SUMMARY:

Experienced IT professional with over 7 years as a system administrator, comfortable with different operating systems such as Window/Linux/Unix. I have extensive hands - on experience working with different application across different platform and an enthusiastic learner plus a very good team player who completes the task ahead of schedule.

TECHNICAL SKILLS:

Operating System: Server 2003/2008/2012 , VMware ESX, ESXI, Linux (RedHat, CentOS, Fedora, Debian etc.)

Application/Software: Oracle, ansible, puppet, AWS, Apache, Tomcat, Jboss, pxeboot, cobbler, GIT, Jchem, Backup Exec, BMC Remedy, MS Office, FileZilla, WINSCP, Kickstart, DNS, TCP/IP, FTP, NFS, DHCP etc.

Programming: Knowledge of bash, Ruby and yaml

EXPERIENCE:

Linux/Oracle System Administrator

Confidential, Washington, DC

Responsibilities:

• Planning, installation, configuration, management and troubleshooting of Red Hat Enterprise Linux 5,6 and 7
• Created databases, administered tablespaces, tables, indexes and other database related objects.
• Very confident with Apache, Tomcat, NFS, FTP, and DHCP in Linux.
• Deployment of war file on Jboss and tomcat web server
• Installation and configuration of apache tomcat
• Installation and configuration of jchem application.
• Register servers on red hat satellite for updates
• Patch servers using Red hat satellite servers
• Monitoring backup using Backup Exac
• Regularly monitored Alert-log Files and trace files on the day-to-day basis..
• Work closely with software developers as needed to troubleshoot and resolve production outage
• Create mount points for database administrators for Oracle database install
• Creation and management of approved, user accounts and groups
• Controlling user authentication via sudoers
• Manage file systems utilization using script scheduled as cron job
• Performed automation with simple shell scripting
• Maintain user-based security via password aging
• Maintain file system and host security using chmod, chown, chgrp, immutable bit, iptables and tcp wrappers
• Provide system administration support of computers, servers, racks of equipment and figure/manage LAN interfaces
• Provide support for web development, testing, system integration, installation scripts and other duties to support systems and network infrastructure
• Analyze system logs and identify potential issues with computer systems
• Created and deleted user accounts enforce security and compliance rules to regarding passwords and access to computer systems.
• Introduce and integrate new technologies into existing environments
• Configuring password less login
• Disabled direct ssh root login on servers
• Perform software package installation, upgrades and updates using yum and rpm commands
• Manage filesystems using fdisk and LVM
• Perform critical system administration tasks from Single user mode
• Installation, configuration and management of apache web servers
• Installation, configuration, and management of tomcat server for developers
• Managing user and group authentications for web and application serversConfigured various RMAN parameters as per the requirement.
• Used Data Pump for migration, Remapping, SQL*loader, import and export of database/schema/Tablespace
• Working closely with developer to run their script in test and production environment.
• Implemented and maintained Database security. Created, Altered, Dropped Users as and when required and administer their respective quotas.
• Created and managed documentation on the configuration and support of the Oracle databases.
• Provide database administration on production, testing and development database servers.
• Create and manage database user.

Linux/DevOps Engineer

Confidential, Bethesda, MD

Responsibilities:

• In - depth technical strengths and business understanding for full-cycle project and post-implementation problem-solving requirements.
• Maintained all the UNIX, Linux and Windows environments for deployments.
• Experienced in cloud technologies like AWS and VMWare.
• Significant experience with Amazon Web Services (AWS) and with the configuration of various Amazon products (Amazon EC2, Elastic Load Balancing, Auto Scaling, Amazon S3, Amazon VPC, Amazon SES, Amazon SNS, Amazon IAM, Amazon Cloud Watch, Amazon Elastic Beanstalk, Amazon Cloud Formation, Amazon Ops Works and Amazon RDS).
• EC2 Instances to build Fault-Tolerant and High Availability applications.
• Helping developers to push their code to the master branch
• Experienced in all phases of the software development life-cycle (SDLC) with specific focus on the build and release of quality software.
• Configuring Git servers, and create dufferent branches for developers
• Configuring, Automating and Deploying Puppet and Ansible for configuration management to existing Infrastructure.
• Have a good knowledge Nagios and experience in monitoring tool like Splunk, PRTG.
• Installation, configuration and administration of Linux systems (RHEL 5.x and 6.x)
• Working experience with Active Directory and LDAP.
• Experience in using software tools to support the current operations and network designing software, such as Visio. Knowledge about JIRA Administration.
• Strong ability to troubleshoot any issues generated while building, deploying and in production support.
• Experience in support activities of applications - trouble shooting, performance monitoring, resolving the production incidents.
• Experience in using virtualization tools like Virtual Box, VMware and provisioning virtual machines.
• Manage users and group policies using AWS IAM.

Linux Systems Administrator

Confidential, Frederick, MD

Responsibilities:

• Hands-on experience in system design, construction, deployment, administration and support of Unix/Linux servers.
• Provide day-to-day System administration support
• Setting up Puppet Enterprise and Open Source Puppet
• Adding nodes to puppet master and writing puppet modules and manifests
• Deployment of various applications to puppets nodes using puppet master
• Writing puppet modules and manifests to maintain consistencies of files and services on nodes/agent
• Managed systems routine backup, scheduled jobs, enabled crontab jobs.
• Created partitions and logical volume Manager (LVM)
• Installing, configuring and maintaining Linux servers
• Monitoring of Linux servers, and troubleshooting as required.
• Configuration and administration of Apache web server and Tomcat for web application Server on Red Hat machine
• Installation of RHEL using KickStart and applying security policies
• Consistently troubleshoots and resolve network systems and application to identify corrective solutions.
• Performed monitoring, tuning and troubleshooting of Linux system
• Installed, configured and maintained NFS, FTP and SSH on Linux server
• Experience in Installing Firmware Upgrades, kernel patches, system configuration, performance tuning on Linux systems.
• Participated in on call rotation to provide 24/7 technical support for Linux infrastructure
• Implementation of SSH for secure remote login
• Created and maintained technical documentation for new installation and system changes as required
• Performed capacity analysis, monitored and controlled disk space usage on systems.
• Created and maintained user accounts, profiles, security and rights

IT Support Specialist

Confidential, MD

Responsibilities:

• Troubleshooting system, network and user issues.
• Installed and partitioned disks drives. Created, mounted and maintained file systems to ensure access to system, application and user data.
• Created and maintained user’s accounts, profiles, security, rights disk space and process monitoring.
• Participated in projects involving build of computer labs and classroom computers.
• Tracked, monitored and update tickets until completion.
• Maintained inventory levels of equipment and software and currency of software licenses.
• Worked to troubleshoot student laptop issues.
• Mapped authorized users to specified share drives.
• Performed other duties as needed.