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  1. 2026

    • CertificateSep 2026

      Claude Code: Guía completa para desarrolladores de software

      DevTalles

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      What I learned
      • Claude Code as an agent: installation, token usage, CLAUDE.md and the agent loop.
      • Workflows with GitHub, git worktrees, custom commands and Spec-Driven Design.
      • Skills, hooks, MCP servers, orchestrator agents and plugins.
      DevTalles certificate of completion for Claude Code: Complete guide, issued to Elvin Gonzalez on September 16, 2026.

    • CertificateApr 2026

      JavaScript Moderno: Guía para dominar el lenguaje

      DevTalles

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      What I learned
      • JavaScript fundamentals: types, arrays, objects, functions, loops and control structures.
      • Classes with private properties, the module pattern, ES modules and Vite.
      • Asynchronous code: callbacks, promises, generators and the Fetch API, with a framework-free CRUD.
      DevTalles certificate of completion for Modern JavaScript, issued to Elvin Gonzalez on April 20, 2026.

  2. 2025

    • CertificateApr 2025

      Patrones de Diseño: Soluciones prácticas y eficientes

      DevTalles

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      What I learned
      • Creational patterns: Builder, Factory Method, Abstract Factory, Prototype and Singleton.
      • Structural patterns: Adapter, Bridge, Composite, Decorator, Facade, Flyweight and Proxy.
      • Behavioral patterns such as Observer, Strategy, Command, State, Iterator and Visitor, in TypeScript.
      DevTalles certificate of completion for Design Patterns, issued to Elvin Gonzalez on April 29, 2025.

  3. 2023

    • CertificateJan 2023

      Curso de Frontend Developer

      Platzi

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      What I learned
      • Semantic HTML and document anatomy, with accessibility and SEO.
      • CSS: selectors, the cascade and specificity, the box model, Flexbox and Grid.
      • Responsive design with CSS units and media queries.
      Platzi diploma for the Frontend Developer course, issued to Elvin González, passed on January 6, 2023.

  4. 2021

    • CertificateAug 2021

      Master en webs Full Stack: Angular, Node, Laravel, Symfony+

      Udemy

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      Udemy certificate of completion for the Full Stack web Master, issued to Elvin Gonzalez, August 19, 2021.

    • CertificateAug 2021

      React: De cero a experto (Hooks y MERN)

      Udemy

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      What I learned
      • React from scratch: components, props, state and hooks.
      • The MERN stack (MongoDB, Express, React and Node) in a full-stack application.
      Udemy certificate of completion for React: From zero to expert, issued to Elvin Gonzalez, August 19, 2021.

    • Degree2021

      Ingeniería en Sistemas de Información

      Universidad Nacional de Costa Rica

      What I learned
      • The foundations of software engineering and the good practices to build with judgment.
      • Software project management: planning, organizing the work and delivering as a team.
      • Databases: modeling, design and queries.
      • An end-to-end view of software development, from the idea to a working product.
      • And the most valuable part: the friends and colleagues I met, who are still part of my path.