LInux / devops engineer
10 years of IT experience in large-scale enterprise implementation and support. Proficient in various aspects of Server Computing Infrastructure Management. Experience in Installation, configuration, and System Administration with Linux (RHEL 7/6/5/4),SuSE Linux […] Solaris […] HP-UX (11.x/10.x),AIX (5.x/6.x) and Windows […] administration. Experience in building Servers using Kickstart for Linux, Jumpstart and Flash Archive for Solaris, Ignite for HP-UX and exposure to NIM for AIX installation. Experience in RPM Package Administration for installing, upgrading, and checking dependencies. Reconfiguring RPM database using RPM Build and creating YUMrepository in Red hat Linux. Experience in building Red Hat Network Satellite Server for automated installation of Linux boxes and creating image of Linux system with System Imager that automates Linux installs. Experience in installation, configuration and administration of VMware based virtual servers using ESX/ESXi servers, vSphere and Virtual Center. Troubleshooting problems pertaining to Windows 2000/2003/2008/2012 Planning, configuration, maintenance and administration of Windows Server Systems. Administering and provisioning RedHat, SUSE, and CentOS servers on IBM Softlayer Cloud, including backups and cloud storage. Expert knowledge of public cloud providers (Amazon AWS/EC2, IBM SoftLayer, Google Cloud) and their technology offering, APIs and enterprise integration points Experienced with Deploying and administering OpenStack services i.e. Nova, Neutron, Swift etc. and developing OpenStack through Python. Knowledge and experience in supporting different databases like DB2, Oracle on AIX and LINUX Proficient DB administration (Oracle, DB2, Sybase and SQL) knowledge for maintaining, pruning, and performing required DB tasks. Worked with Pacemaker and Corosync for HA and clustering of different openstack and non-openstack services like neutron, haproxy, dns. Developed various JSON files for passing values for creating environments and describing about the puppet modules developed. P2V, V2V conversions of Windows 2012 and Windows 2008 servers using Enterprise Converter. Extensive experience in studying existing infrastructure landscape, cloud product matching, design cloud architecture, Proof of Concepts, design improvements, cost Estimation and implementation of AWS Cloud Infrastructure recommending application migrations to public Vs. private cloud. In-depth AWS experience AWS including EC2, VPC (NAT, VPC Peering and VPN), Identity and Access Manager (IAM), EC2 Container Service, S3, CloudFront, Glacier, RDS, Dynamo DB, ElastiCache, Direct Connect, Route 53, Cloud Watch, CloudTrail, OpsWorks, SNS, SES, SQS, SWF. Implemented REST APIs using Python and Django framework. Worked on Python OpenStack APIs and used NumPy for Numerical analysis. Extensive experience designing and developing Restful APIs & SOAP web-services using Apache Expertise in using build tools like MAVEN and ANT for the building of deployable artifacts such as war & ear from source code. Application Deployments & Environment configuration using Chef, Puppet. Experience in Server monitoring, capacity planning, application monitoring with the help of Nagios, Cacti, Puppet, Splunk Supporting databases like Oracle, Sybase, DB2 and Oracle RDBMS. Integrated Jenkins with repositories like GitHub to build Automation tools (Maven and Ant), and Artifact repository for pushing successful build code. Imported and managed multiple corporate applications into GitHub code management repo. Edit and Create .yaml files for Puppet use, managing files and server configurations Experience in implementing and monitoring High Availability environment using VERITAS Cluster Server, Sun Cluster, Red Hat Cluster Suite and HP Service Guard. Developed and maintained Python /Shell scripts for build and release tasks. Developed UNIX shell scripts using Korn, C Shell, Bash Scripting, python and Perl. Experience in installing, configuring the Volume/File system management using VERITAS Volume Manager (VxVM), Logical Volume Manager (LVM), Solaris Volume Manager (SVM), Veritas File System (VxFS). Experience in installing, configuring and maintaining Application Servers like WebSphere and Web Logic, Web Servers like Apache HTTP and Tomcat on UNIX and Linux. Setup Ansible on a management server in order to automate server admin tasks and reporting. Discover and gain access to all Linux hosts in the environment. Create a database of the hosts in order to collect and store various pieces of system data as well as acting as the source of truth for the ansible automation. Extensively worked on administering NFS, NIS, NIS+, DNS, DHCP, LDAP, Mail servers, Samba Servers. Extensively worked on Solaris 10 Container technology, responsible for creating, configuring and maintaining ZONES and installing applications on individual zones (global and local zones). Performing software installation, upgrades/patches/packages, troubleshooting, and maintenance on UNIX & Linux Servers. Highly experienced on installation and configuration of automating tool like Puppet and Chef master server Deploing chef books for managing the Cookbooks Worked on DevOps, puppet, chef, Jenkins, Github tools. Experience in configuring Zettabyte File System (ZFS) pools, file systems, snapshots and clones in Solaris and Global File System (GFS) in Linux. Experience in installing and configuration of OpenStack. Experience in User & Security administration, multiple backup & recovery technologies (Snapshots, Disaster Recovery plan) and maintenance of various activities. Expertise in configuring IPMP (IP network MultiPathing) in Solaris and Bonding in Linux. Capacity planning and recommending hardware for SAN (Storage Area Network) implementation and replacements. Experience working on Oracle Real Application Cluster (RAC) database, which provides highly available database solutions and supported MS SQL Server and DB2 teams. User administration using CA Control Minder tool for Linux user accounts. Experience on Live Upgrade, migrating from UFS root file system to ZFS file root system in Solaris. Involved in Data Center Migration for P2P, V2V and P2V environments. Storage experience in managing NAS, EMC storage arrays and Veritas Net Backup administration (VNB). Extensive experience in doing backup to tapes periodically using job scheduling Crontab& at Services/Packages using Chef as well as AWS for EC2/S3/Route53 & ELB with Chef Cookbooks. Expertise in monitoring System resources and Kernel parameters to enhance the system performance. Extensive experience in Shell (Bourne, Korn) and knowledge of HTML, Java Scripts, SQL, Perl Scripting. Administering operating systems, hardware, and peripheral components, and maintain databases. Expertise in designing and implementing LANs, WAN services and IP Addressing schemes. Experience working with ITIL process (Change management, release management and problem management, Remedy and working on Remedy and Managenow. Excellent communication, leadership, mentoring, written and problem solving skills. Leadership Qualities. Good Team player with proficiency at time management, multitasking, able to meet deadlines and handle priorities.