# About Me
Hi, I’m Oscar Rey Castro — a Software Architect and Fullstack Developer passionate about transforming complex requirements into elegant, maintainable systems.
Over the years, I’ve worked across a range of projects in web development, system design, and e-learning platforms, combining technical precision with architectural thinking. My work revolves around clean architecture, design patterns, and continuous improvement — principles that ensure every solution I build remains scalable, robust, and easy to evolve.
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## My Journey
- >
Software Architect – ThePower Education (2025–present)
Leading a complete redesign of the main application with a focus on clean architecture and maintainability. I’ve driven architectural improvements that increased team coherence and efficiency.
- >
Fullstack Developer – ThePower Education (2024–2025)
Collaborated with a multidisciplinary team to improve a distance learning platform used by over 120,000 students across 60 countries, implementing new features and performance optimizations.
- >
Tech Lead – Newton Formación (2015–2024)
Guided the company’s technical evolution toward delivering high-quality online training. Identified platform bottlenecks and introduced enhancements that strengthened its competitive edge.
- >
CTO – Boxtor Marketplace (2021–2022)
Led innovation in the crypto space with a blockchain-integrated marketplace for second-hand goods. Designed an architecture blending Next.js and Solidity, ensuring a clean bridge between web and blockchain layers.
- >
Freelance Web Developer (2014–2015)
Delivered end-to-end web solutions for clients — from requirements gathering to deployment — always striving for the right balance between simplicity and functionality.
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## Education
- > BSc Computer Science – University of Hertfordshire (2025)
- > Vocational Degree in Web Development – Ilerna (2023)
- > Vocational Degree in Networking Systems Administration – IES Lois Peña Novo (2013)
- > Vocational Degree in Telecommunication and Computer Systems – IES Politécnico de Lugo (2009)
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## Technical Skills
- > Architecture: Clean Architecture, Design Patterns, Testing, Agile Environments
- > Languages: HTML5, CSS3, JavaScript, TypeScript, PHP, Python
- > Frameworks: Node.js, React.js, Next.js, Astro.js, React Native
- > Databases: MongoDB, PostgreSQL, SQL / MySQL, Redis
- > Infrastructure: AWS, GCP, Docker, Linux VPS
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## Languages
- > Spanish: Native
- > English: Proficient (C2)
- > Thai: Basic (A1)
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## Certifications
- > Microsoft Azure AI Fundamentals (AI-900) – 2024
- > Cambridge Advanced English (C2) – 2023
- > Linux Professional Institute (LPIC-1) – 2021
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I believe good software architecture is not just about code — it’s about designing systems that empower teams, scale gracefully, and stand the test of time. My focus is always on building things that matter and doing it with clarity, simplicity, and intent.