Miguel Arenas
Full-Stack Developer · Business Administration
Full-Stack Developer with a business mindset. I take full ownership of what you trust me with — and I don’t consider a project done until it actually works for you.
Most developers think in code. I think in outcomes.
Business-first mindset
My background in business administration means I don’t just build features — I align them with your goals, your users, and your growth.
Real-world execution
I’ve worked with real clients across industries and countries. I understand deadlines, communication, and delivering value — not just code.
Ownership mentality
I treat every project like my own. I care about the result, not just the task.
If you need someone who actually cares about your outcome — let’s talk.
How I build products
Tools don’t matter. How you use them does.
Frontend that converts
I build fast, responsive interfaces focused on clarity, usability, and user experience.
Backend that scales
I design clean architectures and APIs that are maintainable, secure, and ready to grow with your product.
Data that makes sense
I structure data with intention — ensuring consistency, performance, and real-world usability.
Execution that delivers
I don’t just build — I ship. Clean code, clear communication, and reliable delivery.
New tool?
Give me a weekend.
What I have Built
Turned a paper-heavy clinic into a fully digital operation — less admin, fewer errors, better financial visibility.
- End-to-end patient management
- Digital & automated consents
- Smart scheduling + email + Google Calendar
- Odontogram
- Financial tracking
- Admin & staff roles
Built With
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React
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TS
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NodeJS
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MySQL
Gave wellness brand a professional online presence — educating new customers about an unknown Amazonian superfood through storytelling and interaction.
- Bilingual (EN/ES) experience
- Interactive product storytelling
- Scroll animations & parallax UI
- Chart.js data visualizations
- Mobile-first responsive design
Built With
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Tailwind
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Alpine.js
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Chart.js
Engineered a full social platform from scratch — practicing real-time communication with WebSockets, relational data modeling and typed full-stack architecture.
- Social features (posts, comments, likes, profiles)
- Friend system & real-time chat
- REST API & backend architecture
- Relational data modeling (MySQL)
- Typed frontend
Built With
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TS
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React
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NodeJS
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MySQL
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SASS
Built a production-grade e-commerce from scratch — covering the full purchase lifecycle with Stripe payments, secure JWT authentication and documented REST API.
- Product catalog & shopping cart
- Authentication (JWT + HTTP-only cookies)
- Stripe payment integration
- Order lifecycle management
- Password recovery via email flow
- API documentation (Swagger)
Built With
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TS
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React
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NodeJS
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MongoDB
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Stripe
Designed and delivered a visual portfolio for a real actress client — elegant UI built to help casting directors explore her profile and get in touch.
Portfolio for an actress to showcase her work and help casting directors easily explore her profile and get in touch.
- Elegant UI focused on visual storytelling
- Sections for reels, photos, and professional experience
- Mobile-first responsive design
Built With
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Tailwind
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Alpine.js
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Chart.js
Let’s build something that actually works.
Real-world web applications, built with structure, performance,
and purpose.
Let’s build something that actually works.
Real-world web applications, built with structure, performance, and purpose.
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