SUMMARY:

• 6+ years of IT experience with five years of emphasis in Redhat Linux, SUSE Linux, Centos.
• A good experience with Virtual Compute and Provisioning concepts, Server Virtualization with VMware Enterprise (ESX, ESXi, vSphere, vCenter, Update Manager, vCenter Operation Manager,) and Cisco UCS with Blade & Rack servers.
• Installed and maintained Hardware/Software in Production, Development and Test Environment integrating with Unix/Linux (RHEL/SUSE) support team.
• Daily Production support like daily log checking, backup/recovery procedures, disaster recovery, periodic maintenance and off - hours problem support.
• Implemented FCIP solutions with MDS switches (9216i and 9509 switches) and successfully migrated fabric from McData to Brocade switches.
• Integration of Systems and SAN management tools into operation.
• Hands on Experience in Configuring DHCP, DNS (BIND), FTP, NTP, NIS, Mysql, LDAP and NFS.
• Technical review of the hardware, software, mitigating risk and the deployment process.
• Capacity planning.
• Proficient in effective communication with all levels of management and the clients.
• Raid Configuration.
• Disaster Recovery planning(DR).
• Install and manage software and hardware RAID disks to improve fault tolerance and performance.
• Automating backups by shell for Linux to transfer data in S3 bucket .
• Troubleshooting Production Server Problems related to web applications, Send mail, disk space, and file system, DNS and network connectivity.
• Performance Management & Tuning of RHEL and AIX.
• Creating logical volumes, extending the file systems using both LVM and VxVM 4.1.
• Configuration of Volume groups, logical volumes and file systems on Linux.
• Performed new disks addition, formatting, partitioning, disk space allocation, monitoring system performance, system tuning, server hardening and crash recovery issues.
• Experience in Creating, Mounting and Unmounting new File Systems.
• Experience in diagnose and resolve modem and TCP/IP connection problems.
• Implemented Kickstart for RedHat automated installations on VMWARE.
• Package Management like Install, remove, update and querying packages using RPM /YUM tool.
• Experienced with support 24/7 on Red Hat Linux Administration.
• Experienced in SAN and NAS Management (EMC arrays, Confidential etc.)

TECHNICAL SKILLS:

Platform/Operating Systems: Linux(RhEL 5.X, 6.X,7.X) AIX 6.X,7.x,PURE,Centos,Fedora,Suse, Windows Servers (2008,2012), Windows XP,7,8,10, Vmware Esxi,Macintosh OS.

Applications/Services: Apache,Centrify,Tomcat, Confidential WAS,Jboss,Nagios/OMD,MYSQL,DB2,Jira,Confluence,NFS,Puppet VSFTPD/FTP,Samba,WinSCP,FileZilla,Vmware Vsphere client,Vmware Vsphere Web Client,OpUtils,DNS,lynis,Fail2Ban,Kickstart.

Programming/Scripting Languages: proficient in Bash Scripting and Powershell.

PROFESSIONAL EXPERIENCE:

Security Analyst III

Confidential, indianapolis, indiana

• Deployment of Centrify Direct Control and integration of Unix/Linux systems with Active Directory Services to enable Single Sign On (SSO).
• Provide tier 2 level support for applications and OS related issues while mentoring Tier 1 Helpdesk staff for Centrify application.
• Identity Access Security Management/User Account Management for the organization.
• Linux/Unix/Windows Server Administration.
• Centrify Application deployment and maintenance in environment consisting of 6000+ physical & Virtual servers.
• Creating Technical Documentation for internal Training.
• BAU support by working on Incident /Changes /Request coming in Service Now.
• Coordinate with different teams for Centrify Deployment and support.
• Lead small projects for the team as and when required, Test and implement quick and effective solutions for the same.
• On Call Support on rotational basis.

Security Analyst III

Confidential, indianapolis, Indiana

Responsibilities:

• Manage and support OS level, Server and Client side applications, and other relevant IT services.
• Deployment of Centrify and integration of Unix/Linux systems with Active Directory Services to enable Single Sign On (SSO).
• Provide tier 2 level support for applications and OS related issues while mentoring Tier 1 Helpdesk staff for centrify application.
• Identity Access Security Management/User Account Management.
• Linux/Unix Server Administration.
• Centrify Application deployment and maintainance in enviornment consisting of 6000+ physical & Virtual servers.
• Creating Technical Documentation for internal Training.
• BAU support by working on Incident /Changes /Request coming in ServiceNow.
• Co-ordinating with different teams for Centrify Deployement.

Linux Systems Administrator

Confidential, aurora, Colorado

Responsibilities:

• Installation/Maintenance of Hardware/Software in Production, Development & Test Environment as an integral part of the Unix/Linux (RHEL 5.x / 6.2, SuSE/AIX) Support team.
• Installation, configuration and maintenance of Red Hat, Cent OS, AIX and Windows servers.
• Installed and configured RedHat Satellite server for package transfer across servers, to store client's system profile and to control other servers in the network.
• Configuration and installation of multiple Dev. servers using Kickstart. installation and Configuration of JIRA,Confluence.
• Upgrade of Vmware Esxi Hypervisor from 5.x/6.x and to install, configure and maintain Red Hat Linux.
• Capacity Planning, Infrastructure design and ordering systems.
• Created and scheduled Cron Jobs such as for Backup, System Monitoring and removed unnecessary files.
• Configuration of LVM and managed it.
• Implemented day - to-day tasks in RedHat Linux that include upgrading rpms, kernel, HBA driver, configuring SAN Disks, multipathing and LVM file system
• Installed, configured, maintained and administered the network servers DNS, DHCP, NIS, NFS, SENDMAIL.
• Worked with DBA's to install RDBMS database, restore and generate logs.
• Involved in adding new disks, formatting, partitioning, disk space allocation, monitoring system performance, system tuning, and crash recovery issues. installation and maintenance of NFS, FTP and Samba for file sharing.
• Built Linux servers using VMWare ESX and VMWare ESXi.
• Set up repositories for Redhat, implemented YUM, SSH and other security tools.
• Application of Load Balancer in the Virtual Linux Server.
• Daily system monitoring using commands like vmstat, iostat, top, tcpdump, defrags and so on for efficient server operation.
• Package management like Install, remove and update and querying packages using RPM tool.
• Used Samba to print and share files in mixed Environment.
• Experience with installation of Tomcat and Apache Web Servers on Red Hat Production Servers.
• Monitored trouble ticket queue to attend user and system calls, diagnosed and resolved systems related tasks in accordance with priorities setup in dealing with trouble tickets.
• Installed, upgraded and managed packages as well as the dependencies through RPM.
• Patching and Package administration.
• Implemented RAID techniques and created disk groups and volumes using Veritas Volume manager.
• Maintained Load balancing, High availability, Failover functionality and Disaster recovery included changing of IP address of the web and app server machines, which caused change in virtual host and http transport configurations.
• Involved in extensive trouble shooting of issues by finding out root causes, analyzing core dumps and resolved system crashes.
• Created user account, group account, management and allocation of quotas for users and groups as instructed.
• Provided 24/7 on call supports in debugging and fixing issues related to Redhat and SuSE Linux.

Linux Systems Administrator

Confidential, Indiana

Responsibilities:

• Provide technical support / installation / configuration in Red Hat Linux
• Provide support for the install, maintenance and customization of Red Hat Linux on HP Blades.
• Configure and provision HP SAN (EVA and XP) on Red Hat Linux
• Provide support for the Red Hat Directory Server (RHDS) and the Lightweight Directory Access Protocol (LDAP) configuration, performance, maintenance and operation.
• Evaluate impacts of new releases, develop test plans and implement into production environment.
• Provide support in patch management and HP SA software installation automation scripting.
• Experience working with DCA (Datacenter Administration) term for Datacenter migration.
• Experience in Server Hardware troubleshooting, Replacing hardware and following up with Hardware Vendors
• Involving in Daily incident management and resolves the day to day problems raised by the users and incidents which are logged by Event monitoring system
• Support of performance tuning software developers, requiring countless hardware and software
• Installing and configuration of red hat Enterprise Linux environment including RHEL 4,5 and 6 and OEL 5.5, AIX 5.2/5.3 and Suse Linux 9 and 10 .
• User Accounts management and password aging on RHEL servers
• Responsible for managing Redhat Linux production and development environment servers
• Managing VMware ESX 3.0 and two GSX servers for development, and around 24+ virtual machines.
• Implemented mail server by using SMTP and POP3 and installed Symantec SMTP gateway for scanning all mails.
• Responsible for installation and configuration of Red hat Cluster and load balancing
• Handled SuSe clusters using HP Service Guard (HPC) and LVM's in SUSE Linux.
• Handling Cacti and Nagios for Server, storage and SAN switches monitoring.
• Network installation via cobbler Kickstart server and centralized yum server for client package update.
• Managing DNS for external and internal domain &Sendmail Relay Server for outgoing mails.
• Assisted Oracle DBA team with migration DB from AIX to Linux RAC environment. Linux Oracle Enterprise servers installation and advanced configuration (Oracle RAC) with Confidential 5.x series hardware.
• Managing EMC & Pillar SAN storages.
• Samba & NFS file Server for sharing files on multiple clients.
• Implemented Spacewalk Open Source (RedHat Satellite Server) System management application for auto provisioning, software grouping, custom package channel, system inventory, auto deploying patches and monitoring of RedHat Servers.
• Implemented open source base monitoring tool Nagios 3.0 for servers, SAN switches, EMC SAN Storage and VMware ESX and ESXi.
• Administering our production and non-production Linux servers.
• Perform security patching of Linux servers
• Extensive knowledge on the zoning tools like Cisco Fabric Manager, Brocade Fabric Manager.
• Creating maintaining user profiles, security, rights, Backups of data and Disaster Recovery.
• Creating, Mounting and unmounting new File systems.
• Supporting the interface needs of new development initiatives

Linux/UNIX Systems Administrator

Confidential, Richmond, Virginia

Responsibilities:

• Administration of 2000 + RHEL 5.x, 6.2, 6.3 and 6.4 servers which includes installation, testing, tuning, upgrading and loading patches, troubleshooting both physical and virtual server issues.
• Management and monitoring of various services using Service Management Facility and Service Administration.
• Designed an Architectural Diagram for different applications before migrating into Amazon cloud for flexible, cost-effective, reliable, scalable, high-performance and secured.
• Build servers using AWS: Importing volumes, launching EC2, RDS, creating security groups, auto-scaling, load balancers (ELBs) in the defined virtual private connection.
• Automating backups by shell for Linux to transfer data in S3 bucket
• Creating alarms in Cloud watch service for monitoring the servers performance, CPU Utilization, disk usage etc.
• Maintaining the user accounts (IAM), RDS, Route 53, SES and SNS services in AWS cloud.
• AWS Import/Export accelerates moving large amounts of data into and out of AWS using portable storage devices for transport.
• Implementation and administration of VMware ESXi 4.x, 5.x, VCenter for running Redhat Linux, windows Servers on Production and Development. working with Apache, HTTP, NginX Server including proxy and caching configurations. experience with Java application servers such as Tomcat or Web Sphere Application Server Community Edition.
• Working on different blades and different clusters in vCenter.
• Installing RedHat Linux using Kickstart and applying security polices for hardening the server based on the company policies.
• Working in Agile Project Management environment to deliver high priority, high-quality work.
• Extinctive knowledge of Agile and Scrum background, JIRA Usage, Iteration Management and Metrics Usage.
• Administrated server consolidation program through use of VMware ESX server and VMware Virtual Center.
• SWAP box configuration, Implementation of disaster backup and recovery. Performance Management & Tuning of RHEL.
• Veritas File system and Veritas Volume Manager 2.5 are used to configure the RAID 1 and RAID 5 Storage Systems.
• Installed and configured SAMBA server for windows and Linux connectivity.
• Installed and Configured Sun availability Suite 3.5 to implement Point-in-time snap shots and remote mirroring. configuration & troubleshooting of applications including NginX, Kafka, HAproxy, etc
• Perform DB profiling and optimization; analyze and propose schema changes to PostgreSQL databases as needed.
• Implemented and configured Backup policies and Storage Units.
• Managing disk storage with Veritas Volume Manager 3.5/4.1 and Solaris Volume Manager with Veritas File System (VxFS).