SUMMARY

• Over 10+ years of experience specialized in System Administration, Cloud computing and Application Support working on RedHat Linux, IBM AIX, Sun Solaris, and HP - UX, Windows and AWS cloud environments.
• Worked on Configuration Management, Continuous Integration, Continuous Deployment, Release Management and Cloud Implementations.
• Experienced working on the DevOps environment with various tools like Puppet, GIT, Jenkins, CircleCI.
• Exposed to all aspects of the software development life cycle (SDLC) such as Analysis, Planning, Developing, Testing and Implementing and Post-production analysis of the projects.
• Experience in installation, configuration, backup, recovery, and maintenance, Support of RedHat Linux, HP, Solaris and IBM AIX.
• Experience deploying, maintaining, and operating applications deployed in cloud instances.
• Experience in migration from Physical to Cloud, Physical to Virtual.
• Experience in scripting with Python, Bash and Shell; Cloud platforms, such as AWS;
• Working with VMware, configuration of ESXi host and VIO Server.
• Automated, configured and deployed instances on AWS cloud environments and in Data centers.
• Designed roles and groups for users and resources using AWS Identity Access Management.
• AWS- EC2, VPC, S3, Route53, Amazon RDS, ELB (elastic load balancer), IAM, ElasticCache.
• Experience in configuring Cloudwatch alarm on AWS resources such as EC2, RDS, Lambda and setting SNS topics to send alert notification.
• Experience in writing deploy hooks/scripts for codedeploy to deploy code from Git using CircleCI to AWS EC2 instances and also have written multiple Jenkins jobs in bash.
• Worked on OS migrations, upgrade and BIOS and NIC firmware upgrades.
• Experience installing and configuring Puppet for Automation of Linux and Unix servers.
• Experience working on Source Control Management system like SVN and GIT.
• Implemented day-to-day tasks in RedHat Linux include upgrading rpms, kernel, HBA driver, configure SAN Disks, multipathing and LVM file system.
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in RedHat Linux, IBM AIX and Solaris.
• Experience in configuration of NIS, NIS+, LDAP, DNS, DHCP, NFS, LDAP, automount, SAMBA, sendmail, FTP, remote access, Active Directory, Security management and Security trouble shooting skills.
• Experience in writing shell scripts to automate the administrative tasks and management using cron.
• Excellent communicative, interpersonal, intuitive, analysis and leadership skills with ability to work efficiently in both independent and team work environments.

TECHNICAL SKILLS

OPERATING SYSTEMS: Linux (Red Hat 3.x, 4.x, 5.x, 6.x, SUSE 10, Cent OS), IBM AIX 6.1, 5L (5.1, 5.2, 5.3), Sun Solaris 8.0, 9.0, 10.0, Windows 2000/NT5.0, Windows 95/98/ME/XP, Vista, 2007, VMware ESX 2.x, 3.x, 4.x.

HARDWARE: IBM RS/6000, P Series 520, 550, 570, 575, 590, 595, 630, 650, 670, M80, S80, H70 and H80, IBM ESS (Enterprise Storage Server), DS8000, IBM 3494, 3583 Automated Tape Library, Brocade, SUN Enterprise 450, Sun Fire 4500, V880, V480, E420R, E450, E250, HP DL 380s and 580s, EMC Symmetrix, Hitachi arrays, Backup Devices, Ethernet Hubs, Routers, Repeaters, Jukebox, Printers DELL PowerEdge 1650,2850,2950,6400.

PROGRAMMING LANGUAGES: C, C++, Java, Servlets, Jsp, EJB, VB, JavaScript, HTML, Perl and Shell programming.

WEB/APPLICATION SERVERS: Apache Server, Tomcat 4.x/5.x/6.x, JBoss 4.0.x/4.2.x, WebSphere Application Server 4.x,5.x,6.x,7.x WebLogic Server, HTML, DHTML, XML.

APPLICATIONS: HACMP, Samba, Tivoli (TSM), Nagios, Veritas NetBackup, Veritas Volume Manager, LVM, EMC PowerPath, Cloudfare, wordpress

NETWORKING: TCP/IP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP/TFTP.

DEVOPS: Puppet, Jenkins, SVN, GIT, Vagrant, AWS, CircleCI, JIRA, Docker

PROFESSIONAL EXPERIENCE

Confidential

Sr. Systme Engineer/DevOps (SME)

Responsibilities:

• Supported AWS cloud instance such as management & configuration of various AWS products.
• Responsible for managing RedHat Linux, Ubuntu production and development environment servers
• Executed routine tasks in Ubuntu/Red hat linux that include upgrading rpms, kernel, configuring SAN Disks, multipathing and LVM file system.
• Worked on OS upgrade on Ubuntu and RHEL linux server.
• Installation configuration and Administration of Sendmail on Linux.
• Managing systems routine backup, scheduling jobs like disabling and enabling cron jobs, enabling system logging, network logging of servers for maintenance, performance tuning, testing.
• Worked on AWS in creation of Autoscaling Group and lunch configuration.
• Experience in writing deploy hooks/scripts for codedeploy to deploy code from Git using CircleCI to AWS EC2 instances and also have written multiple Jenkins jobs in bash
• Supported cloud migration activities. (Migration of Dubli network to Confidential )
• Use Multi Factor Authentication to secure the AWS Account.
• Created and hardened an Amazon Machine Image (AMI) and installed google authenticator.
• Created OS image from Amazon Linux, RedHat Linux and Ubuntu Linux and build multiple servers as per the project requirements.
• Updated AMI with latest patches.
• Troubleshoot and fix any issues related to system.
• Installed apache webserver and hosted it as a proxy server for the frontend webserver.
• Installed and maintained ftp servers for commission junction recon process for file transfer from vendor and automated the upload to S3 bucket.
• Set up Virtual Private Clouds (VPCs) for Dev, Stage, and Production environments with customer operational requirements and parameters (e.g., internet gateway, subnets, elastic IP, and Security Groups).
• Went through Knowledge Transition period and co-ordinate with offshore team for KT.
• Worked on AWS cloud computing platforms and its versatile scalability such as VPC, VPN, EC2, ELB, IAM, S3, auto scaling, codedeploy, RDS, Lambda, redis memcache, custom monitoring with cloud watch.
• Managed deployment using IAAS service providers such as AWS.
• Implemented a Continuous Delivery pipeline with, Jenkins and GitHub and AWS AMI.
• Testing and deployment automation using CircleCI, Jenkins.
• Performed all the Linux operating system management, patch management, configuration management on the Linux instances in AWS
• Created Snapshot of the Linux instances and AMI and troubleshoot the instances problem by attaching it to new instances.
• Created SSL cert and installed it in Elastic load balancer.
• Installed, configured and maintained puppet enterprise in AWS EC2 instances.
• Worked on puppet for package management and post build configuration changes.
• Worked on cloudflare for DNS management.
• Worked on CircleCI for continuous integration of the code deployment from Github to AWS EC2 instances.
• Installed Jenkins on AWS EC2 instance and configured to run all the application cron jobs to run through Jenkins server.
• Installed and configured nagios server to setup RDS DB monitoring.
• Installed WordPress on AWS EC2 instance and setup blog on the server and also exported data from existing WordPress server to new server.
• Experience in Atlassian products such as Jira, Hipchat, trello.
• Created SOP documents as per current environments and publish for the support.
• Production environment support.

ENVIRONMENT: AWS, Cloudfare, Github, Red Hat Enterprise Linux 6.X, 7.X, Ubuntu 12.04, 14.04, Circle CI, MySQL, nodeJS, Jira, Jenkins, GIT

Confidential

Sr. Systems Engineer/DevOps/Cloud Consultant (SME)

Responsibilities:

• Went through Knowledge Transition period and co-ordinated with offshore team for KT.
• Created SOP documents as per current environments and publish for the support.
• Production environment support.
• Supported AWS cloud instance which included management and configuration of various AWS services.
• Worked on creating EC2 instances, updating security group and IAM policies.
• Created S3 bucket ad updated the bucket policies, versioning and lifecycle. Setup static web content on S3 bucket.
• Setup cloudwatch logs on AWS resources.
• Created and setup VPC, IGW, subnets and Route table on AWS and set up VPC peering.
• Worked on RHEL VM build using VM deployment, cloning method and worked on perform post build activities as per the environment.
• Executed routine tasks in Red Hat Linux VM that include upgrading rpms, kernel, and LVM file system.
• Installed and maintained physical as well as virtual RedHat Linux servers (RHEL 7.X, 6.X, 5.X, 4.X) based on project requirements.
• Worked with vendor to configure RHN satellite server for package installation and patching.
• Created users, manage user permissions, maintain User & File System quota on Redhat Linux and AIX.
• Configured XFS, EXT4 EXT3 file system on SAN disks as well as virtual servers
• Working with various DevOps tools such as GIT, Maven, Jenkins
• Involved in installing Puppet client on Red hat servers.
• Assisted developers to apply/establish labeling conventions with GIT source control.
• Responsible for maintaining and managing cloud environment.
• Worked on OS upgrade from RHEL 5 to RHEL 6.
• Post build configurations, checks, updating, security checks, file systems, permissions and packages.
• Worked on Automation project to create script for patching and server monitoring
• Worked on RHEL VM build using VM deployment, cloning method and worked on perform post build activities as per the environment.
• Installed and maintained physical as well as virtual RedHat Linux servers (RHEL 7.X, 6.X, 5.X, 4.X) based on project requirements.
• Worked with vendor to configure RHN satellite server for package installation and patching.
• Work on collection of data and ensure everything planned and documented so other team members can use it during their support hours
• Created users, manage user permissions, maintain User & File System quota on Redhat Linux and AIX

ENVIRONMENT: HP ProLiant DL580 and DL380, IBM P Series, IBM XIV, Puppet, GIT, Maven, Jenkins Logical Volume Manager, HACMP with EMC, SAN Multipathing (MPIO, HDLM, Powerpath), VM ESX 5.x, RHEL 7.X/6.X/5.x/4.x, AIX 7.X, 6.X, 5.X

Confidential

SR. SYSTEM Engineer (Project Lead)

RESPONSIBILITIES:

• Executed routine tasks in Red Hat Linux that include upgrading rpms, kernel, configuring SAN Disks, multipathing and LVM file system.
• Developed Kick start file to create the Template for server deployment, and build 500+ servers as per requirement given by application team.
• Installed and maintaining physical as well as virtual RedHat Linux servers (RHEL 6.X, 5.X, 4.X) based on project requirements.
• Installing RedHat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Configured LDAP based authentication on the RedHat Physical and virtual servers.
• Perform Host Based Storage migration to migrate the data from clarion to Vmax 1414 on standalone server, RedHat cluster, GFS cluster and HP service guard cluster.
• Created script to find out wwf files, sudo access and write access for developers and remediated as per SOX SOD compliance
• Installed and configured Avamar and netbackup agent on the servers working with backup team.
• Worked on generating RHN channels for PCI patching and patched around 600 PCI servers working with offshore team.
• Worked on P2V migration, migrating from RedHat Physical server to RedHat virtual server and created Pre, Post build and Validation script to automate the P2V.
• Created, deployed, and managed complex, fine-grained access control policies to ensure only authorized privileged users are getting at your most sensitive data and applications.
• Worked on generating RHN channels for PCI patching and patched around 600 PCI servers working with offshore team.
• Installed encase, Tripwire, And Antivirus on the server for security purposes and installed HPOV for the server monitoring.
• Registered the server on CMDB and created the change to implement the changes on production environment.
• Installed kernel patches and updating hardware firmware to bring the stability to the hardware.
• Installed and configured puppet enterprise on red hat server and created modules and manifests to complete various task like patching, configuration file changes.
• Used Jenkins as a continuous integration tool
• Used Git as a source control for code repositories and used Jenkins as a continuous integration tool to integrate any code changes by a developer to the dev/test/staging environment.
• Deployed and performed Smoke-Test on the application into all Dev/QA environments, as well as in Production and DR environments, on internally-hosted systems, as well as cloud hosting (AWS).
• Manage AWS environments, including creating new instances,
• Setting up instruments on AWS direct connect, creating dev, staging and production environments.
• Manage and coordinate software release process in AWS and on Hospital Applications. Maintain databases (Aurora, SQL, ORACLE).
• Attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment as per change management policy.
• Mentored and trained other offshore members of the team in various technologies.
• Modified systemconfigurationfiles (such as network settings, kernel parameters, service configuration files, cron)
• Monitored the server’s performance and status during holiday support period using HPOV tools. Provided Production support as a part of Holliday.
• Installed and updated the VMware tools on the new build servers.
• Performed BIOS and FIRMWARE Upgrade on HP hardware.
• Monitored servers, switches, and ports with Nagios monitoring tool.

ENVIRONMENT: Red Hat Linux 4.9, 5.7, 5.8, 5.9, 6.3 and 6.4 AS ES, HP-DL585, HACMP 5.5,4.2.x,4.3,4.3.1,4.4, AWS, Puppet, GIT, JIRA, Jenkins, SAN Storage, 4.5.5, IBM-z/VM, Oracle 9i/10g, Samba, NT/2000 Server, Websphere, Java,Web Logic 8.1, Puppet, GIT, VMware ESX 2.x, LPAR, DLPAR, Tomcat 3.x,4.x,5.x,6.x Apache Server 1.x,2.x, Korn, Bash.

Confidential, CHICAGO, IL

SR. SYSTEM ADMINISTRATOR/ENGINEER

RESPONSIBILITIES:

• Administered, maintained Red Hat 5.0, 6.0, operating system, applications & network problems and performance issues.
• Deployed latest patches for Linux & Application servers, performed Red Hat Linux Kernel Tuning.
• Implemented day-to-day tasks in Red Hat Linux that include upgrading rpms, kernel, configuring SAN Disks, multipathing and LVM file system.
• Created users, manage user permissions, maintain User & File System quota on Red Hat Linux.
• Migrated database applications from RHEL 3.X, 4.X, SUSE Linux to RHEL 6.3, 6.4 server.
• Engineered, Build and managed over 300 Linux Servers (RHEL 6.3 and 6.4) for migration of various applications.
• Successfully expanded and shrunk ext3, ext4 and GPFS file systems.
• Utilized Linux LVM for flexibility with respect to file system and storage management.
• Performed Qualys security scans against newly provisioned Linux servers for auditing purposes
• Manage UNIX users from Microsoft Active Directory (AD) using The UNIX Authentication Broker (UNAB) feature in CA Access Control.
• Created, deployed, and managed complex, fine-grained access control policies to ensure only authorized privileged users are getting at your most sensitive data and applications
• Edited systemconfigurationfiles (such as network settings, kernel parameters, service configuration files, cron)
• Assisted with daily TSM (Tivoli Storage Manager) operations which will include restores, backups, new client additions and missed/failed reports.
• Worked with security team to make systems PCI complaint.
• Remediated any vulnerabilities related to PCI compliance and worked on exceptions, if any.
• Deployed new operating systems (based on approved standards) and associated system tools(configure new operating systems per design specifications).
• Updated scripts based on system changes and deploy/upgraded firmware.
• Upgraded systems and associated system tools and apply patches to systems and associated system tools and updated scripts based on system changes.
• Implemented virtualization using VMware in Linux on HP-DL585 and IBM-z/VM series.
• Patched Linux kernel, memory upgrades and swaps area
• Installed and configured NSM monitoring tool to monitor servers.
• Worked on blade logic management console to provision Red Hat enterprise Linux servers in physical and VMware environments.
• Developed Korn and Bash shell-scripts to automate routine activities
• Installed and set up Blade logic software for server automation.
• Managed systems using remote consoles like ILO for HP Hardware and HMC for IBM P-Series
• Setup Network File Services (NFS), and Network Information Services (NIS) in Linux and AIX systems
• Network trouble shooting using ‘ndd’, 'traceroute', 'netstat', 'ifconfig' and 'snoop' ‘nmon’ etc
• Capacity Planning, Infrastructure design and ordering systems.
• Worked with DBAs on installation of RDBMS database, restoration and log generation.
• Mentored and trained other offshore members of the team in various technologies
• Defined standards for the engineering team to follow while designing new solutions for easier supportby the operations team

ENVIRONMENT: Red Hat Linux 5.0,6.0 AS ES, AIX 6.1,4.3,5.1,5.2,5.3, HP-DL585, HACMP 5.5,4.2.x,4.3,4.3.1,4.4, Veritas Netbackup, SAN Storage, 4.5.5, IBM-z/VM, Oracle 9i/10g, Samba, NT/2000 Server, Websphere,Web Logic 8.1, VMware ESX 2.x, LPAR, DLPAR, Tomcat 3.x,4.x,5.x,6.x Apache Server 1.x,2.x, Korn, Bash.

Confidential, Denver, CO

System Administrator/Engineer

RESPONSIBILITIES:

• Administered, maintained Red Hat 5.0, 6.0 AS, ES, troubleshooting hardware, operating system, applications & network problems and performance issues
• Deployed latest patches for, Linux and Application servers, performed Red Hat Linux Kernel Tuning
• Installed and configured z Linux on IBM mainframes servers
• Install and configure DHCP, DNS (BIND, MS), web (Apache, IIS), mail (SMTP, IMAP, POP3), and file servers on AIX and Linux servers
• Migrated database applications from Windows 2000 Server to Linux server
• Implemented virtualization using VMware in Linux on HP-DL585 and IBM-z/VM series.
• Linux kernel, memory upgrades and swaps area and performed Red hat Linux Kickstart installations
• Implemented day-to-day tasks in RedHat Linux that include upgrading rpms, kernel, HBA driver, configuring SAN Disks, multipathing and LVM file system
• Created users, manage user permissions, maintain User & File System quota on RedHat Linux.
• Developed Korn and Bash shell-scripts to automate routine activities

Home Depot Atlanta, GA

System Administrator

RESPONSIBILITIES:

• Installed, upgraded and configured RHEL 5.x/4.x and IBM AIX 5.x/4.x. This included Kickstart Installation, NIM Installation and CD media.
• Installed, configured and administration of Application Server 6.x, Network Deployment, MQ 5.x, 6.0, Jboss 4.x on Linux, AIX.
• Installed Fix packs on Application Server and added patches using Update installer.
• Installation and configuration of LVM & HACMP on various AIX Servers.
• Installation and configuration of Oracle RAC 11g on RedHat Linux cluster nodes.
• Configured SAMBA to get access of Linux shared resources from Windows.
• Day to day Linux and AIX hardware support, problem and change ticket implementations, composing scripts, OS builds & upgrades along with day-to-day Storage & UNIX Administration.
• Configuration of Secured Shell (SSH) in both AIX and Linux servers.
• Creating and managing VM’s through Virtual Centre and VI client.
• Scripting for automating changes during move to speed up process.
• Responsible for Monitoring and fine-tuning system and network performance for Linux systems.
• Provided 24/7 on call support on UNIX Production Servers. Responsible for maintaining UNIX security on RedHat Linux and IBM AIX.