net backup, Veritas Volume Manager, WebSphere Application Server.