Devops Engineer Network Specialist

Chakradhar Samudrala *********************@*****.*** +1-480-***-****

Professional Summary

• Proficient Senior DevOps Engineer with 9 years of hands-on experience in automating and deploying over large infrastructures, using configuration management tools to build CI/CD pipelines.

• Experienced Information Technology professional with 6 years of expertise in Application Production support, Maintenance Projects, Operations, and Product Support.

• Demonstrated experience in DevOps methodology, developing sustainable infrastructures, and ensuring high scalability while setting up new servers/environments for Dev, QA, Staging, and Production

• Experience in branching, merging, tagging, and maintaining the version across the environments using version control tools such as GIT, SVN, Bitbucket, GitHub and GitLab.

• Proficient in implementing the Gitlab Security Scan SAST, DSAT, Dependency Scanning, Secret Detection and License Scanning via Specific Runners via Compliance Frameworks.

• Expertise in implementation of Gitlab SAML Authentication, OIM Roles, and CICD pipelines.

• Proficient in setup Jenkins installation, configuring and proxy implementation, LDAP Authentication and OIM Roles, configuring Jenkins Libraries.

• Proficient in using global Cloud Formation with AWS Code Commit, Code Build, Code Deploy and Code Pipeline to implement continuous integration and continuous delivery (CI/CD) pipelines, as well as in writing Cloud Formation templates using YAML or JSON to define AWS services such as EC2 instances, security groups, S3 buckets, and Lambda functions, and automating the deployment and management of AWS infrastructure, including multi-region, multi-account, and hybrid cloud environments.

• Hands on experience in Amazon Web Services (AWS) provisioning like VPC, S3, Glacier, ELB (Load Balancers), RDS, Backup, SNS, EBS, Auto Scaling, Elastic Beanstalk, Security Groups, Redshift, Cloud Watch, Cloud Trail, AWS Security Hub, AWS config, CloudFront and Route53.

• Hands-on experience in integrating a range of testing tools, including SonarQube, JUnit, Jasmine, and Karma, to ensure the quality of code and identify issues in the early stages. Also leveraged SonarQube in conjunction with Jenkins to improve the quality of source code by implementing and managing efficient CI/CD processes.

• Experience in working with different monitoring tools like Nagios, Grafana, Netcool and Splunk to monitor infrastructure, detecting network outages and protocol failures.

• Skilled in Jenkins/Gitlab for integrated build, development, and test environments, as well as emergency changes implementation with support from developers and other technology teams.

• Expertise in WebLogic and Tomcat installation, configuration and Domain setup.

• Strong communication, interpersonal, leadership, and team management skills with demonstrated abilities in managing impediments, risks, dependencies, and resource needs across stakeholders and leaders as appropriate.

• Proficient in using SaltStack for configuration management, automation, and orchestration of large-scale server infrastructure.

Technical Skills:

Build & ANT, MAVEN,

GRADLE, SOAUI,

Web servers: Tomcat,

Testing

Tools:

WebSphere,

WebLogic, JBoss

Version Tools: SVN, GIT Cloud

Technologies:

Azure, AWS

CI Tools: Jenkins, GitLab, GitHub,

Bitbucket

Configuration

Management

Tools:

Ansible, Salt

Containerization

Tools:

Docker, Kubernetes IDE Tools: MS Visual Studio

Languages: Bash/Shell

scripting, Java,

python, Perl

Databases: Mysql, Redis, Vertica

Bug Tracking Tools: JIRA, Bugzilla SDLC: Agile, Scrum, Waterfall Monitoring Tools: Splunk, Nagios,

Grafana, Netcool

Operating Systems: Windows, Linux, Unix

Infrastructure

Management Tools

Terraform, Cloud

Formation

Repositories: Nexus, Artifactory

Professional Experience:

Syniverse Technologies Jan 2017

- Present

Sr DevOps Engineer

Responsibilities:

• Provide end-user support for the CI/CD platform.

• Assist in implementing technical innovations to improve CI/CD efficiency and transparency.

• Deliver advanced Salt, Ansible and Terraform automation solutions while adhering to best practices.

• Proficient in writing Jenkins file using Groovy scripting language and Dockerfile syntax for automating build and deployment with Jenkins and Docker.

• Improve system visibility and performance with advanced monitoring and log analytics.

• Integrate source control systems (e.g., Subversion, Git, GitLab), Jenkins integration platform, and Jira ticket management technologies into existing pipelines.

• Hands-on experience in EC2, VPC, Route53, IAM, S3, ELB, Security Groups, CloudWatch, SNS, RDS, subnets on AWS.

• Worked on cloud automation using AWS Cloud formation templates.

• Worked on setting up the life cycle policies to back the data from AWS S3 to AWS Glacier.

• Responsible for Continuous Integration (CI) and Continuous Deployment (CD) process implementation using Jenkins along with shell scripts.

• Trained team members on JSON and using Rest API’s for troubleshooting issues in Elasticsearch.

• Responsible for training the team and documenting about the new microservices or an Elasticsearch cluster before SOU (Start of Operational Use).

• Involved heavily in setting up the CI/CD pipelines using Jenkins, Maven, Jfrog, GitHub, Ansible, Terraform and AWS.

• Used Microsoft Teams for collaborating with other teams and created Teams channel to get notifications on alerts and AWS Code pipeline status.

• Maintained and troubleshoot systems performance and network monitoring using tools like Nagios and AWS servers like Cloud Watch and Cloud Trail.

• Used JIRA to track all the defects and changes released to all the environments.

• Offer 24 /7 support for centralized CI/CD infrastructure.

• Collaborate with the business to implement infrastructure as code for Cloud and VMware platforms.

• Experience in installing, configuring, and managing SaltStack Master and Minion nodes.

• Developed and maintained SaltStack formulas and states for deployment and management of various applications and services.

• Implemented SaltStack beacons, reactors, and runners for event-driven automation and monitoring.

• Worked on integrating SaltStack with other Dev Ops tools such as Jenkins, Git, and Docker for continuous integration and delivery.

• Provided technical support and troubleshooting for SaltStack-related issues to development and operations teams.

• Continuously researched and evaluated new SaltStack features and modules to improve the efficiency and reliability of infrastructure management. Environment: Jenkins, GitLab, GitHub, Ansible, Terraform, Cloud Formation, Puppet, Maven, AWS, Nagios, Netcool, Confluence, JIRA, Python, RHEL, Tomcat, WebLogic, Jboss, and Shell scripts Aricent Jun 2011– Dec

2016

Network Specialist - DevOps

Description: Total Visibility is a reporting and analytics tool that allows the customer to see their real- time subscriber behavior while roaming. It also helps to provide historical data to see the customer data trend and to troubleshoot the customer issues. Responsibilities:

• Demonstrated understanding of build iterations, releases, and patches in Production environment.

• Administer and provision infrastructure in AWS environment using automated scripts (e.g. Cloud Formation, Python, AWS SDK and Ansible).

• Experience using AWS cloud Formation template to provision UVM, maintaining infrastructure.

• Hands on experience on EC2, lambda and Storage gateway

• Administered with Docker, Kubernetes and OpenShift and Mesos container technologies. Administration experience with Jenkins and Bamboo for doing CI/CD.

• Experienced with Docker (compose, Docker file, image creation/deployment, etc.).

• Experienced with Docker clustering/orchestration tools (Swarm, Consul, Kubernetes, Mesos, etc.).

• Hands on experience with cloud-based IaaS (OpenStack, AWS) and distributed schedulers

(Kubernetes, Mesos).

• Developed End to End (E2E) tests for Kubernetes to test end to end behaviour of the system, to ensure end user operations match requirement specifications.

• Functioned as a Kubernetes Expert with implementation and migration.

• Experienced with Kubernetes architecture, setup, images, jobs, labels and selectors, namespace, node, service, pod, replication controller and Kubernetes deployments.

• Creation of Release Plan, Definition, collection, analysis, and presentation of Release Project Metrics on weekly basis

• Worked on performance issues, helped teams to identify entries in log files on server

• Automated the Build and Deployment environment end -to-end using Jenkins, Maven, plugins

• Experience in setting up Puppet master, Puppet agents for managing enterprise policies, configurations

• Configured Jenkins servers, Jenkins nodes, creating required Shell scripts and creating and configuring VMs (Windows/Linux)

• Implemented and maintained the branching and build/release strategies utilizing Subversion

(SVN) and GIT.

• Extensively worked on using Chef Attributes, Chef Templates, Chef Recipes, and Chef Files for managing and configurations across various nodes. Worked with AWS Cloud management and Chef Automation.

• Written Chef Cookbooks for various DB configurations to modularize and optimize product configuration, converting production support scripts to Chef Recipes and AWS server provisioning using Chef Recipes

• Setup Jenkins master and installed necessary plug-in and added more slaves to support scalability and efficiency. Implemented the setup for master slave infrastructure to enhance the performance of Jenkins.

• Worked with Kanban tasks and provided feedback to management.

• Wrote shell scripts to trigger alerts to Netcool and monitored logs for errors.

• Represented support in DevOps meetings to discuss issues and initiatives.

• Developed shell scripts for automatic application failover.

• Ensured timely resolution of application issues within SLA. Environment: AWS, Linux, Git, SVN, Ant, Maven, Jenkins, Hudson, Ansible, Puppet, WebLogic, WebSphere, Apache/Tomcat, DNS, FTP, NFS, RPM, LDAP, AD, SAMBA, Nagios, Zabbix, Putty, Java, PHP, Python, Shell, PERL, JIRA, LVM, RAID, PowerShell.

Additional Experience

Telecom Engineer, ZTE Telecom India Pvt Ltd, Bengaluru, India Sep 2009 –Jun 2011 Residential Engineer, Adecco, Bengaluru,India Aug 2007 – Aug 2009 Accomplishments

• Successfully expedited the migration process from SVN to GitLab and configured CI/CD pipelines within specified timelines.

• Contributed as a valuable team player in addressing log4j vulnerabilities, demonstrating exceptional support and playing a pivotal role in meeting critical deadlines.

• Upgradation of Jenkins and Confluence

Education

• Bachelor of Engineering in Electronics and

Communications Anna University, India

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