Crafting Digital Experiences
Full-stack developer turning complex ideas into simple, elegant solutions. From concept to production.
Who I Am
I'm a full-stack developer specializing in building production-ready mobile and web applications that solve real-world problems.
I work across the complete technology stack—from database design and API architecture to React components and CI/CD pipelines. I've delivered applications with real-time data synchronization, offline capabilities, and complex business logic, ensuring quality from development through deployment.
I believe great software emerges from attention to detail at every layer—clean database schemas, efficient backend services, and responsive interfaces. My goal is simple: build systems that are a pleasure to use and a joy to maintain.
Alfredo Alcántara
Full-Stack Developer
Tech Stack
Front End
- React / React Native
- Next.js
- Vue.js
- Angular
- HTML5 / CSS3
Back End
- Express.js
- Supabase Edge Functions
- Back 4 App Cloud Code
- Spring Boot
- ASP.NET Core
Database
- SQL / NoSQL / Serverless
- Supabase
- Back4app
- Firebase
CI / CD
- Render, Railway, Vercel
- Expo EAS
- Jenkins
- Docker
- AWS
What I Can Build For You
I'll build you a professional authentication system that's ready to scale. This isn't just a login screen—it's a complete, production-grade foundation for your mobile app, architected to grow with your business.
This MVP showcases what I can deliver quickly while laying the groundwork for long-term collaboration. Let's start with authentication done right, then expand based on your needs.
Starter
Perfect foundation to get started
- Full authentication flow (signup, login, password reset)
- Display & edit user information
- Supabase backend with Row Level Security
- 1 platform deployed (iOS or Android)
- Form validation and error handling
- Dark/light theme with system detection
Standard
Complete backend & full deployment
- Everything in Starter
- Express.js backend with TypeScript
- One complete CRUD feature with UI (e.g., tasks, notes)
- Deployed on both iOS and Android
- Redux for predictable state management
- RESTful API design with proper middleware
Advanced
Enterprise-ready with complex features
- Everything in Standard
- Parent-child CRUD with UI (e.g., projects→tasks, teams→members)
- Advanced state management patterns
- Optimized performance and code splitting
- Custom UI with your branding
- Comprehensive error handling & logging
Technical Excellence
Frontend Excellence
- Expo/React Native for true cross-platform
- Redux for predictable state management
- Custom UI with your branding
- Dark/light theme with system detection
- Form validation and error handling
- Responsive design for all screen sizes
Backend Architecture
- Express.js with TypeScript
- Supabase Row Level Security (RLS)
- RESTful API design
- Middleware for auth, validation, error handling
What I Build
BriefDrop
Multitenant client portal for freelancers & agencies — files, messages, and projects in one private, professional space
Multitenant Architecture
Organization-based workspace with owner, member, and client roles using Supabase RLS
Role-Based Access Control
Three-tier permission system — owners manage everything, members collaborate, clients access only their projects
File Management
Project file uploads up to 50MB via Supabase Storage with metadata tracking and activity logging
Project Messaging
Per-project message threads for direct communication between teams and clients
Email Invitations
Time-limited invite tokens with Resend email delivery for onboarding clients into projects
Activity Tracking
Real-time action logs across project creation, file uploads, messages, and client assignments
Internationalization
Full i18next integration with externalized translation strings, ready for multi-language support
Theme System
Dark/light mode with localStorage persistence and smooth transitions via Motion