THAMOTHARAN N

Experienced DevSecOps and Cloud expert with 11+ years of driving automation, security, and scalable CI/CD solutions. Demonstrated leadership in overseeing end-to-end development of critical banking and taxation systems in India, ensuring secure and efficient deployments. Proven ability to spearhead platform engineering initiatives, building DevOps ecosystems from the ground up. Recognized as a Research & Development specialist, consistently delivering innovative cloud-native solutions. Specialized in architecting and managing high-performance infrastructure for enterprise applications.

• Received INSTA-INFY Award for creating Kubernetes cluster for Performance Testing environment with 40 worker nodes, 03/2020
• Appreciated with INSTA-PRIME Award for DR-PROD DevOps Architect Design and Implementation, 01/2019
• Got Best Performance Award from CML MEDIA SOFTWARE PVT LTD, for succeed engineering Implementation of DevOps Adaption, 06/2015

• Hands on experience on integrating application security tools into CI/CD processes.
• Extensive experience in Sonar branch analysis, Anchore, Xray and Black-Duck scanning.
• Worked on CI Integration with Serenity BDD Framework.
• Expertise in Gerrit Code Review management (Google Opensource).
• Worked on pom.xml file creation with docker / helm / Kubernetes maven plug-ins.
• Good understanding in Kubernetes Add-on like kubetail, k9s and etc.
• Endeavored end-end design plan from Dev-to-Prod alongside cluster implementation on RHCOS/RHEL with 'RedHat consulting team'.
• Better understanding in Kubernetes architecture, capability to create all Kubernetes objects & in-depth knowledge on Kubernetes calico and flannel networking/maintenance.
• Installed vanilla Kubernetes cluster with kismatic & kube spray on VMWare, BareMetal and AWS.
• Worked on ETCD snapshot restoration and fixed issues like Data corruption & RAFT proto panics.
• Implemented Private Docker registry creation/maintenance and pruning mechanism using shell script.
• Good understanding of Dockerfile and created Dockerfile for tomcat, Nodejs, Nginx, jasper, Anaconda - jupyterhub applications from RHEL images.
• Complete understanding of Tomcat, also worked on GC policy, JVM & Java thread tuning to improve the production performance.
• Hands-on experience on Nginx configuration, load balancing, routing and reverse proxy concept.
• Expertise in Micro services and created 100 more declarative CI/CD Implementation using Jenkins pipeline.
• Automated the Kubernetes deployment using Ansible jinja2 template.
• Constructed custom log4j and logback configurations using jinja2 template.
• Implemented central/host Rsyslog configuration template for Java, Nginx, node, fuse, and Kafka application.
• Extensively worked in SVN-to-GIT migration and GIT branch strategy planning.
• Hands-on experience in ELK cluster setup, indices, shards allocation management and created several types [25+] of Logstash configuration files using Ruby based on grok pattern match.
• Designed multiple visualization and dashboard in Kibana for repeated application issues, and application user session details and find slow response & long running queries.
• Scripted python to monitor health checks for all the Kubernetes components.
• Implemented Prometheus and Grafana setup for Kubernetes node and pod monitoring using JMX exporter with Tomcat image to get the Java application metrics like JVM pool and GC policy.
• Installed node exporter as a daemonset on Kubernetes cluster to get the node level metrics and knowledge and used it to create alerts on alerts manager provided by Grafana.
• Articulated the Project Delivery Workflow Design using Strategy Planning across 7 environments of the system over a period of 3 years.
• Coordinated as SRE professional in application, DevOps and infra level P1 cases [200+].
• Worked on design & Implementation for DR Setup and Active - Active production Implementation.
• Applied performance tuning on BareMetal, VM to avoid high I/O, disk, memory & swap related issues.
• Intermediate knowledge on network load balancing, Palo Alto, firewall and DNS configuration.