SUMMARY:

• Over 7 years of experience on various flavors of UNIX (Linux, Solaris, AIX, Hp - UX) and Experience in System Administration, System Builds, Server builds, Installs, Upgrades, Patches, migration, Trouble shooting, Security, Backup, Disaster Recovery, Performance Monitoring and Fine-tuning on UNIX Systems.
• Experience in working on various Linux Distributions/Image building (Redhat, Centos, Ubuntu, Suse).
• Experience and Familiar with Virtualization technologies like installing, configuring, administering VMware ESX/ESXi.
• Experience in Security Hardening in Unix, Linux servers.
• Understanding of networking concepts, (IE. Configuration of networks, router configuration and wireless security, TCP/IP, VPN, DNS, Content Filtering, VLANs, and routing in LAN/WLAN, Ethernet Port, Patch Panel and wireless networks.)
• Experience in using various network protocols like HTTP, UDP, POP, FTP, TCP/IP, and SMTP.
• Experience On deploying VM Linux Using Templates.
• Experience in HA & DRS, VMotion & SVMotion in VMware Environment.
• Experiencing on Networking & SAN\NAS Configuring Storage for ESX/ ESXi Environment.
• Sound knowledge on VERITAS Cluster Server, Veritas File System, VERITAS Volume manager and Service Guard Clustering.
• Experience in System Administration on Red Hat Linux, Ubuntu, IBM AIX, SUSE Linux, Sun Solaris Server environments.
• Experience in working with various AWS Services like EC2, S3, ELB, Auto scaling, Route53, SNS, SES, Cloud Watch, RDS, Dynamo DB, VPC, Cloud Formation.
• Proficient DB administration (Oracle, DB2, Sybase and SQL) knowledge for maintaining, pruning, and performing required DB tasks.
• Experience in Red-hat Satellite Server with custom repositories to provide a stable management solution for the Linux environment.
• Experience in Installing, configuring and maintaining Samba, Web Sphere& Web Logic Application Servers, Nagios, Apache, Tomcat.
• Experience with Docker and Vagrant for different infrastructure setup and testing of code.
• Experience in Server monitoring, capacity planning, application monitoring with the help of Tivoli, App Dynamic, Nagios, New Relic.
• Working Knowledge on using and developing Shell, Perl and python, Ruby scripts used to automate day-to-day administrative tasks.
• Extensive experience using MAVEN and ANT as a Build Tool for the building of deployable artifacts (war & ear) from source code.
• Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
• Advance Knowledge in VLAN Trunking and Tagging.
• Worked on SAN & NAS devices like EMC Clarions, and NAS Devices like NetApp filers.
• Expertise in middleware applications related to SLSE and Linux.
• Creating volumes using storage for VMAX Array on Redhat & Solaris servers
• Expertise with Root File System in Creating, Populating, Analyzing and Wrapping.
• Interacting with multiple internal application teams to create customized Load Balancing solutions
• Performed vMotion and Storage vMotion of Virtual Machines across different cluster with respect to security policies and application development requirements.
• Performed Virtual Machine Snapshots for Application machines for Migrations and failback.
• LUN creation and storage mapping along with Multipathing.
• Provide management of Microsoft Windows 2008, 2008 R2, 2012 R2 servers. DNS DHCP and Active Directory.
• Management and administration of Windows 2008 and 2008 R2, 2012 R2 Active directory (Created Accounts, Reset Passwords, and Allowed Access to different Directories using NTFS permissions)
• Experienced in VERITAS volume manager, configuration and maintenance of VERITAS File system and Red hat Cluster on 2 node Active and Passive configuration.
• Managed Hosts and Clusters, Resource Pools, VSphere HA, VSphere Vmotion, Storage vmotion, DRS, VSphere Upgrade and configured standard and Distributed Switches in VMware Environment.
• Performed VCOPS to maintain the health checks of the VM'S running Windows and Linux.
• Good knowledge in configuring RAID using RAID Manager and LVM in SAN (EMC, NetApp, Vblocks) and Host based storage arrays.
• Capable of handling multiple tasks and work effectively both in a group and as an individual to meet deadlines.
• Experience with software development methodologies such as Waterfall & Agile (Scrum).
• Expert in Jumpstart and Kickstart Installation Methods.
• Installing and updating packages using YUM (custom YUM Servers/repositories) and Red Hat Satellite Server.
• Expertise in Veritas Clustering, Redhat Clustering, Veritas Volume manager and Veritas Net Backup.
• Expertise in Installing and Managing LDAP, NIS, NFS, FTP, DHCP, SAMBA, SSH and DNS.
• Experience supporting 24x7 production computing environments. Experience providing on-call and weekend support.

TECHNICAL SKILLS:

Operating Systems: Linux (Red Hat 4,5,6,7, Suse, Oracle Enterprise Linux, Ubuntu,Centos), IBM AIX 6.x,5.x, HPUX11.0, Sun Solaris 10/9/8/7/2.x.

Cloud: Amazon Web Services.( IAM, EC2, S3, AMI, EBS, CLI, SNS, and RDS)

Hardware: Hp ProLiant-DL 360 G5, BL 460C G7,DL580 G7,DL385 G2,DL380 G6,DL 580 G5,DL 380G5,IBM 8840,IBM 9115,IBM8877,IBM 7985, Sun Fire Servers- E25k, E15k, 12k, E280R, E480R, V240, 420R, V440, V480, V490, V880, V, E6900 and E2900, Data Centre Servers: E250, E450, E3000 and E3500, M5000, M8000, M9000, T2000, T5120, T5240, T5440, Sun Storage- 3130, A1000/D1000, EMC DMX 800 and 1000

Tools: Sun Cluster 3.2, VERITAS NetBackup 6.0,5.0. VERITAS Storage Foundation Suite, NetApp, Solaris Volume Manager, send mail

Languages: Scripting, PERL, Python, Shell, Bash, PL/SQL, HTML, Ruby, Powershell

Databases: Oracle 12g,11g,10g/9/8, Sybase 11.5.1, POSTGRESSQL, MYSQL, MSACESS

Networking: TCP/IP, DNS, NFS,UDP, NIS, SSH, DHCP, Cisco Routers / Switches and LAN

Tools: IBM-TEM, Sun Cluster 3.2, VMware, VERITAS NetBackup 6.0, Z/View, Tune, VERITAS Storage Foundation Suite, Solaris Volume Manager, Sun Java Studio, send mail. IBM Big Fix

Web Technologies: Apache, WebLogic 8.1, Web Sphere, TomCat, JBoss, IIS, HIS, ESX 2.5.1, 25.2 & 3.0 beta.

PROFESSIONAL EXPERIENCE:

Confidential, Orlando, FL

Sr. Unix/Linux Administrator

Responsibilities:

• Deployed RHEL 6 and RHEL 7 using Kickstart, Installation of Solaris 9, 10 using Jumpstart including performance monitoring, scaling and capacity planning and hardware maintenance of physical servers.
• Created and managed VMs (virtual server) and also involved in the maintenance of the virtual server.
• Install and configure CentOS, Red Hat, and Ubuntu on both the physical server and Virtual Machine
• Provided steady state support by 24X7 shift rotation in Disney Operation Center for Unix based Issues.
• Worked on VERITAS Cluster Server, Veritas File System, VERITAS Volume manager and Oracle rac cluster.
• Working knowledge on VMware VSphere client 6.0.
• Extensively worked with VMware ESXi … vCenter Server, Host Clustering with HA, DRS, Replication Manager 5.x/6.0, Site Recovery Manager, vMotion, Physical to Virtual Migration and Managing SAN Data stores.
• Created monitors, alarms and notifications for EC2 hosts using Cloud Watch.
• Provided Configuration Management and Build support for different applications, built and deployed to lower and higher environment.
• Developed Bonding Concept on Red hat Linux Servers supporting Middleware applications.
• Maintained and administered GIT and DevOps source code tool.
• Worked on Continuous Integration systems with Maven and Jenkins.
• Linux Endpoint Security solution engineer/architect worked in the Enterprise Security Platforms (ESP) Engineering Team, provided the highest level of security consultancy and engineering support for Linux security agents.
• Worked with AWS Cloud platform and its features, which include IAM, EC2, S3, AMI, EBS, CLI, SNS, and RDS.
• Configured Bonding on Oracle RAC Cluster using the Round Robin and Active backup options
• Installed and maintained OSSEC logging services on Ubuntu Linux
• Manage file systems using Software RAID and recover an array, Manage file systems using Logical Volume Management, Resize file systems and protect them with LVM Snapshots.
• Disk mirroring and RAID implementation using VERITAS Volume Manager and Linux Volume Manager.
• Comfortable working in a Data center environment - swapping of disks, Attaching/Detaching storage, increasing Utilization.
• Maintaining mission critical databases in a SaaS environment
• Installed and configured Apache on Linux and Solaris and configured Virtual hosts and applied SSL certificates.
• Configured and maintained System Security using IPTABLES and TCPWRAPPERS in LINUX
• Installed and configured of SAMBA, squid, FTP Server, SMTP Server, RAID and LVM on RHEL.
• Worked as part of Testing Team in Application testing using Manual methods and Scripts.
• Tuning the kernel parameters based on the application/database.
• Supported SaaS model product leveraging Windows 2003/2008, Linux, JBoss, MSSQL Server (2003, 2005), JRun, MySQL, and IIS.
• Worked on File systems issues and maintained F/S as per clients, data base and application requirements.
• Raid Volume creation, user creation and data removal processes for Servers on day to day bases.
• System administration support to developers, support for Tomcat, Weblogic web server support.
• Administered Apache web servers, Oracle & DB2 databases.
• Kernel & OS patching on servers using IBM-TEM (Big Fix).
• Responsible for Backup and Recovery operations of various servers using VERITAS Net Backup.
• Shell scripting, Perl for Linux/Unix Systems Administration and related tasks.
• NIS, NFS, AUTOFS, NTP Configuration and Administration.
• Installation and configuration of node with respect to other web application server as web logic server.
• Configured volume manager, backup groups, logical hosts, and data services, and bringing up the cluster. Performed User Account management, data backups.
• Trouble shooting third party vendor issues Net backup client, EMC power-path.

Environment: Linux(Redhat Enterprise Linux, Oracle Enterprise Linux, Ubuntu),RHEL5.X,6.X,7.x,Solaris 10/9, AWS(IAM, EC2, S3, AMI, EBS, CLI, SNS, and RDS) Servers: Hp ProLiant DL 360 G5, BL 460C G7,DL580 G7,DL385 G2,DL380 G6,DL 580 G5,DL 380G5,IBM 8840,IBM 9115,IBM8877,IBM 7985, IBM TEM -tivoli endpoint manager, NetApp, EMC storage, VMware vsphere-6.0.

Confidential, Detroit, MI

Linux/Unix System Administrator

Responsibilities:

• Primary responsibility includes building and supporting AIX/Solaris/Redhat Linux,5,6,7 for Enterprise Preference Management System project.
• Experience in building Red hat Linux Servers through Kick start installation with PXE Network boot.
• Maintaining and enhancing data integrity through design, maintenance and security in a variety of SaaS applications.
• Performed Zone installation, configuration, migrations in Solaris 10 environment
• Work includes installation and configuration of VMware ESX 4.x - 5.1, installation and configuration of VMware Virtual Center Server and creating Virtual Machines
• Strong technical qualities - preferably in a global environment, ideally within the finance industry. Engineering, analysis and development of Linux endpoint security agents / solutions.
• Involved in migration activities using Redhat LVM, Solaris LVM, Veritas and EMC Open Migrator.
• EMC disk configuration for Web, Application and Database servers
• Performance Tuning and Troubleshooting Web/Application/Database Servers
• Use puppet Automation tools for configuration management in different systems.
• Puppet automation, installing and configuring puppet server and agent setup, developing apache, tomcat Web Sphere MQ 7.0, Web Sphere Application Server Automation, Apache solr 4.x/5.x, jboss EAP 6.x, tomcat 6.x/7.x/8.x.
• Used Puppet, Ansible for Configuration Management tool and also understanding of container technologies.
• Installation, configuration and maintenance DNS servers, Mail servers, FTP servers, NFS, NIS, NIS+, RPM and Samba Web servers on Redhat Linux and CentOS
• Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic, EAI, Business Objects etc.
• Installed packages using YUM repositories and configured Disk Management using LVM.
• Configured SMTP using Postfix to allow the inbound and outbound connections for mail server
• Fixed corrupted bootloader using Rescue install process in Red hat Linux.
• Working on developing shell and python scripts used to automate day to day administrative tasks.
• Enabled SSH, SFTP and SUEXEC access for functional accounts on Linux and AIX Servers supporting WebSphere Applications
• Installation and configuration Veritas Net Backup5.1 on Sun Severs and performing Backup using VNB.
• Monitoring Disk Activity Checking for free space Removing temporary core files
• Writing Perl, shell scripts for automation of log activity of application process and CRON jobs.

Environment: HP, Dell servers (Redhat Enterprise Linux & CentOS Servers), Solaris 2.9,10. RHEL5.X,6.X, Servers: Sun M5000,T5120, Sun E220R, Sun E420R, Sun E450,Sun E1000, Sun E3000, Sun E3500, Sun E4000, Sun E4500, Sun StorEdge Array 3900/5200,Vsphere Client - 5,5.1 .

Confidential, Charlotte, NC

Unix/Linux Admin

Responsibilities:

• Installation of Sun E250, E450, Sun E3000,E6900, SunFire v440/v480/v490 with Solaris 8/9.
• Upgraded/Migrated Solaris 7 to Solaris 8 on Sun servers and workstations.
• Configured Winbind on all Linux workstations which enables all the Linux users to be authenticated on Microsoft Windows 2000 Active Directory Server.
• Monitor T1, ISDN, 56k Modem, Router connectivity and all main servers' activity on a continuous basis.
• Used RPMs to install, update, verify, query and erase packages from Linux Servers.
• Authorized Solaris users/groups to access various applications and troubleshot various user problems using management tools.
• Planning, documenting and supporting high availability, data replication, business persistence, fail-over, fail-back using VERITAS Cluster Server in SAN environment.
• Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, UAT/Staging.
• Incident management for Unix Servers (Solaris and Linux).
• Primary responsibility includes building and supporting Solaris/ Red hat Linux 3,4,5 servers.
• Worked on Kernel Tuning and Logical Access
• Managing Volumes according to the requirement using LVM and Veritas
• Working with Account Management to configure PAM/Winbind/LDAP/Active Directory Creating VM account Management, Access Rights and set password and group configurations
• Installation and Configuration of Veritas Volume Manager, Veritas File system and Veritas Cluster Server
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM) commands.
• Checking the Virtual Center for tuning and Performance
• Troubleshooting the issues on virtualization of machines using Zones in Production Environment.
• Managed VMWare guest OS including Red Hat Linux AS and ES versions.
• Updating YUM Repository and Redhat Package Manager (RPM).
• Installation and configuration Veritas Net Backup on Sun Severs and performing Backup using Veritas Net Backup.
• Sudo administration and Redhat Linux package administration using RPM and YUM.
• Involved in migration of projects from one flavor to another one.
• Worked on SAN using Tivoli Storage Manager in allocating filesystems to the end users and for managing storage.
• Involved in development, user acceptance, performance testing, production & disaster recovery server.

Environment: Solaris 8/9/10, Red Hat Linux 4/5, Sun Enterprise Servers, SUN FIRE 6800/E6500/E4500, Sun Sparc1000, IBM RS/6000, Sun V880,V890,V480,V490,Sun-T2000,Disk Suite.

Confidential

System Administrator

Responsibilities:

• Installed and configured of Linux servers using JUMPSTART and KICKSTART installation and periodic Patch upgrading using Live upgrade.
• Troubleshooting hardware and replacement of failed components running on LINUX environment, Performance tuning activities like allocation and monitoring of disk space using Disk Quota system.
• Installed and administered DNS, NIS, NIS+, NFS, and Send mail for centralization and firewall setup with iptables on Solaris and Red Hat.
• Provided highly available data services to users using Solaris volume manager (SVM) and Logical volume manager (LVM).
• Created and maintained user accounts and print queues, installed tools/compilers including GNU required by the environment and maintained their licenses.
• Resolved config issues and problems regarding NFS mounts, NIS maps, user ids, rpm installs, driver installs.
• Configuration of Hardware and Software RAID. Disk replacement and File system recovery.
• Used Veritas Volume manager for Storage administration.

Environment: Confidential DRS6000 sparc server, SUN Solaris 2.7/8/9, RHEL 4/5, SUN Enterprise 3500, 6500, 220R, 250, 420R, Enterprise workstations Ultra 80, Ultra 60, Ultra 10, Ultra 2, Veritas Volume Manager 3.0.