Manager Management

Roopesh Kumar

ac1qv4@r.postjobfree.com 443-***-****

PROFESSIONAL SUMMARY

●Having 5+ years of professional experience in the IT industry including experience in Systems Administration primarily on Red Hat Linux 4/5/6, CentOS 5.x/6.x, OEL 5.x/6.x, UNIX (Solaris 10), Configuration, Build and Release Engineering, DevOps Engineer, and Automation . While on this span I acquired knowledge, skills that proved the attitude to achieve anything within the time frame.

●Good Experience in Configuration Management, Cloud Infrastructure, Automation. It includes Amazon Web Services (AWS), Ant, Maven, Jenkins, Chef, SVN, GitHub, Nexus CVS, Perforce, Tomcat, Linux etc.

●Experience with System Administration, which incorporates implementation, administration, and Support in heterogeneous environments with expertise in Red Hat Linux.

●Knowledge of Agile-Scrum development and delivery models.

●Experience in branching, tagging and maintaining the version across the environments using SCM tools like Subversion (SVN), CVS and GIT on LINUX and Windows environment.

●Excellent in OS upgrades, patches, packages installation, upgradation on production servers.

●Experience configuring Storage on Linux in environments with EMC SAN, NetApp NAS.

●Experience in Blades Chassis Managements on (HP) servers.

●Worked closely with Oracle Database administrators from UNIX perspective.

●Extensively involved in configuring and administering storage solutions using Red Hat Linux Native Multipathing.

●Strong Knowledge and understanding in the configuration of DNS, DHCP, SMTP, NTP and Apache Web Server on Linux.

●Strong Working Knowledge and Understanding of Network Protocols such as TCP/IP and UDP.

●Experience with configuring and administering NFS on Red Hat Linux.

●Experience in build tools ANT & MAVEN to write Build.xml and Pom.xml scripts respectively.

●Experience in managing software artifacts required for development using repository managers like Nexus and Artifactory.

●Worked on various Configuration Management Tools like Chef, Ansible, Puppet and Vagrant.

●Excellent Experience in Installation, configuration and Volume/File system management using Logical Volume Manager (LVM) in Linux and Solaris Volume Manager (SVM) in Solaris.

●Implemented and enhanced shell scripts in Linux using Bash, Sed, Awk.

●Experience working in Solaris 10 Container technology, created local and global zones, modified local zone parameters.

●Experience installing and Cloning Linux and Windows VM on Xen, VmWare and KVM.

●Experience with Storage vMotion in ESXi 5.0 for live migration of running Virtual Machines from one storage to another with no downtime to the VM and used virsh utility in KVM to perform live migration.

●Exposure to Cloud Technologies such as OpenStack. Experience with installing and Administering OpenStack.

●Used Shell Scripting (Bash and Ksh), Python based scripts for merging, branching and automating the processes across the environments.

●Administered and Engineered Jenkins for managing weekly Build, Test and Deploy chain, SVN/GIT with Dev/Test/Prod Branching Model for weekly releases.

●Extensively experienced in using Build Automation tools like ANT, Maven.

●Experience in Server Administration (Windows, IIS, Linux, UNIX, Solaris) and Server administration tools

●Hands on experience with deployment and migration.

TECHNICAL SKILLS

●Operating Systems: RHEL 4/5/6/7, CentOS 5/6/7, OEL5/6/7, SUSE 10/11/12, Solaris 10/11, Windows 10/7/XP/NT, AIX

●Version Controls: GIT, SVN, CVS and Perforce

●Languages: Shell Scripting (Bash), Sed and Awk, Python, JavaScript, HTML, Java, C

●Build Tools: Ant, Maven

●Databases: Oracle 9i/10g/11g, Mysql, Ms Access, DB2 8.1, SQL Server 2005/2000

●Configuration Management: Ansible, Puppet, Chef, Docker, Jenkins, Docker

●Monitoring Tools: Splunk

●Web Servers: IBM Websphere 6.1, JBoss, Apache Tomcat 5.x, IIS 6.0

●Services: NFS, LDAP, Apache, SSH, Send Mail, DNS, FTP, DHCP and Samba

●Cloud Technologies: AWS EC2, VPC, SNS, OpenStack, VMWare

●SDLC : JIRA, Iterative and Agile Methodologies

WORK EXPERIENCE

GDIT, TOWSON, MD

DevOps/Linux Administrator, Jun 2016 – Present

Responsibilities:

●Worked on Administration, maintenance and support of Red Hat Enterprise Linux (RHEL) servers.

●Executed user administration and maintenance tasks including creating users & groups.

●Supporting Java based applications like JBoss, WebLogic & WebSphere and involved in J2EE application deployment activities.

●Installed and configured SSH & SSL for secured access on Linux Systems.

●Implemented rapid provisioning and life cycle management for Red Hat Linux using kickstart.

●Wrote Shell scripts and Perl scripts for day-to-day Administration and create Perl scripts to automate the deployment.

●Administering the NetApp 6200 and 3200 series, creating aggregates and volumes.

●Creating, cloning Linux Virtual Machines, templates using VMware Virtual Client and migrating servers across ESX hosts.

●Used Anthillpro as Continuous Integration (CI) Server.

●Configuring server monitoring tool Zabbix and monitoring the server status.

●Worked on configuring NIS, NFS, DNS, DHCP, FTP, SFTP, Telnet and RAID levels.

●Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.

●Developed and supported the Software Release Management and procedures.

●Responsible for design and maintenance of the Subversion Repositories and the access control strategies.

●Implemented & maintained the Branching and Build/Release strategies utilizing Subversion (SVN).

●Used Ant, Maven and Gradle as a build tools on java projects for the development of build artifacts on the source code.

●Extensive exposure to Configuration Management policies and practices with regards to SDLC; along with automation of scripting using BASH/Shell, Perl scripting.

●Involved in defining documenting and maintaining code deployment pilot automation project documents.

●Installed and configured Anthill Pro for Automating Deployments and providing a complete automation solution.

●Created continuous integration system using Ant, Jenkins, Puppet full automation, Continuous Integration, faster and flawless deployments.

●Extensive experience in using Continuous Integration tools like Cruise control, Build Forge, and Hudson.

●Standardized all make files for parallel build support and maximized build avoidance and wink-in.

●Build Results are managed and deployed using workflows in Anthill Pro.

●Worked on Maven to create artifacts from source code and deploy them in Nexus central repository for internal deployments.

●Written Chef Recipes to automate our build/deployment process and do an overall process improvement to any manual processes.

●Lead and assisted with the scoping, sequencing, planning, and creating GIT environments

●Developed procedures to unify, streamline and automate application development and deployment procedures with Linux container technology using Docker.

●Designing and implementing fully automated server build management, monitoring and deployment by using technologies like Chef.

●Deployed the Java applications into Apache Tomcat Application Servers.

●Experience in writing Maven pom.xml and Ant build.xml for build scripts.

●Utilized WAR and JAR files for deployment of enterprise apps.

●Provided assistance for management of AWS storage infrastructure systems.

Environment: Red Hat Linux 5.0, SVN, GIT, ANT, Jenkins, Maven, Weblogic, Perl, Puppet 3.x, Chef, Nexus, Anthill Pro, Junit, Jira, Python, SQL, Linux (RHEL 5.x/6.x), Solaris 9/10/11, Amazon EC2, Apache/ Web Server, Zabbix, Nagios 4.x, DNS, NFS, Shell Scripting.

Softrun technologies, hyderabad

Linux Administrator, Dec 2011 – Mar 2014

Responsibilities:

●Installation, Configuration and Upgrade of CentOS 5.x/6.x, RHEL 5/6 operating systems.

●Experience in installation of CentOS on multiple clients using Kickstart.

●Monitoring System performance using iostat, vmstat, TOP and SAR.

●Experience with installation and cloning of Linux and Windows VM’s using Xen and KVM.

●Configuration of Static IP interface for Linux VM’s on the command line.

●Closely worked with Application teams for support and troubleshooting issues on Linux.

●Create and administer Volume groups, Logical Volumes using LVM.

●Create new File systems, and monitoring logs, disk usage on CentOS.

●Created YUM Server, Automated rpm updates on multiple clients with appropriate Target version.

●Create and use SSH Tunnels with Local and Remote Port forwarding to access remote Systems.

●Responsible for responding to and closing tickets through Jira ticketing system.

●Installation, Configuration and Upgrade of Red Hat Linux 5/6, operating systems.

●Expertise in Installation of Red Hat Enterprise Linux on multiple clients using Kickstart Process.

●Install various packages through rpm and yum as per the Company Policy.

●Involved in troubleshooting of CPU, Memory, I/O and Network on Linux Operating Systems.

●Experience with Monitoring System Performance and capacity.

●Planned, Scheduled and Implemented on Linux boxes as part of proactive maintenance and Secure Shell (SSH) Implementation.

●Monitoring Capacity Planning, Health checks of the Systems. Documentation. Incident and Defect analysis of server and application hosts.

●Configuring EMC and NetApp SAN Storage on Linux Operating System using Linux Native Multipathing.

●Creating Linux Block device Partitions on Shared SAN storage for use to the Database table spaces.

●Create volumes and administered SVM. Creating Meta devices, soft partitions and mirroring the devices.

●Understanding of NFS, DNS, DHCP and Samba on Redhat Linux and mounting NFS based File Systems on the Linux Servers with appropriate options.

●Creating and Scheduling of Cron Jobs such as backup, System Monitoring and removal of unnecessary files.

●Writing Shell Scripts to automate System Process.

Environment: RHEL 5/6, OEL 5/6/7, Suse Enterprise 10/11/11, Solaris 10/11, AIX, HP-UX, HP DL Series, HP Superdome, CentOS 5/6, HP DL Series, NetApp SAN and NAS.

VISTARAIT SOLUTIONS, HYDERABAD

Linux Administrator, Jan 2009 – Nov 2011

Responsibilities:

●Used Logical Volume Manager (LVM) for Disk Management and allocation of space to Physical volumes. Creating Logical Volumes and clearing unused devices.

●Documented and automated Red Hat Linux Installations through Kickstart and yum.

●Closely coordinated with SAN Team for storage, fabric Issues.

●Expertise in Creating new file systems, managing and checking data Consistency of file systems. Administration and auditing the Linux servers and installation of the patches on production and development systems.

●Closely worked with SAN Migration team to bring the EMC Disks to online state.

●Involved in troubleshooting bottlenecks of Memory, CPU, Devices and Network using ps, vmstat, iostat, netstat, sar, and nfsiostat commands, tuning the performance.

●Logging events and forcing crash dumps, securing servers and troubleshooting issues.

●Co-ordination with backup team for recovery of files/slices.

●Setup NFS File Systems and shared them for Clients, Maintenance of NFS Server with Auto Mounts.

●Involved in preparation of functional and system specifications. Estimated Storage requirements for applications.

●Handling Problem tickets and Change tickets and implementing them as scheduled within SLA.

●Create and maintain technical documentation for new installations and systems changes as required.

●Providing solutions to client about Disk mirroring and RAID implementation using LVM.

Environment: Solaris 8/9/10, Red Hat Linux (4/5),HP DL Series, EMC Symmetrix DMX 2000/3000.

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