Shiva Kumar

Summary:

Over ** plus years of work experience in Linux /Unix Engineer.

Experienced in architect and manage the infrastructure which is highly scalable which runs mission critical applications.

Managed infrastructure automation using Terraform.

Experience in installation, configuration, backup, recovery, maintenance, and support of RedHat Linux and HP-UX.

Created ansible playbooks to automate the build process of Open stack VMs.

Knowledge on build and configure servers using RedHat Satellite server.

Implemented chatops for the deployment and OS patching. Which saved many man hours for the client.

Built and deployed Docker containers to break up monolithic app into microservices, improving developer workflow, increasing scalability, and optimizing speed.

Deploy internal application software updates in multiple environments, from Development to Production, per established Change Control process.

Installed and setup RHEL for Web application servers like WebSphere, WebLogic, tomcat and Oracle databases, RAC environment.

Worked on OS migrations, upgrade and BIOS and NIC firmware upgrades.

Configured multipath for SAN Disks in Hitachi HDLM, EMC Power path and AIX MPIO.

Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in RedHat Linux and HP-UX.

Experience in Installation, Configuration, Implementation, Crash Recovery, Performance Tuning, Maintenance, Security Setup & Troubleshooting.

Experience in configuration of NIS, NIS+, LDAP, DNS, DHCP, NFS, LDAP, Auto mount, Send mail, FTP, remote access, Active Directory, Security management and Security trouble shooting skills.

Extensively worked on tools like Veritas Volume Manager (vxvm) and Veritas file System.

Experience in writing shell scripts to automate the administrative tasks.

Experience on webservers such as Tomcat 5.x/4.x/3.x & Apache Server 2.x/1.x.

Experience in Installation of Oracle, MS SQLServer and MYSQL.

Worked with tools like Puppet to centralize and standardize configuration on the servers.

Worked on VMWARE ESX 3.0 virtualization for testing and implementing servers.

Wrote system design, implementation plans, and updated documentation in share drive.

Technical Skill Set:

Operating Systems

Linux (RedHat 3.x, 4.x, 5.x,6.x,7.x SUSE 10, Cent OS), HP-UX 11.11/11.23/11.31,Solaris 10,11,Windows 2000/NT/2003R2, VMware ESX 2.x, 3.x, 4.x, Openstack Nova 14.1.0

Hardware

HP ProLiant DL300,DL500, HP Blade BL360,Dell PowerEdge R900,R740xd/R740/R730xd/R730/R720xd/R720/R630/R620, DELL PowerEdge 2950, HP superdome servers, IBM Blade servers,EMC Symmetrix, Hitachi arrays .

Programming Languages

C, C++, HTML, BASH, Ansible, Perl .

Web/Application Servers

Apache Server 2.x/1.x, Tomcat 4.x/5.x, JBoss 4.0.x/4.2.x, Web Sphere Application Server 5.x/6.x, WebLogic Server 5.1/ 6.1/7.0/8.1/9.1/9.2, HTML, DHTML, XML.

Networking:

TCP/IP, NIS, NFS, DNS, DHCP, Cisco Routers/Switches, WAN, SMTP, LAN, FTP/TFTP.

Professional Experience:

Citi Group, Dallas, TX Apr‘2022- Current

Sr. System’s Engineer

Responsibilities:

Provided solutions and directions to structured Global cross-regional teams in administering

and managing mission critical infrastructure and business application systems running on RedHat Linux environments.

Experienced in Installation and configuration of Veritas Cluster on RedHat servers and configuring Service Groups and Resource Groups.

Make sure all the servers are UpToDate with VTM patching and resolving issues if any with KRI exceptions.

Setup the CI/CD with Jenkins, Cloud Formation Templates and Ansible.

Virtualized the servers using the Docker for the test environments and dev-environments needs

and also configuration automation using Docker containers.

Worked on creation of custom Docker container images, tagging and pushing the images.

Experienced in SAN, volume management, filesystem administration and RAID configuration to ensure data availability.

Engage hardware and software vendors including Red Hat, EMC, VMware, Symantec, Oracle, HP, Dell, Sun and IBM support personnel to identify, diagnose and resolve issues related to kernel panic, slow backup and system crash.

Experienced in vulnerability tracking, reconciliation and remediation of software packages and security patches

Installed Veritas Netback up client on all environments Solaris/ Linux.

Worked on restoring files from tapes using Veritas netbackup.

Performed BIOS, driver and firmware updates using remote consoles – HP ILO, Dell DRAC.

Installed VTM’s on Linux, Solaris, operating systems to maintain the systems up to date.

Experienced in Problem Management – open incident ticket, co-ordinate with vendor and resolve

user problems.

Troubleshoot application issues, database issues with application and database team.

Monitored and tracked progress of scheduled change implementations and provide metrics to Senior Management.

Providing 24x7 application and server support.

Environment: RHEL 7.x/6.x,Hp DL 380 G10 servers, Dell Poweredge R730, Oracle 11g/10g/9i, Logical Volume Manager, Ansible, Jenkins, Dockers, SAN Multipathing (MPIO, HDLM, Powerpath), VM ESX 3.x/2.x, VSphere,Vmotion,Veritas Volume Manager 3.5/4.x, Veritas Net backup 5.x/6.0.

Epsilon July‘2013 – Mar’2022

Linux/Unix Engineer

Responsibilities:

Extensive experienced in working in the environment which is a combination of Physical Servers in Datacenters, Cloud env like Open stack, AWS and VMware.

Installation, Configuration and maintain of Solaris 10/11, RedHat Linux 5.x/6.0/7.0 OS and CentOS platforms.

Automated the build process of Open stack VMs using ansible playbooks.

Deployed configuration management and provisioning of AWS using terraform.

Wrote terraform scripts.

Implemented chatops for OS patching which saved significant time.

Played a significant role in establishing operational processes for a fast-growing distributed cloud platform.

Improve deployment process within AWS.

AWS services administration: IAM,VPC,Route53,EC2,S3,CodeDeploy,Redshift,RDS,cloudwatch,cloudFormation.

Established backup policies, wrote scripts, and implemented schedule to comply with availability needs of all instances.

Involved in large data center migration – planning, designing, moving servers to new data center, coordinating & trouble shooting issues with various data center, network, application and storage teams.

Installing hardware, 3rd party software and latest OS and patches to keep the latest and most up to date software configurations.

Installed/Configured WebSphere 5.x/6.x and WEBLOGIC Application Servers.

Administration of WebSphere Application Server 6.x with Network Deployment, and Extension Deployment, on RedHat Linux.

Installation and configuration of Oracle RAC 11g on RedHat Linux cluster nodes.

Configuration and administration of DNS, LDAP, NFS, NIS, NIS+ and Sendmail in RedHat Linux.

Configuration and Maintenance of AutoFs in Linux and HP-UX.

Configured SAMBA to get access of Linux shared resources from Windows.

Tested and implemented Root disk mirroring.

Configuration and Administration of Apache, Tomcat Web Servers and SSL.

Password-less setup done for SSH login using ssh-keygen tool.

Environment: RHEL 7.x/6.x/5.x/4.x,HP-UX 11.x, IBM blade servers, Hp superdome servers, WebSphere 5.x/6.x, WebLogic, Apache 1.2/1.3/2.x, Tomcat, Oracle 11g/10g/9i, Logical Volume Manager, AWS, Openstack,Ansible,Jenkins,Dockers,Veritas NetBackup 5.x/6.0, SAN Multipathing (MPIO, HDLM, Powerpath), VM ESX 3.x/2.x, VSphere,Vmotion and Windows 2003/NT

Citi Group, Dallas, TX Oct ‘2012- Jun ‘2013

Sr. System Administrator

Responsibilities:

Installation, Configuration, Administrating and Troubleshooting of Solaris 10, Red Hat Linux 5.x/6.0 OS platforms.

Installed SOE related Software’s on Red Hat Linux 5.x/6.0, Solaris 10 from Tivoli Provisioning Manger.

Experienced in Installation and configuration of Veritas Cluster on RedHat servers and configuring Service Groups and Resource Groups.

Created Volume groups, Physical Volumes and Logical Volumes in RHEL5.x/6.x

Installed supported version of Java, JDK, Jre pkgs for weblogic and websphere .

Installed various pkgs on Solaris, Linux, using pkgadd, rpm commands.

Configuration of DNS, APACHE, MAIL, DHCP & FTP Servers in RedHat Linux.

Created users, groups, provided access to Linux, Solaris, and using Kerbores LDAP and pbrun.

Experience in deployments using automation tool TPM.

Installed Veritas Netback up client on all environments Solaris/ Linux.

Provided pbrun,scsu, scsudo access to the users from the LDAP.

Worked on restoring files from tapes using Veritas netbackup.

Good experience in Shell/Perl Scripting and applying Patches, Scheduling jobs and opening vendor tickets

Installed VTM’s on Linux, Solaris, operating systems to maintain the systems up to date.

Supported for various Trading applications to Administrate the applications on various platforms.

Troubleshoot application issues, database issues with application and database team.

Supported 24/7 on call for Linux/Solaris servers, applications and databases.

Environment: Redhat Enterprise Linux 5,6, Solaris 10,11,VXFS, LVM,RAID,Veritas Volume Manager 3.5/4.x, Veritas Net backup 5.x/6.0, DNS, NIS, NFS,apache, Sendmail, Oracle 10g, Websphere 5.x/6.x, VM ESX 3.x/2.x, Vsphere,Vmotion.

Pepsico, Dallas, TX May ‘2010 – Oct ‘2012

Sr. System Administrator

Responsibilities:

Installed and Configured RedHat Linux and HP-UX Servers.

Implementation of Kickstart and administration.

Day to day duties for Unix/Linux server maintenance and support to developer teams for their issues with applications, tuning, troubleshooting, and software running on Unix/Linux Servers.

Installing hardware, 3rd party software and latest OS and patches to keep the latest and most up to date software configurations.

Installed/Configured Websphere 5.x/6.x and WEBLOGIC Application Servers.

Administration of Websphere Application Server 6.x with Network Deployment, and Extension Deployment, on RedHat Linux.

Installation and configuration of Oracle RAC 11g on RedHat Linux cluster nodes.

Worked with Oracle Database Administrators and reviewed the required maintenance tasks.

Installed RPM packages on RedHat Linux Servers, updated with the help of yum and up2date.

Managed builds and Deployments, Created Ant Scripts to customize EAR, WAR and JAR files and the application is deployed on WebSphere server.

Management of RedHat Linux and HP-UX user accounts, groups, directories and file permissions.

Configuration and administration of DNS, LDAP, NFS, NIS, NIS+ and Sendmail in RedHat Linux and HP-UX.

Configuration and Maintenance of AutoFs in Linux and HP-UX.

Configured SAMBA to get access of Linux shared resources from Windows.

Day to day Linux and HP-UX server hardware support, problem and change ticket implementations, composing scripts, OS builds & upgrades along with day-to-day Storage & UNIX Administration.

Tested and implemented Root disk mirroring.

Taking Backup and restoring the data using mksysb.

Performance Monitoring and Tuning using iostat, vmstat and netstat.

Used Puppet to centralize and standardize configuration on the servers.

Configuration and Administration of Apache, Tomcat Web Servers and SSL.

Creating and managing VM’s through Virtual Centre and VI client.

Scripting for automating changes during move to speed up process.

Responsible for Monitoring and fine tuning system and network performance for Linux systems.

Password-less setup done for SSH login using ssh-keygen tool.

Installed Configured EMC disk devices in Linux servers.

System Backup using tar, cpio for local systems and Veritas Netbackup for enterprise wide backup and recovery.

Provided continuous after hours support for storage and backup systems, working close with other teams in the organization to avoid any business or service impact.

Environment: RHEL 6.x/5.x/4.x,HP-UX 11.x, IBM blade servers, Hp superdome servers, Websphere 5.x/6.x, Weblogic, Apache 1.2/1.3/2.x, Tomcat, Oracle 11g/10g/9i, Logical Volume Manager, Veritas netbackup 5.x/6.0, SAN Multipathing (MPIO, HDLM, Powerpath), VM ESX 3.x/2.x, Vsphere,Vmotion and Windows 2003/NT.

Education:

University of South Alabama Masters Degree.

SRTIST Bachelors Degree

Contact: 251-***-****

Email: ad2ebi@r.postjobfree.com

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