SUMMARY:

• Strong experience in Unix/Linux/DEVOPS Engineer and support of LAN/WAN networks on multi platforms Red hat5/6/7, CentOS 5/6, IBM AIX 6.x, 7. And Solaris 8, 9, 10 and various devops tools.
• Experience in automated build platforms/continuous integration using various DevOps tools which includes configuration management tools, Version control tools, automation tools, etc.
• Involved in improving infrastructure architectural design and approaches of projects in the cloud platform amazon web services (AWS) by configuring the EC2, Security Groups, and Elastic IP's, storage on S3 Buckets, Load balancers, Auto - Scaling groups and VPC.
• Managed Amazon Web Services like EC2, bit bucket, RDS, EBS, ELB, Auto-Scaling, AMI, IAM through AWS Console and API Integration with Chef Code.
• Build scripts using ANT and MAVEN build tools in Jenkins to move from one environment to other environments.
• Configured and monitored distributed and multi-platform servers using Chef.
• Developed basic shell, Ruby and python scripts used to automate administrative tasks.
• Experience with Configuration Management/ Automation tool Ansible and has worked on integration Ansible YAML Scripts.
• Installation, Upgradation, configuration and Capacity Planning of Unix/Linux infrastructure for mid to large datacentres.
• Experience involving Virtualization environment consisting of VMware Infrastructure planning and design. Experience involves VMware ESX 5.X Network Architecture design of a cost-effective solution to migrate the physical infrastructure to ESX 5.5. Experience includes managing application migrations and P2V (physical to virtual) server migrations. Experience includes utilizing Virtual Centers virtual import tool to import virtual machines from physical servers. Experience includes implementing iSCSI SAN for backend storage on virtual environment.
• Experienced in installation and configuration of SAMBA&SMTP/ICMP/POP3/send mail/postfix.
• Creating and maintaining user accounts, profiles, security, rights, disk space and process monitoring.
• Problem determination and troubleshooting, Security using SSH and Shell Scripting.
• Experience in configuring and administering the Load balancing clusters.
• Experience in Configuring and administrating the Firewalls and setting up the access rules.
• Experience in planning, documenting and supporting high availability, data replication, business persistence, fail-over and fail-back processes.
• Performance tuning of Linux machines in the environment by kernel parameter tuning, identifying process that hog the system resources and containing them.
• Experience in shell, Perl scripting for automating administrative tasks and managing servers.
• Familiar in LDAP and QAS setup and Administration.
• Configured Networking Concepts DNS, NIS, NIS+, NFS and DHCP, troubleshooting network problems such as TCP/IP, providing support for users in solving their problems.
• Strong technical background in Storage, Disk Management, Logical Volume Management (LVM) and logical partitioning.
• Experience working Dev, QA and PROD environments working on Change & Incident requests.
• Configuring and administering VERITAS Cluster Services (VCS) and Red Hat Cluster Suite.
• Responsible for Backup and Recovery operations of various servers using TSM Net Backup.
• Management (SCM) in Agile and SCRUM methodologies.
• Experience with virtualization and cloud infrastructure, including: VMware, Xen, KVM, AWS etc.
• Experience in migration of Physical to physical and physical to virtual servers using platespin.

TECHNICAL SKILLS:

Operating Systems: Linux (RHEL 5/6/7), Centos4/5/6, IBM AIX 6, 7, Sun Solaris 8.0, 9.0, 10.0.

Server Hardware: HP ProLiant G7,8,9 DL380, DL580 server, Dell PowerEdge servers X86, Sun Enterprise 420,420R, 450, 3500, 4500, 6500 Servers, Sunfire 4800 & 6800, N- Class Servers, Sun Sparc work stations, AMD64 ABI X86, IBM R6000, Pseries, Cisco Routers and Switches

Storage hardware: Symmetrix DMX 800/1000 / DMX-2 / DMX-3 & EMC CLARiiON FC and CX Series, FC JBOD, Brocade FC Switches, Net App Filers, Qlogic and Emulex FC HBAs, Brocade silk worm 3200, 3800,48k, iSCSI/ FC Storage arrays, RAID Storage arrays, DLT and LTO Tape Libraries, Hitachi enterprise systems

Web Technologies: APACHE 2.x, 3.x, Tomcat, WebLogic (8/9/10).

Programming Languages: Shell Scripting, Perl Scripting.

Backup Tools: TSM, TSMVE, VERITAS Net Backup, Legato NetBackup and ufsdump.

Backup Devices: Sun Store EDGE Tape Libraries L9000 & L1000, EMC SAN storage boxes Dell Power Vault 128T, DLT & DDS Tape Drives

Ticketing Tools: Service Now, Hp service manager, ITG, Remedy, and Jira.

Database: Oracle 11G,12C, DB2 and MySQL

Configuration Management tools: Chef & Ansible

CI Tools/Continuous Deployment: Jenkins / Artifactory, Nexus

Version Control Tools: GIT, SVN

Operating Systems: Linux (RHEL 5/6/7), Centos4/5/6, IBM AIX 6, 7, Sun Solaris 8.0, 9.0, 10.0.

Server Hardware: HP ProLiant G7,8,9 DL380, DL580 server, Dell PowerEdge servers X86, Sun Enterprise 420,420R, 450, 3500, 4500, 6500 Servers, Sunfire 4800 & 6800, N- Class Servers, Sun Sparc work stations, AMD64 ABI X86, IBM R6000, Pseries, Cisco Routers and Switches

Storage hardware: Symmetrix DMX 800/1000 / DMX-2 / DMX-3 & EMC CLARiiON FC and CX Series, FC JBOD, Brocade FC Switches, Net App Filers, Qlogic and Emulex FC HBAs, Brocade silk worm 3200, 3800,48k, iSCSI/ FC Storage arrays, RAID Storage arrays, DLT and LTO Tape Libraries, Hitachi enterprise systems

Web Technologies: APACHE 2.x, 3.x, Tomcat, WebLogic (8/9/10).

Programming Languages: Shell Scripting, Perl Scripting.

Backup Tools: TSM, TSMVE, VERITAS Net Backup, Legato NetBackup and ufsdump.

Backup Devices: Sun Store EDGE Tape Libraries L9000 & L1000, EMC SAN storage boxes Dell Power Vault 128T, DLT & DDS Tape Drives

Ticketing Tools: Service Now, Hp service manager, ITG, Remedy, and Jira.

Database: Oracle 11G,12C, DB2 and MySQL

Configuration Management tools: Chef & Ansible

CI Tools/Continuous Deployment: Jenkins / Artifactory, Nexus

Version Control Tools: GIT, SVN

PROFESSIONAL EXPERIENCE:

Confidential, Greenwood village, CO

Linux/DevOps Engineer

Responsibilities: -

• Working on Building and configuring Linux machines (Red hat, Centos 7.X, 6.X).
• Configuring the machines through stage, Dev and prod environments.
• Build, configured & Supported around 5000+ server (include standard and virtual) which carries Linux (Redhat, Centos 7.x, 6.x).
• Provisioning the virtual machines using open source Terraform Provisioning tool.
• Develop new modules in order to support custom functionality in Terraform.
• Performed automated installations of Operating System using Kickstart/Spacewalk for Linux Servers on Cisco UCS hardware.
• Performed regular installation of patches using RPM and YUM.
• Proficiency and understanding on load balancer like F5.
• Implemented and maintained the branching and build/release strategies using GIT.
• Designed and created multiple deployment strategies using Continuous Integration and Continuous Development (CI/CD) tools like Jenkins.
• Implemented the setup for Master slave architecture to improve the Performance of Jenkins.
• Created local, virtual repositories in Artifactory and integrated with Jenkins to deploy and test the repositories as they get published.
• Utilized configuration management tool chef and create chef cookbooks to automate system operations.
• Manage Chef Server in pushing the configuration changes to client nodes, monitoring the logs and security.
• Created new Chef Recipes and libraries and modified existing ones as per the client requirements.
• Used Ansible for Ad-Hoc based multi servers’ validations.
• Developed Ansible playbooks for custom server validations.
• Agile and SCRUM methodologies for effective code releases and team management.
• Create and maintain customized complex Jira project configuration’s including workflow, custom fields, permission and notifications.
• Daily monitoring response for Linux servers including application process, files systems alerts, systems faults using Nagios.
• Installed and configured ELK stack for log aggregation.
• Configured RabbitMQ cluster for log message queues with custom groks.
• Configured Nginx for reverse proxy setup in multi cluster environment.
• Product support engineer for S&T products including TSbroadcaster and TSMonitor.
• Multiple improvements in the build and deployment process of Charter's Video delivery and guide.
• Experience in Shell scripting ( ksh, bash ) to automate system administration jobs.

Environment: Linux, VMware, Terraform, chef, Ansible, Jenkins, GIT, Jira, Shell, Cisco UCS, RabbitMQ, Icinga, DAC, DNSIS, Micro services, ELK.

Confidential, Plymouth MN

Linux/DevOps Engineer

Responsibilities: -

• Working on Build environment of RHEL7.x, 6.X.5.x
• Building and supporting environments consisting Test, stage, Prod, Dev and Disaster Recovery servers.
• Supported around 3000+ server (include standard and virtual) which carries Linux (Redhat) and Aix.
• Created cluster nodes for Oracle 12C RAC for deploying shared SAN for ASM and configured VIPS and SCAN IPs.
• Custom built Oracle RAC 11g and preparing servers for database installation which includes adding kernel parameters, software installation, permissions etc.
• Creation, Installation and administration of Red Hat Virtual machines in VMware Environment.
• Performance tuning, troubleshooting and monitoring bottlenecks of network, CPU, memory and Disk.
• Performed installations of OS on RHEL 7, 6.X on VMware ESXi 5.5 and HP ProLiant Gen 7, 8, 9 HP series servers using Kickstart and HPSA.
• Creation and maintain the ext4 and xfs file system.
• Configuration of Network bonding which include Active/Standby.
• Created, installed, updated software’s using RPM’s & HPSA.
• Creation of SAN File System on Red Hat Linux using multipath configuration.
• Performed patching of RHEL using Redhat Satellite server and HPSA.
• Expertise in troubleshooting database server’s performance issues and taking care of DBA Activities.
• Installation of HBA cards (Emulex and Qlogic) and upgradation of firmware, BIOS using ILO4 tool.
• Trouble shooting of day to day system and user problems.
• Monitored the servers and applications using HPopen view.
• Involved in removing the security vulnerabilities on RHEL.
• Monitored daily batch jobs and troubleshooting the failed or delayed jobs.
• Troubleshooting of java applications issues running on Jboss nodes like memory leakage.
• Responsible for Defective Disk replacement and re-establishing the Mirror.
• Hands on experienced in Amazon Web Services (AWS) provisioning and good knowledge of AWS services like EC2, S3,ELB (Load Balancers), RDS, SNS and EBS etc.
• Utilized Cloud watch to monitor resources such as EC2, CPU memory, Amazon to design high availability applications on AWS across availability zones.
• Configured AWS Identity and Access Management (IAM) Groups and Users for improved login authentication
• Used EC2 as virtual servers to host Git, Jenkins and configuration management tool like Ansible. Converted slow and manual procedures to dynamic API generated procedures.
• Build scripts using ANT and MAVEN build tools in Jenkins to move from one environment to other environments.
• Involved in editing the existing ANT/MAVEN files in case of errors or changes in the project requirements.
• Written shell scripts for start/stop/restart Jenkins.
• Installed and configured Jenkins and created parameterized jobs to kick off builds for different environments.
• Setup Docker on Linux and configured Jenkins to run under Docker host.
• Used Ansible as Configuration management tool, to automate repetitive tasks, quickly deploys critical applications, and proactively manages change.
• Used Ansible server to manage and configure nodes, Managed Ansible Playbooks with Ansible roles. Used file module in Ansible playbook to copy and remove files on remote systems.

Environment: HP ProLiant GEN 7,8,9, VMware ESXi 5.X, RHEL 7,6.X,5.X, Active Directory &QAS, Vcenter 5.5, HPSM, HPSA, HPOV, HMC, Splunk, Docker, Ant, Jenkins, Maven, WebLogic, Perl, Shell, Tivoli storage management (TSM).

Confidential, Raleigh, NC

Unix/Linux Administrator

Responsibilities: -

• Performed automated installations of Operating System using Kickstart for Linux Servers and Jumpstart for Solaris.
• Managed Linux servers running Applications and also installing software and Patch depots on Linux servers.
• Extensively worked on hard disk mirroring and stripe with parity using RAID controllers for a failed Hard Disks.
• Worked on Incidents and Change Tickets in Service Now.
• Configured Multipath on Linux Servers.
• Troubleshooting issues on Application Servers on Linux, Aix and Solaris Servers.
• Supported around 5000+ server which carries Linux (Redhat, CentOS) & Solaris.
• Installed RPM’s on RHEL server using repository and Redhat satellite servers.
• Monitoring Virtual memory, Swap management, and Disk and CPU utilization by using various monitoring tools.
• Involved in mass migration of data form old EMC Storage subsystems to new Subsystems.
• Experience in installing, integrating, tuning and troubleshooting Apache and Tomcat application server.
• Performed regular installation of patches using RPM and YUM.
• Maintained LVM, VxVM and SVM filesystems along with NFS.
• Installation of SAMBA 3.6.x server for interface between Linux servers and Windows servers to share files.
• Troubleshooting of day to day system and user problems various Servers on Linux.
• Managed existing documentation for systems and created new procedures to support new products. Created documentation for disaster recovery project.
• Strong scripting knowledge to perform different administration tasks.
• Experience in Shell scripting ( ksh, bash ) to automate system administration jobs
• Involved with client interaction.
• Implemented Puppet modules to automate configuration of a broad range of services.
• Involved in puppet configuration and implementation.
• Setting up Oracle RAC environments for installation for Oracle 10g, 11.2.1, 11.2.2, Sending daily and weekly reports and handovers.

Environment: Redhat Linux (6.2,5.6,5.5), Solaris10, Aix6.x, Oracle10g,11.2.1,11.2.2, Sun M5000, Sun M3000, SunM4000, SunT5120, SunT5220, SunT5440, SAN/EMC, Shell scripting (ksh, bash),Symmetrix DMX 800/1000 / DMX-2 / DMX-3 & EMC CLARiiON FC and CX Series.

Confidential, Sanjose, CA

Unix/Linux Administrator

Responsibilities:-

• Installing Configuration and maintenance of Solaris 8/9/10, Redhat Linux 4/5, HP-UX 11.x and IBM AIX operating systems.
• Experience with VMware vSphereESXi 5.5.
• Deploying Redhatlinux servers in fast paced environment.
• Creating the template for the linux those are used for deploying for the environments.
• System audit report like no. of logins, success & failures.
• Remotely coping files using sftp, ftp, scp.
• Created user roles and groups for securing the resources using local operating System authentication.
• Modified Kernel parameters to improve the server performance in Redhat Linux.
• Experienced in tasks like managing User Accounts and Groups, managing Disks and File systems.
• Install and configure packages for the server they are needed by vendors.
• Participated in the migration planning, developing, testing and moving the migration process onto full-fledged production network.
• Manage logical Volume manager on Red hat Servers.
• Configuring & monitoring DHCP server.
• Experience in installing, integrating, tuning and troubleshooting Apache and Tomcat application server.
• Worked on EMC storage for the virtual machine.
• Supporting Customers on a real time IssueTrak ticketing System for solving online operational issues.
• Scheduling of automatic repetitive Jobs, and Shell Scripts with Crontab.
• Monitoring Virtual memory, Swap management, and Disk and CPU utilization by using various monitoring tools.
• Taking backup using tar and recovering during the data loss.
• Documenting the installation of third-party software’s.
• Performed regular installation of patches using RPM and YUM.
• Maintained LVM, VxVM and SVM file systems along with NFS.
• Installation of SAMBA 3.6.x server for interface between Linux servers and Windows servers to share files.
• Troubleshooting of day to day system and user problems various Servers on Linux.

Environment: - Linux RHEL4/5, Solaris 8/9/10, HP-UX 11/11i, AIX 5.3L, VMwarevSphereESXi 5.5,DB2, Enterprise Server, Sun Fire 6800/ E6500/ E4500 & E3500, SunSparc1000, Sun V440, V490, HP-9000, rx8640, K, L, N Class Server, HPDL380,580,IBM RS/6000, pSeriesServer, LVM, Shell Scripting, Apache, Apache Tomcat, Windows, SAN / EMC

Confidential

Unix/Linux Administrator

Responsibilities: -

• Installed and configured Red Hat Linux Kickstart and Solaris jumpstart Servers.
• Installed and implemented NAS with RAID 1 and RAID 5 configurations.
• Monitored the Network and System Performance through vmstat, iostat tool.
• Configured backup and restoration of data from tape in Dump and Tar format using Shell Scripts.
• Implemented backup strategies based on the company policy using Shell Scripts.
• Recovered data from server after a ROOT file system crash.
• Created and added Swap Space at runtime.
• Configured additional storage devices, partitioned hard disk based on the project requirement.
• Handled Day-to-Day operation of all servers running Production jobs, Backups, Restores and Report generations.
• Backed up and restored data from tape in tar, cpio&dd format.
• Configured the Send Mail configuration file, created e-mail ids, created alias database.
• Handled troubleshooting the configuration file, configured the Boot file for the Domain Name Server to boot, configured and updated the Zone database.
• Installed various software packages such as tcpd, ipfilter and patching the appropriate software.
• Planned for storage and backup including studying the disk space requirement and backup device performance.
• Tested and implemented various types of software for backup.

Environment: -Red hat Linux, Solaris, Remedy, Redbox, VERITAS Volume Manager, RAID Technologies, Sun Enterprise 250/220R/420R/2900, E10K, E25K, Hitachi enterprise systems, MySQL database and Replications.