SUMMARY

• Over 7+ years of UNIX Systems and Network administration in Linux (REDHAT /6/7/8), IBM AIX (6.x/7.x) CentOS 6x/7x
• Server Installations, configurations, upgrades and migrations on Unix, Linux.
• Involved actively in Security Vulnerability Management using the RSAM tool to monitor the vulnerabilities on all the AIX and RHEL Linux server and Apply patches / changes to address Security vulnerabilities.
• Worked on Vulnerability tools like RSAM, Risk Sense Nessus to maintain the sanity of the environment and keep it updated from all the recent vulnerabilities and patches.
• Worked on the ticketing tools like Service Now to update the records of the server vulnerabilities.
• Configure and manage Middleware and web tools such as Apache, Tomcat, Web Sphere and JBOSS.
• Experience with building and configuring AIX, RHEL servers using NIM, Kick start and WAN boot
• Experience in using VERITAS Volume manager
• Maintained AIX environment for local Oracle developers
• Implemented BMC Patrol on these computers in order to maintain sanity of logs, CPU, memory and disk utilization.
• Provide 24x7 on call server support for UNIX environment
• Good working knowledge of network & UNIX security procedures.
• Participate in installing and configuring of UNIX/Linux based Oracle 10g/11g products
• Strong knowledge of large - scale Linux deployment methodologies, kernel configuration, performance monitoring, and tuning.
• Worked in finance and automotive domain
• Customized patching and maintenance of (RHEL) Linux servers on regular schedule
• Worked on different platform on SUSE Linux which includes 10.x,11.x.
• Professional experience with VMware VSphere ESXI 6.2 ESXi 5.1, ESXi 5.50, and VMware VCenter 5.
• Regular work involving building new Linux Physical and Virtual machines using kick start and PXE
• Experience in building the Linux servers using wan boot
• Experienced in working with Network Engineers to install, manage, and configure NAS based storage and insure overall system and network security.
• Worked with Web Sphere team to configure WAS instances for BMC patrol.

PROFESSIONAL EXPERIENCE

Confidential, Tampa, FL

Systems Operation Engineer

Responsibilities:

• Actively supported business critical Applications (Linux Based).
• Supported service now Discovery tool to keep up the accurate inventory of Linux/Windows hosts.
• Transitioned locally configured users, service accounts, permissions to windows AD using SSD(ADManager).
• Actively involved in multiple application migration from RHEL 6x to 7x.
• Deployed/built/install OS from scratch using kickstart (VRA) as per business point of view.
• Customized Golden image/blueprint for System/network hardening Apps i.e CyberArk/AtlasWeb DMZ.
• Continued to work on SOX compliance to keep up with the integrity of data, access control and separation of duties.
• Support/Educate/Coordinate with internal audit team to surpass the actual Audit.
• Apply Security patches as per availability via vendor (Redhat) on Quarterly basis.
• Coordinated with app and database teams to proactively involve when Security patching is in progress to make sure all systems are up and running.
• Updated the Redhat Linux VMs hosting the Cloudera Hadoop platform from RHEL version 7.3 to 7.5 using Redhat Satellite 6.2 to remediate security bugs and fixes and also in order to satisfy prerequisites of updating the Cloudera Hadoop Platform.
• Modified Redhat Linux ulimit kernel parameters for application user space and CPU processor thread count to address apache Tomcat, SSO etc.
• Performed testing in lab environment for automating typical tasks.
• Proactively attended meetings for upcoming projects which includes IP migrations, OS Migrations, DNS change and licenses renewals.
• Participate in on call rotation as required.
• Wrote Ansible-playbook for IP change and RPM
• Followed SDLC process and made possible SOPs to streamlined infrastructure at OS/Application standpoint.

Environment: CISCO UCS, EMC Legato Networker, Brocade Switch 300,Centos 5/6,Red Hat Linux 6/7, MS Windows Server 2012,MS SQL SERVER 2016, Windows 10, VMWARE ESXI 6.0. Redhat Satellite 6.2, Tripwire, SolarWinds, Nessus, CIS Benchmark, Xtreme I/O, HP ProLiant Gxx.

Confidential

Application Support Analyst

Responsibilities:

• Install, update and test/benchmark engineering applications as per the request
• Monitored clusters loads, mainly performance and CPU utilization using IBM CACTI.
• Tested job application before deploying into development environment and moved to Production environments.
• Renewal of applications license and make sure all the licenses are valid up till sub project requires
• Support other projects with performance issues, disk usage and participate in infrastructure changes.
• Make changes as per the application upgrade, parameters and MPI as per the application catalogs.
• Primarily responsible for providing Unix access, user validation, group assignments prioritization etc.
• Troubleshooted clusters issues on both front and backend

Environment: IBM LSF clusters, RHEL 6/7, CentOS 7x, Automotive Engineering Applications, NetApp, NIS, RHEL, FLEX, SNOW, IBM CACTI

Confidential, Riverwoods, IL

Security Patching Coordinator

Responsibilities:

• Worked as a Lead in resolving Compliance Vulnerabilities on the Unix servers.
• Performed Unix patching for both disruptive and non-disruptive environment on monthly basis.
• Identify compliance issues both past due and active, addressed them in timely manner.
• Was responsible for bringing the compliance vulnerability records to a low of 60 % after joining the team.
• Involved actively in Security Vulnerability Management using the RSAM tool to monitor the vulnerabilities on all the AIX and RHEL Linux server and Apply patches / changes to address Security vulnerabilities
• Create and remediated plans with the collaboration of application team as well as Unix engineering team to resolve in timely manner.
• Coordinates with teams to get suitable patching window to create Change Tickets accordingly as per the environment availability.
• Work on the Service now Tickets for RSAM records to be updated as per the recent resolution of vulnerability.
• Scheduled meetings with the concerned teams before implementing critical changes on the infrastructure.
• Responsible for creating Weekly and Monthly reports for the Management Teams, to present the progress achieved.
• Actively attend meetings as per required by change advisory board (CAB) and Management.
• Daily monitor vulnerabilities to make sure environment is up to date with current critical security patches.
• Collected data on monthly basis from ServiceNow and Hostdb to calculate the number of Linux Servers to be patched across all the environments for patching.
• Provided severity vulnerability metrics on the weekly basis to ensure environment is in secure state.

Environment: RHEL 5.11/6x/7.3, AIX 6.1/AIX 7.1, Service Now,Centrify,RSAM, Chef, NetApp, IBM SVC.