About myself

Pentester, Full-Stack
Developer and a little bit of everything

Specializing in building robust, secure, and modern web applications.

Driven by a passion for solving complex problems, I thrive on transforming intricate requirements into elegant, user-centric solutions that meet business needs while adhering to the highest security standards. I see every technical challenge as a chance to balance performance, usability, and resilience.

As a Fullstack Developer with a strong focus on Cybersecurity, I bridge the gap between development and security by embedding a security-first mindset into every stage of the software lifecycle. From architecture and coding to deployment and monitoring, I apply secure coding standards, threat modeling, and proactive vulnerability assessments. The result is not just functional software, but resilient systems designed to resist, detect, and respond to threats.

The experience

Hands-on experience

01

IBM

May/2025 - May/2026

HR, Costa Rica

Full-time • Remote

Java Software Developer & Penetration Tester

  • Conduct comprehensive penetration testing on web applications, APIs, internal networks, and enterprise infrastructure to proactively identify critical vulnerabilities and improve overall organizational security posture.
  • Perform intensive manual and automated security assessments utilizing Burp Suite, Kali Linux, Metasploit, and OWASP Top 10 methodologies to simulate real-world cyber attack scenarios and threat vectors.
  • Designed, engineered, and deployed a custom Java-based Burp Suite extension that optimized enterprise security testing workflows, automated repetitive tasks, and significantly enhanced vulnerability discovery efficiency.
  • Develop detailed, high-quality technical security reports incorporating risk analysis, CVSS scoring, concrete remediation strategies, and executive-level summaries for technical and non-technical stakeholders.
  • Collaborate closely with cross-functional blue teams, software developers, and security engineers to validate remediation findings, mitigate security risks, and advocate for DevSecOps and secure software development initiatives.
  • Burp Suite
  • Java
  • Maven
  • JavaScript
  • Kali
  • Mac OS
  • Team work
  • Problem solving
  • Salesforce
02

UNED

Jun/2025 - present

SJ, Costa Rica

Self-time • Remote

Volunteer University Tutor

  • Deliver high-impact, personalized virtual tutoring sessions for university students to reinforce core concepts in programming, software engineering principles, and technical academic coursework.
  • Instruct foundational and advanced topics in object-oriented programming (OOP), complex data structures, memory management, and algorithmic problem-solving paradigms.
  • Design and implement practical coding exercises, mock technical interviews, and hands-on assignments to build confidence and strengthen development skills in students.
  • Guide and mentor students through advanced debugging techniques, code refactoring, performance optimization, and technical troubleshooting across multiple integrated development environments (IDEs).
  • Accelerate student academic performance and retention rates through clear communication, structured mentorship, and adaptive, learner-centric teaching methodologies tailored to diverse learning speeds.
  • Problem solving
  • Communication
  • Teaching
  • C Sharp
  • Visual Studio
  • Java
  • Netbeans
03

Github

Jun/2025 - present

Self-time • Remote

Open Source Contributor

  • Actively contribute to high-impact open-source projects with 5K+ GitHub stars, enhancing code maintainability, optimizing performance, and scaling modular features.
  • Analyze codebase issues to develop, test, and submit robust bug fixes, security patches, and feature enhancements through highly collaborative and rigorous peer-reviewed community workflows.
  • Leverage advanced Git version control strategies, continuous integration (CI/CD) pipelines, comprehensive pull requests, and branching models to maintain high software development standards.
  • Go
  • Python
  • Git
  • Docker
04

LARA's

Jan/2024 - Jun/2024

Costa Rica

Freelance • Remote

Frontend Developer

  • Conceptualized and architected a custom, highly responsive business website tailored to client branding, drastically accelerating customer acquisition and establishing a robust digital presence.
  • Engineered a scalable and modern frontend architecture prioritizing cross-browser compatibility, web accessibility (WCAG), UI/UX usability, and fast page-load performance.
  • Boosted organic online visibility, search engine rankings, and user engagement metrics by implementing semantic HTML layouts and modern SEO best practices.
  • Responsive
  • HTML
  • CSS
  • JavaScript
  • UI/UX Design
  • Client Communication
  • Brand Development
  • SEO
Dreams

Reach for the stars