SUMMARY:

• Over 6 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 At.
• 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, kubernetes
• 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, Atlanta, GA

Computer Programmer

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&T 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 T INC 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

Sr. Software Engineer

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 Containers 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 T INC 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

Engineer 2 nd 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.

Environnent: 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