PROFESSIONAL SUMMARY:

• Around 8 years of experience specialized in System Administration working on Red Hat Linux, Solaris, SuSE Linux, AIX, Centos, Fedora, OEL, Windows environments, Virtualization (VMware, Vsphere), Devops and AWS.
• Experience working Amazon AWS  Cloud services like EC2, S3, etc. 
• Experience in Administration, Installation, Configuring, Designing, Tuning, Troubleshooting and maintenance of  JBoss  App Server 4.0.x, 5.1.x, 6.2.x, 6.4.
• Experience in configuration of NIS, NIS+, DNS, DHCP, NFS, LDAP, SAMBA, SQUID, postfix, send mail, FTP, remote access, security management and Security trouble shooting skills.
• Experience in working on source controller tools like GIT, GIT Hub Subversion (SVN), and IBM Clear case.
• Install and configured  LAMP  on RHEL/Centos servers . 
• Executed development of the  PaaS  roadmap via decomposition into epics, stories and sprints .
• Experience in software build tools like Maven,Artifactory,Nexus, Gradle, ApacheAnt, build scripts etc.
• Got introduced to Iaas, Pass, Saas culture and hands on experience on AWS and Open Stack .
• Knowledge and good understanding on Virtualization and Cloud Computing (Private, Public and Hybrid) such as VMware/EMC (Cloud Foundry) , AWS (EC2 and S3).
• Worked on web servers and application servers like Web logic, Tomcat, Web sphere, JBOSS to deploy code.
• Used ANT and Maven for Build process.  Extensively worked on Hudson and Jenkins for continuous integration and for End - to-End automation for all build and deployments.
• Hands-on experience writing Ansible playbooks to deploy automated tasks to many servers.
• Good hands on knowledge on Automate and extended continuous delivery for applications using Chef and Puppet.
• DNS and Load balancing experience on Nginx and knowledge on HA Proxy.
• Ability to build deployment, build scripts and automated solutions using scripting languages such as Shell, Perl, Python, and Ruby.
• Deployed Openstackservers under Linux and used it to build a Privatecloud. 
• Working experience on installation and configuration of the monitoring tools like Nagios, Jenkins.
• Expertise working on Application servers and Web servers like Web Logic 10.x/9.x, Apache Tomcat 7.x/6.x.
• Good working knowledge of AWS Data Pipeline to move data between instances stored in AWSEC2instances and computer instances.
• Experience with VMwarevSphereESXi 5.1/5.0.
• Worked on Data-Center operation and migration across Unix and Linux platforms.
• Worked closely with development team in order to make the systems more resilient, scalable, and easily manageable. 
• Experience in Package Management using Red Hat RPM / YUM and Red Hat server. Experience with Sudo .
• Day to day administration of the Development environment and Production and Test environment systems. 24x7 on-call support 
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Solaris and Red hat Linux.
• Experience with various ticketing tools and currently using ServiceNow for everyday support.
• Have working knowledge of defect tracking tool JIRA , ServiceNow.
• Experience with Docker and Vagrant for different infrastructure setup and testing of code. 
• Experience with Linux/UNIX environments and scripting for Build & Release automation.
• Strong ability to troubleshoot any issues generated while building, deploying and in production support. 
• Drive improvements to our build and release scripts, tools and processes. 
• Experience in Deploying to and administering the use of Apache and Tomcat apps.
• Good Interpersonal Skills, team-working attitude, takes initiatives and very proactive in solving problems and providing best solutions

TECHNICAL SKILLS:

Build & deployment Tools: Ansible, Chef, Puppet, Jenkins, Vagrant, Ant, Maven, Gradle, CI, CD,

Databases: DyanamoDB,Oracle,MySQL,MangoDB

Cloud Technologies: AWS, VMware, Azure, Open stack.

CI & amp; Version Control: Jenkins, Hudson, Subversion, GIT, Bit bucket

Operating Systems: Windows, UNIX, RHEL, Solaris, centos, Mac.

Languages/Scripts: Python,Perl, Bash, Shell script, PowerShell,C, C++, Java,HTML

Web/App Servers: Tomcat, Apache, LDAP Server, JBoss, Apache Tomcat 6.x, and IIS 3.0/4.0, Kickstart, Jumpstart

Network Protocols: DHCP, DNS, SMTP, Ethernet, IOS, Netstat, NFS, NIS, nslookup, RIP, TCP/IP, and FTP, TFTP.

PROFESSIONAL EXPERIENCE:

Devops Engineer/Aws

Confidential, Redmond, WA .

Responsibilities: 

• Analyzed Business Requirements, Functional Requirement & High level Design documents. 
• Assisted in migrating the existing data centre into the  AWS environment. 
• Installed the application on  AWS  EC2AMI , Redhat , UbuntuInstances . Configured the storage on S3 Buckets. 
• Developed Chef Recipes to configure, deploy and maintain software components of the existing infrastructure. 
• Used Chef to manage Web Applications, Config Files, Database , Users, Mount Points, and Packages . 
• Written cookbooks for Web Logic, JDK 1.7, and Jenkins , tomcat , JBoss and deployment automation. 
• Reduced build + deployment times by designing and implementing Docker workflow. 
• Set up system for dynamically adding and removing web services from a server using Docker , Nginx . Configured Docker container for branching purposes. 
• Experience in creating alarms and notifications for EC2 instances using CloudWatch . 
• Implemented  AWS solutions using EC2 , S3 , RDS , EBS , ElasticLoadBalancer , Auto - scaling groups. 
• Monitoring LiveTraffic , logs , Memoryutilization , Diskutilization and various other factors which are important for deployment. 
• Participated in configuring and monitoring distributed and multiple platform servers using Chef and Ansible . 
• Hands on experience in using Apache frameworks like JUnit , SOAPtesting ,Camel, Maven , ANT, Log4J and integrating tools like Jenkins , Bug Tracking.
• Experience in Installation of Oracle and  MySQL
• Experience in designing and implementing continuous integration system using Jenkins by creating Python and Perl scripts.
• Managed and configured VMware virtual machine for RHEL , Centos Linux servers.
• Implemented the setup for Master slave architecture to improve the Performance of Jenkins . 
• Installed, configured and maintained DNS, FTP and TCP/IP on Red Hat  Linux & good knowledge on Network topologies such as LAN & Network connections.
• Installed, configured and maintained web servers like HTTP Web Server, Apache Web Server, Apache Tomcat, Nginx, Jboss.
• Experienced in installing and managing NFS, FTP and Samba for file sharing.
• Day to day tasks in Red Hat Linux including upgrading rpms , kernel , HBAdriver , configuring SAN Disks, multipathing and LVM file system.
• Linux Kernel, memory upgrades and swaps area and performed Red Hat Linux kickstart installations.

Environment: Git, Jenkins, CHEF, Maven, AWS, EC2, WebSphere, Ruby, Pearl, PHP, Putty, Cyberduck,Ansible,Apache,Tomcat,JBoss,Linux,Windows,MAC.

Devops Engineer/Linux admin

Confidential, Seattle, WA

Responsibilities:

• Maintained and administered GIT source code tool. 
• Created Branches, Labels and performed Merges in Stash and GIT . 
• Got introduced to Iaas, Pass, Saas culture and hands on experience on AWS and Open Stack .
• Automate infrastructure in AWS using Amazon web services. Deploy puppet to completely provision and manage AWS EC2 instances, volumes, DNS, and S3. 
• Deployed Puppet , Puppet Dashboard and Puppet DB for configuration management to existing infrastructure.
• Experience in installing, configuring and supporting  JBOSS  Application server and Oracle Weblogic Server in Windows environment 
• Established a team of  DevOps  engineers chartered with  PaaS  platform delivery & Developed technical roadmap for delivery of the  PaaS  platform 
• Executed development of the  PaaS  roadmap via decomposition into epics, stories and sprints 
• AccomplishmentsDesigned and delivered a full micro-services based reference architecture.
• Delivered IntDev, QA, and PRD  PaaS  environments based on:
• Fully authenticated private docker repository v2 on AWS
• Mesos cluster on AWS
• Marathon cluster on AWS Consul cluster on AWS 
• Launching and configuring of Amazon EC2 (AWS) Cloud Servers using AMI's ( Linux/Ubuntu) and configuring the servers for specified applications. 
• Created continuous integration system using SVN , Ant , Jenkins , chef , Puppet full automation 
• Integrated Build Process through Jenkins to various SCM tools like GitHub, SVN. 
• Work closely with the Unix team to set up the F5 load balancer for the WebLogic/Jboss & Applications servers.
• Perform daily system monitoring, verifying the integrity and availability of all hardware, server resources, systems and key processes, reviewing system and application logs , and verifying completion of scheduled jobs such as backups. 
• Build application and database servers using AWS EC2 and create AMIs ( Linux/Ubuntu) and configuring the servers for specified applications. 
• Provided support to Production, Staging, QA, Development environments for code deployments, changes and general support. 
• Experience in working with AmazonGlacier for Archiving tasks like creation , deletion and configuration.
• Deploying applications in production using deployment tools(Dimensions) .Performance tuning the JVM to suit the specific application needs. 
• Documented all post-deployment issues in a log and assist in resolving these issues where applicable, maintaining timely updates within the log. Manual and Automation process of creating branches tags and code merging.
• Implemented connectivity to Oracle 11g/10g/, DB2, SQL Server, MySql database usingJDBCAPI from Servlets and JSP through JavaBeans& Enterprise Java Beans(EJB)
• Ensured all steps are successfully completed and document their completion times and issuelogs . 
• Created continuous integration system using SVN, Ant, Jenkins, chef, Puppet full automation.

Environment: Puppet,Windows Solaris, UNIX, C++, Java, Eclipse 3.20, Ant, Jenkins Application Server, CVS.

Devops Engg/ Linux Administrator

Confidential, PA

Responsibilities:

• Implemented SCM infrastructure from the ground up. Manage source code repository, build, and release configurations, processes, and tools to support daily development, test, and production build and software deployment operations.
• Architect, design and maintain automated build and deployment systems using Jenkins , Subversion , Maven and Nexus. Creating software build and release best practices, standards, procedures, and tools.
• Updating monitoring parameter in Nagios with active and passive check.Installed and configured Nagios plugins.
• Installed and Configured JBOSS on Java Applications.
• Responsible for granting access and pushing out all applications to groups and users via  SCCM system (System Centre Configuration Manager) 
• Administration, package installation, configuration of Centos 5/6.
• Installing MySQL on Linux Server and securing installation.
• Installation of Apache , Weblogic and Tomcat Web servers.Handling tomcat applications performance issues.
• RPM and YUM package installations, patch and other server management.
• Creating new file systems, monitoring disk usage, checking and backup of log files administration and monitoring the disk based file system.
• Wrote build / integration / installation scripts in python and bash as needed.
• Used Ansible for communication with the machine through a JSON protocol.
• Installing and configuring Apache and supporting them on Linux production servers.
• Kernel compilation and patch up gradation on Linux servers.Administration and setting up Oracle RAC on RHEL 5.x servers.
• Troubleshooting Linux network, security related issues, capturing packets using tools such as iptables, firewall, and TCP wrappers and NMAP.
• Developed automated processes that run daily to check disk usage and perform cleanup of file systems using shell scripting and CRONTABs .
• Creating and Managing Users / Group accounts and setup a user's work environment.
• Monitoring the File System, CPU load for better Performance and system performance parameters using iostat, vmstat and prstat.
• Monitoring system performance, tune-up kernel parameter, adding/ removing/ administering hosts, users, disks on DNS / NIS domain.
• Performed OS upgrades and Patch loading as and when required.Backing up and restoring files across the network.
• Source code admin - Manage and configure SVN / GIT , resolve issue regarding source code management, manage branching and merging, code freeze process.
• Researched alternative build strategies and platforms to enhance the reliability of the build process therefore reducing the lag time between code check-in and QA testing
• Redefined processes and implemented tools for software builds , patchcreation , sourcecontrol , and releasetracking and reporting , on UNIX platform.
• Gathered coordinates all dependent jar files in ANT projects and converted them to MAVEN .
• Installed and configured Jenkins and created parameterized jobs to kick off builds for different environments.
• Responsible for build and deployments in STAGE , PREVIEW and PROD environments.
• Participated in weekly release meetings with Technology stakeholders to identify and mitigate potential risks associated with the releases.
• Developed and supported the Configuration and Change Management Processes and Procedures

Environment :RHEL5/6,CRONTAB,DNS,RPM,YUM,KORN,BASH,JBOSS,JAVA,SCM,MAVEN,ANT,SVN.

Unix/Linux Administrator

Confidential, Philadelphia, PA

Responsibilities:

• Patching of RHEL5 and Solaris 8, 9, 10 servers for EMC Powerpath Upgrade for VMAX migration.
• Documented the standard procedure for installation and deployment of VMAX Migration and logical volume manager.
• Developed an Email notification and Email campaign manager using  LAMP , PHP, MVC and Amazon Web services.  I nstall and configured  LAMP  on RHEL/Centos servers. 
• Installation, configuration, support and security implementation on following services: DHCP, SSH, SCP.
• Configuration and administration of NFS and Samba in Linux and Solaris.
• Maintained and monitored all of company's servers' operating system and application patch level, disk space and memory usage, user activities on day-to-day basis.
• User administration on RHEL systems, HP-UX machines, management & archiving.
• Installations of HP Open view, monitoring tool, in more than 300 servers. Attended calls related to customer queries and complaints, offered solutions to them.
• Creation of VMs, cloning and migrations of the VMs on VMware vSphere 4.0.
• Worked with DBA team for database performance issues, network related issue on Linux/Unix Servers and with vendors for hardware related issues.
• Expanded file system using Logical Volume Manager (LVM) Solaris Volume Manager (SVM)
• Managed and upgraded UNIX 's server services such as Bind DNS.
• Configuration and administration of Web (Apache), DHCP and FTP Servers in Linux and Solaris servers. Supported the backup environments running VERITAS Net Backup 6.5.
• Handling problems or requirements as per the ticket (Request Tracker) created.
• Implemented System policies and hardware profiles, hard disk configuration for fault tolerance, disk mirroring and back up the data using BACKUP devices.
• Participated in on-call rotation to provide 24X7 technical supports.
• Configuration and troubleshooting - LAN and TCP/IP issues.
• Managed shared NFS files system, mounting and unmounting NFS server, NFS client on remote machine, sharing remote file folder, starting and stopping the NFS services.
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment. Documented changes applied.

Environment: LAN, TCP/IP, NFS, LVM, SVM, DHCP, SSH.

Unix/Linux Administrator 

Confidential, Chesterbrook, PA

Responsibilities:

• Involved in administration of UNIX Servers Sun Solaris with SUN Cluster, HP-UX in 24/7 environment.
• Installation, Configuration & Upgrade of operating  systems , patches and other software Packages on server as well as workstations. 
• Monitoring  System performance and do kernel tuning to enhance the  system Performance. 
• Netscape and Apache web server & samba server configuration and troubleshooting. 
• Writing Shell scripts for  system maintenance and file management. 
• Used VERITAS volume manager to create file  systems as per user and database Requirements 
• Backup management through VERITAS Netbackup. 
• Administration & troubleshooting of Sun Clustered Servers. 
• Disk and File  system management through VERITAS Volume Manager 
• Database creation, Tablespace and datafile maintenance. User creation, granting roles and privileges 
• Trouble shooting of day to day  system problems 

Environment: Sun Solaris, Windows-NT, SUN Ultra, HP/9000