Hello! I'm
Prasanna Kumar

DevOps Engineer

Designing, automating, and operating production-grade cloud-native platforms with a strong focus on scalability, security, and reliability.

• Provisioned AWS infrastructure using Terraform (IaC), reducing manual effort by 70% and optimizing cloud costs by 30% through instance right-sizing, Reserved Instance planning, and S3 lifecycle policies.
• Managed multi-account AWS environments using AWS Organizations, Control Tower, and IAM, enforcing Service Control Policies (SCPs) and least-privilege access.
• Built and maintained GitLab CI/CD pipelines using a parent–child strategy with centralized templates, enabling selective builds and significantly reducing pipeline execution time.
• Developed secure, production-grade Docker images using multi-stage builds and hardening best practices, achieving up to 70% image size reduction.
• Managed a production Amazon EKS cluster using Terraform, implementing RBAC, Network Policies, zero-trust communication, and autoscaler tuning to achieve 99.9% availability.
• Improved Kubernetes workload reliability through optimized resource requests/limits, health probes, priority classes, affinity/anti-affinity rules, taints & tolerations, and persistent volume management.
• Performed zero-downtime Kubernetes upgrades using drain/evict automation, Pod Disruption Budgets (PDBs), and phased rollouts, reducing manual effort by 60%.
• Implemented GitOps workflows using Argo CD for automated deployments, drift detection, and self-healing Kubernetes infrastructure.
• Strengthened AWS security posture using AWS WAF, CloudTrail, and Secrets Manager, enabling a fully auditable, zero-trust environment.
• Monitored workloads using CloudWatch, Prometheus, and Grafana, proactively resolving performance issues and incidents within SLA.