I'm a cybersecurity-focused developer with a strong foundation in systems programming and backend development.
Currently pursuing my Master's in Cybersecurity at the Bucharest Academy of Economic Studies (ASE) - Information Security Management (ISM) program.

My technical expertise centers on writing efficient, secure code in C, C++, and Java, with applications ranging from embedded systems to server-side infrastructure.
I'm proficient in Linux environments and have hands-on experience deploying and maintaining cloud infrastructure for IoT applications and MQTT-based data handling.

I have experience managing VPS infrastructure on AWS, including deployment of Linux-based servers for IoT applications, MQTT broker services, and OTA update validation systems.

• HomeGuard
  A smart home monitoring system built in Embedded C for ESP microcontrollers.
  Integrates PIR motion sensors and MQ2 gas detectors, publishing real-time data over MQTT.
  Focused on reliability, minimal latency, and secure integration with MQTT brokers.

• SecureHive
  Android application built in Java that subscribes to MQTT topics to display real-time alerts
  from HomeGuard. Features a clean UI and Firebase integration for future enhancements
  (e.g., user authentication, alert history, and remote device control).

• Cloud Infrastructure for IoT
  Deployed and managed AWS-based Linux servers for MQTT broker hosting and OTA firmware update validation.
  Configured for 24/7 operation with secure remote management via SSH, supporting production IoT deployments.

• Advanced memory management and secure coding practices in C/C++
• Cybersecurity principles and threat modeling for embedded systems
• Real-time secure communication protocols between IoT devices and cloud infrastructure
• Security frameworks and compliance in information systems

📧 Email: andrei.catanoiu@gmail.com