in progress
LotoPetsPlay
Gaming platform themed around pets, featuring user accounts, match history, and real-time data management.
Next.jsTailwind CSSSupabase
Software Developer
Juan David
Silva Contreras
I build fast, accessible and visually refined web interfaces with clean, maintainable code.
Stack
The tools I reach for, organised by what they do for me.
- 01
Frontend
- React 18/19
- Next.js
- Astro
- TypeScript
- JavaScript (ES6+)
- Tailwind CSS
- HTML5/CSS3
- Sass
- Material UI
- Shadcn/UI
- Three.js
- Zustand
- Redux/RTK
- 02
Backend & Data
- Node.js
- Python
- FastAPI
- PostgreSQL
- SQL/SQLite
- Firebase
- Firestore
- Supabase
- Axios
- Zod
- SQLAlchemy
- JWT
- Azure
- 03
Testing & CI
- Vitest
- React Testing Library
- GitHub Actions
- Husky
- ESLint
- 04
Tools
- Postman
- Bruno
- Git/GitHub
- Vite
- Webpack
- Docker
- Linux
- pnpm
- 05
Methods
- Hermes
- OpenCode
- Obsidian
- Claude
- Open Design
- Handy
- Wipr Flow
- Scrum
- Flutter/Dart
Client Work
2024
Frontend Developer
Agendamiento / Cancillería
Platform for scheduling and managing administrative procedures for Colombian foreign ministries. Built the frontend with React, Redux Toolkit and Material UI on a Vite build.
All appointment flows passports, national ID and foreigner procedures
ReactReduxRTKMaterial UIVite
2024
Frontend Developer
BeMyself
Platform for managing digital credentials (e-cards) and enabling digital document signing. Implemented the frontend with React, Redux Toolkit and Material UI.
ReactReduxRTKMaterial UIVite
2023 - Present
Frontend Developer
Guarda
SICOV system for issuing certificates of legal firearm possession. Contributed to the frontend and led the Webpack-to-Vite migration, improving build performance.
Webpack to Vite build tooling migration
ReactReduxRTKMaterial UIWebpackVite
Things I've Built
in progress
Vikingos
VIKINGO'S motorcycle store: catalog, shopping flow and admin on Astro + Supabase.
AstroTailwind CSSSupabase
VFX Ayverson
Professional portfolio for a video designer and editor, showcasing a work gallery and personal brand presentation.
AstroTailwind CSS
Academia Eudalio Arriaga
Registration landing for Academia de Delanteros Eudalio Arriaga, wiring player profiles to WhatsApp.
AstroTailwind CSS
revil
Landing page for an Instagram growth service built with Astro and React.
AstroReactTailwind CSSTypeScript
recipes-ia
Conversational AI recipe generator: chat with a virtual chef, save favorites, and cook with what you have.
ReactTypeScriptTailwind CSSshadcn/uiZustandAI
Download My CV
Available in English and Spanish.
Get in Touch
Open to new opportunities. If you have a project in mind or just want to connect, my inbox is always open.