Comfortable across the stack, from firmware-adjacent hardware to production networks.
Backend
Node.js, Express.js, REST APIs, WebSocket, Socket.io, JWT authentication
Network & security
VLAN segmentation, firewall configuration, RBAC, CIS benchmarks, OS hardening, LAN troubleshooting
IoT & embedded
MQTT, Raspberry Pi, Arduino, Bluetooth, Zigbee, LoRa, Wi-Fi, sensor and telemetry integration
Languages
JavaScript, Python, Java, SQL
Databases
MongoDB, MySQL, PostgreSQL
Tools
Git, GitHub, Docker, Postman, Linux and Windows administration