Full Stack Developer with over 5 years of experience as a programmer. Specializing in the development of unique web applications.

Experience

1. April 2026 - Currently • 1 month

   Application Support Engineer

   This Fish - Canada/Mexico • Remote

   Provided technical support and infrastructure troubleshooting for enterprise software environments, managing configuration changes, diagnosing software and hardware issues, and maintaining high system availability. Worked with SQL, Linux, Docker, AWS, and GCP to support data workflows, configure IoT integrations, build advanced queries and reports, and translate operational processes into scalable software solutions.

2. March 2025 - April 2026 • 1 year 1 month

   Technical Support & QA

   Botpress - Canada • Hybrid

   Delivered bilingual technical support for SaaS and AI agent platforms, troubleshooting API, integration, and authentication issues for developers and enterprise clients. Reproduced bugs, tracked issues in Jira, validated fixes, and contributed to QA automation workflows using Cypress and Playwright while collaborating with engineering teams to improve product reliability and documentation.

3. October 2023 - September 2023 • 11 months

   Operations Data & QA Analyst (Project Lead)

   Mattr - Canada • Hybrid

   Documented data governance and validation procedures to ensure data integrity, consolidated operational datasets into analytical models, and investigated discrepancies across data sources. Built Power BI dashboards to monitor KPIs, detect anomalies, and improve visibility into data pipelines and transformation processes.

4. January 2023 - Currently • 3 years 4 months

   FullStack Developer

   Freelance

   Fullstack web developer skilled in HTML, CSS, Tailwind, and JavaScript/TypeScript. Experienced in building web applications with ReactJS, Node.js, and ExpressJS. Proficient in multiple frameworks and tools, including VueJS, Astro, jQuery, NextJS, Yarn,Vite and more, continuously exploring new technologies to expand expertise.

5. June 2012 - August 2022 • 10 years 2 months

   QA & Technical Support Assistant

   Ecopetrol SA - Colombia • On site

   Provided QA and technical support for internal enterprise applications, managing Zendesk tickets, reproducing software issues, assisting with manual testing, and validating data accuracy across reporting tools. Collaborated with technical and non-technical stakeholders to improve QA processes and internal documentation.

6. December 2018 - February 2022 • 3 years 2 months

   Digital Marketing

   Monster Shake - Colombia • On site

   Brand creation and business model development. Corporate identity manual design. Advertising material design. Creation of business social networks. Creation of advertising campaigns on Facebook, Instagram, YouTube and Google.

7. April 2008 - April 2012 • 4 years

   Web Developer

   Zona en Linea - Colombia • Remote

   Development of web pages in HTML, CSS, Javascript and CMS such as Wordpress, Joomla, Drupal and Prestashop.

Projects

Fullstack Application

Rooster / MERN Project

• Javascript
• ReactJS
• Tailwind
• NodeJS
• Express
• MongoDB
• Vite

This application records the work performed by an employee, capturing their location and hours worked. Deploy on Vercel (frontend) and Render (backend).

Application

Fullstack Application / MERN Project

• Javascript
• ReactJS
• Tailwind
• NodeJS
• Express
• MongoDB
• Vite

The application allows for creating users in a database, as well as editing and deleting patient records. Deploy on Vercel (frontend) and Render (backend).

Website

Wild Project

• HTML
• CSS
• Wordpress

Wild Project is a creative web agency based in Montréal, Canada. We specialize in building custom websites and web applications that are fast, functional, and visually impactful. From idea to launch, we help businesses go digital with smart, user-focused solutions.

Website

Portfolio Version 1

• HTML
• CSS
• ReactJS
• Tailwind
• Javascript

Developing my first portfolio with ReactJS and TailwindCSS. Throughout this project, I implemented CSS animations and customized the Tailwind CSS configuration file to tailor the project to specific requirements.

Application

ToDo App

• Javascript
• ReactJS
• Bootstrap
• Vite

This application, developed with JavaScript, React JS, and Bootstrap, leverages advanced React functionalities and local storage for seamless interactions, managed with Yarn and Vite, showcasing development expertise.

About Me

My name is David Guzman. I am a passionate Full Stack Developer transitioning from the petrochemical industry to a full-time software role. With a solid background in web development, I focus on creating exceptional user experiences through attractive and functional designs.

Proficient in HTML, CSS, JavaScript / TypeScript, and frameworks like React and Vue, I continuously update my skills to stay current with software development trends. My teamwork and problem-solving abilities enable effective collaboration with designers and backend developers to deliver high-quality digital products.

Technologies