Krishna Murthy Vanama

DevOps / SRE Engineer

Cisco (Tetration Analytics)

04.2018 - Current

Monitoring developed applications, working on Optimization, Automation, Root cause analysis of failures and fixing Bugs
Design, develop and automate building cloud infrastructure (AWS, GCP, OCI) and test beds using Terraform, Ansible
Responsible for writing reusable infrastructure as a Code (IaC) modules by using Terraform for SaaS AWS cloud resources and mentoring the peers to write consumable code to automate the infrastructure provisioning for cloud application
Propose process/design improvements, test, deploy and debug software sensors which are key data collectors for the project
Participate in an on-call rotation and respond to outages/alerts quickly to ensure high-availability for SaaS to the end users
Build/Scale and maintain Production and Staging environments with terraform as infrastructure-as-a-service
Collaborate with developers/engineers to investigate/debug/fix technical issues
Setup and maintain monitoring, metrics and reporting systems for observability and actionable alerting
Composed, Python, groovy and shell scripts to do the CI/CD using Jenkins Git in GitHub to access the database to retrieve and archive data and to improve the application security and worked automation tool (ansible) and artifact repository for pushing successful build code
Implemented security scans like static and dynamic application testing at each layer of DevOps life cycle and converted the existing DevOps methodologies workflow to DevSecOps model
Created the Kubernetes cluster on AWS EC2 instance and deployed containerized application, created Microservices application and integrated with AWS service using EKS
Created shell scripts to monitor the administrative tasks and automated the tasks to free up the resources using the cron jobs
Used databases such as MYSQL and MongoDB and Elastic Cache to orchestrate and manage database administration for various applications
Experience with a different bug tracking tools like Jira
Experience with documenting tool atlassian confluence, used to document the work process and issues that arise with the Jira
Worked on Linux installation, configuration, upgrades and maintenance and troubleshooting of the systems
Managed and created new firewall rules for existing services and new applications
Managed and restricted user and group permissions in RedHat Enterprise Linux servers
Password less authentication is established between servers
Developed Bash and Python scripts to automate various stages of build and release process in Jenkins
Defined various CI/CD workflows using Jenkins file groovy scripts
Developed an inventory orchestration manager which populates metadata from cloud vendors using Rest API’s
Worked on ansible, used YML packages for installing, configuring push to make changes in time
Developed continuous integration framework which builds the various binaries used in the product
Author technical documentation for workflows, processes.