Skip to content
Gustavo LopezSenior Full-Stack Developer

Senior Full-Stack Developer with 15+ years of experience across Banking, Fintech, Cybersecurity, Healthcare, and Enterprise environments. Core experience in TypeScript, React, Node.js, and .NET, among others, with a strong focus on building reliable, maintainable software and modernizing legacy platforms. Currently focused on AI-assisted software development, exploring LLMs, coding agents, MCP, and agent-based architectures.

Experience

  1. Nybble Group

    Senior Full-Stack Engineer

    • Delivered enterprise software solutions using Angular, React, TypeScript, Node.js, Java, Docker, and AWS.
    • Applied AI-assisted development workflows using Claude and Cursor to support implementation, validation, and software quality.
    • Reviewed and validated AI-generated code to ensure maintainability, consistency, and engineering quality standards.
    • Collaborated in small, highly autonomous engineering teams and contributed to technical decision-making.
    • Angular
    • Java
    • React
    • TypeScript
    • Camunda
    • Spring Boot
    • HTML
    • Claude Code
    • GitHub Copilot
    • Cursor
  2. ITLG

    Senior React Developer

    • Contributed to the migration of a legacy banking platform toward a Micro Frontend architecture using React and TypeScript.
    • Participated in modernization initiatives for core banking systems.
    • Served as a front-end technical reference, helping maintain consistency in architecture, code quality, and development practices across distributed teams.
    • React
    • TypeScript
    • JavaScript
    • HTML
    • Redux
    • Axios
    • Java
  3. Kalto

    Senior React Developer

    • Developed financial management and payment processing features for a B2B fintech platform serving the Mexican market.
    • Implemented unit and integration testing practices to support application reliability and maintainability.
    • React
    • Redux
    • TypeScript
    • JavaScript
    • UT ( Jest )
    • Node.JS
    • Bootstrap
    • GraphQL
  4. Ohana

    React Native Developer

    • Developed mobile fintech features including payments, transfers, purchases, and account management capabilities.
    • Collaborated with the mobile development team to build front-end components and user interface features for financial applications.
    • HTML
    • CSS
    • JavaScript
    • Figma ( pixel-to-pixel )
    • React Native
  5. Cognizant Softvision

    React Developer

    • Implemented new features and UI enhancements for a pharmaceutical platform using React and Figma-based designs.
    • Delivered responsive user interface implementations based on high-fidelity designs.
    • HTML
    • JavaScript
    • Hooks
    • React
    • TypeScript
  6. McAfee

    Angular Developer

    • Developed core dashboard components for enterprise cybersecurity products, improving user tracking, log management, and real-time data visualization.
    • Angular
    • ElectronJS
    • JavaScript
    • Node.js
    • HTML
    • TypeScript
    • Jest
  7. DXC Technology

    Full-Stack Developer

    • Implemented enhancements and new functionality for a global music industry platform supporting artists, albums, and content management.
    • Contributed to both front-end and back-end development using C#, ASP.NET, JavaScript, and related web technologies.
    • C#
    • CSS
    • ASP.Net
    • JavaScript
    • Bootstrap
    • HTML
    • jQuery
  8. Bancor

    Full-Stack Developer

    • Designed, maintained, and modernized banking systems, intranet platforms, and customer-facing applications.
    • Delivered full-stack solutions using C#, .NET Framework, ASP.NET MVC, Entity Framework, SQL Server, and JavaScript.
    • Maintained and enhanced business-critical banking applications and implemented new functionality across multiple banking products.
    • C#
    • Visual Fox
    • SQL Server
    • JavaScript
    • jQuery
    • Entity Framework
    • ASP.Net
    • CSS
    • MustacheJS
    • UnderscoreJS
    • RequiredJS
    • .NET MVC
    • .NET Web API
    • FoxPro
    • WPF / WCF
  9. Mystic Solutions Limited

    Freelance Developer

    • C#
    • .NET
    • SQL Server
    • JavaScript
    • .NET MVC
    • HTML
    • jQuery
    • CSS
  10. Harriague + Asociados

    Senior Software Developer

    • MongoDB
    • .NET MVC
    • JavaScript
    • C#
    • NET Web API
  11. Globant

    Full-Stack Developer

    • .NET Razor
    • MVC
    • jQuery
    • JavaScript
    • C#
  12. Particular

    Freelance Part-Time Developer

    • ASP.NET
    • ASP
    • JavaScript
    • C#
    • SQL Server
  13. Bancor

    Full-Stack Developer

    • C#
    • SQL Server
    • JavaScript
    • .NET
    • Visual Fox
    • WPF / WCF
    • jQuery
  14. Dicicom

    Full-Stack Developer

    • SQL Server
    • HTML
    • JavaScript
    • ASP.NET Web Forms
    • CSS
    • C#

Skills

Front-End

  • React
  • TypeScript
  • Angular
  • JavaScript (ES6+)
  • HTML5
  • CSS3
  • Micro Frontends
  • Bootstrap
  • Tailwind CSS
  • Next.js
  • Astro

Back-End

  • Node.js
  • Express
  • C#
  • .NET
  • ASP.NET MVC
  • Entity Framework
  • Prisma
  • Java
  • Spring Boot

AI-Assisted Development

  • LLMs
  • Coding Agents
  • MCP
  • Harness Engineering
  • RAG

AI Development Tools

  • OpenCode
  • Claude
  • Cursor
  • GitHub Copilot
  • Gemini

DevOps & Infrastructure

  • AWS
  • Docker
  • CI/CD Pipelines
  • Git

Testing Frameworks

  • Jest
  • Cypress
  • Vitest
  • Playwright

Databases

  • SQL Server
  • MongoDB
  • MySQL
  • SQLite

Languages

  • SpanishNative / Bilingual
  • EnglishProfessional Working Proficiency

Education

  • Instituto Superior Santo Domingo (ISSD)

    Systems Analyst

Certifications

  • Microsoft Certified Professional (MCP)Validate

  • Programming in HTML5 with JavaScript and CSS3 Specialist (Exam 480)

What I'm working on now

  • Course

    Cloud, AWS & Infrastructure Professional Program

    In progress

    Master cloud computing fundamentals and advanced practices with AWS: design, deploy and operate scalable applications in the cloud. Covers key technologies such as Terraform, Docker and Kubernetes, with hands-on exercises and a real final project. Includes 16 weeks of structured content, live mentoring and access to a real AWS account to apply what you learn.

    11%

    • cloud
    • aws
    • infrastructure
    • terraform
    • docker
    • kubernetes

    Updated Oct 2026

  • Project

    Extension for Google Chrome to manage bookmarks

    In progress

    Google Chrome Extension (Manifest V3) designed to replace the traditional bookmarks bar with a single minimalist popup launcher. It includes a bookmark auditing engine that scans for obsolete, broken, or mismatched URLs and provides an interactive dashboard to manage and clean them up.

    73%

    • chrome-extension
    • react
    • typescript
    • vite
    • chrome.bookmarks
    • chrome.tabs
    • chrome.storage
    • aws amplify

    Updated Oct 2026