Gerardo Trujillo

Built reusable React components and responsive interfaces for dashboards, customer portals, and business applications. Developed REST APIs and back-end services using Python/Django, supporting authentication, data processing, application workflows, and third-party integrations. Designed and optimized database structures using PostgreSQL, MySQL, and MongoDB. Integrated front-end applications with back-end APIs and external services, handling validation, errors, authentication, and data synchronization. Worked with existing codebases to implement new features, fix issues, refactor modules, and improve application reliability using Git-based development workflows.

Developed production web applications using TypeScript, React, Next.js, Angular, JavaScript, HTML5, CSS3, and Tailwind CSS across CRM, admin, and customer/data-driven platforms. Built back-end services and REST APIs using Node.js and PHP, connecting application logic with front-end workflows and third-party services. Designed and maintained data models and database operations using MySQL and MongoDB for customer, application, and business data. Integrated REST APIs and external services into front-end applications, handling authentication, request states, validation, and error scenarios. Developed and maintained React Native applications for iOS and Android to extend web functionality into cross-platform mobile environments.

Contributed to web application development using JavaScript, React, PHP, and MySQL with hands-on experience across both front-end and back-end development. Implemented responsive React components and user interfaces based on application requirements and existing design patterns. Developed database queries and back-end functionality while integrating front-end features with REST APIs. Resolved application bugs and supported testing and maintenance of existing features.