SUMMARY

• Ten years of experience in Telecom domain, Retail and Service Industry as Devops Engineer.
• Expertise in Automated installations, continuous integration, deployment, configuration and packaging through use of scripting (BASH, Perl, Ruby, Python, etc.), orchestration (Foreman, Katello, Kickstart) and configuration management tools (Puppet, Ansible, Chef)
• Experience in Jenkins and Maven setup, installation, configuration and integration
• Experience in setting up Elastic search (ELK) for troubleshooting slow queries and log analysis
• Build elasticity and scalability of applications within AWS, dialing capacity up and down based on demand.
• Experience in install and configure Nosql DB like Mongodb,Cassandra,Couchbase
• Yum repository setup and configure SVN/GIT
• Strong knowledge of web technologies (ASP.NET, C#, MVC, HTML5, CSS3, AJAX, WebAPI, WCF, REST, SOAP)
• Experience of DevOps tools (GIT, SVN, Maven, Ant, Jenkins, JIRA, etc.)
• Experience with Java programming language, related optimization techniques, and design patterns.
• Good understanding of n - tiered Web Application architecture and hosting environments
• Experience with JavaScript, HTML5 & CSS3
• Experience with Java application servers (WebLogic, Tomcat)
• Experience with relational databases (e.g. Oracle, MS SQL Server)
• Knowledge and experience in developing SOA/Web Services (e.g. REST, SOAP) based applications
• Experience working in Agile/Lean development environment (SCRUM preferred)
• Excellent software development habits (unit tests, in-code documentation, etc.)
• A good understanding of NFS, ISCSI, DNS, DHCP, SMTP, IMAP, Apache, Tomcat, MySQL/Percona, Oracle, LDAP, RADIUS, SNMP and TCP/IP(IPv4 & IPv6)
• Understanding the OnPrem and Cloud Infrastructure layouts and its dynamic challenges
• Deep insight on scalability and availability with major focus on networking concepts of enterprising extending to public/private clouds
• Strong ability to perform troubleshooting, problem resolution, analysis and recovery
• Solid knowledge of RHEL/Centos and/or Ubuntu/Debian Linux
• Proficiency in systems scripting (i.e. Python, Perl, awk, sed, Bash, etc)
• Knowledge of networking fundamentals (i.e. VLANs, Switches, Routers, etc.)
• Familiarity with enterprise backups, clustering, virtualization, cloud services and high-availability in a Linux environment.
• Ability to monitor alerting systems and servers
• Strong MySQL skills and brief general system administration skills on UNIX/HP Open VMS, Linux and Windows environment.
• Used Puppet for automation for the code push on all the MySQL Vms
• JVM tuning
• DataStax opcenter/nodetool for managing Cassandra cluster
• Monitor cluster availability and performance
• Tune the performance of Java Virtual Machine (JVM), caches, and compaction
• Experience in 24*7 support

TECHNICAL SKILLS

Verticals/Domains: Telecom, Retail, Service, Internet

Functional Areas: Quality Assurance, Testing, Maintenance, Technical Documentation

Databases: Cassandra,Mongodb,MySQL, Oracle

Development/Productivity Tools: PL/SQL, Vi, Selenium, Toad, VSTS, SQL Velocity

Software Engineering Methodologies/Tools/Technologies: Chef,Puppet,CVS, Clear Case, Eclipse, SQL Navigator, Agile SCRUM

Network / Telecom Software and Protocol: Call Features, Call Processing, Voice Over IP Protocols (SIP, 3GPP, MGCP, Megaco)

Programming and Scripting Languages/Framework: C/C++, HTML, Java,JDBC,XML, Maven, JUnit, htmlunit, jwebunit, JSP, javascript, AJAX, ASP.net,C#, Gallio/Watin, MbUnit, Linq

Debugging tools and others: GDB, Performance analyzing tool -gprof, analyzing ethereal osniffer traces, FireBug, Jira, IE developer tool

PROFESSIONAL EXPERIENCE

Confidential

Responsibilities:

• Automation and provisioning of application services through use of scripting (BASH, Perl, Ruby, Python, etc.),configuration management tools (Puppet, Ansible)Installations, configurations, administration, and tuning of MySQL
• Automate build of NosqlDb mongodb,Cassandra,couchbase and RDBMS like Mysql
• Implement and execute automation and orchestration strategies on all supported platforms and environments to improve overall speed, security and quality of application deliverables
• Developed automation and deployment utilities using Bash,PowerShell, Python.
• Automation with Puppet for the VM build using openstack cloud
• Used Logging and Monitoring tools - Nagios, ELK for tomcat/apache and Mongodb,Mysql
• Performed RCA and developed resolution and prevention strategies
• Created automation and deployment templates for relational and nosql databases including MSSQL, Mysql, MongoDB, Cassandra.
• Managed Amazon Web Services:configuration and deployment of all required infrastructure, administrative tasks
• Installations, configurations and administration of Percona Galera cluster.
• Performed automated failover of master
• Migrated databases from standalone MySQL to Galera cluster.
• Used Puppet for automation for the code push on all the MySQL Vms
• Monitoring MySQL databases usingSeveralNines Cluster Control.
• Performed MySQL Replication setup and administration on Master-Slave and Master-Master.
• Setting up backup using xtrabackup(innobackupex tool)and mysqldump
• Configuring Zenoss for OS and Database health monitoring.
• JVM tuning using jstat, jmap, Jconsole.
• Monitoring clusters using Opscenter and nodetool
• Automating Backup and recovery.
• Enabling the garbage collection log for monitoring and performance tuning.
• Configuring Nagios for OS and Database health monitoring.

Confidential

Devops

Responsibilities:

• Configuration management using Puppet.
• Managed source code using SVN and Git
• Managed data center moves. E.g. moving applications and customers from one hosting environment to another.
• Monitored health and performance of hosted applications, and executing relevant maintenance tasks or fixes
• Continuous Integration/Deployment with Jenkins
• Installing MySQL modules using Puppet.
• Wrote custom puppet modules for managing the full application stack
• Implemented GitLab for version control of puppet modules and process documentation
• Performed log management using splunk
• Used puppet module to install Apache Cassandra from the DataStax distribution
• Automated and monitored infrastructure deployments using Puppet
• Scheduled snapshots of volumes for backup and find root cause analysis of failures, scheduled downtimes and maintenance of cluster.
• Automated deployment of web applications, bindings and configuration
• Network cloud support AWS/AZURE
• Build NoSQL system heavy write intensive applications using Cassandra
• Configure Cassandra Cluster with Multi DC configuration.
• Manage Cassandra database using opscenter.
• Set the procedure of restoring a replica set from an archived backup such as a mongodump or MMS Backup file.
• Fine tuning JVM using jconsole, jstat and Eclipse MAT
• Configuring Nagios for OS and Database health monitoring.
• Created documentations for MySQL 5.6 databases i.e. Backup & Recovery procedures, Maintenance procedures, Replication procedures, Performance & Tuning procedures, Install & Configuration Job Aid (SOP), and Monitoring procedures
• Performed MySQL Replication setup and administration on Master-Slave and Master-Master.
• Increased database performance by utilizing MySQL config changes, multiple instances and by upgrading hardware.
• Expertise in Shell Script, PHP backend, python
• Setting up backup using commvault.
• Percona Xtradb cluster installation and maintenance.
• Expertise in using Percona toolkit

Confidential

SDET

Responsibilities:

• Reviewed requirement documents with the business and development team to understand the architecture and functionality of the application and consolidated these requirements in appropriate modules in Test strategy.
• Lead the testing team for this project. Created test plan and conducted reviews with various cross-functional teams involved.
• Held Defect Review and Status update meetings.
• Extensively used SQL queries as verifications during various test results. key testcases using Selenium integrated with eclipse IDE.

Confidential

SDET

Responsibilities:

• Wrote System, Integration, functional and regression Test Cases using TestDirector
• Extensively used SQL queries to validate complex data migration and conversion.
• Monitored the defect tracking process, documented the test results and reported the status of tasks and issues to the manager.
• Mentored the team, led sessions, scheduled meetings and provided user-training sessions.
• Provided support to the end customers during UAT.

Confidential

Developer

Responsibilities:

• Feature Development and Maintenance of the tool.
• Catering to the requirements of the customers on call flows.
• Re-engineering and enhancing various features (like 3GPP support) in the tool.
• Responsible for creating Test scenarios and Test Cases for various call flows
• Regression testing of the application.(involves testing all basic call flows)
• Testing various call flows for instance those involving SIP authentication (401 or 407), verifying the routing of the message through various SIP headers.
• Testing the inter working between PSTN and IP networks (essentially using SIP - T).
• Traffic testing of the switch by pumping in (simulating) huge volumes of calls and studying the BHCA (busy hour call attempts).
• Load testing of the switch by modulating the traffic/call rate (using constant or exponentially increasing call rate).