Marauder Keychain turns a spare ESP32 into a pocket WiFi/BLE security tool with no screen, SD card, or laptop needed: just USB power and a phone browser. I built a full web control panel into the ESP32 Marauder firmware, routing all 71 commands through the same dispatcher the serial CLI uses. The keychain itself is a custom two-piece 3D-printed case, CAD-modeled to the exact board outline with a keyring loop molded in.

LureGuard turns security monitoring into a conversation: it watches your servers, investigates alerts, and produces audit-ready reports instead of dumping raw logs on you. It combines Wazuh (detection), machine learning (SSH risk scoring), and an AI analyst (investigation + reporting), with human approval before blocking or other containment. I built and integrated these pieces into one deployable product and show how a small team can get SOC-style coverage without hiring a full analyst roster.

University parallel-programming lab built as a Spring Boot ecommerce API: optimistic locking for inventory, HikariCP tuning, async checkout side-effects, Spring Batch daily sales aggregation, and Apache round-robin load balancing across two app instances.

OS2 runs a web shop on Kubernetes with HTTPS, auto-scaling, and live attack detection, not a single VM with unread logs. It combines k3s, a FastAPI app, a log classifier (rules + online ML + DDoS windows), and Prometheus/Grafana for a live security dashboard. I extended the course Docker assignment into this full cluster deployment and showed how the app scales and defends itself on real VMs.