SUMMARY

• 8+ years of experience in Linux System Administrator/DevOps Engineer with sound experience in Unix/Linux, VMware, AWS/Azure Cloud, Containerization, Version Control Systems and Configuration Management Tools.
• An accomplished Systems administrator with extensive experience in UNIX System Administration in Red Hat Linux (RHEL 5/6/7), AIX, Solaris, Centrify, SUSE 10/11/12, CentOS 5/6/7 and DevOps technologies.
• Installing Red Hat Linux using kickstart and applying security polices for hardening the server based on the company policies.
• Experienced in Installation and Configuration Nginx and Apache Tomcat on Linux and UNIX, Windows platforms.
• Proficiency in VMWare. Installation and monitoring Virtual environments with ESX Servers and Virtual Center.
• Experienced in working with SAN hardware from vendors including EMC Symmetric and Clarion, Hitachi, and Sun Storage Tek.
• Expert in automated installation, software distribution and production deployment using System Imager.
• Working experienced with Blade Logic Infrastructure on Linux OS.
• Extensive experience in Installation, configuration, and administration of AIX 4.3/5.1/5.2/5.3 /6.1 , Red Hat Linux 8/9, RHEL 3.x/4.x/5.x, Red Hat Satellite 6, OEL 4/5.x and SUSE Linux 10.x/11 and day - to-day system admin tasks.
• Configuring Audits Reports.
• Expert in Kickstart, Jumpstart and NIM installation methods for RHEL and IBM-AIX
• Created and maintained user accounts, profiles, security rights, disk space and process monitoring.
• Installation of guest OS, configuration and patch application on hosts using Tivoli Provisioning Manager TPM.
• Implemented day-to-day tasks in Red Hat Linux including upgrading RPM's, Kernel tuning, HBA Driver, configure SAN's, Multipathing and Logical Volume Manager LVM
• Experience in LPAR, having Knowledge on Dynamic LPAR and different Regatta servers like p630, p650, p670 and p690.
• Expertise in Installation and configuration of HACMP v 5.1/5.2/5.3 and migration of HACMP 4.3.1/4.5 to 5.1 using node-by-node migration without changing the cluster setup.
• Supported WebSphere Application Server, IBM HTTP/ Apache Web Servers in AIX environment for various projects.
• Knowledge of VMware, Hyper-V and azure WVD virtualization technologies
• Experience administering and supporting 3rd party cloud provider service offerings, emphasis on azure
• Design, deploy, manage and operate scalable, highly available, and fault tolerant systems on AWS/AZURE and traditional private cloud virtual environments
• Hands on experience in azure development, worked on azure web application, app services, azure storage, azure SQL database, virtual machines, fabric controller, Azure ad, Azure WVD search, and notification hub.
• Designed, configured and deployed Microsoft azure WVD for a multitude of applications utilizing the azure stack (including compute, web & mobile, blobs, resource groups, azure SQL, cloud services, and arm), focusing on high - availability, fault tolerance, and auto-scaling.
• Expertise in Microsoft azure cloud services (PAAS & IAAS), application insights, document DB, internet of things (IOT), azure monitoring, key vault, visual studio online (VSO) and SQL azure WVD.
• Experienced in installing LAMP Linux, Apache, MySQL, and PHP for different applications.
• Expert in Installing, configuring and maintaining DNS, NIS, NIS, NFS, DHCP, TCP/IP.
• Expertise in implementation and designing of disaster backup and recovery plan.
• Expertise in Networking TCP/IP, Ethernet, FTP, NFS, NIS, DNS, DHCP and RAID levels.
• Experienced in working with different teams such as Network Eng., Database team and application teams to resolve the issues and provide Customer Satisfaction.
• Experienced with using Oracle RAC for clustering and high availability in Oracle database environments.
• Efficiency in installing, configuring and implementing the RAID Technologies using various tools.
• Expert in managing a cluster of servers using Red Hat GFS.
• Expert in Installing, configuring, and maintaining Apache/tomcat, samba send mail, Web Sphere Application Servers.
• Implemented Open SSH based security for the RH-4.
• Experience in Installing and configuring Wireless network using SSL Certificate and RADIUS authentication. Set up Linux firewall router to increase network protection.
• Excellent scripting skills in UNIX Shell, Perl, and python.
• Excellent skills in analyzing, designing, implementing and system integration, Knowledge on Switches, Routers, Firewalls
• Configured and Troubleshooted TCP/IP network services.
• Performed server consolidation and virtualization using HPSA vSphere ESX 3.5/4/4.1 created VM's on Virtual Center server and installed guest OS using Virtual Infrastructure client.

TECHNICAL SKILLS

Operating Systems: Windows, UNIX, LINUX (RHEL 5/6/7, Ubuntu 12.04/16.04/18.04 , OEL 5/6/7).

Hardware and Network: DELL (PowerEdge), HP (ProLiant G7 & G8), Dell Power Edge Servers, Cisco UCS, DHCP, DNS, SNMP, SMTP, Ethernet, NFS.

Backup and Recovery tools: Dump, Restore, Tar, CPIO, Resync, Kernel re-compilation & Patches, updates.

Virtualization: VMware ESX 5.0/5.5/6.0, VMware ESXi 5.0/5.5/6.0 VMware vCenter, vSphere Client, VMware VDI, VMware Thin App.

RDBMS: Oracle, MY-SQL, PostgreSQL, Mango DB and MS SQL Server

Web servers: Web logic, Web Sphere, Apache Tomcat, JBOSS

Scripting: Bash Scripting, Python and Ruby.

DevOps Tools Others: Puppet, Ansible, Chef, Gitlab & Gitlab Runners, GitHub, Jenkins, Docker and K8’s

PROFESSIONAL EXPERIENCE

Confidential, Chicago, IL

Sr. Linux Engineer / DevOps Engineer

Responsibilities:

• Updating the infrastructure system with puppet environment.
• Some of the nodes have No puppet installed and some have version 3.x installed, so upgrading from 3.x to 5.x
• Troubleshooting the modules, if there is any break in puppet files and fixing it and finding the RCA for that.
• Working on open-source puppet for our migration and module development.
• Experienced Using GitHub as our version control tool.
• Writing manifests files upon the requirement.
• Understand the existing network topology to understand the F5 load balancer routing policies, subnet firewall configuration, DNS entries etc. to replicate in the new environment.
• Provided L2 Production support on entire IDM System, including user life cycle management of User creation, modification and termination.
• Familiarity with interpreted languages Python, Perl, Ruby, and PHP
• Experienced using Splunk as our monitoring tool to analyze the performance metrics, scalability etc.
• Installation, Configuration and administration of DNS, LDAP, NFS, NIS, NIS and Send mail on Red Hat Linux/Debian Servers.
• Installed, Configured and Maintained Active Directory Windows Server 2008
• Migration from SUSE Linux to Ubuntu Linux
• Developed automation scripting in Python core using Puppet to deploy and manage Java applications across Linux servers.
• Diagnosing failed disk drives using shell scripting for automated tasks.
• Logged events from forced crash dumps and troubleshooted server issues.
• Troubleshooting production servers with IPMI tool to connect over SOL.
• Configured yum repository server for installing packages from a centralized server.
• Installed Fuse to mount the keys on every Debian Production Server for password-less authentication.
• Installed and configured DCHP server to give IP leases to production servers.
• Management of Red Hat Linux user accounts, groups, directories and file permissions.
• Created Audit Report using au report.
• Configured, Maintained OVM
• Configured, Maintained, Installed OEL
• Installation, Configuration, and administration of VMWAREIBM Blade servers
• Experience working with production servers at multiple data centers.
• Managing and scaling complex SaaS for web services
• Experience with using Centrify.
• Applied the Clustering Topology that meets High Availability and Failover requirement for performance and functionality.
• Configured, managed ESX VM's with virtual center and VI client.
• Implemented Azure cloud integrations of enterprise architecture using Active Directory, Azure Service Bus, Azure Storage, Hybrid Connection Manager, and Azure SQL server.
• Configured Azure Cloud Infrastructure to take VM level backups using the ARM templates by creating groups and users using IAM and protect the VMs using Azure Backup vault.
• Configured and deployed Azure IaaS VMs and PaaS instances into secure Virtual Networks by configuring DNS settings, DHCP address blocks, Virtual Networks, Azure Network settings, security, and routing policies.
• Performance monitoring using Sar, Io stat, Vmstat and MP Statom servers and logged to muntin monitoring tool for graphical view.
• Installed packages with yum and rpm.
• Installation and configuration of PostgreSQL database on Red Hat/Debian Servers.
• Performed Disk management with the help of LVM Logical Volume Manager.
• Configuration and Administration of Apache Web Server and SSL.
• Implementation of scrips with bash required. Debugging experience with Python or Ruby preferred
• Configure open-ssl and generated self-signed keys for internal use.
• Experience with NoSQL MongoDB
• Password-less setup and agent-forwarding done for SSH login using sash-keygen tool.
• Created and maintained network users, user environment, directories, and security.
• Documented strongly the steps involved for data migration on production servers and testing procedures before the migration.
• Provide the support of building the server, patching, user administration tasks, deployment, software installation, performance tuning and troubleshooting and KVM.
• Provided 24/7 on call support on Linux Production Servers. Responsible for maintaining security on Red Hat Linux.

Environment: Debian and Red hat Linux and SUSE Linux, Ubuntu Linux, KVM, VMWAREIBM blade servers, Blade Logic, IBM DS8300 SAN, HP UX, WebSphere 5.x/6.x, Apache 1.2/1.3/2.x, Logical Volume Manager, Veritas NetBackup 5.x/6.0, SAN Multipathing MPIO, HDLM, Power path, VM ESX 3.x/2.x, RHEL 5.x/4.x and Windows Server Environment, Windows, Python, Puppet.

Confidential, Phoenix, AZ

Sr. Linux Administrator

Responsibilities:

• Administered, maintained Red Hat Enterprise Linux 5.10, 4.8, Ubuntu troubleshooting hardware, operating system, applications network problems and performance issues.
• Installed, configured, and administered AIX 5.1, 5.2, 5.3, Ubuntu Linux HACMP
• Installation of Red Hat Satellite 6 Server
• Worked with KVM Hypervisor to install, configure, and maintain Red Hat Linux.
• Deployed latest patches for, Linux and Application servers, performed Red Hat Linux Kernel Tuning.
• Familiarity with interpreted languages Python, Perl, Ruby, and PHP
• Performed Servers consolidation and virtualization using HPSA virtual infrastructure, VMware ESX, Virtual Center, VM tools.
• Experience with Audits in RHEL.
• Experience with using Centrify.
• Deployed OEL
• Installation, Configured OVM
• Experience in IBM cloud Services and AWS for cloud computing.
• Installation of Azure VMs on Linux system
• Scaling complex SaaS for web services
• Configured Active Directory Windows Server 2008
• Installed Check Point Firewall
• Install and configure DHCP, DNS, web Apache, IIS, mail SMTP, IMAP, POP3, and file servers on AIX and Red Hat Enterprise Linux servers
• Installing and setting up Oracle9i on Red Hat Linux for the development team
• Installed Web Logic 9i with SP5 Server and configured Domains, Admin and managed servers for Applications to be deployed.
• Experience using BMC blade logic client automation Tool.
• Used Puppet for python and system monitoring tool.
• Wrote shell, Perl, python, ruby scripts to automate daily repetitive activities.
• Provided production support of Apache and JBoss including installation, configuration, and management and troubleshooting.
• Created Multiple subscriptions for various departments to Mange azure subscription consumption
• Migrating Services from On-premise to Azure Cloud Environments. Collaborate with development and QA teams to maintain high-quality deployment.
• Deployed the initial Azure components like Azure Virtual Networks, Azure Application Gateway, Azure Storage and Affinity groups.
• Implemented virtualization using HPSA in Red Hat Linux on HP - G7, G8 and IBM-z/VM series.
• Implemented day-to-day tasks in RHEL that include upgrading rpms, kernel, HBA driver, configuring SAN Disks, multi pathing and LVM file system.
• Linux kernel, memory upgrades and swaps area and performed Red Hat Linux Kick start installations.
• Hardware Maintenance and System Administration of existing RS 6000 running AIX 40 systems in Network
• Created users, manage user permissions, maintain User File System quota on Red Hat Enterprise Linux and AIX.
• Experience in Migration of HACMP 4.3.1,4.5 to HACMP 5.1 using Node-by-Node migration without changing the cluster setup.
• Apache/Tomcat server, mail server, MySQL database, and firewalls in both development and production
• Regular maintenance of VERITAS Cluster, MC/Service guard Packages and load balancing
• Wrote Scripts for automating and testing the code using Perl, Korn.
• Manage systems using remote consoles like ILO for HP Hardware
• Setup network printers and installed client/server applications.
• Defined/setup network protocols, Network File Services NFS, and Network Information Services NIS in Red Hat Linux and AIX systems
• Network trouble shooting using 'netstat', 'ifconfig' and 'TCP dump' etc.
• Administration and Configuration in VERITAS Volume Manager/VERITAS File System
• Monitored trouble ticket queue to attend user and system calls, attended team meetings, change control meetings to update installation progress, and for upcoming changes in environment.

Environment: Red Hat Enterprise Linux 4.8,5.10, Ubuntu, VERITAS Cluster Server, Veritas Volume Manager, Oracle 11G, UX, IBM AIX, SAN, EMC VNX HP ProLiant DL 380,560 WebLogic, Oracle RAC/ASM, MS Windows 2003, 2008, 2012 server, IBM and AWS, Python, Puppet.

Confidential, San Jose, CA

Unix/Linux Administrator

Responsibilities:

• Installation, configuration and OS upgrades on AIX 5.3 Red hat Linux 6 and SUSE Linux 11.
• Installation, configuration, and maintenance of Sun Solaris 9, 10 servers.
• Configuring Kickstart/Auto gas Servers and booting the images using PXE in Red hat Linux RHEL SLES.
• Installation of Red Hat Satellite 5 Server
• Maintained Active Directory Windows Server 2008
• Installed OS by using NIM method for AIX.
• Experience in AWS, Azure
• Experience in IBM cloud Services using SAAS.
• Installation of patches and other software packages on AIX and Linux Servers.
• Wrote shell, Perl, python, ruby scripts to automate daily repetitive activities.
• Familiarity with interpreted languages Python, Perl, Ruby, and PHP
• Implementation of scrips with bash required. Debugging experience with Python or Ruby preferred
• Administration and Troubleshooting AIX servers running business critical application WebLogic applications.
• Implemented and monitored clustering on IBM p series servers using HACMP 5.4.
• Wrote Scripts for automating and testing the code using Perl
• Experience in LPAR, knowledge on creating Dynamic LPAR's and created WPAR on AIX.
• Experience with migration SUSE Linux to Ubuntu Linux.
• Modified Auto gas XML scripts for automated SUSE Linux Installation.
• Used Veritas File system VxFS and Veritas Volume Manager VxVM to configure RAID 1 and RAID 5 Storage Systems on Sun Solaris.
• Experience in scripting languages such as Python, Perl and shell
• Installed Check Point Firewall for networks
• Installed and configured SAMBA server for windows and Linux connectivity.
• Installing, configuring, and deploying applications on WebLogic Application Server 9.0.
• Implemented and configured Backup policies and Storage Units using Veritas NetBackup 6.5.
• Performed file system tuning, growing, and shrinking with Veritas File system 3.5/4. x.
• Experience working on public cloud - AWS, Azure, GCP, and/or experience working on virtualization technologies
• IaaS experience (vSphere / ESXi / AWS / OpenStack / Azure / GCP)
• Cloud platform experience with multiple services on AWS, GCP or Azure
• Experience with Cloud Service Providers such as Amazon AWS, Microsoft Azure, and Google GCP
• Installed WebLogic 8.1 with SP5 Server and configured Domains, Admin, and managed servers for applications to be deployed.
• Experience in internet services installation, configuration and maintenance WWW on Apache, SMTP on send mail, POP3, LDAP... on Linux and AIX platforms, including security of provided services, ability to troubleshoot common and very uncommon problems, high availability services.
• Configure HACMP for a clustering environment on AIX servers and administered the virtualization environments consisting of VIO servers.
• Use ILO/IMM/HMC for remote access of servers on Linux/AIX respectively.
• Experience in Implementation Apache, Tomcat 5.5 for the Java Servlet and Java Server Pages technologies.
• Administered the UNIX/Linux System for clustered HP Servers with fiber attached SAN storage.
• Maintained troubleshooted SAN and Fiber card related errors on UNIX.
• Discovered and attached LUNS provided by the Storage team to the required Unix/Linux Servers.
• Maintained Troubleshooted Storage Disks from IBM and EMC Disk arrays.
• Created disk pools and configured shared virtual disks using Symmetrix Management Console.
• Installing, maintaining, upgrading, and supporting red hat Linux systems w/ Oracle 10G RAC with Cluster Ready Services CRS and Sybase database.
• Installed and configured LAMP Linux, Apache, MySQL, and PHP for different applications.
• Expert in writing Shell scripting using Ksh/Csh/bash/Sed/Awk.
• Scripted in python to deploy and manage applications.
• Monitored servers, switches, ports etc. with Nagios monitoring tool.
• Administered 8-server red hat Linux cluster, 6-server fedora core6 cluster, IBM DS4300 Storage, Veritas Clustering VCS and miscellaneous servers.
• Experience in Servers consolidation and virtualization using UML Linux, XEN and HPSA vSphere virtual infrastructure, HPSA vSphere ESX, HPSA vSphere center.
• Implemented NIS and NFS for administrative and project requirements on AIX and Linux platforms.
• Worked closely with database administration staff to ensure optimal performance of databases and maintain development applications and databases.
• Tuning the kernel parameters based on the application/database requirement.

Environment: AIX 4.3/5.1/5.2/5.3 , Red hat Linux AS3.0, AS 4.0, Sun Solaris 9,10, SLES 9, 10, IBM System p series 520/570/590/630/650/670 , HP UX, Sun Fire 6800, 4800, V890, V880, V490, V480 and V210, Veritas Volume Manager, IBM HACMP 5.4, Veritas Cluster Server, DS8300, Python, WebSphere ND 5.1, XD 5.1, WebLogic 8.1, Samba, Oracle 9i/10g, Veritas

Confidential, Westlake, TX

Linux Admin

Responsibilities:

• Performed installation, configuration, and maintenance of red hat Linux 5. 3.
• Handling HP and DELL servers running on red hat Linux and SUSE Linux 9 and GNU.
• Linux kernel, memory upgrades and swap area. Red hat Linux Kickstart Installation. Configuring DNS, DHCP, NIS, NFS in Red hat Linux other Network Services.
• Performed daily backups, restoration of data as per requests from developers using Veritas NetBackup.
• Experience in Servers consolidation and virtualization using HPSA vSphere virtual infrastructure, HPSA vSphere ESX.
• Write Shell Scripts as cron jobs and deployment scripts for various reasons in VIM editor.
• Audited the servers after the installation and prepared documents.
• Worked on EMC disk storage to allocate disk space.
• Network trouble shooting using 'ndd', 'traceroute', 'netstat', 'ifconfig' and 'snoop' etc.
• Provided Security and troubleshoot the network issues in environment with 2500 users with VPN.
• Installed of all the required Software, patches, documentation, licensing trouble shooting.
• Network Monitoring Using Nagios tool.
• Setup various user profiles, environment variables/security to ensure smooth operation.
• Monitoring servers using BMC patrol Express.
• Good understanding of web services software architectural and design issues.
• Monitored overall system performance, performed user management, system updates and disk storage management.
• Created users, manage user permissions, maintain User File System quota on red hat Linux and AIX.
• Production support of Apache and JBoss including installation, configuration, management, and troubleshooting.
• Implementing RAID 1 and RAID 5 on mission critical servers such as domain controllers and file servers.
• Setup of full networking services and protocols on UNIX, including NIS/NFS, DNS, SSH, DHCP, NIDS, TCP/IP, ARP, applications, kickstart and print servers to insure optimal networking, application, and printing functionality.
• Installed and configured Sudo for users to access the root privileges.
• Performed troubleshooting of CPU bottle necks, memory bottle necks and gave suggestions on performance improvements. Analyzed performance issues through PERFPMR.
• Wrote Technical documentation for various projects and worked with technical writer to finalize the documents.

Environment: Red hat Linux 4.0,5.0, HPSA vSphere ESX Server 3.5.0, JBOSS, Remedy, EMC Power Path, windows 2000/2003, Sun Solaris 8,9,10, Solstice Disk Suite, AIX 5.3, Veritas Cluster Server, Enterprise Security Manager, WebLogic 8.1, Oracle 9i/10g.