API Authentication & Authorization
OAuth 2.0 flows, JWT structure and validation, API keys, mTLS, OIDC, token introspection, and Spring Security integration.
OAuth 2.0 flows, JWT structure and validation, API keys, mTLS, OIDC, token introspection, and Spring Security integration.
Network security fundamentals for software engineers — firewalls, VPNs, network segmentation, DDoS mitigation, DNS security, zero trust networking, mTLS, and cloud network controls.
Deep-dive into Service Mesh architecture — Envoy internals, xDS API, mTLS certificate lifecycle, traffic management patterns, observability, Spring Boot integration, and production failure modes for senior engineers.