![Sebastian Rojas Vargas](https://jobicy.com/react/themes/app/images/avatar.jpg) Sebastian Rojas Vargas # Software Engineer Actively looking · Member since 24 Mar 2026 [Message](https://jobicy.com/dashboard-page.md) ShareLocationCosta RicaDesired salaryUnspecifiedWork preferenceFull Time, Contract, Part TimeExperience levelNot set * [Overview](#overview) * [Portfolio 0](#portfolio) * [Services 0](#services) ## About Professional summaryI am a Software Engineer with 3 years of experience in full-stack development, primarily using React.js. I have solid knowledge of Node.js and RESTful APIs, which allows me to build maintainable and scalable interfaces. I am passionate about leveraging Artificial Intelligence tools to optimize development workflows and enhance digital products. Currently, I work as an AI Software Developer, where I develop conversational chat features powered by OpenAI and create functional tools for AI agents to retrieve and process external data. Previously, I worked as a Full Stack Developer, building reusable UI components that reduced feature development time and improved code maintainability. I have experience integrating payment systems like PayPal with APIs and WebHooks to automate billing workflows. I also handle file uploads and management using third-party providers such as Firebase Storage and OpenAI’s file store, ensuring secure and efficient data handling. Earlier in my career, I worked as a FrontEnd Developer, standardizing and migrating views from Angular 7 to Angular 11, which improved visual consistency and system compatibility. I am committed to designing and implementing user interfaces aligned with project design systems to ensure a consistent and intuitive user experience. I hold a Bachelor's degree in Computer Science from Instituto Tecnológico De Costa Rica. I continuously enhance my skills through certifications in SOLID Principles, React.js, Docker, JavaScript, HTML, and CSS. I am fluent in Spanish and have an intermediate level of English. I am adaptable, a strong team player, and enjoy teaching and problem-solving within my work environment. ## Skills 18 capabilities[Azure](https://jobicy.com/talent/azure.md)[CSS](https://jobicy.com/talent/css.md)[Docker](https://jobicy.com/talent/docker.md)[Firebase](https://jobicy.com/talent/firebase.md)[Git](https://jobicy.com/talent/git.md)[HTML](https://jobicy.com/talent/html.md)[Java](https://jobicy.com/talent/java.md)[JavaScript](https://jobicy.com/talent/javascript.md)[Material UI](https://jobicy.com/talent/material-ui.md)[PostgreSQL](https://jobicy.com/talent/postgresql.md)[Problem Solving](https://jobicy.com/talent/problem-solving.md)[Python](https://jobicy.com/talent/python.md)[React](https://jobicy.com/talent/react.md)[Redux](https://jobicy.com/talent/redux.md)[SQL Server](https://jobicy.com/talent/sql-server.md)[Teaching](https://jobicy.com/talent/teaching.md)[Teamwork](https://jobicy.com/talent/teamwork.md)[TypeScript](https://jobicy.com/talent/typescript.md) ## Experience Career history ### AI Software Developer · Itriux Technologies 09/2024 – CurrentDeveloping conversational chat features powered by OpenAI, delivering intelligent real-time responses via Server-Sent Events (SSE) to enhance user engagement. Creating function tools for OpenAI Agents to retrieve and process external data, enabling dynamic AI responses. ### Full Stack Developer · Itriux Technologies 06/2022 – 09/2024Building reusable and generic UI components, reducing feature development time by 25% and improving long-term code maintainability. Designing and implementing views aligned with project design systems, ensuring a consistent and intuitive user experience. Integrating PayPal subscription model with API and WebHook support to automate billing workflows. Handling file uploads and management with third-party providers like Firebase Storage and OpenAI’s file store, ensuring secure and efficient data handling. ### FrontEnd Developer · Comunidad Aplicaciones Móviles - ITCR 09/2019 – 09/2020Standardizing more than 4 previously developed views using a unified format, improving visual consistency and user experience by 30%. Designing and implementing views aligned with the project's standard. Migrating views from Angular 7 to Angular 11, ensuring system compatibility with new technologies. ## Education Learning history ### Instituto Tecnológico De Costa Rica 2019 – 2022Bachelor of Computer Science This professional hasn’t added portfolio projects yet. This professional hasn’t listed any services yet.