Esteban Website Developer
Sr Software Developer / Fullstack App Architect
Dedicated and results-driven Software Developer with more than a decade of comprehensive experience in Full Stack and Mobile Native Application Development. For the past 2 years, I've significantly expanded my expertise in creating intuitive and performant cross-platform mobile experiences, specifically with React Native (Expo) and Ionic Angular. Proven record of effectively delivering scalable and engaging mobile and web solutions, seamlessly integrating frontend innovations with robust backend APIs. Experienced in various industries including logistics, civic engagement, fintech, and education. Highly adept at agile collaboration, technical leadership, and modern DevOps practices, ensuring smooth CI/CD processes, efficient deployments, and consistently successful project outcomes.
Esteban Andres Trejos Mata
Full Stack Developer
About Me
Proven record of effectively delivering scalable and engaging mobile and web solutions, seamlessly integrating frontend innovations with robust backend APIs.
Experienced in various industries including logistics, civic engagement, fintech, and education. Highly adept at agile collaboration, technical leadership, and modern DevOps practices, ensuring smooth CI/CD processes, efficient deployments, and consistently successful project outcomes.
My journey spans from traditional web development to cutting-edge mobile applications, always staying current with the latest technologies and best practices in software development.
Double Nines Contractor and Coop/Ryder
Contractor RoleSr. Hybrid Full Stack Mobile Developer (Contractor Role)
March 2025 – December 31, 2025
As a Senior Full Stack Developer with Double Nines, I've been leading development across two branded digital platforms—Ryder (Mobile App) and Coop (Desktop App)—tailored uniquely to each brand's requirements using React Native (Expo) for Ryder and React with TypeScript for Coop.
Double Nines Contractor and Futre (OpenAI Integration)
Contractor RoleSr. Contractor Full Stack Developer
January 2024 – March 2025
As a contractor Full Stack Developer, I collaborated on this project I was honing my NextJS / NodeJS skills, and contributing to impactful solutions. My role involves both backend and frontend development, ensuring a seamless, scalable, and user-friendly experience tailored to the education sector.
Progress Residential for HireRising
Freelance RoleSr. Freelancer Full Stack Developer
June 2023 – December 2023
Contributed to a real estate technology project, focusing on both frontend and backend development. Ensured seamless integration of UI components, scalable backend services, and high-quality testing standards.
Education
Bachelor's in Software Engineering
Universidad Internacional de Las Americas (UIA)
San Jose, Costa Rica
Actively pursuing continued education to achieve a Bachelor's degree this year.
Web Design and Graphic Design
Fundatec
San Jose, Costa Rica
2008 - 2009
Completed a one-year program providing comprehensive web and graphic design experience.
Secondary Education
Colegio Nuestra Señora de Sion
San Jose, Costa Rica
2000 - 2004
My Hobbies and Passions
Beyond coding, I enjoy these activities that keep me balanced and inspired
Meditation/Yoga
Embracing the tranquility of meditation and the physical and mental balance achieved through yoga.
Investing in Crypto
Keenly exploring the dynamic world of cryptocurrency, engaging in informed investment strategies.
Trading the Markets
Actively participating in the financial markets, applying analytical skills and strategic insights.
Outdoor Sports
Enjoying the thrill of outdoor sports, fostering a connection with nature and a healthy lifestyle.
Martial Arts
Passionate about the discipline and artistry of martial arts, cultivating physical and mental strength.
Creating Apps for My Community
Channeling creativity into the development of applications that serve and uplift the local community.
Supporting the Youth and Elders
Engaging in community service by providing support and fostering connections between different generations.
Teaching Programming Skills
Inspiring the next generation by imparting valuable programming skills to teenagers, contributing to their educational and professional development.
Let's Work Together
Ready to bring your ideas to life? I'm always excited to work on new projects and