Mario Ernesto Calixto Perea

Mario E. Calixto Perea

Computer Engineer specialized in Cybersecurity

Secure DevelopmentSecurity AuditIT InfrastructureConsulting

About Me

I am a computer engineer with over 10 years of experience in the technology sector, specializing in cybersecurity and secure solution development. My academic background and professional experience have allowed me to acquire deep knowledge in critical infrastructure protection, vulnerability analysis, and secure software development.

My approach combines technical rigor with a practical, results-oriented vision, which allows me to offer effective solutions tailored to the specific needs of each client or project. I maintain a constant commitment to updating and continuous training in a field as dynamic as computer security.

Academic Background

Master's Degree in Cybersecurity

University Oberta de Catalunya, UOC, 2023 - 2025

Specialization in Blockchain, network security, critical infrastructure protection, legality, pentesting, and IoT security.

Bachelor's Degree in Computer Engineering

University of Basque Country, 2014 - 2023

Training in software development, operating systems, networks, databases, and computer architecture.

Higher Degree in Web Application Development

Center Egibide - Vitoria-Gasteiz, 2012 - 2014

Specialized training in web development, frontend and backend programming, databases, interface design, and application deployment.

Intermediate Degree in Microcomputer Systems and Networks

Center Ciudad Jardín Vitoria-Gasteiz, 2009 - 2011

Training in operating system administration, local networks, basic computer security, equipment assembly, and maintenance.

Professional Experience

Microcredential

CITRAD (Honduras) | Currently

  • Training university students and technicians in secure frontend and backend web development.
  • Implementation of cybersecurity concepts in web development.
  • Design of courses and training materials adapted to different levels.
  • Evaluation and monitoring of student progress.

Team Leader

Teknei | 2024 - 2025

  • Leadership of a team of 6 people for the migration of the Euskarri project of the Basque Government to a JPA standard.
  • Implementation of agile methodologies (SCRUM) for project management.
  • Use of technologies such as Java, JPA, Hibernate, SQL, Oracle, JBoss, and WebLogic.
  • Coordination with stakeholders and deliverable management.

Web Development

Fnass.es | February - March 2025

  • Complete website development using modern technologies such as JavaScript, TypeScript, and React.
  • Implementation of security measures following OWASP standards.
  • Performance and user experience optimization.
  • Deployment and configuration in production environment.

Network Infrastructure

InmoEzpeleta | January - March 2025

  • Complete design and implementation of the corporate network infrastructure.
  • Assembly and configuration of rack, switches, routers, and access points.
  • Installation and configuration of on-premise server and NAS with automated backup systems.
  • Implementation of security policies, firewall, and VPN for secure remote access.
  • Configuration of business applications and staff training.

Web Portal Migration

Proyectolarrua.com and Elmonohabitado.com | 2023

  • Complete migration of web portals to new platforms and technologies.
  • Update of content management systems and databases.
  • Implementation of advanced security measures and performance optimization.
  • Preservation of SEO and redirections to maintain positioning.

Complete Web Development

Pantikosa.com | 2020

  • Comprehensive development of the web project from conceptualization to final implementation.
  • Use of agile methodologies for meetings and project management.
  • Configuration and administration of private Linux servers.
  • Implementation with Java, JavaScript, XML, Hibernate, SQL Oracle, and Tomcat technologies.
  • Development of customized functionalities according to client requirements.

Technical Skills

Security

PentestingOWASP Top 10Forensic AnalysisVulnerability ManagementCloud Security

Development

PythonJavaJavaScriptC/C++SQL

Infrastructure

LinuxWindows ServerAWSDockerKubernetes