PROFESSIONAL SUMMARY:

• Over 9+ years of IT experience specialized in Systems Engineering, strong in CI/CD (Continuous Integration/ Continuous Deployment) process, with strong background inLinuxAdministration, Build & Release Management,DevOpsand Cloud Administration.
• Experienced in evaluating automation tools like Chef, Ansible and Puppet for cloud deployment with respect to infrastructure needs as well as development needs
• Highly proficient in developing custom Cookbooks, modules and playbooks for Chef, puppet and Ansible while creating resources in Azure and AWS
• Expert in variousAWSServices like (AWS) VPC, EC2, Cloud formation, S3,IAM, RDS, Route 53, Cloud Watch, Dynamo DB and Elastic cache
• Vastly experienced in Logical Volume management, High availability, Clustering, Disaster Recovery, Installs, upgrades, migrations for RHEL, Suse, CentOS, AIX and Windows
• Experience in implementing and configuring of Volume Management by using Veritas Volume Manager (VxVM), Solaris Volume Manager (SVM) and AIX/Linux Logical Volume Manager (LVM) in Linux and Windows Operating Systems
• Experience in SUDO administration, creation of Volume groups, logical volumes, file systems, trouble shooting file system mounting problems, Implementing RAID levels, user account management and SSH Implementation
• Extensively worked With VMware ESXi 5.1/5.5/6.0, vCenter Server, Host Clustering with HA, DRS, Replication Manager 5.x/6.0, Site Recovery Manager, vMotion
• Experience in using Version control systems includes Subversion (SVN), GIT and GITHUB.
• Extensive experience usingMAVEN and ANTas build tools for the building of deployable artifacts
• Experience in RDBMS like Oracle, My SQL and Cassandra (NO SQL) DBMS, and tools such as SQL Server 2008/2012/2014, MySQL, MongoDB
• Experienced in Implementation of Containerization technology Docker, and various Docker orchestration tools such as docker - compose, docker swarm, boot2docker
• Expertise in configuring Alerting and Monitoring mechanisms with Nagios, Splunk and EMC DPA
• Extensive experience of deploying code to various application servers like JBoss, Apache Tomcat Web Server, Oracle WebLogic and IBM WebSphere
• Experienced in configuration, administration and supporting high end SAN/NAS storage arrays like EMC VMAX, EMC VNX, VNXe and Clariion
• Experienced in the Installation, configuration and maintenance of backup tools like IBM TSM, Veritas Netbackup and EMC Networker
• Expertise in working with LAN/WAN, firewalls, AD/Local Authentication & DNS/DHCP generation from a single host file routing for Internet and Intranet connectivity using different protocols like TCP/IP, DHCP & SSH
• Experience in configuration, administrating, maintaining of Apache HTTPD, DHCP, NIS, NIS+, DNS, SAMBA, NFS, SMTP, LDAP, SQUID, Postfix, Send mail, FTP
• Experience in using Bug tracking tools like JIRA, Remedy, HP Quality Center and IBM Clear Quest
• Strong experience in developing scripts to improve productivity for core business platform in Python, bash and Perl
• Conduct systems design, feasibility and cost analysis to recommend cost-effective cloud solutions such as Amazon Web Services (AWS), Microsoft Azure and IBM Softlayer
• Proficient in tracing complex build problems, release issues and environment issues in a multi-component environment
• Strong team player, strategic thinker with good time management skills maintaining outstanding rapport with customers and co-workers

TECHNICAL SKILLS:

Operating Systems: MS Windows server 2003, 2008, 2012 R2, RHEL 5,6,7, Suse 9,10,1, AIX 5,6,7

Virtualization: vSphere, VMware View 4/5.0, ESX 3.x,4.x, 5.x, vCenter 4.0,5.0, Update Manager, HA, DRS, vMotion, SVMotion, and SRM

Database: Oracle 11g/10g and 9i, SQL 2005 and Enterprise

Languages: Java, J2EE, Selenium

Scripting Languages: PERL, Ruby, Python, Shell, PHP

Web/App Servers: Web logic, Web Sphere, Apache Tomcat, JBOSS

Bug Tracking Tools: Jira, Remedy, HP Quality Center, IBM Clear Quest

DevOps / Cloud Computing: AWS, Azure, Softlayer, Puppet, Chef, Ansible, Docker

Build & CI Tools: ANT, Maven, Hudson/Jenkins, Lara, Cruise Control, Artifactory, Bamboo, Nexus

SCM Tools: CVS, SVN, ClearCase, GitHub, Perforce

PROFESSIONAL EXPERIENCE:

Confidential, Milwaukee, WI

Linux/DevOps Engineer

Responsibilities:

• Installed, Configured and Maintained RedHat Linux (RedHat Enterprise Linux 5.x, 6.x, 7.x) Servers and Windows 2003/ 2008 R2/2012 Servers on Power Edge Model rack, HP blade centers like HP C6000 & C7000 and also Cisco UCS environment
• Involved in Architect, build and maintain Highly Available secure multi-zone AWScloud infrastructure utilizing Chef with AWS, CloudFormation and Jenkins for CI/CD
• Performed Restack migrations for RHEL Servers supporting Middleware applications such as WebLogic and Jboss from Physical servers to Virtual Machines in the VMware Infrastructure
• Managed the hosts and Clusters using the Cisco UCS Manager and Capacity planning
• Install, configure, maintain Linux servers NIS, DNS, NFS, Mailing List, Sendmail, apache, FTP
• Created monitors, alarms and notifications for EC2 hosts using Cloud Watch.
• Design & implemented VPC service for extension of customer's on-premises datacenter with AWS Cloud using AWSVPC and VPN& Direct connect services.
• Implemented and maintained Chef Configuration management spanning several environments in VMware and the AWScloud.
• Launching Amazon EC2 Cloud Instances using Amazon Images (Linux/Ubuntu) and Configuring launched instances with respect to specific applications.
• Hands on with Puppet Manifest files to deploy automated tasks to many servers at once.
• Performing Manifests to update the Puppet agent using Puppet Master.
• Experience in Creating secured cloud infra using (VPC) for Staging and Development environment on AWS
• Managed Elasticsearch clusters and PostgreSQLreplication
• Experienced in using advanced PostgreSQL/MYSQLfeatures like table partitioning and different types of oracle indexing
• Extensively worked on Hudson, Jenkins, Lara and Bamboofor continuous integration and for End to End automation for all buildand deployments
• Scripting experience in Python, PHP, Bash, PowerShell, Groovy for automation purpose.
• Written Chef Cookbook, recipes to automate installation of Middleware Infrastructure like Apache Tomcat, JDK and configuration tasks for new environments etc
• Experience working on several Dockercomponents like DockerEngine, Hub, Machine, Compose and Docker Registry
• Experience working on Docker hub, creating Dockerimages and handling multiple images primarily for middleware installations and domain configurations
• Worked on Dockercontainer snapshots, attaching to a running container, removing images, managing Directory structures and managing containers
• Installed Jenkins on a Linux machine and created a master and slave configuration to implement multiple parallel builds through a build farm
• Manual Installation and configuration of Weblogin, Tomcat and Apache servers
• Installed, administered, updated/upgraded ESX/ESXi servers, Virtual Center servers and virtual machines using VMware Update manager and VMtools
• Set up V-Motion, High Availability (HA), Distributed Resource Scheduler (DRS), and related VMware products such as VM Workstation
• Managed ESXi hosts using vCenter Server/ vSphere Client and VMware Web Client.
• Performed vMotion and Storage vMotion of Virtual Machines across different cluster with respect to security policies and application development requirements
• Creation of hot and cold Clones, Server Templates from Virtual Machines (VMs). Deployed Virtual Machines from Templates based on requirements and build documents
• Performed Virtual Machine Snapshots for Application machines for Migrations and failback.
• Experience with creating Standard vSwitches(vSS), Distributed vSwitches(vDS). Isolated networks were created with separate vSwitches and VMkernel Port Groups
• Third party tools such as Wireshark packet capturing tool were used for network traffic monitoring, vMotion, storage and Fault-Tolerance (FT) security and stability

Environment: Linux, Jenkins, Hudson, Lara, Bamboo, Docker, GIT, Weblogin Server, Tomcat Server, Apache Server, Python, PHP, Shell, PostgreSQL, Chef, Puppet, AWS, VPC, VM's, AWSCloudFormation, EC2

Confidential, Pittsburg, PA

Linux Automation Engineer

Responsibilities:

• Built virtualized Linux servers on ESX and Blade servers to host multiple applications on same chassis across different hosts. Set up Linux servers for iSCSI LUN boot instead of local hard disks
• Created File systems from local storage as well as NFS partitions for application portability
• Maintained Puppet-based config management in operational and production environments
• Implemented AWS solutions using EC2, S3, RDS, EBS, Elastic Load Balancer, Auto scaling groups
• Installed, configured, and maintained WebLogic 10.x and Oracle 10g on AIX & Redhat Linux
• Monitored Linux servers for CPU Utilization, Memory Utilization, and Disk Utilization for performance issues using Nagios
• Capturing the image of production server, Configuring RAID and build the new server using the image on system imager server with PXE boot
• Performing software installations and updating YUM Repository and Redhat Package Manager (RPM) using Satellite servers
• Configuring native and vendor multipath, adding SAN and creating physical volumes, volume groups, logical volumes
• Installed, configured and supported Apache and Tomcat on Linux production servers
• Troubleshooting Linux network, security related issues, capturing packets using tools such as IPtables, firewall, TCP wrappers, NMAP
• Preparing servers for Oracle RAC installation which includes tuning the kernel, agent installation, adding NAS storage
• Configured Elastic Load Balancers with EC2 Auto scaling groups
• Extensive knowledge in DNS, DHCP and IP Addressing. Optimized volumes and EC2 instances
• Worked with Redhat Satellite Servers using Kickstart Mechanism
• Implemented Firewall rules for new servers to enable communication with application
• Improved the System Performance by resolving DNS Issues of F5 Load Balancer’s
• Monitored server and application performance & tuning via various stat commands top, vmstat, nfsstat, iostat, tuned I/O, memory, etc.
• Configured volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager (LVM)
• Coordinated with the Storage, Network and Hardware teams on server provisions (HP Proliant DL385/585 G5, G6 servers, and HP BL blade centers)
• Experience in supporting database systems including Oracle, MYSQL, PostgreSQLon Linuxand Solaris Environment
• Created scripts in Python which integrated with Amazon API to control instance operations.
• Deployed Puppet, Puppet dashboard for configuration management to existing infrastructure
• Used Puppet to manage Web Applications, Configuration Files, Data Base, Commands, User’s Mount points, Packages
• Used Subversion as source code repositories and Managed SVN repositories for branching, merging, and tagging
• Analyze and resolve conflicts related to merging of source code for GIT
• Implemented the setup for Master slave architecture to improve the Performance of Jenkins
• Used Jenkins for Continuous Integration and deployment into Tomcat Application Server

Environment: Java/J2EE, ANT, Maven, Subversion, Puppet, Chef, Ansible, Saltstack, Linux, AWS, PostgreSQL, Shell, Perl Scripts, Python, Groovy, GIT, Ruby, Jenkins, Bamboo, Tomcat, Jira

Confidential, Andover, MA

Linux System Engineer

Responsibilities:

• Built and deployed new VM's and installing different guest OS like Windows server 2003/2008/2012 and Linux
• Day to day duties for Unix/Linux server maintenance and support to developer's team for their issues with application, tuning, troubleshooting, software running on Unix/Linux Servers
• Administered Linux servers for several functions including managing Apache/Tomcat server, mail server, My-SQL database, and firewalls in both development and production
• Strong experience in supporting IBM-AIX. Also supported RHEL and SUSE server environments
• Experienced in installation, configuration, tuning, security, backup, recovery and upgrades of IBM AIX
• Leveraged VMware infrastructure implementation and consolidation expertise to implement P2V migrations, blade server capacity planning, high availability and failover settings on newly installed blade servers and existing rack mount servers
• Designed, installed, configured of VMware site recovery manger
• Worked with server profile/service profiles on CISCO UCS, HP Servers
• Creating virtual NIC's for the respective VM's and assigning the network connections to a particular port group in the VSwitches
• Configured Management and Resource Cluster, Add Host to a Cluster, Configure its licenses, Network Configuration, DNS and NTP. Worked with service now, remedy
• Administration of environment running ESX/ESXi Hosts and Virtual Machines
• Manage Virtual Machines, Installing VMware Tools, Creating Templates, Cloning, and Deploy Virtual Machines using Templates, Converting Physical to Virtual Machines (P2V)
• Manage VMware Distributed Resource Scheduler (DRS), vMotion and High Availability (HA) Clusters
• Worked closely with Storage and Networking teams to manage the allocated SAN, Fiber and Networking Infrastructure
• Update the Patches for ESX Servers using VMware Update Manager in Virtual Center
• Monitor capacity, performance and utilization across all Windows Server and its Hardware
• Implemented tool integrations with puppet for automatic monitoring of servers known to puppet
• Skilled with WebSphere, Tomcat and Apache Web & Application Servers
• Setup automation tools such as Jenkins and Nexus across multiple projects of waterfall and Agile models
• Leveraged Groovy scriptler interface to automate the job creation process for different releases.
• Handled end-to-end deployments and code propagations across different environments, DEV to PROD, for two projects and their respective five components
• Spontaneous issue resolves by engaging Weblogic Admins, DBA’s, Dev’s and test teams and played a central point of contact role. Provided 24*7 support on call
• Deployed code on Web Logic servers for Production, IT, Performance and Development environments using ANT scripts. Making DB deployments thru Oracle SQL, MS SQL
• Handled various configuration changes for different application files and weblogic changes
• Engaged with SA’s to upgrade multiple environments with various releases

Environment: Maven, Ant, Oracle WebLogic, Jenkins, Subversion, Nexus, Shell Scripting, Python, Perl, Ansible, AWS, Hotfix PROD Patches, Linux RHEL 5,6,7, Suse 9,10,1, AIX 5,6,7

Confidential, Marlborough, MA

Linux System Engineer

Responsibilities:

• Installation, configuration and troubleshooting of RHEL and Suse Linux
• Installing and configuring RUN LEVELS, DNS, DHCP, SAMBA, APACHE, SENDMAIL, FTP, SQUID, Veritas Volume Manager, RAID and TELNET
• Troubleshooting issues like boating, RPM packages, User management and backup.
• Involved in IP bonding for load balancing and fail over, Firewall, SELINUX
• Hosting and securing web pages using Apache (httpd) web server and ssl
• Installing and configuring the DNS, DHCP servers and assigning IP addresses to client hosts.
• Integrating with Linux domain and windows clients using Samba server
• Maintained, configured and implemented Squid Proxy Server, Bind 9 Web servers (APACHE)
• Configured and implemented LINUX Kernel re-compilation and Implementing file integrity check tools like Tripwire
• Involved in Creating, deploying and managing Linux and windows VM using RedHat Enterprise Virtualization Manager, which includes moving and migrating VM from one cluster to another cluster or within the same cluster
• Configured Win-bind on all Linux workstations which enables all the Linux users to be authenticated on Microsoft Windows Active Directory Server
• Installed and configured RedHat Cluster with GFS2 file systems. Managed the ext3 and ext4 file systems using Logical Volume Manager LVM
• Installed and configured ESXi 4.0, 4.1 Servers on Blade servers
• Performing VMware crash/error analysis, Root cause Analysis, Coordinate Post Problem Analysis and Trend Analysis
• Jumpstart & Kick-start OS and LDAP integration
• Performed daily system administration tasks like managing system resources, writing scripts, LVM management and end users support, manage operations and security issues
• Configured SSH, Managed Logical volumes, file systems, paging space issues
• Involved in configuring of NFS. Troubleshooting the system and end user issues
• Worked on Solaris volume manager to create file systems as per user and database requirements
• Installed, configured and managed VMware ESXI and Virtual Center
• Performed routine checks on nodes by monitoring syslogs and error logs for system and hardware errors
• Managed mksysb backups, worked with backup team on data migration and disaster recovery related issues
• Replaced system disks, installed network adapters and configured Ether channel
• Document solutions for any issues that have not been discovered previously
• Setting up Monitoring for all prod and dev servers at different sites which included installation and configuration of Nagios NRPE and addition of new hosts and services to them
• Installed & configured file servers like NFS & FTP for remote sites
• Created user accounts on application servers & internal application tools, providing access to files on file servers
• Analyzed and created daily reports on the status of server backups on intranet and extranet

Environment: RHEL 5,6,7, Suse 9,10,1, AIX 5,6,7, VMware ESX, Virtual Center, ClearCase, Eclipse, Ant, Maven, Hudson, Nagios, WebSphere Application Server (WAS), CVS, Cruise Control

Confidential, Charlotte, NC

AIX System admin

Responsibilities:

• Built, administered, monitored and maintained IBM AIX 5.1, 5.2, 5.3, RHEL 4.x/5.x, Windows 2000/2003 servers on P-Series, confidential and  confidential hardware platforms
• Worked with DBAs to configure File Systems, users and group for Oracle Database on AIX servers and performed health check on various instance type from prod to dev and test
• Add, remove and resizing Logical volumes using LVM in Linux and implementing software RAID at installation time
• Defined/setup network protocols, Network File Services (NFS), and Network Information Services (NIS) in Linux and AIX systems
• Configuring Virtual Machines under VMware ESX Servers to install Linux guests
• Maintenance, technology level upgrades and software administration on AIX & RPM installation on Linux using up2date and yum
• Monitored system performance using tools like Tivoli End Point, Concord and BMC patrol.
• Provisioned & Initialized LUNs in clustered & standalone environments
• Administered Linux servers for several functions including managing Apache/Tomcat server, mail server, My-SQL database, and firewalls in both development and production
• Implementation and Management of Disk Quota on Linux as well as NetApp filers
• Implementation of SSH for secure transfers and implementation of PKI between servers to enable password less logins between Servers
• User group management and security policy management for the all servers including windows and UNIX. Responsible for defining special user privileges using Sudo
• Configured and administered Apache web server and Jboss for web applications.
• Performed OS and kernel upgrades on AIX and Linux servers
• Installed, configured and deployed applications on Web logic Application Server 8.x, 9.x.
• Diagnosed hardware and software problems using DIAG, ERRPT, NMON and TOPAS
• Manage systems using remote consoles like ILO for HP Hardware and HMC for IBM P-Series
• Troubleshoot backup issues, Perform manual backups & restore on VERITAS Net Backup
• Document and maintain the inventory using asset management techniques
• Supporting servers on 24x7 Basis on different platforms

Environment: AIX 5.3, 6.1, HACMP 5.4. Linux and windows NT 4.0 /2000.150 IBM p-Series