N Uma

Experience

1. Sr Sre

   The Walt Disney Studios

   Jul 2024 — Present · Los Angeles County, CA, US

   Designed and delivered end-to-end migration of.NET applications from on-prem Windows Servers to AWS, performing infrastructure discovery, dependency mapping, and modernization planning. Migrated workloads to EC2, Aurora, SQL Server, and SSRS using secure, zero-downtime deployment strategies.Architected and managed production AWS environments supporting VM-based and containerized workloads across EC2 and EKS. Hosted APIs on EKS, implemented CloudFront for global delivery, and deployed Kubernetes workloads using Helm and ArgoCD (GitOps).Built standardized CI/CD pipelines using GitLab CI/CD, automating MSBuild-based Windows builds via GitLab Runners and deployments through CodeDeploy (blue/green & in-place) with rollback capabilities.Automated Windows provisioning using PowerShell and GitLab workflows, including AD domain join, Datadog agent setup, runner registration, and full bootstrap configuration. Integrated PrizmDoc for EKS-hosted services.Engineered observability using Datadog (APM, logs, metrics, synthetics) integrated with PagerDuty and Teams, reducing MTTR through proactive monitoring and alerting.Standardized IaC using Terragrunt over Terraform with modular architecture and multi-account orchestration. Automated ASG rotation via Lambda-triggered GitLab pipelines for zero-downtime patching, reducing provisioning time by 50%.Implemented SOPS-based secrets management, built SQS-Lambda event-driven workflows, supported.NET production systems on EC2, and designed secure SMTP relay infrastructure with TLS and monitoring.