José Luis Guerrero Zafra

Design and implementation of transaction processing systems for banking projects. Development of new functionalities bridging multiple banks, ensuring security and efficiency in financial operations. Technologies: Python, Flask, Jenkins, ELK Stack, AWS (EC2, S3, Lambda).

Designed and developed the MVP of a SIEM platform with AI integration, integrating APIs of open source and private tools aiming at a cost and performance balance for medium size companies. Technologies: Docker, Wazuh, Suricata, OpenSearch, Watchguard EDR, ESET EDR, Google Gemini, React, Express, Node.js, MongoDB, MySQL. Developed a licensing platform based on Public-Key Cryptography Standards (Express, JWT). Mentor of a junior profile improving his knowledge in cybersecurity and autonomy with systems.

Conducted Common Criteria evaluations on EAL6 assurance level, focusing on test design and execution for secure critical systems collaborating in an international environment. Planned and developed the creation of a knowledge base for the ICCC 2024 in Qatar using scraping techniques with Python.

Led the development of multiple projects for the restaurant sector using Java, Android, Node.js, and PL/SQL. Collaborated on the redesign and migration of a franchise's database architecture to a decentralized model, adapting their sales system to a web-based solution (MySQL, Redis, Docker). Integrated Redsys and Paytef payment gateways, including certification acquisition and compliance. Developed a hotel management solution for military use, deployed in a private and isolated environment using Android, Node.js, and SQLite. Led the integration of fiscal printers into third-party software for Italian clients, ensuring regulatory compliance. Managed AWS EC2 instances and on-premise Debian-based servers.