David Martínez Cantú

Full-Stack Web Developer with 6+ years of experience building end-to-end web applications. Specialized in Python/Django and PHP/Laravel for backend development, and React for building responsive, component-based frontends. Experienced in designing and integrating RESTful APIs, working with both SQL and NoSQL databases.

Hands-on experience deploying and maintaining applications on AWS, with a strong understanding of Agile methodologies, code reviews, and technical decision-making. I've worked directly with international clients, taking projects from requirements to production. I also leverage tools like Cursor and Claude Code to streamline development and accelerate delivery.

Full-Stack Web Developer at FREELANCE (2025-10 – Present)

Freelance full-stack development for independent clients

• Developed and deployed custom web applications for independent clients using React and Django, covering full project lifecycle from requirements to production.
• Implemented an LLM-powered support chat using OpenAI (ChatGPT), enabling automated responses and improved user assistance within client platforms.
• Applied vibe coding practices using AI-assisted tools (Claude Code, Cursor) to accelerate development cycles while maintaining high code quality.
• Provided technical consulting to translate business requirements into scalable software solutions.

Full-Stack Web Developer at IMPROVING (2023-01 – 2025-04)

Full-stack development for timeshare booking platform and WordPress projects

• Architected and developed a full-scale timeshare booking platform for a hotel chain using Laravel and React, integrating RESTful APIs to handle reservations, availability, and client management.
• Collaborated with the UX/UI team via Figma to ensure pixel-perfect frontend implementation aligned with design specifications for the booking platform.
• Supported backend deployments on AWS, contributing to a stable and production-ready environment for the booking system launch.
• Built a responsive WordPress/Divi site for an independent client, applying Figma design guidelines and focusing on performance tuning and custom theme development.
• Actively participated in Agile sprints, conducting code reviews and driving technical discussions to ensure codebase consistency and quality.

Full-Stack Web Developer at ZIGATTA (2020-03 – 2022-12)

Full-stack development for fintech and internal management platforms

• Developed a fintech web application using Django and React to handle end-to-end loan request workflows, including user-facing application forms, backend processing logic, and an authorization management system for internal operators.
• Built a comprehensive internal management platform (Laravel/React) centralizing HR records, client management, project tracking, cost control, budget planning, and personnel allocation across projects.
• Designed and implemented RESTful APIs to support complex business logic and seamless communication between frontend and backend across both platforms.
• Supported the deployment of Laravel applications on AWS for development and testing environments.

Full-Stack Web Developer at REVEL STREET (2019-10 – 2020-01)

Venue booking platform development

• Contributed to the development of a venue booking platform for events, implementing backend business logic for availability management, date validation, and reservation workflows using Django.
• Managed booking data structures in MongoDB, ensuring reliable data flow between backend services and frontend interfaces.
• Built responsive frontend components using Angular and JavaScript to deliver a smooth reservation experience for end users.

Full-Stack Web Developer at MIURABOX (2018-10 – 2019-08)

Insurance management platform development

• Collaborated with the team to develop a comprehensive insurance management platform covering policy administration, claims processing, endorsements, and quote generation using Django and Angular.
• Built and refactored RESTful API modules to improve maintainability and support Angular frontend consumption, handling state management and UI rendering.
• Gathered technical requirements directly from clients and translated them into development cycles and feature planning.
• Delivered end-user training both online and in-person, and provided ongoing technical support to ensure smooth platform adoption across the organization.

Full-Stack Web Developer at VICTORIA CONTADORES PUBLICOS ASOCIADOS (2018-01 – 2018-08)

Personnel and payroll management system development

• Developed a full-stack personnel and payroll management system from scratch using Django and JavaScript, automating payroll calculation, attendance tracking, absence management, and invoicing workflows via third-party API integrations.

Bachelor's Degree in Information Technology Engineering – Universidad Politécnica de Victoria (2014 – 2017)