Hi, I’m Harsha.
I’m a Senior Engineer at Cisco Systems, where I work on cloud infrastructure security. I build tools that measure what actually matters in production Kubernetes environments – not just what vulnerabilities exist, but which ones are loaded, which ones are reachable, and what happens when something gets compromised.
What I’m Working On
Plexar – An open-source security posture assessment tool for Kubernetes. It combines runtime process introspection, blast radius analysis, compliance mapping, and delegation chain security for AI agent workloads. Apache 2.0 licensed.
Ship & Sleep – A weekly newsletter about the gap between security research and production infrastructure. Kubernetes security, AI agent infrastructure, and what breaks when theory meets reality.
Research Interests
- Runtime vulnerability analysis – determining which CVEs are actually exploitable in a specific deployment, not just theoretically severe
- AI agent security on Kubernetes – delegation chains, blast radius in multi-agent systems, the confused deputy problem in MCP architectures
- Security posture assessment – composite risk scoring that accounts for network topology, RBAC, workload classification, and runtime state
- The deployment gap – why security enforcement mechanisms from research rarely reach production infrastructure
Background
Before Kubernetes security, I worked on network infrastructure and cloud automation at Cisco. I’ve been in production infrastructure engineering for 7+ years, primarily focused on the intersection of security and operations in enterprise environments.
I hold a Master’s degree in Computer Science.
Contact
- Email: harshasanjiva@gmail.com
- GitHub: plexar-io
- LinkedIn: harshasanjeeva
- Newsletter: Ship & Sleep