Karthick S

Accomplished DevOps Lead with extensive experience at Etech IT Solutions, specializing in Azure DevOps administration and CI/CD automation. Proven ability to enhance release management processes and optimize cloud infrastructure deployment. Strong collaboration skills combined with expertise in Kubernetes and scripting languages drive successful project outcomes.

Cloud Infrastructure

• Create domains for new websites and configure DNS
• Manage and renew SSL certificates
• Clear and purge cache for web applications
• IAAC : Terraform template creation , execution, backup, rollback
• Apply and maintain WAF policies for web security
• Provision and configure new servers (Linux/Windows)
• Manage firewall policies and security groups
• Schedule automated backups and verify restore process
• Install and monitor server agents (CloudWatch, Datadog, New Relic)
• Handle server-level issues and incidents (root cause analysis, recovery)
• Monitor performance using New Relic, Grafana, and Cloud provider tools

Version Control Tools

• Create and maintain repositories in GitLab, Bitbucket, SVN, ClearCase
• Implement branching strategies for release, hotfix, and feature workflows
• Perform code merges, resolve conflicts, and enforce code review policies
• Apply tags/labels for releases and maintain version history
• Manage user access and permissions for repositories
• Take periodic source code backups and create rollback checklists

CI/CD Tools

• Preparing YAML templates for CI/CD automation
• Set up and maintain Azure DevOps, Jenkins, and GitLab CI/CD pipelines
• Create build and release definitions, templates, and approval gates
• Automate deployments across DEV, QA, UAT, and Production environments
• Implement Groovy scripting in Jenkins for reusable pipelines
• Integrate automated testing (unit, smoke, regression) into CI pipelines
• Maintain artifact repositories and automate packaging

• Build, tag, and push Docker images to private/public registries
• Optimize Dockerfiles for lightweight and secure container images
• Orchestrate containerized workloads on Kubernetes (AKS, EKS, OpenShift)
• Configure Kubernetes resources: Pods, Deployments, Services, Ingress, ConfigMaps, Secrets
• Implement RBAC for secure multi-tenant access control
• Automate cluster provisioning using Terraform and CI/CD templates
• Perform rolling updates, rollbacks, and blue-green/canary deployments
• Monitor Kubernetes clusters using Prometheus & Grafana
• Manage resource quotas, HPA (Horizontal Pod Autoscaler), and Pod security policies

Monitoring & SRE

• Monitor infrastructure health using CloudWatch, Datadog, Prometheus, Grafana
• Set up alerts, dashboards, and incident response workflows
• Perform SLO/SLI monitoring and error-budget tracking
• Handle production incidents, conduct postmortems, and document RCA
• Optimize system reliability by automating failover and scaling mechanisms

Infrastructure as Code (IaC)

• Write Terraform modules for provisioning VPC, subnets, EC2/VMs, IAM, Security Groups
• Automate network policies, DNS, and storage provisioning
• Manage state files, perform plan/apply/destroy safely
• Use Ansible for configuration management, package installation, and patching

Configuration Management (Ansible)

• Create playbooks and roles for OS hardening and application deployment
• Automate patch management, service restarts, and compliance checks
• Orchestrate multi-server deployments with Ansible Tower/AWX

• Linux Administration course completed in HCL.
• .(Dot) Net course completed in Besant Technologies.