Satwik K

Cell #: 813-***-****

ada76b@r.postjobfree.com

Sr. Linux/Unix Administrator

Professional Summary:

•Around 7 years of IT experience as Linux System Engineer/ Administration working on VMware/Red Hat Linux, Ubuntu, Centos, Solaris and Windows environments with HP Cloud service automation (CSA)

•Experience in Installation, Configuration, Backup, Recovery, Maintenance, Support of Linux & Solaris.

•Experience in Installing, upgrading and configuring Red Hat Linux 3.x, 4.x, 5.x, 6.x using Kick start Servers and Interactive Installation.

•Worked with Database administrators to tune kernel for Oracle installations.

•Experience with build using Jumpstart, Flash archive & Kick start Installations.

•Experience in installing, configuring and implementing the RAID technologies using various tools.

•Experience in Creation and managing user accounts, security, rights, disk space and process monitoring in Red hat Linux.

•Expertise in package management using Redhat RPM. Used RPM in several Linux distributions such as Redhat Enterprise Linux, SUSE Linux Enterprises and Fedora.

•Experience in configuration of NIS, NIS+, DNS, DHCP, WINS, NFS, LDAP, SAMBA, SQUID, postfix, send mail, FTP, remote access, security management and Security trouble shooting skills.

•Experience in using automation tools like Puppet, Chef.

•Strong knowledge and experience in Logical Volume Management (LVM), Storage and Disk Management.

•Experience in administering VSphere 4.0, 5.1, 5.5. Experience in Installation of Oracle and MySQL.

•Experience in creating of VMware Lab setup as per Internal QA team's requirement using VMware ESX servers.

•Experience in deploying several sets of Linux guest builds from VMware Templates and using PowerCLI to further guest customization the build.

•Experience in to automate the administrative tasks and management using cron and at.

•Experience in scripting for automation, and monitoring using Shell, PHP, Python & Perl scripts.

•Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.

•Creating Linux Virtual Machines using VMware Virtual Center and AIX LPARs on P550 and P570.

•Installation and configuration of Jboss, Web Sphere 5.1/6.0 Application Server on Solaris and Linux boxes.

•Experience in the CIS controls for the security vulnerabilities and patching the security patches.

•Installed and configured JBoss Application servers for DEV, QA and PROD systems.

•Experience in analyzing the IIS logs to collect information about server events, server performance, and user activity.

•Administer open source Citrix Xen servers in engineering(dev) and production.

•Managed integration with Active Directory using Centrify Direct Control.

•Implement best practices and maintain Source Code repository infrastructure (Using GIT).

•Experience in LDAP and Puppet.

•Configuring and troubleshooting networking tasks like DNS and TCP/IP. Experts on cloud technologies like AWS.

•Worked on installation of Docker using Docker toolbox.

•Developing Docker images to support Development and Testing Teams and their pipeline.

•Monitored system issues/updates for all assigned applications throughout the entire SDLC, verified requirements were accurate, functional and implemented successfully within the timelines specified.

•Experience in developing Splunk queries and dashboards targeted at understanding application performance and capacity analysis.

•Experience in Network Configuration and Troubleshooting using TCP/IP

•Daily tasks including incident management by solving tickets using service now and remedies.

•Worked on AWS to get control of computing devices.

•Experience in creating EC2 instance in the cloud(AWS).

•Excellent hands on Openstack cloud and implementation.

•Exclusive knowledge on shell and pearl scripting. Managing windows servers like patches and upgrades.

•Creating and maintaining user accounts, profiles, security, rights, disk space, and process monitoring.

•Managed day to day information delivery / data management operations, ensuring that all IBOR data provide the front office was complete, accurate, and timely.

•Managed and helped on Documentation part with the infrastructure build process.

•Experience in Veritas functionality such as Digital Monitoring products (DMP).

•Day to day ticket resolving & submit CRQ based on user requirement

•Performing regular day-to-day Systems Administration activities such as User Administrations, Disk Management, Package Install, Patch Management, Storage Management, Performance Monitoring; Log files Monitoring, Jobs Scheduling, NFS administration and Disaster Recovery/fail-over exercises. Proficient in Shell Scripting (Bash), Sed and Awk.

•Strong in troubleshooting, monitoring, training and 24/7 production support in mission critical environments Worked with systems support team to define, architect and maintain highly available production systems.

Technical Skills:

Operating Systems

Linux (RedHat 5/6/7), Ubuntu, Solaris 9,10, IBM AIX 5.x,6.1,7.1 Windows 2003/2008/2012 Server, VMWARE ESX, VCF

Hardware

Dell PowerEdge Series, ATG 10.2, HP DL Series servers, HP Blade, Sun Fire Servers - E25k, E15k, 12k, E280R, E480R, V240,420R, V440, V480, V490, V880, V890 and 4800

Data Centre Servers - E250, E450, E3000 and E3500

Tape Libraries - Sun StorEdge L20/L40/L60, L180 and Storagetek's 9840

A/B/C Fibrechannel

Arrays - Sun StorEdge 3130, A1000/D1000, EMC DMX 800 and 1000

Languages

Shell scripting, Python, PERL, C, C++, JEE

Networking

TCP/IP, DNS, NFS, NIS, SSH, DHCP, WINS, Cisco Routers / Switches and LAN

Tools

Sun Cluster 3.2, VERITAS NetBackup 6.0, VERITAS Storage Foundation Suite, Solaris Volume Manager, sendmail

Web Technologies

Apache 2.0, WebLogic 8.1/10, WebSphere, JBoss, IPlanet, IIS, HIS.

Professional Experience:

Delta Airlines, Atlanta, GA Mar ’18 – Present

Role: Sr. System Administrator

Responsibilities:

Installed, Configured and Maintained RedHat Linux Red Hat Enterprise Linux 5.x, 6.x& 7.x.

Worked on Virtualizing Red hat servers using vSphere 6.0 and managed ESX servers using vCenter and worked with ESX Cluster, VCF and VMotion.

Performed storage migrations on both Redhat and HP-UX servers

Working on building the Linux RHEL servers and Windows servers using Delta cloud platform and templates by using Vmware.

Working on monitoring larger scale servers on Vmware-vsphere, VCF and installing monitoring agents like Dynatrace, Control-M, BPA, Netback, Qradar.

Deployed Virtual machines, configured them with IP Address, installed VMware Tools and hardware.

Worked on installing the Cisco Tetration Agent on all the environments (Dev, Int, Prod).

Worked on PingID authentication installation by using Ansible Playbook in all the environments.

Virtualized the servers using Docker for the test environments and dev-environments needs, also configuration automation using Docker containers.

Worked on creating incidents, requests and changes for all the environments.

Worked on Redhat Satellite and performed patching to 7.4.

Subscribed all the servers to satellite and installed necessary packages.

Responsible for installation and upgrade of patches and packages on RHEL 5/6/7 using RPM & YUM.

Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software and directories & files.

Participated in the security awareness and training program for cybersecurity awareness.

Implemented the PingID for the data protection in around 9000+ servers.

Helped on creating the CIS controls and patched the security vulnerabilities.

Worked on creating the server access and Sudo access to the users.

Monitoring the CPU utilization and disk space and memory in Linux machines.

Managed Virtual Memory and swap space on RedHat Linux Servers.

Service Now SME for deployments on Incident, Change, Release, Configuration and Problem Management.

Used the Python language to develop web-based data retrieval systems.

Participated meetings with the higher authorities and status of infrastructure build process.

Obtained experience working in an enterprise DNS/DHCP environment.

Installed and Configured RedHat Linux Kickstart and Solaris jumpstart Servers.

Develop methods to automate routine infrastructure tasks such as deployment and maintenance duties using Ansible.

We implemented the Qualys agent for all our servers to find the security vulnerabilities.

Experience in volume and filesystem management using Logical Volume Manager (LVM).

Experience working with HP and IBM Blade centers to consolidate data centers.

Installed and configured various software applications and packages such as Apache, WebLogic, Oracle 11g & 12c.

Managed user accounts and groups on a large scale in LDAP.

Troubleshooting and performance tuning of various systems problems such as application, network and hardware related issues.

Involved with the deployment teams in troubleshooting and fixing day-to-day problems of the applications in production on 24/7 schedule.

Data trend Technologies – Delta Airlines, Atlanta, GA Apr ’17 – Jan ‘18

Role: Sr. Linux/Unix Administrator

Responsibilities:

Installed, Configured and Maintained RedHat Linux Red Hat Enterprise Linux 5.x, 6.x& 7.x, Ubuntu and Sun Solaris systems 9, 10.

Worked on Virtualizing Red hat servers using vSphere 6.0 and managed ESX servers using vCenter, VCF and worked with ESX Cluster and VMotion.

Perform backups, file replication, and script managements for servers.

Build and configure more than 2000+ Redhat Linux physical and virtual servers for Delta Airlines disaster recovery site.

Creating and deploying a VMs in vCenter / Deploying a Bare metal server for databases through Cisco UCS, Building Virtual Machines, Cloning & Migrating and Adding processors, RAM, NIC, disks to the VMs.

Registered all the servers in Redhat Satellite 6 and performed necessary patches.

Working on building the Linux RHEL servers and Windows servers using VRA Catalogs & blueprints and VRO for ISO templates.

Working on monitoring larger scale servers on Vmware-vsphere and installing monitoring agents.

Design, Implementation and Troubleshooting VMware ESX 5.5/5.0/4.1 Hosts, VSphere.

P2V and V2V conversions by using VMware Converter.

Worked on the vulnerability management and applied the patches on necessary servers.

Helped on the Audit logs for maintenance and monitoring the servers in use of Qualys agent.

Updated ESXi hosts in Prod/Dev/UAT/QA environments with newly released patches and driver extensions using VMware vCenter Update Manager.

Deployed Virtual machines, configured them with IP, installed VMware Tools and hardware.

Deployed web and enterprise applications on JBoss application server.

Providing continuous monitoring, troubleshooting, historical and real time performance monitoring of the Tomcat/JBOSS server environments.

Scheduled, deployed and managed container replicas onto a node cluster using Kubernetes

Working on infoblox for assigning IP addresses and host name registrations for Linux and windows servers.

Responsible for installation and upgrade of patches and packages on RHEL 5/6/7 using RPM & YUM.

Hands on experience in creating volumes and managing filesystems using LVM.

Involved in creating new users, groups and setup their home directories and appropriate access restrictions to software and directories & files.

Monitoring the CPU utilization and disk space and memory in Linux machines.

Managed Virtual Memory and swap space on RedHat Linux Servers.

We have done a Documentation part for the database servers like oracle 11g and 12g.

Service Now SME for deployments on Incident, Change, Release, Configuration and Problem Management.

Take care of the Logging issues of the F5 Load balancer and how it works with the syslog servers making sure the communications through the switches and routers and firewall hops work as expected.

Create plan and deploy Nagios monitoring server environment. Manage Nagios High Availability solution.

Participated meetings with the higher authorities and status of infrastructure build process.

Obtained experience working in an enterprise DNS/DHCP environment.

Implemented CICD allowing for deploy to multiple client Kubernetes/AWS environments

Installed and Configured RedHat Linux Kickstart and Solaris jumpstart Servers.

Develop methods to automate routine infrastructure tasks such as deployment and maintenance duties using Ansible.

Experience in volume and filesystem management using Logical Volume Manager (LVM).

Experience working with HP and IBM Blade centers to consolidate data centers.

Excellent understanding of JIRA workflows, permission schemes, notification schemes, screens

schemes, etc.

Installed and configured various software applications and packages such as Apache, WebLogic, Oracle 11g & 12c.

Managed user accounts and groups on a large scale in LDAP.

Troubleshooting and performance tuning of various systems problems such as application, network and hardware related issues.

Involved with the deployment teams in troubleshooting and fixing day-to-day problems of the applications in production on 24/7 schedule.

Environment: Redhat 5.x, 6.x & 7.x, Redhat Satellite server 6, SuSe 10, IBM x3650, IBM HS22 Blade Center, IBM x232, IBM x236, T2000, T5120, E220, E420, 450, V240, V880/890, E3500, BL460c, Dell M1000e, SF 440, Infra Enterprise, LDAP, EMC Power Path, EMC-Avamar NetBackup, IBM Storage Manager, HP, Oracle (10g/11gR2&12c), Cisco UCSD&UCSM, Korn shell, VMware ESX6.0, VCF, VMware vSphere ESX6.x.

Panasonic, Atlanta, GA Mar ’16 – Jan ‘17

Role: Linux Administrator

Responsibilities:

•Responsible for Installation, Configuration Management, Maintenance and Systems Development of Red hat Linux, Ubuntu, Debian, AIX and Sun Solaris systems 10.

•Perform Red Hat Enterprise Linux 6.x/7.x Administration in High Performance Cluster Environment. (HPC).

•Using VMware vCenter, created Datacenter Environment by creating VMware clusters, adding ESX hosts in the clusters, and implemented HA and DRS.

•Monitored and administered Servers for day-to-day problems, patches, user administration, and hardware failure, monitoring log files, backup, software patching, configuration changes and documentation.

•Installed, upgraded and configured Ubuntu 14.04/16.04 and Red hat Enterprise Linux 5/6 using kick start.

•Installed & configured Guest operating system like Red hat 5.x, 6.x and Sun Solaris on VMware ESX 5.x.

•Installed and configured various middleware packages such as Tomcat, Jboss.

•Experience in analyzing Log files such as WebLogic/JBoss server logs, node manager logs and Plug-in logs for troubleshooting and problem determination to resolve issues.

•Expertise in integrating KVM with Openstack and deploying VM on top of it.

•Performed Fine tuning, Kernel debugging, process scheduling, disk and file system I/O, kernel internals, TCP/IP communications.

•Experience in working with Splunk authentication and permissions and having significant Experience in supporting large scale Splunk deployments.

•Monitor server applications, use monitoring tools OEM, AppDynamics, Splunk log files to troubleshoot and resolve problems.

•Configured the LUNs assigned by the storage administrators, and managed Volumes using Logical Volume Manager (LVM) on Linux.

•Maintain CMDB for discovered devices and corresponding Configuration Items.

•Prepared sample code and applications for displaying various outcomes of API applications.

•Installed and maintain Puppet-based configuration management system.

•Designed and deployed the Nagios implementation, Implemented Puppet modules to automate configuration of a broad range of services.

•Involve different aspects of HPC installation and maintenance including installation and configuration of OS and development by puppet.

•Implemented a Docker delivery pipeline allowing for CICD of Java tomcat web service containers.

•Work experience with all phases of SDLC requirements, development, testing, support and operation.

•Managed user accounts and groups on a large scale in LDAP and NIS environments.

•Deployment and implementation of Chef for infrastructure as code initiative.

•Troubleshooting and analysis of hardware and software failures for various Solaris servers.

•Involved in maintaining the repository in the distributed environment using Git.

•Troubleshooting the issues with the application owners hosted on the F5 environment in the 3- tier environments.

•Involved with the deployment teams in troubleshooting and fixing day-to-day problems of the applications in production on 24/7 schedule.

•Dealing with abends and perform restart, force complete and cancelling of jobs in Autosys.

•Experience with autosys GUI.

•Worked on various enhancements, bug fixes and new features in IBOR and performance systems like adding new price loads, setting up new indices.

•Post build configurations, checks, updating, security checks, file systems, permissions and packages.

•Administered Science Logic EM7 monitoring platform and customer portals.

•Working with backup/storage team for backups and storage allocation for applications.

•Monitoring severs and resolving tickets assigned to group, troubleshooting different application related issues/provisions.

•Performed Memory and Swap management to improve optimization and performance of the servers.

•Installed, configured and managed Oracle 10g RAC/ 11g RAC, Standby databases.

•Configuring and Administering Oracle 11g Automatic Storage Management (ASM).

•ASM disk creation, ASM Data groups and ASM File creation.

•Installation of Packages and required Patches to the application.

•Setup, configuring and backup management using VERITAS Net Backup.

•Daily Monitoring of Net Backup activity and reporting to proactively avoid issues.

Environment: Ubuntu 14.04/16.04, SUN Solaris 8/9/10, RHEL 5.x/6.x, VMware ESX5.x, Apache 2.2.x, SuSE EL 9/10WebLogic 8.x/9.x, Sun Fire T1000, T2000, Sun M9000, M5000, M3000, Sun X3-2, X3-4, HP C Blade System, BL460c, BL420c EMC, VERITAS Storage Foundation 5, VERITAS Cluster Server 5.1, VMware.

Deloitte, Portland, OR Nov’15 - Feb ‘16

Role: Unix Administrator

Responsibilities:

•Installation, Configuration & Upgrade of Red-hat Linux, Ubuntu, Solaris 10, HP-UX operating systems.

•Configuring & handling Samba servers on Linux, Managing file system.

•Provided 24x7 on call support.

•Hands on experience in providing day to day support like resolving sever hung up, file system full, troubleshooting critical issues.

•Improve server utilization and sharing I/O resources to reduce total cost of ownership and make better use of IT assets using Power VM (Advanced Power Virtualization).

•Extensive technical knowledge and experience in enterprise virtualization environments including creating and managing Datacenter, Virtual Machines.

•Provide support to Oracle RAC and DB2 database while coordinating with database teams.

•Establish and document procedures to insure data integrity including system fail-over and backup/recovery.

•Experienced in managing LPAR with virtual memory management and memory optimization and using AIX Virtual Memory Manager (VMM).

•Designed, installed and configured HACMP cluster environment, with cascading and mutual takeover.

•Experienced in analysis of thread dumps, core dumps, server hang and high CPU utilization conditions in WebLogic and JBoss.

•Helped on the python programs in the virtual environment for the API calls.

•Creating secure SDLC activities timeline to ensure that project teams are on-track at each SDLC phase, in order to meet deadlines.

•Implemented Chef best practices and introduced Berkshelf and test kitchen to facilitate a more natural cookbook development work flow.

•Expertise in Troubleshooting on High Availability Clusters (HACMP).

•Experienced in Installing, Configuring and Upgrading HMCs.

•Create virtual media repository and LPAR dedicated virtual optical drives in the VIO servers to make new installations, cloning and migrations faster and easier.

•Performed the daily system administration tasks like managing System resources, Disk space resources, operations and security.

•Expertise in working with LVM, Disk mirroring, and Disaster Recovery.

•Responsible for Profile backup of Managed Systems and Critical backup of HMC.

•Provide support to Oracle and DB2 database while coordinating with database teams.

•Updated data in inventory management package for Software and Hardware products.

•Capacity Planning, Infrastructure design and ordering systems.

•Worked with DBA on installation of RDBMS database, restoration and log generation.

•Disaster Recovery Support using TSM.

•Used the LVM extensively; Created/Modified/Deleted Volume Groups, Logical Volumes and File systems; Added/Removed physical disks; Mirrored Volume Groups and Logical Volumes.

•Setup Jumpstart server for auto installations of servers.

•Involved in user, package and patch management and administration.

Environment: Ubuntu, IBM-AIX, Solaris 10, Oracle 11g, DB2, HACMP IBM HTTP Server, Apache Web Server, WebSphere Application Server 4.0 and Unix Shell Scripting.

Syniverse technologies inc, Tampa, FL JAN’15- Oct ‘15

Role: Sr. System Administrator

Responsibilities:

•Performed Red Hat Linux Kick start installations on Red hat 4.x/5.x, performed Red Hat Linux Kernel Tuning, memory upgrades.

•Installation & Configuration of software packages in Red hat Linux using both yum and rpm installations.

•Setting up password less login into Linux servers for users using ssh.

•Experienced in troubleshooting critical hardware and software issues and other day-today user trouble tickets.

•Troubleshoot and fix volume group and file system problems.

•Used various networking tools such as SSH, Telnet, rlogin, ftp and ping to troubleshoot daily issues also responsible to design, implement and maintain DNS, NFS and FTP services.

•Creating and Administrating File systems on Red Hat Linux.

•Installation and Configuration of VMWARE ESX servers and Created RHEL Guest VM's for Dev/ Test and production environment.

•Upgraded Servers with VERITAS Volume Manager (VxVM) from 3.x to 4.1.

•VERITAS NetBackup installation & maintenance Backup/restore on ADIC (Intelligent Storage Scalar i2000k Library Management Console) using server WindowsNT/2000& Sun Solaris server & taking backup in DLT tape & checking the job failures.

•Installation and support of various applications like JBoss 4.x, Apache Tomcat6.x, and Oracle 9i, 10g, in RHEL 4.

•Maintained Volumes and File systems for Oracle, MySQL, DB2, Sybase databases.

•Configuring DNS, DHCP, NIS, NFS and other Network Services in IBM Power Series.

•Implementation of VERITAS Cluster Server 4.1 for Oracle 9i Database Environment.

•Worked on Shell scripts and Perl scripts for automation of daily tasks using Cron tab.

•Troubleshooting Unix/Linux network and security related issues.

•Solving various system related issues: such as high load-average, reduction of waiting I/O percentage.

Environment: RHEL 4.x/5.x, Solaris 8/9/10, VERITAS cluster server 5.0, VERITAS foundation suite 5.0, Apache 2.2.x, Oracle 9i,10g, JBoss 4.2, VMware, Sun Fire x4100, x4200, x4250, T2000, T5440, M3000, Dell R805, EMC Symmetric 8830, 8840, DMX -3 NFS, and DNS, EMC, Shell, bash scripting.

Semantic Space Technologies, Hyderabad, IN Aug’13 to Oct’14

Role: Linux Engineer

Responsibilities:

•Installation, Maintenance, Administration and troubleshooting of Linux, Debian, HP-UX systems.

•Installing and configuring the DNS, DHCP servers and assigning IP addresses to client hosts.

•Configured and maintained Samba Server, NFS Server, NIS Server and clients, DNS clients and AutoFs File systems.

•Implemented Virtualization using VMware. Installed VMware ESX server on Dell Servers and configured Red Hat Linux 5.8 / Windows 2008, XP virtual machines for various applications.

•Configuring the FTP server to maintain the shared folders in organization.

•Worked on Web servers which include Tomcat 5.x/4.x/3.x & Apache Server 2.x/1.x.

•Worked closely with the SAN storage, Network and Security teams.

•Installing and updating patches on the servers using Redhat Satellite servers.

•Performance monitoring with Ksar, iostat, vmstat, mpstat and Other Tools.

•Experience in Network Monitoring Application Software such as Nagios.

Environment: RHEL 4.x, 5.6, 5.8, Windows servers 2000, 2003, 2008, XP, 7, Debian, Nagios, WebLogic, Oracle 9i, 10g, Mail server, Listserv, Veritas volume manager, VMWare ESX 3.5/4.0 & 4.1, HP Blades G5, G6, G7.

EDUCATION DETAILS:

Bachelor’s in technology with Major in Computer engineering from JNTUK, India in May - 2014.

Contact this candidate