SUMMARY

• IT Professional as a Sr. Cloud/DevOps Engineer with 8+ years of experience in managing server infrastructures and involving administration of mission critical, high availability environments.
• Expertise in Linux System Administration, Software Development Life Cycle (SDLC), Build and Release Management, Configuration Management, Continuous Integration, Continuous Deployment and Cloud Implementations.
• Extensive experience in setting up the enterprise infrastructure on cloud platforms like Aws, Azure, Open Stack & Pivotal Cloud Foundry (PCF).
• Expertise in AWSCloud Administration with AWS stack EC2, EBS, IAM, S3, ELB, RDS, VPC, ROUTE 53, Ops Works, Cloud Watch, Kinesis, KMS, Cloud Formation and Terraform Templates, Auto scaling groups (ASG), Lambda, EMR, RedShift etc.
• Expertise in Azure Development, worked on Azure web application, App services, Azure storage, Azure SQL Database, Virtual Machines, Fabric controller, Azure AD, Azure search, and Notification hub.
• Experience in working with OpenStack services such as Nova and Glance, Swift, Keystone, Heat, and Ceilometer.
• Extensive experience in configuring PCF components OAuth2 server and login server, Cloud Controller, nsync, BBS, Cell Rep, Blobstore, Diego Cell.
• Exposed to all aspects of Software Development Life Cycle (SDLC) such as Analysis, Design, Implementation, and Testing.
• Experience in Virtualization technologies like VMWare, Vagrant and worked with containerizing applications like Docker, Kubernetes.
• Production experience in supporting Chef Environment with 500+ servers and expertise in developing Chef Cookbooks, Puppet modules & Ansible Playbooks to manage systems configuration.
• Proficient in creating infrastructure in a coded manner (infrastructure as code) using Chef, Puppet & Ansible for configuration management of virtual environment and Vagrant for virtual machine and resource control.
• Experience with container - based deployments using Docker; working with Docker files, Docker images, Docker Hub and Docker registries and Kubernetes.
• Extensively worked with architectural changes to move software system offerings to a distributed, service-based architecture utilizing Docker & Kubernetes technologies.
• Expert in creating fully automated CI/CD build and deployment infrastructure using Jira, Git, Bit Bucket, Jenkins (CloudBees), Bamboo, Sonar Qube, VMWare, RHEL, Docker, Kubernetes, ANT, Maven, Artifactory, Chef, Ansible.
• Proficient in all areas of Jenkins including setting up CI for new branches, build automation, plugin management and securing Jenkins and setting up master/slave configurations.
• Experience with Version Control Systems like GIT, CVS, SVN (Subversion), and a good understanding of other tools like Bitbucket, Perforce, TFS and IBM Bluemix.
• Deployed and configured Elastic search, Log stash and Kibana (ELK) for log analytics, full text search, application monitoring in integration withAWSLambda and X-Ray.
• Experience with using Zabbix for network monitoring and integrated it with Oracle, PostgreSQL and MYSQL to store data.
• Expertise in scripting for automation and monitoring using Shell, Bash, PowerShell, PHP, Java, Python, YAML, Ruby and Perl scripts.
• Good scripting noledge on Pearl, Bash, Shell, Python & Developed python and shell scripts for automation of the build and release process.
• Experience in developing web applications using frameworks such as Spring, Hibernate and front-end technologies such as HTML, CSS, JavaScript, and AngularJS.
• Adept skills in working with applications developed using Object Relational Mapping frameworks like Hibernate and MVC frameworks like Struts, JSF etc., and IOC frameworks like Spring and its subsidiary modules such as Spring Boot, Spring MVC.
• Expert in deploying the code through web application servers like Web Sphere/Web Logic/ Apache Tomcat/JBoss and their installation, configuration, management and troubleshooting.
• Extensive experience in designing WebSphere Application Server, JBoss, WebLogic and developing features like High Availability, Load Balancing and Work Load Management.
• Installed, configured and managed the RDBMS databases like MySQL, DB2, PostgreSQL, and NoSQL databases like MongoDB, DynamoDB, and Cassandra DB.
• Proficient in developing Web Application in Groovy/Grails with Mongo DB as a data store.
• Experience in Load Balance Linux systems by LVS for High Performance and High Available of Linux clustering Technology.
• Extensive experience in installation and configuration of vCenter 4.x/5.x/6.x, vSphere 4.0 (Infrastructure Virtualization suite), ESX 3.0/3.5, ESXi Server, Virtual Machines and vSphere Client.
• Expertise in Working on Data Encryption (Client-Side and Server-Side) and securing data at rest and in transit for data in S3, EBS, RDS, EMR, Red Shift using Key Management Service (KMS).
• Experience in installing, configuring and troubleshooting Unix/Linux Network services and protocols like NIS, NIS+, OSPF, LDAP, DNS, NFS, DHCP, NAS, FTP, SSH and SAMBA.

TECHNICAL SKILLS

Cloud Environments: Amazon Web Services(AWS), Azure, OpenStack, Pivotal Cloud Foundry (PCF), Google Cloud Platform (GCP)

Virtualization: VMWare ESX/ESXi, Windows Hyper-V, Power VM, Virtual box, Citrix Xen

Operating Systems: Linux (Red Hat 4/5/6/7, CENTOS & SUSE), Solaris 11/10/9/8, HP-UX 11.0, 11.11, 11.23, 11.31, V1, V2 & V3, Ubuntu 12/13/14, Windows NT /2000/2003, DEBIAN.

Automation Tools: Jenkins, super market, compliance, Kitchen, chef solo, Habitat, compliance, Puppet, Ansible, Docker, Vagrant, Terraform.

Web Servers: Tomcat, APACHE 2.x, 3.x, Ngnix.

Database: Cassandra, Redis, Aerospike, Oracle MySQL, MongoDB, AWS RDS, Aurora, DynamoDB.

Scripting languages: Perl, Python, Ruby, Bash shell, Power shell scripting, Groovy, PHP, Hashi corp, JSON

Networking/Protocol: DNS, DHCP, CISCO ASA Firewalls Routers/Switches, WAN, TCP/IP, NIS, NFS, SMTP, LAN, FTP

Version Control Tools: GIT, Subversion, CVS, Bitbucket, TFS.

Monitoring Tools: Nagios, Sensu, New Relic, AppDynamics, Cloud Watch, Splunk, Jira, Nexus.

Volume Manager: VERITAS volume manager, LVM with Linux

Application Servers: Web Logic Application server 9.x, 10.x, Apache Tomcat 5.x/7.x, Red Hat JBoss 4.22. GA Web Sphere 6.x/7.x/8.x

PROFESSIONAL EXPERIENCE

Confidential, Waltham, MA

Sr.Cloud/DevOps Engineer

Responsibilities:

• Implemented Large Scale Cloud Infrastructure (250+ servers) using AWS resources (S3, EC2, ELB, EBS, Route53, VPC, Auto scaling etc.) and deployment services (OpsWorks and Cloud Formation) and security practices (IAM, Cloud watch and Cloud trail) and services Lambda, EMR, RedShift, ECS, Elastic Bean Stalk, X-ray.
• Used IAM for creating roles, users, groups and implemented MFA (Multi Factor Authentication) to provide additional security to AWS account and its resources.
• Using AWS OpsWorks to automatically spin-up API instances by running backend chef recipes.
• Identify and eliminate performance bottlenecks during Software Development Lifecycle (SDLC).
• Extensively Used Jenkins as Continuous Integration tools to deploy the Spring Boot Microservices to AWS Cloud and Pivotal Cloud Foundry (PCF) using build pack.
• Good hands-on experience with PCF Blobstore for storing and managing Application code packages & Buildpacks.
• Performed Black Box testing of API (Developed Go language) during life cycle of product release.
• Implemented Chef Recipes for Deployment on build for internal Data Centre Servers. Also, re-used and modified same Chef Recipes to create a Deployment directly into Amazon EC2 Instances.
• Developing Docker images to support Development and Testing Teams and their pipelines; distributed Jenkins, JMeter images, and Elastic Search, Log stash & Kibana (ELK).
• Configured Kubernetes Replication controllers to allow multiple pods such as Jenkins master server in multiple minions.
• Manage re-architecture of Jenkins and integration with Confluence for release management and documentation assets. Re architect a Maven based system reducing build times.
• Coordinate/assist developers with establishing and applying appropriate branching, labeling/naming conventions using GIT source control and analyzed and resolved conflicts related to merging of source code for GIT.
• Implemented Cloud Formation for AWS orchestration and SQL, Utility Optimization for Red Shift.
• Written reusable Templates for provisioning AWS infrastructure as a code using Terraform to build staging and production environments.
• Wrote python scripts using Boto3 to automatically spin up the instances in AWS EC2 and OPS Works stacks and integrated with Auto scaling to automatically spin up the servers with configured AMIs’.
• Extensively worked on writing Java API's using Amazon Lambda to manage controller layer classes in MVC architecture.
• Used Microservice architecture, with Spring Boot based services interacting through a combination of REST and leveraging AWS to build, test and deploy Identity Microservices.
• Responsible for managing more than 800 virtual servers and monitored Applications and Servers through Splunk, Web Servers Administration on Apache and Nginx.
• Optimize the NGINX/Apache/PHP/MySQL & Sysctl for better server performance.
• Experience in troubleshooting Cassandra, Redis and Aerospike Database server configurations to optimize them under heavy load situations.
• Monitoring API’s and Cassandra’s performance using New Relic, Cloud Watch and Log stash.
• Troubleshooting of network issues using DHCP, DIG, DNS, SNMP, SMTP, Ethernet, IOS, netstat, NFS, NIS, nslookup, RIP, OSPF, BGP, TCP/IP, and tcpdump.
• Provided support to release engineering teams through deployment configuration and automated codes, performed troubleshooting and problem forecasting as needed.

Environment: AWS, Pivotal Cloud Foundary (PCF), Chef, Docker, Kubernetes, Jenkins, Git, Cloud Formation, Terraform, Python, Java, MySQL, Ngnix, Apache, Cassandra, Aerospike, New Relic, ELK.

Confidential, Dallas, TX

Sr.Cloud/DevOps Engineer

Responsibilities:

• Expertise in AWS EC2/VPC/S3/SQS/SNS based automation through Terraform, Python, Bash Scripts. Adopted new features as they were released by Amazon, including ELB & EBS.
• Created automation and deployment templates for relational and non-relational databases including MS SQL, MySQL, Cassandra and MongoDB can be used in AWS RDS.
• Created AWS cloud formation templates to create custom-sized VPC, subnets, EC2 instances, ELB’s, security groups.
• Acquaintance with tagging standards for proper identification and ownership of EC2 instances and other AWS Services like Cloud Front, cloud watch, Elastic beanstalk, RDS, S3, Route53, SNS, SQS, Cloud Trail.
• Managing a team of DevOps engineers for infrastructure support on AWS cloud. Creating Cloud Formation scripts for hosting software on AWS cloud. Automating the installation of software through Power Shell scripts.
• Expertise in Azureinfrastructure management (AzureWeb Roles, Worker Roles, Azure SQL, Azure Storage, AzureAD Licenses, Office365).
• Experience in dealing with Windows AzureIaaS - Virtual Networks, Virtual Machines, Cloud Services, Resource Groups, Express Route, Traffic Manager, VPN, Load Balancing, Application Gateways, Auto-Scaling.
• Proficient in using Docker in swam mode and Kubernetes for container orchestration, by writing Docker files and setting up the automated build on Docker HUB.
• Implemented a production ready, load balanced, highly available, fault tolerant AWS infrastructure and micro service container orchestration.
• Hands on experience on Chef- Solo, compliance, habitat and super market.
• Extensive experience with Chef and OpsWorks in AWS cloud environment and implemented Chef-Kitchen on AWS and Pivotal Cloud Foundry (PCF).
• Proficient in using Ansible Tower, which provides an easy-to-use dashboard and role-based access control, so dat it is easier to allow individual teams access to use Ansible for their deployments.
• Automate the installation of ELK agent (file beat) with Ansible playbook.
• Implemented a Continuous Delivery pipeline with Docker, Jenkins, GitHub and AWS AMI’s. Whenever a new GitHub branch gets started, Jenkins server automatically attempts to build a new Docker container from it, the Docker container leverages Linux containers from the AMI baked in.
• Configuring, automating and maintaining build and deployment CI/CD tool (Jenkins), git/ git-Lab, Docker registry/daemon, Nexus and JIRA for Multi-Environment (TEST/PRE-PROD) with high degrees of standardization for both infrastructure and application stack automation in AWS cloud platform.
• Converted existing Terraform modules dat had version conflicts to utilize cloud formation during Terraform deployments to enable more control or missing capabilities.
• Deployed and configured Elastic Search, Log stash and Kibana (ELK) for log analytics, full text search, application monitoring in integration with AWSLambda and Cloud Watch. Established DevOpsculture based on Docker and Kubernetes tools.
• Automated applications and MySQL container deployment in Docker using Python and monitor them using Nagios.
• Installing, upgrading and configuring SUN Solaris 9/10 on Sun Servers using Jumpstart and Red Hat Linux5.x Servers using Kickstart.
• Created Python scripts to totally automate AWS services which includes web servers, ELB, Cloud Front distribution, database, EC2 and database security groups, S3 bucket and application configuration, dis script creates stacks, single servers, or joins web servers to stacks.
• Experience in monitoring the availability & performance of Red Hat Linux Servers through tools like mpstat, vmstat, iostat, netstat and nfsstat.
• Heavily utilized the LAMP stack (Linux, Apache, MySQL, PHP/Perl) to meet customer needs.
• Installed and configured various services like DNS, LDAP, DHCP, RPM, Send mail, Apache Web Server, Web Logic, NIS, SSH, Tomcat, Telnet, HTTP, HACMP, GPFS, SSL, NetApp, RPM Package Management and others.
• Experience in using Python packages like numpy, pandas, sklearn, selenium, scikit-learn, Boto.
• Designed and implemented the vRealizesuite and SAN/NAS implementation and management.
• Automatically spin-up API’s and database servers in each layer of the OpsWorks Stack in AWS cloud using boto3 Python scripting.

Environment: AWS, Azure, Chef, Ansible, Docker, Kubernetes, Jenkins, Git,Cloud Formation, Terraform, Python, KMS, Cassandra, MySQL, MS SQL, Mango DB, Power Shell, ELK, JIRA, Linux, vRealize, Linux.

Confidential, Dallas, TX

Cloud/DevOps Engineer

Responsibilities:

• Experience in designing, configuring and managing public cloudinfrastructures utilizing Amazon Web Services (AWS) including EC2, Auto-Scaling, high-availability, fault tolerance, in launching EC2 instances, Elastic Load Balancer, Elastic Beanstalk, S3, Glacier, cloudFront, RDS, VPC, Direct Connect, Route53, cloudWatch, cloud Formation, IAM, SNS.
• Setup and build AWS infrastructure various resources, VPC, EC2, S3, IAM, EBS, Security Group, Auto Scaling, and RDS in Cloud Formation JSON templates.
• Manage AWS EC2 instances utilizing Auto Scaling, Elastic Load Balancing and Glacier for our QA and UAT environments as well as infrastructure servers for GIT.
• Experience with OpenStackServices such as Compute, Network, Storage, Horizon, Glance, Identity, Monitoring and Orchestration Service.
• Knowledge in Implementation of horizontal auto-scaling use cases using Open Stackcomponents - Heat, Ceilometer, Lbaas.
• Deployed Zabbix to monitor and alert the health of Nova, Neutron, Keystone and other Open Stackservices.
• Integrated GIT into Jenkins to automate the code check-out process. Used Jenkins for automating Builds and Automating Deployments.
• Implemented multiple CI/CD pipelines as part of DevOpsrole for on-premises and cloud-based software using Jenkins, Chef and AWS/Docker.
• Expert in implementing continuous integration and deployment systems using Jenkins, Maven, Nexus, Anthill pro and Run deck
• Experienced in branching, tagging and maintaining the version across the environments using SCM tools like GIT, JIRA, Jenkins, Clear case, Harvest, VSS, Subversion (SVN) and TFS onLinux and windows platforms.
• Worked to setup Jenkins as a service inside the Docker swarm cluster to reduce the failover downtime to minutes and to automate the Docker containers deployment without using configuration management tool.
• Installing and configuring of Chef server, Chef-solo along with creating Chef Cookbooks and implemented latest releases of Chef- Solo, Compliance, Habitat and written Chef Recipes to install and configure Nagios for monitoring Infrastructure.
• Worked with Chef Enterprise Hosted as well as On-Premise, Installed Workstation, Bootstrapped Nodes, Wrote Recipes and Cookbooks and uploaded them to Chef-server, Managed On-site OS/Applications/Services /Packages using Chef as well as AWS for EC2/S3/Route53 & ELB with Chef Cookbooks.
• Worked with development team to migrate Ant scripts to Maven.
• Configured Subclipse (Subversion plugin for Eclipse) and trained developers to utilize its various features Extensively used Ant, Maven, Perl and Bash Scripts for automating build and release tasks.
• Experience in Monitoring tools like Nagios, Zabbix, cacti, SiteScope, AppDynamics, Splunk, Tivoli, Monit Scom, New Relic and Overops/Takipi.
• Involved in Setting up Elastic Search, Log stash and Kibana(ELK)Created AWS Multi-Factor Authentication (MFA) for instance RDP/SSH logon, worked with teams to lock down security groups.
• Created VM in Google Cloud Platform (GCP), installed Docker, Docker swarm.
• Adding/expanding new storage to existing/new systems using Logical Volume Manager (LVM), VERITAS Volume management (VVM) and Veritas File System (VxFS) on Linux/SUN servers.
• Experienced in configuration and maintenance of commonLinuxservices such as Tomcat, Apache, MySQL, Postfix, LDAP, BIND, SSH, iptables and firewall etc.
• Experience in Networking including the OSI LAYERS and protocols such as TCP/IP, NIS, DNS, NFS, FTP, DHCP, HTTP, HTTPS, SFTP & SMTP.
• Configured storage using Logical Volume Manager (LVM). Extending Volumes with LVM. Implemented RAID configuration for redundancy.
• Created Python scripts to totally automate AWS services which includes web servers, ELB, Cloud Front distribution, database, EC2 and database security groups, S3 bucket and application configuration, dis script creates stacks, single servers, or joins web servers to stacks
• Created Python scripts to automateAWS S3 data upload/download and control instance operations with AWS API.

Environment: AWS, OpenStack, Chef, Git, SVN, TFS, Jenkins, Jira, Zabbix, Docker, Ant, Maven, Nagios, New Relic, ELK, Python, Bash, Red Hat Linux.

Confidential, Raleigh, NC

DevOps Engineer

Responsibilities:

• Build new VMware ESX Server 4.x/5.x on HP HW running Red Hat Enterprise Linux & Created different virtual machines like Debian, windows 2003 & 2008 server, SuSE enterprise Linux using VMware Virtual Infrastructure Client tool and configured with EMC storage box.
• Developing build and deployment scripts using ANT and MAVEN as build tools in Jenkins to move from one environment to other environments for Continuous Integration.
• Experienced in branching, tagging, and maintaining the version control systems across the environments using SCM tools like GITHub, Subversion (SVN), Atlassian, GIT lab and TFS on Linux and windows platforms.
• Troubleshooting the SAN connectivity on different OS like Windows, Linux, VMware and Solaris.
• Wrote JUnittest cases for unit, integration, and functional tests, run automatically byHudson/Jenkinsin the builds triggered by each push to GIT.
• Experience in developing Puppet modules (blue prints) for installation, configuration and continuous integration (CI) using combination of Puppet Master, GIT, Vagrant and Jenkins/Udeploy.
• Implemented both Puppet Agent Based and Agentless Configurations, Puppet dashboards, Mcollective with activemq server, plugin-sync, stored configs, Hiera, Facter.
• Automated deployment modules of IIS web applications, bindings and configuration settings using a combination of PowerShell scripts and Puppet.
• Performing configuration management tasks on 150+ servers with the aid of Puppet Master Server and involved in writing Puppet manifests for customized configuration management.
• Experienced in monitoring system performance and check the status of the system using utilities such as SAR, VMSTAT, IOSTST, NETSAT etc.
• Deployed Mcollective for orchestration and wrote custom Mcollective plugins to deal specially with our needs.
• Installation and configuration of JBoss, Web Sphere 5.1/6.0 Application Server on Ubuntu and CentOS boxes.
• Creating and ManagingUserandGroup Administrationand Access Privilege Setting withSUDOERS onSolaris 9/10/11,RHEL 5.x/6.x, Ubuntu.
• Worked on creating the Docker containers and Docker consoles for managing the application life cycle. Worked on various Docker components like Docker Engine, Hub, Machine, Compose and Docker Registry.
• Support of Applications like Apache Tomcat and Java based applications running on Linux machines for multiple clients.
• Experienced with installation and configuration of F5, Application Security Manager (ASM) load balancers in different datacenters
• Experience in Troubleshooting Hardware, Storage, Application Bottlenecks. System Recovery, Crash dump analysis and Performance Tuning.
• Expert in Java Web Services (Both REST and SOAP), WSDL, UDDI, & SOA (Service Oriented Architecture) and has extensive noledge on RESTful APIs, Banking and Mortgage product development.
• Designed database tables for Oracle8i, Microsoft SQL Server version 7 and 2000, IBM DB2 version 6.1/7.1 and MYSQL 4.0.
• Developed custom optical system and interface circuitry for programmable LAMP (Linux, Apache, MySQL, Python/PHP).
• Configured storage using Logical Volume Manager (LVM). Extending Volumes with LVM. Implemented RAID configuration for redundancy.

Environment: Red Hat Linux 7.x, Windows, AWS, Ansible, Git, Puppet, Jenkins, WebLogic Server 11g, Load Balancers, WLST, Apache Tomcat 7.x, Terraform, Docker, Virtualization, JBoss.

Confidential

Linux Administrator

Responsibilities:

• As a Linux/Unix system maintained the various servers and also Production Support of various applications in Red Hat EnterpriseLinux, and Windows environment.
• Involved in design, configuration, installation, implementation, management, maintain and support for the Corporate Linux servers RHEL 4.x, 5.x, SLES 9, CENTOS 5.x.
• Experience in Installation, Configuration, Upgrade, Patches, and performance tuning on UNIX and system software & hardware.
• Experience in Installing, configuring and maintaining the file sharing servers like Samba, NFS, FTP and also Web Sphere & Web Logic Application Servers, Nagios.
• Experienced in configuration and maintenance of commonLinuxservices such as Tomcat, Apache, MySQL, NFS, FTP, Postfix, LDAP, DHCP, DNS BIND, HTTP, HTTPS, SSH, ip tables and firewall etc.
• Ability to handle load balancer implementations like bonding multiple interfaces into single bond in case of over load on LAN devices.
• Strong understanding in writing the automation of processes using the shell script with bash and Python
• Building servers with jumpstart using Kickstart, CD on timely basis, along with corporate wide requirements
• Administering local and remote servers on daily basis, troubleshooting and correcting errors.
• Experienced with inter networking using TCP/IP and resolving network connectivity using tools like dig, nslookup, ping.
• Monitoring of web servers and other services using Nagios monitoring tool.
• Monitored the health of the application using Nagios
• Involving and partitioning formatting disks and in filesystem management as Software RAID, LVM and VxVM.
• Installing and configuring various servers as Apache web server, HTTP server, Samba.
• Experience in RHEL Provisioning, Upgrades, Patching, Configuration and Performance Tuning in Linux environment using satellite server.
• Installed and configured various services like DNS, LDAP, DHCP, RPM, Send mail, Apache Web Server, Web Logic, NIS, SSH, Tomcat, Telnet, HTTP, HACMP, GPFS, SSL, NetApp, RPM Package Management and others.
• Performed OS installations, OS Upgrades, and Server Patching by configuring PXE and DHCP server using Kickstart Configuration and by using Red Hat Satellite server.
• Experience in creating Disk Partitions, Logical Volume Manager (LVM) and RAID.
• Debugged network connectivity issues and involved in trouble shooting activities with commands ping, trace route, tcpdump, nslookup, netstat, iostat, top.
• Developed scripts based on bash/shell, Perl to manage the critical events.

Environment: Red Hat Linux 5/6.x, Windows 2008R2, WebLogic Server 11g, RAID, LVM, Web Sphere, Load Balancers, WLST, Apache Tomcat 5.5, Kickstart.

Confidential

Linux Systems Administrator

Responsibilities:

• Worked with Blade Chassis Enclosure HP with BL460c, BL680c, BL485c, BL420c servers for the installation of RHEL, OEL, CentOS 4.x, 5.x,6.x,7.x and VMware ESX 3.5 & 4.0, 5.0. 5.5 and 6.0.
• Extensively worked on BEA Web Logic 8i/9i Server, JBoss EAP 4.x/5.x/6.x Server, Apache HTTP and Apache Tomcat 6.x/7.x/8.x Server as an Administrator for Server Installations, Configuration, deployment, Performance, tuning including troubleshooting and maintenance.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Strong working noledge of Routers and Switches, VLAN, TCP/IP, VPN, OSI model, Firewall (checkpoint), VOIP.
• Installed and configured various services like DNS, LDAP, DHCP, RPM, Send mail, Apache Web Server, Web Logic, NIS, SSH, Tomcat, Telnet, HTTP, HACMP, GPFS, SSL, NetApp, RPM Package Management and others.
• Installed, configured and administered Apache 2.3.x and Apache Tomcat 5.5/6.0 on Red Hat 6.2
• Involved in designing Firewall rules for new servers to enable communication with application, Oracle 10g servers.
• Performed OS installations, OS Upgrades, and Server Patching by configuring PXE and DHCP server using Kickstart Configuration and by using Red Hat Satellite server.
• Installs, upgrades and manages packages via RPM and YUM package management
• Installs Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
• Involved in helping others LinuxAdministrators to deployed Splunk in a Linuxand windows environment
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.

Environment: Red Hat Linux 5/6.x, Windows 2008R2, WebLogic Server 11g, RAID, LVM, Web Sphere, Load Balancers, WLST, Apache Tomcat 5.5, Kickstart.