SUMMARY

• Over 8 Years of experience in heterogeneous and complex IT environments.
• Expertise in Unix, Red Hat Linux Enterprise 5,6, CentOS and Solaris 10, Networking, Programming (Shell and Perl scripting), Databases, Software, and Hardware.
• Experience includes installation, configuration and maintenance of Applications on Solaris, Red Hat Enterprise Linux, different flavors of UNIX and all versions of Windows.
• Experience in supporting Openstack Cloud.
• Experience in Nova compute and Neutron
• Worked on designing and implementation of Datacenter migrations
• Installing, Configuring and Maintaining DNS, NFS and Auto FS.
• Hands on experience in administration and maintenance of application services like Mail, HTTP, Apache Tomcat, DHCP, SMTP, and FTP.
• Involved in DevOps support including supporting Openstack Cloud with apigee Edge cloud installation.
• Involved in supporting automation using Chef, which involved creating cookbooks, databags and bootstrapping client on chef server.
• Created Linux and Ubuntu VM’s on Openstack hypervisors.
• Worked with Protocol’s like NFS and TCP/IP on Linux server environment and LDAP client - server model to retrieve and manipulate data.
• Implemented and enhanced scripts using Bash and Python Scripting and experienced in scheduling jobs using Crontab and Confidential .
• Experience in administrating the Cassandra and Zookeeper
• Experience in administrating the Redhat Messaging (apache Qpid) a core component of Apigee
• Implemented High Availability in Linux with HeartBeat
• Implementing the Dnsmasq as local Dns servers for environment
• Implemented Software Load Balancers with Haproxy and Nginx
• Worked on Gitlabs and Github for Infrastructure code management.
• Installing and hosting Docker Containers
• Worked with Solaris Packages and Patches, Red Hat Package Manager (RPM) and YUM.
• RDBMS installation and support including Postgress and Maria DB with Percona.
• Troubleshooting system calls via strace and truss
• Familiarity with various monitoring tools for monitoring large-scale enterprise networks.
• Performed kernel-tuning via ndd and sysctl, performance tuning for different web and java related applications on RHEL and Solaris Servers and involved Kernel and Core dump analysis..
• Experience in Performance monitoring, usage and load of the system, changing kernel parameters for better performance.
• Experienced in documenting various maintenance activities and upgrades and changes in the network architecture.
• Experience in providing day-to-day user administration like adding/deleting users and managing user’s queries
• Excellent ability to handle significant workload with experience in managing multiple projects concurrently in a fast pace environment.

TECHNICAL SKILLS

OS: Solaris10, Red Hat Enterprise Linux Server 5.0 and 6.0

Hardware: Sun Ultra Enterprise Servers (T2000/T5220), Sunfirev880/V480/ V440) Sun workstations (Ultra 5, 10, 20,80 Blade 100,150, 2000)

Server Monitoring Tools: Nagios, Topaz, Splunk

Networking: DNS, DHCP, NFS, FTP, NIS, SSH, IP-Tables, Apache, TCP/IP

Virtualization: Openstack

Volume Management: Redhat LVM, Solaris Volume Manager

Tools: Openstack compute, Neutron, Chef, Github, Docker, apigee, Jenkins, Wireshark and Dynect, Dnsmasq

PROFESSIONAL EXPERIENCE

Confidential, Alpharetta, GA

Linux/Openstack Admin

Responsibilities:

• Managing developers.att.com and resolving issue related to Api developers
• Managing the issues pertaining to apache service mix and karaf
• Troubleshooting ruby gems issues on different VM’s
• POC of crafter with alfresco for different ATT& Confidential sites
• Building up new Environments using neutron and Openstack nova
• Installing Apigee Edge cloud edition for exposing client API
• Getting Cassandra out of Ring for V2V migration on different hypervisor
• Troubleshooting issue in Openstack VM migrations where in Qemu image not copied well.
• Sinning up new server in environments using Openstack nova
• Configuring Docker Contianers for Jenkins as Gitlabs as when required
• Configuring Zookeeper and Cassandra nodes as when required
• Configuration and Management of Apigee gateway and all the related components
• Troubleshooting internal kernel issues and to give fix using Strace and Sysctl.
• Troubleshooting JVM related issues by enabling debugging options for java process
• Creating and updating Cookbooks for infrastructure automation on Chef
• Troubleshooting issues related to memory leaks in JVM.
• Automating requirements using Python created import module for whole project.
• Checking out updated infra code to Github and Gitlab.
• Adding users via chef, editing Databags on chef server for giving sudo access and user creation.
• Rebooting the tenants as when required using nova.
• Managing Pakages Via apt-get and yum
• Deploying Application using Jenkins
• Troubleshooting Network related issues where other end of TINC tunnel is not responding.
• Viewing and controlling the Processes running on the system and automating repetitive tasks.
• Developed the Preventive maintenance script for doing the health check of the servers
• Monitoring and suggesting remedial action based on various system level statistics (Disk I/O, Network I/O, CPU usage etc.).
• Checking and repairing file systems and monitoring file system usage.
• Implementing various security tools like SETUID, SETGID and STICKY BIT on file system for providing secure access.
• Troubleshooting NFS related issue.
• Configuring and administrating Swap space on Linux.
• Configuration and administration of various devices on Solaris and Linux
• Troubleshooting boot related problems.
• Administrating software Package like adding, deleting software packages in Solaris..
• Recovering the root password of servers
• Configuring New Server on the network
• Networking - NFS, Telnet, FTP, SSH, ifconfig
• Rebooting the system for maintenance activity
• Installing and upgrading Service Mix, Alfresco and Crafter
• Restricting the access to system via Iptables and Security Groups
• Creating and Attaching volume via nova and Cinder
• Partition and formatting hard drive and volumes as per need
• Troubleshooting Dnsmasq related issues

Environment: Openstack nova, neutron and cinder, Chef, Apigee, Ubuntu 12.04,14.04, Centos 6.5, Cassandra, Zookeeper, Tinc, postgress, unicorn, nginx, haproxy, monit, apache service Mix, Dnsmaq, Github, git, Jenkins, Python, Alfresco, Crafter

Confidential, Alpharetta, GA

Sr. Linux Admin

Responsibilities:

• Building up new Environments using neutron and Openstack nova
• Installing Apigee Edge cloud edition for exposing client API
• Getting Cassandra out of Ring for V2V migration on different hypervisor
• Troubleshooting issue in Openstack VM migrations where in Qemu image not copied well.
• Sinning up new server in environments using Openstack nova
• Configuring Docker Contianers for Jenkins as Gitlabs as when required
• Configuring Zookeeper and Cassandra nodes as when required
• Configuration and Management of Apigee gateway and all the related components
• Troubleshooting internal kernel issues and to give fix using Strace and Sysctl.
• Troubleshooting JVM related issues by enabling debugging options for java process
• Creating and updating Cookbooks for infrastructure automation on Chef
• Troubleshooting issues related to memory leaks in JVM.
• Automating requirements using Python created import module for whole project.
• Checking out updated infra code to Github and Gitlab.
• Adding users via chef, editing Databags on chef server for giving sudo access and user creation.
• Rebooting the tenants as when required using nova.
• Managing Pakages Via apt-get and yum
• Deploying Application using Jenkins
• Troubleshooting Network related issues where other end of TINC tunnel is not responding.
• Viewing and controlling the Processes running on the system and automating repetitive tasks.
• Developed the Preventive maintenance script for doing the health check of the servers
• Monitoring and suggesting remedial action based on various system level statistics (Disk I/O, Network I/O, CPU usage etc.).
• Checking and repairing file systems and monitoring file system usage.
• Implementing various security tools like SETUID, SETGID and STICKY BIT on file system for providing secure access.
• Troubleshooting NFS related issue.
• Configuring and administrating Swap space on Linux.
• Configuration and administration of various devices on Solaris and Linux
• Troubleshooting boot related problems.
• Administrating software Package like adding, deleting software packages in Solaris..
• Recovering the root password of servers
• Configuring New Server on the network
• Networking - NFS, Telnet, FTP, SSH, ifconfig
• Rebooting the system for maintenance activity
• Installing and upgrading Service Mix, Alfresco and Crafter
• Restricting the access to system via Iptables and Security Groups
• Creating and Attaching volume via nova and Cinder
• Partition and formatting hard drive and volumes as per need
• Troubleshooting Dnsmasq related issues

Environment: Openstack nova, neutron and cinder, Chef, Apigee, Ubuntu 12.04,14.04, Centos 6.5, Cassandra, Zookeeper, Tinc, postgress, unicorn, nginx, haproxy, monit, Dnsmaq, Github, git, Jenkins,Python

Confidential

Engineer 2nd Level Assurance

Responsibilities:

• Viewing and controlling the Processes running on the system and automating repetitive tasks.
• Implementing bash scripts for health check on servers of Ericsson Charging system 4.0
• Maintaining Charging system 4.0 Ericsson applications on various Linux and Solaris Servers.
• Developed a method for taking the backup in Linux RHEL 5.0 IO, a got the Best Idea Award for Q1 2013. The script has reduced the 904 man hours for my project.
• Developed the Preventive maintenance script for doing the health check of the servers.
• Developing java codes and C codes.
• Configuring apache server for gui access.
• Performing User Administration by creating, maintaining User’s accounts and groups and setting up User environments.
• Monitoring and suggesting remedial action based on various system level statistics (Disk I/O, Network I/O, CPU usage etc.).
• Formatting and partitioning of hard disk on X86 and SPARC systems.
• Checking and repairing file systems and monitoring file system usage.
• Implementing various security tools like SETUID, SETGID and STICKY BIT on file system for providing secure access.
• Configuring audit logs in Solaris and Linux.
• Troubleshooting NFS related issue.
• Configuring and administrating Swap space on Solaris and Linux.
• Configuration and administration of various devices on Solaris and Linux.
• Troubleshooting boot related problems.
• Administrating software Package like adding, deleting software packages in Solaris..
• Recovering the root password of servers.
• Configuring New Server on the network
• User account administration and management.
• Networking - NFS, Telnet, FTP, SSH, ifconfig
• Rebooting the system for maintenance activity.
• Ensuring healthy system backup (UFS/ZFS) of various Ericsson Nodes running on Solaris platform on daily basis.

Environment: Redhat EL 5/6, Solaris 9 and 10, Sun Fire V480, V490, V440, Sun Enterprise T5220, T5120, Solaris Volume Manager, Oracle 11i and Oracle Timesten

Confidential

Support Engineer (Implementation & L2 support)

Responsibilities:

• Maintaining Confidential -Cellone OTA servers for complete Confidential South Zone
• Installation & Configuration of Sun Solaris and Linux Operating System on SPARC Machines SUN Fire T5140/ X4150/T2000
• Experience in configuration of service like NFS, system package, system package and telecom related application
• Experience in scheduling incremental and full back and restore on daily, weekly basic using Legato Networker application and SUN autoloader SL24
• Experience in troubleshooting server (SPARC T5140/X4150/T2000) from maintenance mode & console/ILOM/ALOM mode
• Active member in Maintaining and troubleshooting SUN edge storage equipment like SUN edge 2540 /3500 & monitoring disk usage
• Experience in VERITAS cluster and using on daily basis to provide load balancing and high availability of internet services to Confidential subscribers
• Installation of SIM related application like MYSerivePortal, DP,BUM, BOM, PUSH tool etc,
• Scheduling scripts for pushing GPRS device setting to Confidential -cellone subscribers and burning new service to SIM card. installation and troubleshooting different packages like java, apache tomcat on Linux operating system good knowledge in Unix shell scripting
• Involved member in WAP, SDP & CBC integration via PAP, Parlay-x & SMPP protocol respectively & preparing MOP/ documentation of all integrations for further reference.
• Active member in deploying Smart Trust ADPS server (Advertisement Push Server) for sending business/commercial messages to subscribers from OTA platform. Using the ADPS we can send WAP/MMS/Inbox and Flash messages to the subscribers.
• Handling complete Operations and Maintenance of OTA System, Testing and Launching New WIB Services, Report generation, Automation of Task. Customization of application on customer demand.

Environment: SUN Fire T5140/T2000/X4150/V480/V240, SUN Storage Tek 2540 SUN storage SL24/SL8 Tape autoloader, SUN Solaris 5.10, red-hat 5.1, smarttrust applications (DP,TPM,TS, MySerivcePortal, Pushtool)