rahul n.

Building a team focused toward improving infrastructure Scalability, Reliability, Availability keeping in mind Security and Cost. End-to-End Observability pipeline setup and management by using tools like Prometheus, Telegraf, Grafana, InfluxDB, VictoriaMetrics, fluentbit, FluentD, Elasticsearch. Manage 100TB+ Elasticsearch cluster on AWS EKS using ECK operator. Administration and troubleshooting of AWS EKS (Elastic Kubernetes Services) cluster related issues like granting permissions to cluster users based on RBAC, issue with flapping HPA's, cost related concerns, Gitops related issues etc. Write automation scripts using bash, python, jenkins pipeline. Write Infra as Code configs using terraform Installing Day 1 kubernetes plugins like EBS CSI Drivers, Cert-Manager, cloudwatch-adapter, cluster-autoscaler, efs-provisioner, external-secrets, fluentbit, ingress-controller, prometheus, argocd etc. Implemented multiple security projects like WAF for API's and CDN's, Container security using Trivy and Harbour, strengthen AWS Security posture by implementing AWS Security hub, Config, Guardduty, Cloudtrail, VPC Flow logs etc. Manage Cloud cost at enterprise level using AWS cost explorer and working with finance team and CFO office to keep check on our Infra cost by purchasing Savings plan and RDS Reserved instances. Saved dollars by fine tuning our logging cluster and providing recommendation to our engineering team on the ways to fine tune their MYSQL and PGSQL queries to reduce AWS RDS cost.