Rajeshwar

Led a queue of customer-impacting incidents and escalations (P1–P3), coordinating resolution with defined SLAs. Supported services through deployment validation, production readiness checks, and release coordination. Built and maintained CI/CD pipelines with GitHub Actions, automating builds, tests, and deployments, boosting release reliability by 40%. Migrated services to Terraform, cutting provisioning time by 80% and eliminating drift. Integrated Ansible for operational tasks and certificate management, reducing manual effort and improving reliability. Implemented Datadog dashboards, alerts, and checks, improving visibility and reducing latency and incident response time by 90%. Mentored L1 engineers and ensured 24x7 global coverage.

Provided production support for AWS-hosted SaaS platforms, maintaining EC2, IAM, S3, load balancers, and CloudWatch resources. Performed Linux and Windows system administration including patching, upgrades, and access control across 100+ servers. Resolved critical networking and DNS issues to ensure 99.9% service availability and rapid incident resolution. Diagnosed complex system and network issues using logs and tools such as ping, traceroute, dig, curl, netstat, and Wireshark. Troubleshooted integration and connectivity issues involving REST APIs, JSON payloads, and application services. Managed core protocols including HTTP/HTTPS, FTP, DNS, SSL/TLS, and TCP/IP, SSH.