Onkar Shelke

✅ Building jws-diag, a read-only diagnostic + config validation CLI for JBoss Web Server (Red Hat's enterprise Tomcat).
✅ Designed Java 11 + Maven + picocli toolkit with CATALINA discovery across systemd, Docker, Podman, and Kubernetes/OpenShift.
✅ Implemented DOM-based server.xml parser with ${property} resolution and ${VAULT::...} token preservation from tomcat-vault.
✅ Built ServiceLoader-drive

Operate and maintain a multi-cloud GitOps fleet of 50+ production Kubernetes clusters across AWS, Azure, Hetzner, and bare-metal for 8+ enterprise tenants, delivering 30+ Helm applications via ArgoCD and Puppet across 150+ nodes.
Led RCA of a platform outage caused by Cilium CNI drift and ZFS LocalPV misconfiguration, restoring service in 3 hours.
Own the enterprise storage stack: Ceph (25+ runb

As a Maintainer of CNCF’s KubeStellar project, I manage the UI, backend, and infrastructure. I develop backend APIs in Go, containerize apps with Docker, and handle CI/CD via GitHub Actions. I’ve built features interacting with Kubernetes to enhance functionality, integrate with external systems, maintain high code standards, enhance documentation, and collaborate with the open-source community. T

✅ Deployed and managed containerized applications on Amazon EKS with best practices for security and scalability.
✅ Built CI/CD pipelines using GitHub Actions to automate builds, tests, and Kubernetes deployments.
✅ Used Terraform to provision EKS clusters, IAM roles, and networking components.
✅ Integrated Kubernetes APIs for real-time workload monitoring and rolling updates.
✅ Improved observabi

Served as a campus ambassador, promoting Geeks for Geeks and organizing events.

Pursuing a Bachelor of Engineering in Computer Engineering at Savitribai Phule Pune University, expected to graduate in 2026.