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Yoswell/README.md

Hi! 👋 I'm Yoswel (a.k.a VIsh0k)


Penetration Tester and Full-Stack Developer

Specializing in building robust, secure, and modern digital solutions, I focus on creating technology that balances innovation, performance, and resilience. Driven by a passion for solving complex problems, I enjoy transforming challenging requirements into scalable, user-focused systems that align with business objectives while maintaining strong security foundations. Every project is an opportunity to combine technical precision with practical impact, ensuring solutions are not only efficient, but sustainable and adaptable.

With a multidisciplinary mindset that blends software development, cybersecurity awareness, and problem-solving, I approach technology from both builder and defender perspectives. This allows me to integrate security-conscious thinking throughout the entire lifecycle of a project—from planning and architecture to development, deployment, and continuous improvement. By emphasizing reliability, usability, and proactive risk reduction, I aim to deliver systems that do more than function—they are designed to endure, evolve, and inspire confidence.

Visits Badge Pentester Developer CTF-player Code Code SO Skills

#yossb { 
  position: Costa Rica; 
  height: 164; 
  display: boy; 
  background: Tinker Resolver 🔨; 
  color: white 
}

Mission Statement

To bridge the gap between offensive security research and defensive implementations, creating more resilient digital ecosystems through education, automation, and ethical hacking.

Technical Specializations

Offensive Security & Pentesting

  • Web Application Security: Comprehensive testing against OWASP Top 10 vulnerabilities
  • Network Penetration Testing: TCP/UDP service enumeration
  • Red Teaming: Advanced TTPs (Tactics, Techniques & Procedures)


Current Projects & Activities

A major part of my ongoing growth comes from actively participating in international CTF competitions, where I continuously sharpen my skills in web exploitation, digital forensics, reverse engineering, and technical analysis. These environments push me to think creatively under pressure, adapt quickly, and deepen my understanding of how modern systems can be exploited and defended. Beyond competition, I maintain write-ups and technical documentation as a way to reinforce learning, share knowledge, and contribute back to the broader cybersecurity community.


Try hard, learn harder, and never stop exploring

Always open to collaboration, security discussions, and helping newcomers in the cybersecurity community!

Pinned Loading

  1. boofuzz boofuzz Public

    Boofuzz is a high-performance HTTP web fuzzer written in Go, designed for directory busting, parameter fuzzing, and vulnerability discovery. It supports multiple wordlists with custom placeholders,…

    Go 1

  2. dotfiles dotfiles Public

    A collection of system configurations, tools, and custom scripts for a productive development environment.

    Shell 1

  3. gists gists Public

    Code snippets, configurations, templates, tools and more for PHP security testing including various execution methods, attack vectors, payload delivery systems, webshells, file uploaders, reverse s…

    Shell 2

  4. uned_repository uned_repository Public

    Official support repository for Computer Science students – UNED Costa Rica. This repository is designed to centralize practical code examples, structured study materials, and supplementary resourc…

    C# 1

  5. zsh_tshark_autocomplete zsh_tshark_autocomplete Public

    Advanced Zsh autocomplete plugin for TShark that provides protocol-aware, hierarchical completion for display filters and extracted fields, enabling Wireshark-like field discovery directly from the…

    Shell 2