Gnanasekaran Gajendiran

Experience in managing and scaling distributed systems in a public, private, or hybrid cloud environment using terraform and ansible.

Developed logging and Observability platform using Grafana stack (Prometheus, Mimir, Loki, Tempo) to improve reliability.

Taken ownership on the observability platform and delivered results with high quality. Doing production On Call Support on rotation.

Developed and maintained CICD Platform using Terraform, ARGOCD, GitHub Actions, Vault in Google Cloud.

Designed Infrastructure for Safi Bank in GCP using terraform.

Developed CICD through GitHub Actions. Used ARGOCD as a CD tool. ISTIO as Service Mesh.

Deployed Microservices Using Helm charts in the GKE cluster. Hashicorp Vault as secret Manager.

Designed and implemented a monitoring system using Prometheus, Grafana, Loki, Thanos, and Tempo reducing the mean-time-to-detect (MTTD) and mean-time-to-resolve (MTTR) incidents.

Done Confluent Kafka and GCP pub/sub set up as a Data platform. Traefik as Ingress Controller. OKTA as SSO provider.

Cloudflare Wrap for Zero trust. TYK as API gateway. Cert-manager with Zero SSL for certificate management.

Familiar with most of the GCP services. I am a Person able to set up this whole platform from scratch.

Created CICD framework using Jenkins shared lib, Which was used by 100+ developers.

Automated complex legacy apps deployment which reduced 240Mins to 40Mins per release.

Designed Highly available and scalable CICD System. Introduced docker for CI, Which helps to cover major build types.

Solved the barriers of the test automation with BrowserStack, Which made CT possible.

Automated Kubernetes deployment using Helm, Python (Jinja2), and Kustomize.

Migrated legacy applications into Kubernetes. Maintaining application in On premise Kubernetes as well as in GKE.

Monitoring coverage by using Prometheus, Grafana, Alert manager, Datadog, Newrelic for servers and kubernetes. Responsible for Production as well as non-production application support.

Automated Complicated WebMethods Stack installation, slashed 3 days of man effort into 2 Hours.

Managed 200+ on-premise servers by using Ansible, ITRS, and Shell Scripting with an Uptime of 99.9%.

Implemented Centralized log aggregation/Analytics using Elastic Stack.

Handled huge application volume logs (6 Terra Byte Data) by using Filebeat and Elasticsearch.

Introduced Nginx as Gateway & Dockerized it with F5 as load Balancer.

Architecting/Designing infrastructure interms of RDMS, F5, SSL and SSO.

Good knowledge in ConfigServer, effectively used combination of ConfigServer and Ansible.

Responsible for High availability of Non-Production Environments.

Written Monitoring Scripts and Configured in SiteScope to alert services/MQ status.

Troubleshooting on Network, SAN, DNS, LDAP, DB and OS Levels.

Developed Java based Tool to fetch application properties from several servers.

Administering SiteScope and BladeLogic

Written Monitoring Scripts and Configured in SiteScope to alert services/MQ status and gave KT to US Team.

Reduced deployment time from 6 hours to 30mins through Single Click Deployment with help of the ControlTier Tool.

Automated ControlTier Tool Installation, Configuration and Jobs Creations.

Conducting knowledge transitions cross Support and Dev Teams.

Implemented ACLS with SUDOERS.

Worked in Production Support, Automated Batch Process and Monitoring.