SUMMARY:

• 13+ years of experience as Systems Administrator, devops engineer and cloud administrator working with UNIX operating systems such as RHEL, VMware, Jenkins, Git, SVN, Chef, Puppet and AWS contributing innovative methodologies and alternatives to the growth of the company having excellent client relation skills and the drive to complete tasks effectively and efficiently. Core strengths include 13+ years of system administration experience in a heterogeneous UNIX environment.
• Red Hat Linux, VMWare ESX/ESXi Administration
• Puppet & Ansible
• Kickstart & Jumpstart
• AWS Cloud Computing
• Workflow Planning
• Installing and maintaining Apache & PHP
• Packages installation
• Group and User administration
• Productivity Improvement
• & Mentoring
• RHEL and AIX Environment.
• Configuring and Administering NIS+, NFS, DNS
• Configuring and Administering LDAP, DNS, DHCP, Mail Servers & Web Servers
• Systems Installation, Configuration & Upgrading
• Storage allocation and Disk Dynamic Multi pathing

TECHNICAL SKILLS:

Operating Systems: Solaris8/9,RHEL 5/6/7,AIX5.3/6.1/7.1,Ubuntu,VMware,ESX/ESXi,5/5.5/6.0 and AWS

Hardware: Sun Fire, Sun Enterprise Servers, HP DL360, 580 G4, G5, &G6, HP C7000 & C6000 Blade Enclosures, Confidential Blade center and Dell servers, Power 6/7/8, Linux HP Proliant

Tools: VERITAS Volume Manager, Veritas Cluster Server, VERITAS Net backup, VMWare ESX, Redhat Satellite 5.x, 6.x

Internet tools: Apache Web Server on Linux WebLogic, Jenkins, Sendmail, Postfix, Webmin, WebLogic, JBoss and Apache Tomcat.

Languages: Shell Script, Python

Databases: Oracle9i,10G,11G,12c,DB2,MySQL and RDS

Networking Protocols: SNMP, SMTP, TCP/IP, IPX/SPX, SLIP, UUCP, LAN, WAN, PCNFS, ARP/RARP, FTP/TFTP, RIP, DHCP, DNS, NIS, NIS+, Auto mounter.

Server Management: Vxvm, Puppet, Chef, Ansible, Nagios, Amazon EC2 and S3.

Storage Area: Confidential Shark DS 4800 and DS8300, Netapp, EMC, Confidential XIV and HITACHI disks

Backup Utilities: Net backup, Nim Server, TSM and Veeam, vRanger for VMware vSphere & ESXi 5 and ESXi 6

PROFESSIONAL EXPERIENCE:

Confidential, North Brunswick, NJ

UNIX SME (Subject Matter Expert)

Responsibilities:

• Installing, configuring and administering Jenkins Continuous Integration tool on Linux machines along with adding/updating plugins such as GIT, Maven, ANT, and Puppet.
• Experience in Create and implement chef recipes to configure OS and provisioning scripts to updates for deployment of middleware and database servers.
• AWS for applications operating within both its Public Cloud and Virtual Private Cloud infrastructure.
• Installed RHEL 5.x/6.x/7.x, CentOS and installation of packages and patches for RHEL Servers.
• Troubleshooting Hardware and Operating system related issue on RHEL 5.x and 6.x and 7x Servers.
• Installing, configuring and maintaining VMware ESXi 5.5 & 6.0 support V Center Servers.
• Created Puppet manifests for Configuration Management to manage Web Applications, Configuration Files, Data Bases, Users, Mount Points, packages.
• Writing shell scripts to accomplish day to day system administration task.
• Experience in the configuration management tools Puppet and Ansible.
• Implemented AWS solutions using EC2, S3, IAM, RDS, EBS, Elastic Load Balancer, Auto scaling groups.
• Installing and managing different automation and monitoring tools on Red Hat Linux like Nagios.
• Experience with networking and configure the bonding on RHEL 5x, 6x, 7x servers.
• Creating Amazon EC2 instances using command line calls and troubleshoot the most common problems with instances and monitor the health of Amazon EC2 instances and other AWS services.
• Using Kickstart servers for automated installation of RHEL and CentOS Linux servers on both physical and virtual platforms.
• Worked on Version controller like GIT and integration tools Jenkins.
• Implemented day - to- day tasks in Red HatLinuxthat include upgrading RPMs, Kernel, HBA driver, Configuring SAN Disks, Multipathing and LVM file systems.
• Experience in supporting middle ware environments like Apache/Tomcat, JBoss and WebLogic running on Redhat Linux.
• Experience in Install and configure the infrastructure servers including windows active directory domain and connect to ESXi servers.
• Doing Server Analysis and Pre-install checks to ready servers for software installs.
• Hardening the systems as per the Standard Confidential security requirements or the Client guidelines if provided.
• Installation and Configuration of Confidential Tools Servers for Clients as per their environment.
• Installing and Advanced troubleshooting of Confidential 6 pack tools like SRM, Fusion, Parity, Tivoli, IEM, TADDM, TAD4D, SEA, Shared Systems Director and LCF.
• Installed various backup clients like Tivoli Storage Manager (TSM), Legato, Avamar.
• Monitor the Tivoli (dsmc) backup failures and troubleshoot any issue by coordinating with the Backup team.
• Creating and scheduling Cron jobs as part of the tools installation process.
• Managing Space related issues, Password issues and new account setup for users.
• Expertise in Security Hardening for Unix Platforms.(Linux/AIX/Solaris).
• Setup of SUDO and implementing templates for various application teams as per requirement.
• Extensively working experience in LVM, includes creating VG, LV, file system on RHEL.
• Installing package and performing the patch using YUM in RHEL servers
• Troubleshooting and performance tuning of various systems problems such as application, network And hardware related issues.
• Creating Clusters for High Availability (HA) and Distributive Resource Scheduling (DRS)
• Migrate Physical Servers to Virtual Server using VMware Converter (P2V Converter)
• Creation of distributed Virtual Switches, Ports and Port groups and setting up Layer 2 Security Policies for Virtual Networks.
• Root Cause & System Log Analysis and reporting.

Confidential, Warren, NJ

Unix/Linux/Administrator

Responsibilities:

• Installation, Configuration, Maintenance and Administration of Red Hat Enterprise 3/4/5 using Kickstart, and worked on Windows 2003 Server.
• Troubleshoot networking and system related issues by systematic approach.
• Worked on solution for RHEL and hardware compatibility issues faced while installation of RHEL 3 and 4.
• Applied patches on all Linux Boxes from common repository using RPM.
• Worked on installation of home based agents on all target servers.
• Worked on installation and registration of avamar client on all linux boxes.
• Installation of Graphical Packages on Red hat Linux, Solaris and AIX as per requirements.
• Create logical volumes using automation script.
• Installation, Configuration and Administration of NFS, NIS, DNS, Samba and Apache on Sun Solaris and Linux platforms.
• Worked on installation of Powerpath on all Linux boxes.
• Administrated DHCP, DNS and Samba services in Linux.
• Working on evaluating new hardware and software.
• Responsible for Connectivity Issues among various Servers and Switches and also responsible for installation of various hardware components on various servers
• Troubleshooting Day - to-Day issues with various Servers on different platforms.
• Responsible for Kernel Tuning and RPMS installation on Linux Servers
• Working with DBA’s to install and configure ORACLE Database, Oracle Apps .
• System performance tuning and Monitoring file systems, Installation of S/W related patches.
• Configuration, Administration and maintenance of NFS, DNS, NIS & NIS+ on Linux Servers
• Responsible for patches for the operating system, building startup shell scripts, managing the automation of CRON jobs and managing file systems
• File system Administration, Setting up Disk Quota
• Implemented & Configured X-Windows for Windows users to connect to Linux Servers
• Troubleshooting logon problems, boot process and printing
• Responsible for designing High Availability Solutions for different applications, using Veritas Clusters/ Storage Foundation Suite.
• Kickstart Installation and Configuring DNS, DHCP, NIS, NFS in LINUX and other Network services.
• Troubleshooting Network, memory, CPU, swap and File system issues, TCP/IP, NFS, DNS, SMTP in Linux and AIX servers.
• Worked on Virtualizing Red-hat servers using vSphere 4.1/5.0 and managed ESX servers using vCenter and also worked with ESX Cluster and VMotion.
• Writing shell scripts to accomplish day to day system administration task.
• Configuring and supporting Domains, LPARs, and DLPARs.
• Understanding of SAN and NAS storage.
• Extensively working experience in LVM, which includes creating VG, LV, file system.
• Install and configure VERITAS Netbackup on AIX/LINUX Servers
• Build, configure and administer Oracle RAC Clusters for RHEL/AIX environment
• Installation configuration and troubleshooting of Linux VMware, Hp and Confidential Blade servers
• Restore the backup of production file systems using Netback up tool
• Prerequisites, creating procedures and configuration for project documentation
• Created user accounts, groups and performed user account management

Confidential, Washington, DC

Unix/Linux Administrator

Responsibilities:

• Installation, Configuration, Maintenance and Administration of Red Hat Enterprise 3/4/5 and Suse Enterprise Linux, Windows 2003 Server, and Workstation including Patches.
• Administrated DHCP, DNS and Samba services in Linux
• Working on evaluating new hardware and software.
• Responsible for Connectivity Issues among various Servers and Switches and also responsible for installation of various hardware components on various servers
• Troubleshooting Day - to-Day issues with various Servers on different platforms.
• Configuring Backup solutions on SAN/NAS storage.
• Managing backup and restoration of data using Confidential -Tivoli Storage Manager, ufsdump/ufsrestore and vxdump/vxrestore.
• Configuration, Administration and maintenance of NFS, DNS, NIS & NIS+ on Linux Servers
• Responsible for patches for the operating system, building startup shell scripts, managing the automation of CRON jobs and managing file systems.
• File system Administration, Setting up Disk Quota.
• Implemented & Configured X-Windows for Windows users to connect to Linux Servers
• Troubleshooting logon problems, boot process and printing
• Responsible for designing High Availability Solutions for different applications, using Veritas Clusters/ Storage Foundation Suite.
• Implementing & troubleshooting Veritas Clustering in Prod/ QA/ Dev environment.
• Adding & removing nodes from Clusters.
• Implementing data replication using Veritas Volume Replicator (VVR)
• Managing file systems; grow them on fly using Veritas volume manager or LVM.
• Configuring Virtual Machines under VMWare ESX Servers.
• Acquiring & Initializing LUNs in clustered & stand-alone environments.
• Familiar with VMWare environment.
• Configure servers to use HTTP, DNS, NFS, IPMP, Disk Suite, Veritas Volume Manager, NetBackup Storage Disk configuration etc.
• Implementing software RAID at install-time and run-time on Linux
• Add, remove, and resize logical volumes on Linux
• Diagnose and correct boot failures arising from boot loader, module, and file system errors on Linux Configure trouble shoot backup issues. Perform manual backups & restore on Veritas NetBackup & Confidential TSM(Tivoli Storage Manager).
• Troubleshooting Solaris network problems.
• Troubleshooting NFS and DNS problems.

Confidential, Chicago, IL

UNIX Administrator

Responsibilities:

• Installed, configured & maintained Sun Solaris 10/9/8 on various SUN servers
• Strong experience and handled NFS, DNS, TCP/IP, NTP, DHCP.
• Daily Morning Health checks of Network & Servers.
• Installation and Administration of Veritas Volume Manager. Replacements of failed disks in the Veritas disk groups.
• Network Installation using Jumpstart.
• In NIS+ environment: Creation, Modification, Removal of User IDs in different groups.
• Managed centrally located NIS+ Tables
• Troubleshoot and found cause analysis for all the hardware and software problems related to the Sun servers. Conduct performance tuning and monitor these servers. Test the kernel parameters and patches in the testing, development environment, then implement on Production servers.
• Configured Samba 2.2.2 server to share the departments Windows clients for the Solaris users.
• Installed Solaris from jumpstart installation servers and upgraded the OS, updated the patches, consolidated servers and all other jobs related to system administrator. Added and installed the Packages for Production Server. Created the privileges and gave access to the DBA to install Sybase and Oracle.
• Configured Sun StorEdge Arrays to support the Production Database. Created Volumes of size up to 1.5 TBs for various instances of database applications using VERITAS volume manager Installation
• User Issues taken care through Web based tools: Pertaining to Unix OS, Hardware issues like Performance issue, User Account problems, Password issues, Space issues etc., New Account setup for users, New Installations from users.
• Configured Samba on Intel platforms, established Network connectivity with PC’s through SMB for windows clients.
• Responsible for Root cause analysis after Panic/Dump/Crash related to Linux
• Scheduling/Controlling of jobs using Autosys, Cron.
• For SUNOS backup and restore of files were taken using ufsdump and ufsrestore commands. GUI based Legato networker was also used as a backup tool.
• Writing Shell scripts to parse data for transitioning server data.
• Wrote scripts to automate installations and developed secure images for all machines
• Autosys agent install on Solaris servers and failure job troubleshooting.
• Wrote a Shell scripts to synchronize user IDs across our NFS network

Confidential

UNIX Administrator

Responsibilities:

• Installing Operating Systems and Software related patches.
• Installed the operating systems Solaris upgraded the software according to the requirement
• Adding/expanding new storage to existing/new systems using Veritas Volume Manager
• Administering file systems and recognizing file access problems.
• Maintenance of Hard disks (Formatting and Setup, Repair from crashes)
• Managing user accounts, security, rights, permissions and disk quotas.
• Performing patches research, patches installation and packages installation on Sun Solaris
• Planning and implementing system upgrades including hardware, operating system and periodical patch upgrades
• Adding packages and patches.
• Installation and configuration of databases like Oracle, SQL Server.
• Installed and configured WIN NT and WIN2000 servers.
• Performed administrative tasks like User management, security management, Backup/restore, space management, installing service packs and patches.
• Configured WIN2000 server’s network for load balancing / failover.
• Configured DHCP and DNS services on NT and WIN 2000.
• Assist Administrators with issues relating to Active Directory such as account lockout issues, Group policy configuration issues, permissions and authentication issues. Created and managed (Group Policy Objects) GPOs and security policies.
• Managed administration of Microsoft Exchange 5.5, 2000, 2003, Active Directory and Windows 2000\2003 OS and network. Implemented desktop/notebook standards and deployed GPO configuration for production compute environment
• Worked on NTFS security.
• Performed administrative tasks like User management, Backup/restore.
• Mirrored volumes to maintain redundancy.
• System performance tuning, upgrades and Backup and restore Disk crash recovery.
• Writing shell scripts as per requirements
• Documenting Maintenance process and change management.