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Linux / Unix / Devops Engineer Resume

SUMMARY

  • Over 8+ years of IT experience as a Linux System Administrator/AWS/DevOps engineer worked on several operating systems like Red Hat Enterprise Linux, CentOS, Ubuntu Linux, SUSE, Solaris and Windows.
  • Extensively worked on Cloud Management Amazon Web Services, Configuration Management and Continuous Integration tools such as CHEF, Puppet, Jenkins and GIT.
  • Extensive experience in building, installing, configuring, and troubleshooting computer systems.
  • Excellent communication and strong interpersonal skills with ability to interact with end - users, managers and technical personnel.
  • Responsible for scheduling and deployment of OS and Storage management software patching
  • Provide 24x7 Production support for all UNIX systems supporting 8 business units.
  • Developed scripts to perform administrative tasks and to automate jobs.
  • Specialized IT experience in Linux/Solaris/Ubuntu/Windows/Cloud/Splunk.
  • Experienced as DevOps Engineer and proficient in Puppet, Chef, Jenkins, AWS,
  • Created AWS instances and deployed applications and delivered for QA teams to initiate performance testing.
  • Hands on experience in AWS provisioning and good knowledge of AWS services like EC2, S3, Glacier, ELB, RDS.
  • Experience in administration of Production, Development & Test environment’s working in various flavors of Linux and Unix like RHEL 4.x, 5.x, 6.x, 7.x, Ubuntu, CentOS, AIX 5.2 /5.3 /6.1 /7.1 and Solaris 8, 9, 10.
  • Strong in troubleshooting, monitoring, training and 24/7production support in production environment.
  • Experience with DevOps essential tools like Chef, Puppet, Ansible, Jenkins, Bamboo, Git, maven, Docker, and Linux/Unix system administrator with CentOS, Ubuntu, RHEL, Debian, Solaris and VMware V-Sphere ESX/ESXI environment.
  • Extensive experience in using Ansible for managing deployments in large number of servers.
  • Hands on experience in writing Ansible Playbooks and managing the Roles as well.
  • Written Ansible Playbooks for zero-downtime installation, upgrading and uninstalling of various processes.
  • Experience in writing chef cookbooks and recipes to automate middleware installations, domain creations and deployment activities.
  • Experienced with Server Virtualization using VMware/Hyper-V, AWS S3 and Oracle VM.
  • Scheduling various Cron jobs for backups, database and proprietary jobs using CRON and BMC Control-M and troubleshooting daily job problems.
  • Extensively worked with Version Control Systems CVS, SVN (Subversion), GIT and TFS.
  • Implemented Continuous Integration and deployment using various CI Tools like Jenkins, Puppet, Ansible, Chef, Hudson, Bamboo and Sonar Type Nexus.
  • Monitored and fine-tuning system and network performance for server environments running Red hat Linux, Ubuntu, Solaris.
  • Hardware and software RAID management of storage for redundancy and high performance.
  • Extensive experience in AWS Cloud platform and its features which includes EC2, VPC, EBS, AMI, SNS, RDS, EBS, CloudWatch, Cloud Trail, CloudFormation, Autoscaling, CloudFront, IAM, S3, and R53.
  • Experience of IaaS platform(s) like AWS, Azure and VMWare.
  • Implemented Continuous Integration and deployment using various CI tools like Jenkins, Puppet, Chef, Dockers.
  • Working knowledge of designing and implementing backup procedures using VERITAS Net Backup and performing Disaster Recovery planning.
  • Expertise in RAID Configuration, VERITAS Cluster Server, VERITAS Volume manager, Logical Volume Manager and VERITAS Net Backup.
  • Worked on creating the Docker containers and Docker consoles for managing the Microservice based application life cycle.
  • Good patch management experience on both physical and Virtual Linux/OEL servers on VMware and PCA, Solaris Servers, Zones/LDOM, using Red Hat Satellite/Spacewalk and Solaris IPS.
  • Experience in VMware Installation and monitoring Virtual environments with ESX/ESXI servers, Virtual Center and vSphere. Configuring and Administering NIS, LDAP and FTP on Linux.
  • Installed and configured SAMBA server for Windows and Linux connectivity.

TECHNICAL SKILLS

Operating System: Unix, Red hat 5/6/7, Ubuntu, CentOS, SUSE, Solaris, Windows

Hardware & Storage: SAN/NAS, iSCSI, RAID 0/1/5/10, NFS, SAMBA, SATA, LVM

Networking: TCP/IP, DNS, DHCP, NFS, Samba, SMTP, FTP/TFTP, NIS, VPN, NETSTAT, ETHERNET

Web applications: APACHE, TOMCAT, JBOSS, WebSphere, WebLogic, MySQL, SQL DB, Oracle, No-SQL

Virtualization: ESXI, vSphere Client, VCenter Server, KVM

Shell Scripting: Bash, ksh, csh, Python, Perl, Ruby

Containerization: Docker, Kubernetes

CI/CD and CM tools: Chef, Puppet, Ansible, Jenkins, GIT

Monitoring Tools: Splunk, Nagios, Zabbix, Sumo logic, Service Now

Cloud Technologies: Amazon Web Services (EC2, S3, EBS, ELB, ASG, VPC, IAM, Glacier, Elastic Beanstalk, Red Shift, Route 53, Cloud Watch, Cloud Front, Cloud Formation, etc.), Azure.

PROFESSIONAL EXPERIENCE

Confidential

Linux / UNIX / DevOps Engineer

Responsibilities:

  • Performed Dev, QA, and Prod UNIX system troubleshooting, performance and security analysis.
  • Validated servers listed on the patch schedule against servers needing vulnerability remediation.
  • Installed and configured Red Hat Enterprise Linux 5.x/6.x and Solaris 10/11 Operating System on physical servers as well as Virtual Machines for development and test environment.
  • Deployed Java/J2EE applications to Application servers in an Agile continuous integration environment and also automated the whole process.
  • Deploying, managing, and operating scalable, highly available and fault tolerant systems on AWS.
  • Working with LDAP, Active Directory, DNS and VLAN technologies.
  • Migrated an existing on-premises application to AWS.
  • Experienced in writing terraform modules for automation the Creation of VPC-VPN from the data center to Prod environment and Cross account VPC Peering.
  • Implementing and controlling the flow of data to and from AWS.
  • Worked on creating Jenkins CI pipelines. Creating Jenkins jobs templates.
  • Experienced with writing build jobs using Maven and integrate that with Jenkins.
  • Created Terraform modules to create instances in AWS & automated process of creation of resources in AWS using Terraform.
  • Provisioned the servers (RHEL/Ubuntu) as per the request of the development and operations.
  • Created and cloned Linux Virtual Machines, templates using VMware vSphere client 5 and migrating servers between ESXI hosts.
  • Installed RedHat Linux using kickstart and applying security policies for hardening the server based on the company policies.
  • Used Kubernetes as an Open Source system for automating, deployment, scaling and management of containerized application
  • Performed package administration on Linux using rpm and yum thru RHN Satellite and subscription manager.
  • Worked with Kubernetes to make up an application into logical units for easy management and discovery.
  • Worked on Azure, AWS CloudFormation, Amazon web services to create AWS instances with S3 storage and EBS storage.
  • Performed Installation, configuration and Administration of VERITAS Volume Manager (VCS).
  • Configured and deployed of Dynatrace Monitoring system for managing all the Linux warehouse systems.
  • Did Scripting in Power shell as well as experience with windows automation.
  • Worked on SiteMinder WAM UI on configuration of policy and LDAP.
  • Implemented migration from Red hat to CentOS environment also Worked on provisioning and optimizing infrastructure resources for Oracle EBS applications on RedHat Linux.

Environment: Solaris 8/9/10, Red Hat Linux 4.x/5.x/6.x, AIX, Net Back Up, WebLogic 6.1, AWS, Ansible, SUN Solaris, SNMP, Kubernetes, Sunfire V880/440, Windows, EMC Center, SAN Switches, Tape Libraries, EMC Power path 4.0, RAID, Unix, AWS S3, AWS EBS, VMware, Puppet, Chef, GitHub, Maven, Ant.

Confidential - Cincinnati, Ohio

Linux / UNIX / DevOps Engineer

Responsibilities:

  • Involved in installing, administering and supporting more than 300 servers including but not limited to Solaris 8/9/10, RHEL 4/5/6/7.
  • Worked on monitoring tools to configure Nagios, Splunk.
  • Set up the GIT synchronization for Django (Python based web framework) based applications.
  • Experience with AWS, Jenkins, Ansible, GitHub, Nexus, SonarQube, Microservices Architecture and Docker.
  • Build artifacts (WAR's and EAR's) are deployed into a Web logic app server by integrating the WLST scripts to Shell Scripts.
  • Maintained configuration files for each application for build purpose and installed on different environments.
  • Part of a Secure Environments Team providing both routine support and third level technical support for both physical hardware and virtual environment infrastructure where we supported
  • Responsible for Server builds, system administrations, installs, upgrades, patches, migration, troubleshooting, security, backup, performance monitoring, audit remediation, customers and internal projects, documentations and consulting.
  • Deployed and managed J2EE JBoss applications.
  • Implemented load balancing using mod proxy,mod proxy balancer.
  • Installed, configured, performed tuning of Jboss application server
  • Develop and maintain a repository of Microservices through OpenShift pods.
  • Managed AWS EC2 instances utilizing Auto Scaling, Elastic Load Balancing and Glacier for our QA and UAT environments as well as infrastructure servers for GIT and Puppet, Ansible.
  • Good Experience in installing, configuring and deploying Open stack solutions.
  • Worked with Linux performance tuning to add tuning parameters to the Kernel and Optimize the Kernel.
  • Created Linux Virtual Machines, templates using VMware Virtual Client 5.5 and migrating servers between ESX Hosts.
  • Accounts and groups, setting up User environments in Linux.
  • Removed, Installed, Upgraded, and queried software packages using RPM and YUM and Performed Root password recovery in the Linux servers.
  • Configured and administered Puppet to create manifests and Modules to automate deployments and install rpms.
  • Worked on AWS Code deploy, AWS lambda, AWS CloudFormation, AWS RDS and Worked on migrating VMware to EC2 instances.
  • Administered Kickstart for RHEL 5/6 to perform image installation through network.

Environment: Solaris 8/9/10/11, Red Hat Linux 4/5/6/7, GIT, VMware ESX4.0, Ansible, Python, Veritas Volume Manager (VxVM), ZFS, Puppet, Chef, AWS EC2, Jenkins, Azure, VERITAS cluster server and zones, Nagios, Splunk, SAN, NIC bonding, VERITAS Net Backup 6.x.

Confidential

Linux / UNIX Admin

Responsibilities:

  • Experienced working on virtualization using VMware ESX
  • Experience in using LVM for creating volumes and file systems.
  • Worked on Remote login methods like DRAC. ILOM and XSCF
  • Installed patches and updated them for security enhancement addressing vulnerabilities
  • Installed RPMs, patches and upgraded OS kernel versions when necessary
  • Defined Release Process and Policy for projects early in SDLC.
  • Ensure our development partners leveraged available automation processes and tooling for all aspects of software build and management.
  • Worked daily along the boundaries of Software Engineering, QA, and Operations to ensure all Release Engineering Enterprise standards and processes are followed.
  • Hands on experience in working with Python ORM libraries.
  • Implemented administration, maintenance, upgrading and monitoring of IT System and networks.
  • Kickstart configurations for automatic Linux Installation.
  • Configured HTTP caching properties for static caching
  • Builds, installs and tests Windows, Linux, and VMware servers based on requirements from Design and Architecture or established standards.
  • Installation of Redhat and VMware both interactively and with automated Kickstart.
  • Setting up and maintaining Domain Names System (DNS) services.
  • Setup NFS and SAMBA file sharing setup on Linux and Windows servers working knowledge of TCP/IP.
  • Configuration of LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
  • Analyze and troubleshoot on an advanced level, performance of SAN backed VMware ESX infrastructure to determine proper allocation of resources to a multi-department user population with widely varying needs.

Environment: Solaris 8/9/10/11, Red Hat Linux 4/5/6/7, GIT, VMware ESXI 4.0, 5.5 and 6.0, Python, Veritas Volume Manager (VxVM), ZFS, VERITAS cluster server and zones, Nagios, Splunk, SAN, NIC bonding, VERITAS Net Backup 6.x.

Confidential

UNIX / LINUX Admin

Responsibilities:

  • Responsible for Integration and Consolidation of multiple monitoring platforms.
  • System Administration experience on Installation, Configuration, Maintenance, and Administration of RHEL 4, 5, 6,7 Sun Solaris 8,9,10
  • Assisted in multiple refreshes and migration of entire environments while meeting or exceeding project
  • Provide 24x7 Production support for all Unix systems.
  • Experienced with Server Virtualization using VMware/Hyper-V.
  • Experienced Storage Design such as Storage Area Network (SAN).
  • Experienced working on virtualization using VMware ESX.
  • Experience in using LVM for creating volumes and file systems.
  • Installed patches and updated them for security enhancement addressing vulnerabilities
  • Installed RPMs, patches and upgraded OS kernel versions when necessary
  • Created and cloned Linux Virtual Machines, templates using VMware vsphere client 5 and migrating servers between ESXi hosts.
  • Installed RedHat Linux using kickstart and applying security policies for hardening the server based on the company policies.
  • Performed package administration on Linux using rpm and yum thru RHN Satellite and subscription manager
  • Performed Dev, QA, and Prod UNIX system troubleshooting, performance and security analysis.
  • Installed and configured Red Hat Enterprise Linux 5.x/6.x and Solaris 10/11 Operating System on physical servers as well as Virtual Machines for development and test environment.
  • Dealt with application/hardware/storage and database teams on-call support
  • Teaming up with the clients/vendors to provide 24/7 technical support
  • Experienced in installation, configuration, administration, troubleshooting, tuning, security, backup, recovery and upgrades of RHEL Linux.

Environment: Solaris 8/9/0/11, Red Hat Linux 4/5/6/7, GIT, VMware ESXI 4.0, 5.5 and 6.0, Python, Veritas Volume Manager (VxVM), ZFS, VERITAS cluster server and zones, Nagios, Splunk, SAN, NIC bonding, VERITAS Net Backup 6.x.

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