Mohan BABU

• Built a scalable GoReplay automation framework using Jenkins and Ansible, reducing manual effort by approximately 70%, eliminating multi-user dependency, and improving test consistency and reliability.
• Developed rolling deployment automation for multi-node services (up to 40 nodes), enabling near-zero downtime releases and faster deployments.
• Built reusable automation pipelines for bulk service lifecycle management (start/stop), improving efficiency during maintenance and incident recovery.
• Implemented & automated Feedgen rsync-based synchronization across FO and BO systems, improving failover readiness and reducing downtime.
• Migrated legacy services using rsync and volume snapshot strategies individually, ensuring data integrity and minimal downtime.
• Led the Rocky Linux 8 to Rocky Linux 9 migration, enhancing system security, compliance, and platform stability.
• Contributed to Amazon Linux 2, and Amazon Linux 2023 migration using Terragrunt, enabling infrastructure modernization.
• Designed and managed infrastructure using Terraform and Ansible, ensuring scalable and consistent deployments.
• Provided production support and on-call troubleshooting for P0/P1 incidents, ensuring high availability.
• Performed root cause analysis (RCA) and implemented preventive fixes to improve system reliability.
• Maintained environment parity across development and production, reducing deployment-related issues.

Highlights:

• Reduced manual effort from 3–4 engineers to fully automated pipelines.
• Enabled zero/minimal downtime deployments across distributed services.
• Improved failover recovery time through rsync automation and service orchestration.
• Strengthened infrastructure through OS and platform modernization.

• Worked on implementing automation using the AWS Lambda service with Python.
• Worked closely with developers in the migration of the infrastructure.
• Hands-on experience with designing and implementing CI/CD jobs with Jenkins.
• Worked on migrating Windows servers from on-premises to AWS Cloud.
• Implemented Packer to automate the creation of custom AMIs, and enabling the generation of Golden AMIs for diverse stacks across various environments.
• Design, develop, and test automation code across the environments based on the requirements.
• Maintain an existing code base, monitoring for failures in non-prod environments.
• Act as a medium or advocate for stakeholders' interests during the specification and development stages.

Highlights:

• Implemented AWS Lambda functions to automatically start and stop instances in development environments, thereby optimizing resource usage and reducing costs during idle periods.
• Conducting an audit on idle AWS instances and redundant security groups revealed unnecessary costs and potential security risks. This initiative resulted in a monthly savings of $400.

• Established IAM administration by creating user accounts and organising users into groups, each assigned with specific policies.
• Enhanced resource management through AWS resource tagging based on functions, environment, and platform criteria.
• Manage tickets with a focus on adherence to Service Level Agreements (SLA) for timely resolution.
• Efficiently communicate with vendors to log and address support tickets promptly.
• Implemented S3 bucket backups with versioning and configured a lifecycle policy to archive outdated data to Glacier.
• Roles and responsibilities at Amazon