SUMMARY

• 7+ years of IT administration experience in UNIX/LINUX flavors - Solaris, AIX, RHEL 5/6/7, CENTOS, SUSE (SLES 12, 15),IBM websphere and Ubuntu operating systems.
• Redhat Linux Certified System Administrator, Ansible, Terraform, Python Scripting, Veritas Cluster Services, VMware Vsphere. Experienced Unix/Linux System Administrator with a demonstrated history of working in the information technology and services industry
• Responsible for building, installing, and configuration of Linux based servers, deploying and testing OS, security updates, baselines and disk imaging, upgrades, patching, load sharing facility (LSF) and maintenance.
• Having good experience on Red hat satellite servers with patching, upgrading and deploying on RHEL servers
• Experience with SSL certifications and implementation/renewal of certificates
• Experience on working with certificates and SSL/TLS usage and troubleshooting
• Worked on Kickstart files, PXE boot and Ansible playbooks automation
• Deployment, requirement gathering, Installation, administration of VMware.
• Experience in build automation tools like Jenkins, Ant, Maven, Bamboo
• Expert in Automation of Release and Deploy configuration management to different environments
• Experience in administering servers running on KVM, VMware ESX, and Hyper - V and vSphere
• Experience in Installing Firmware Upgrades, kernel patches, systems configuration, and performance tuning on Linux systems.
• Experience in Creation and managing user accounts, security, rights, disk space, quotas and process monitoring in Redhat Linux.
• Experience in configuration of DNS, NTP, DHCP, NFS and LDAP.
• Experience in AWS, GCP, Azure cloud computing, virtualization, Linux systems administration and configuration management.
• Worked closely with teams and helped on automated CI/CD pipelines for code deployment.
• Built and deployed Docker container for improving developing workflow, increasing scalability and optimizing speed.
• Worked on building Docker container services managed by Kubernetes. Possess knowledge on pipelines. Maintained nvidia -docker image for production environments.
• Experience on Morpheus, Naigios and Logic Monitor of monitors the servers and applications hosting.
• Experience on Networking (TCP/IP, httpd, tcpdump, VLAN tagging).
• Having strong troubleshooting skills and command line skills.
• Familiarity on Bash, Shell and Python scripting to automate the Linux/Unix infrastructure.
• Experience in strategy and practical implementation of AWS Cloud services which include EC2, EBS, S3, S3 Glacier, Storage Gateway, VPC, Route 53, Snowball, Direct connect, Storage Gateway, CloudFormation, Dynamo DB, RDS, ELB, EMR, ECS, Cloud Front, OpsWorks, Elastic Cache, Cloud Watch, CloudTrail, Kinesis, Redshift, Lambda, AWS Elastic Beanstalk, SNS, SES.
• Managed IAM policies, providing access to different AWS resources, design and refine the workflows used to grant access
• Created AWS Route53 to route traffic between different regions.
• Experience in using Nexus Artifactory Repository Managers for ANT, Maven and Gradle Builds.
• Implemented and maintained the monitoring and alerting of production and corporate servers/storage using AWS Cloud watch.
• Used the Ansible and Terraform to Automate the Various deployment using playbooks.
• Having knowledge on configuration Management tools like Ansible and Chef.
• Experience in making documentation for standard operating procedures of various administration tasks.
• Experience on databases like Oracle, MongoDB and Mysql.
• Exposure to testing and deployment tools and CI/CD.
• Having knowledge on Bug tracking tool like Bugzilla on reviewing patches.
• Experience on request tracking and ticket systems service now.
• Familiarity with Microsoft products like Visio.
• Worked on advanced systems administration, operational support and problem resolution for UNIX/LINUX based systems.
• Extensively worked in setting up Pluggable Authentication Modules (PAM) authentication for AD on SUSE and Ubuntu servers.
• Knowledge on ILO, IPMI, RAID and Switches.
• Experience on NFS and NAS storage appliances (NetApp and EMC).
• Having knowledge and familiarity on load balancing, firewalls.
• Supported the Hackathon 2019 from IT to engineering team by provisioning AWS-Instances.
• Experience on Windows Active Directory, DNS, DHCP, Windows desktop and Remote desktop. Implementation and administration of Active Directory in Windows 2008, 2012 and 2003 environment. Creating and Managing Users, Roles and Access Permissions.
• Worked on Windows servers for handling few administrator tasks.
• Team player with good management, analytical, communication and Interpersonal skills.

TECHNICAL SKILLS

Devops: Nexus, Git, Maven, Docker, Kubernetes, Ansible, Terraform, Jenkins, Jira

Cloud: AWS, GCP, Azure

Operating Systems: Oracle Solaris 10, IBM AIX, RHEL 5,6, 7, Centos 5,6,7, Ubuntu 18.04, SLES

Hypervisor: KVM, VMware, Hyper-V

Hardware: HP Proliant, Blade servers, SuperMicro Servers, Dell PowerEdge, Storage servers NetApp.

Software: Jira, Nagios, Clonezilla, Kafka, Service Now, Nagios, Morpheus, Microsoft teams

Web/ Application Server: NGNIX, WebLogic, Apache,Tomcat

Database: MySQL, Oracle, NoSQL

Network Protocols: DHCP, DNS, NTP, SNMP, SMTP, Ethernet, IOS, netstat, NFS, NIS, PAM, Kerberos, nslookup, TCP/IP, and tcpdump.

Scripting Language: Bash, Shell, Python

PROFESSIONAL EXPERIENCE

Confidential, Fort Worth, TX

DevOps Engineer/Linux Administrator

Responsibilities:

• Having good experience on Installations, Configuring of Solaris, AIX, RHEL& CentOS servers, Adding Users/Group accounts Using Command line Interface, LVM management, Swap partition, network configuration, load sharing facility (LSF) and troubleshooting.
• Hardening the system at a high level, making sure SElinux is in Enhance mode. Setting up complex password polity for user accounts and groups to make sure and attacker cannot gain easy access into the system.
• Monitoring system performance using Top and advance monitoring tool like Nagios, and Cloudwatch for AWS to make sure my CPU health is in good shape, and also making sure my storage and Memory usage are not exceeding normal, to avoid system crash or slow down operations.
• Maintaining Solarix, AIX, Ubuntu Servers, RHEL and SLES servers by using KVM hypervisor.
• Managing Linux Web Servers, Security, Asterisk, Linux Systems, Network, Vmware ESXi, WHM and Other Web Hostings & Monitoring Servers
• Worked on encryption technology on installing and updating SSL certficates
• Experience on working with encryption (TLS,SSL, Secure Boot, Security certificate Management and Rest)
• Maintaining Server and Services provided like webserver, Shared server and Network Security including regular pentesting and report generation
• Using Jenkins AWS Code Deploy plugin to deploy into AWS.
• Experience with EC2, Security Groups, ELB, VPC, Cloud Formation, Cloudwatch, Glacier, IAM, RDS, Route53, S3, SNS and SQS
• Experience working with IAM in order to create new accounts, roles and groups.
• Automated with AWS resources with Node.js script.
• Created Elastic Load Balancer to distribute incoming application traffic across Amazon EC2 instances.
• Experience with CI (Continuous Integration) and CD (Continuous Deployment) methodologies using Jenkins.
• Installed and configured GIT and communicating with the repositories in GITHUB.
• Developed strategies and supported tools to create an efficient automated integration and release process using Jenkins .
• Troubleshoot the issues raised in Jenkins while using for continuous integration and deployment.
• Configured and maintained Jenkins to implement the CI process.
• Performed database MySQL queries to address connectivity and integration activities.
• Used Python, and Bash script to do data verification between Mysql and Oracle databases as part of database migration.
• Developed Python and shell scripts for automation of the build and release process.
• Ability in managing all aspects of the software configuration management process including code compilation, packaging / deployment / release methodology, and application configurations.
• Creating the containers by using Docker.
• Experience in Docker installation and images, run the Docker containers
• Automated different workflows, which are initiated manually with Python scripts and Unix shell scripting.
• Development of Chef Cookbooks to manage systems configuration.
• Experience in setting up the Chef repo, Chef work stations and Chef nodes and Created and maintained the Python deployment scripts for Web Sphere web application server

Confidential, Milpitas, CA

Linux Administrator for Build and Migration Process

Responsibilities:

• Built, deployed and configured of Unix (AIX) and Linux servers SUSE 12, UBUNTU 18.04 LTS Linux (Debian) on SUPERMICRO hosts for the Deep Learning project, thereby providing the path for enabling the smooth and successful migration of servers
• Responsible for implementing NVIDIA-GPU workstations and provisioning Virtual Machines on KVM hypervisor for Data Science (Engineering) clients/workstations
• Worked on KVM hypervisor to setup complete environment of Test, Dev and production environment
• Create, extend, reduce and administration of Logical Volume Manager (LVM) in RHEL environment.
• Integrated PAM Authentication on Solaris, RHEL and Ubuntu 18.04 servers.
• Advanced knowledge in troubleshooting errors associated with SUSE and UBUNTU servers
• Worked on PAM authentication to allow engineering team to access to Linux boxes on their windows AD credentials
• Integrated windows Active Directory to SUSE and UBUNTU Linux machines as users can login with their windows credentials into Linux machines.
• Moved many Physical servers into IT data center and mounted into racks.
• Taking direction from the team lead and worked within a team-environment to achieve the organization goals
• Worked on build process Docker container servers managed by Kubernetes
• Worked on configuration management tools and automated few project tasks with Ansible, Puppet.
• Provided technical solutions to a wide range of problems and user requests through an established IT-Ticketing system Service Now.
• Installed, configured and maintaining various Linux flavors (RHEL, CentOS, Scientific Linux, Ubuntu, SLES etc.) and associated applications
• Perform standard administration tasks (packaging, OS installs, patch management)
• Configured RAID and IPMI on physical servers and accessible remote access for physical servers.
• Regularly collaborating with Project management team to update the Phases of projects
• Worked on Linux based storage manager such as LVM.
• Provide Linux support to IT infrastructure and Engineering users
• Daily tasks include communicating with different functional groups like Engineering, IT and Vendors.
• Installation of RHEL, SUSE and Ubuntu for Deep Learning environment on multiple Hosts and VMs.
• Provided the GPU-VMs infrastructure to Engineering team by configuring the NVIDIA-GPU hardware to VMs
• Configuring Bond, Bridge for physical interfaces with VLAN tagging.
• Troubleshooting many network issues on network conflicts and made all servers are up and run in port channel on switches.
• Worked on commands on windows power shell ISE to retrieve user’s information from active directory.
• Created mount points and assigned group level storage sharing in NetApp storage server on Infoblox platform.
• Managed many data center operations like mounting physical servers in rack, installing the 10G Transceivers to Dell switches, working on KVM switches.
• Worked on NFS storage to mount various paths for users to store their data.
• Manage on premises and cloud environment running on AWS.
• Integrated the VMs infrastructure into a dashboard available tool Morpheus for start/stop VM.
• Provisioned the Docker, Nvidia-Docker enabled VMs for users where they want to work on Containers.
• Collaborating in regular basis with weekly updates on Project phases with project team, leads and product owner.
• Worked on Nutanix cloud based platform and provisioned VMs to users.
• Worked on EC2 and provisioned 100+ Instances in AWS, for Hackathon 2019.
• Configuring SNMP to many servers for adding hosts in Logic Monitor.
• Performs daily system monitoring, verifying the integrity and availability of all hardware, server resources, system and key processes, and reviewing systems and application logs

Confidential

Linux/Unix Administrator

Responsibilities:

• Primary responsibility includes building and supporting Solaris/Redhat Linux servers.
• Installation and configuring of SUN Solaris and Linux servers.
• Involved in Building and configuring Solaris 8/9/10 using Jump start server and Red Hat Linux Servers using KickStart server as required for the project. Maintained maximum uptime and maximum performance capacity for Enterprise Production, QA, and UAT/Staging.
• Experience in Installing and Configuring Puppet, MySQL, Tomcat on RHEL
• Extensive use of VERITAS Volume Manager for Disk management, file system management on Sun Solaris environment.
• Setup and Configuration of Puppet Configuration Management.
• Implemented Puppet modules to automate configuration of upgrading the linux kernel and Managing persistent SSH tunnels
• Implemented day-to-day tasks in RHEL and CentOS that includes upgrading kernel, configuring, multi-pathing, NAS Mount and Unmounts.
• Developed Puppet modules to automate deployment, configuration, and lifecycle management of key clusters.
• Created Zetabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.
• Expertise in Linux backup/restore with tar including disk partitioning and formatting.
• Regular disk management like adding / replacing hot swappable drives on existing servers/workstations, partitioning according to requirements, creating new file systems or growing existing one over the hard drives and managing file systems.
• Planned, scheduled and Implemented OS patches on both Solaris & Linux boxes as a part of proactive maintenance.
• Extensive experience in installing, integrating, tuning and troubleshooting Apache, Tomcat, WebSphere and Weblogic application server.
• Implemented SUDO, SSH and other security tools and implemented SOX (Sarbanes Oxley) security compliance.
• Monitoring CPU, memory, iSCSI disks, disk controllers, physical disk, HW and SW RAID, multipath, file systems, network using the tools NAGIOS and BMC Tools.
• Assisted in configuring the application servers with other components such as database, web servers, LDAP directory, Active Directory, BEA Web logic etc.
• Extensive use of VERITAS Volume Manager for Disk management, file system management on Sun Solaris environment.
• Created Zetabyte file system (ZFS) in Solaris 10. Created zpools. Exported ZFS from local zones to local zones.
• Installation and configuration VERITAS NetBackup on Sun Severs and performing Backup using VERITAS Net Backup.

Confidential

Unix/Linux Administrator for Migration Process

Responsibilities:

• Worked on Migration of AIX servers to Linux Migration of AIX servers to RHEL/Centos (Virtual servers) around 800 servers and tune them OS for applications.
• We build servers in Sdiportal, in that portal we provision the new VMS. Servers will Autopatch every month.
• Worked on post build activity like Netbackup client, Installing required packages which are requested by application and database team.
• Worked as onsite system administrator closely with the client (Wal-Mart).
• My major responsibilities are Gathering the client’s requirement and communicating with my offshore team, Updating team if any change request.
• As administrator worked as support on major Issues to resolve them with team.
• Provided 24x7 supports for large number of production, development and test systems.
• Installation of SSH and configuration of key based authentication.
• The daily mix of tasks includes migration of AIX server to Linux (RHEL/CentOS)
• Constant Monitoring of system performance.
• Install and configure packages and patches on Solaris/Linux
• Install, configure and manage MYSQL database server
• Worked on tickets to resolve day to day software application bottlenecks.
• Adding the packages and patches to the servers when needed.
• Participating in root-cause analysis of recurring issues, system backup and security setup, security Install and configure puppet and provide 24X7 support in production Testing.
• Installing and maintaining the operating system and related software products

Confidential

LINUX/UNIX Administrator

Responsibilities:

• Installing OS on physical servers manually, by using foreman tool and supporting them.
• Configuring the IPMI, RAID controllers during the build phase and make sure they comply with the company standards.
• Creating VM’S using templates manually and supporting them.
• Supporting the Application team during the deployments and critical issues.
• Basic Administration of VMware like adding disk and checking logs etc.
• Performing patching, upgrades and security support with extensive troubleshooting of OS and application issues
• Following Agile Scrum methodology for the delivering the products.
• Supporting the application team on the go live activities.
• Keeping the server up & running with minimal downtime
• Perform daily weekly and incremental backup to maintain the system integrity
• Troubleshooting Linux OS related issues like Disk, CPU utilization, Memory Utilization, SSH.
• User Administration, Package Installation method (RPM,YUM,APT-GET)
• Perform regular system backup & recovery.
• Monitor submitted tickets; assign and communicate, as required.
• Archive, compress, unpack and uncompress files using tar, gzip and bzip2.
• Change passwords and adjust password aging for Local user accounts, set enforcing and permissive modes for SElinux.
• Updating the scrum master with all the project deliverables and meeting the deadlines.
• Troubleshooting client issues raised in service now Ticketing Tool.
• Coordinating with different teams and vendor for resolving the issues of client through ticketing tool.
• Installing and troubleshooting Ftp, MySQL, php, phpmyadmin, VNC, Apache, Tomcat, NTP, and NFS.
• Making a backup plan before performing any changes on the servers.
• Creating, Extend and Reducing the LVM.
• Perform package management using pkgadd, pkgutil in Solaris and using rpm, yum in Linux
• Package management using yum, rpm and apt-get.
• Monitoring the system’s performance using top, iftop, netstat, sar etc.