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Haider Rincon

@haiderrincon

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Full-stack developer building scalable web and mobile apps with React Native and Node.js.

Colombia

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What I'm looking for

I’m looking for a team where I can build clean, maintainable web and mobile systems, work end-to-end with React/React Native and backend services, and improve through Agile cycles—where collaboration, quality, and continuous improvement are valued.

I’m a Full-Stack Developer and Software Engineer focused on building robust, scalable, high-performance web and mobile applications. I blend strong frontend and backend skills to solve real-world problems and deliver seamless user experiences.

In my independent work (Jan 2024 – Jul 2024), I developed and deployed custom mobile applications for clients in education and healthcare using Flutter & Dart and React Native. I tailored apps for multilingual and accessibility requirements, designed UI/UX in Figma with user testing, and built backend services with Dart and Firebase for real-time synchronization, authentication, and push notifications.

I also integrated Google Cloud Storage for secure file handling and optimized media delivery inside mobile apps. Using Android Studio, I managed the app lifecycle with performance profiling, crash analytics, and store deployment, and I worked in an Agile rhythm with weekly stand-ups and retrospectives.

Earlier, as a Software Development Intern (SENA Internship), I developed and maintained business websites with HTML, CSS, and JavaScript, supported software testing and quality assurance, and performed data analysis to inform decisions. I’m motivated by clean architecture, maintainable code, and continuous improvement across every project stage.

Experience

Work history, roles, and key accomplishments

Independent Mobile Developer

Independent Professional

Jan 2024 - Jul 2024 (6 months)

Developed and deployed custom mobile applications for education and healthcare clients, tailoring experiences for multilingual and accessibility needs. Built backend services with real-time synchronization, authentication, push notifications (FCM), and integrated secure file handling with Google Cloud Storage.

Flutter Dart React Native Firebase Authentication Firestore Firebase Test Lab Google Cloud Storage Android Studio

Software Development Intern

Asul Tecnologías de Información SAS

Feb 2023 - Sep 2023 (7 months)

Developed and maintained business websites using HTML, CSS, and JavaScript while performing software testing and quality assurance to improve product reliability. Supported data analysis and collaborated with multidisciplinary teams to enhance usability, including automating internal applications on Microsoft Azure.

JavaScript HTML CSS MySQL Software Testing Quality Assurance (QA)Data Analysis Microsoft Azure Web Development

Education

Degrees, certifications, and relevant coursework

Servicio Nacional de Aprendizaje (SENA)

Technologist in Information Systems Analysis and Development, Information Systems Analysis and Development

2021 - 2023

Technologist in Information Systems Analysis and Development (Software Engineering) with focus on business software development, emerging technologies, and technical English (2021–2023).