Hire a Freelance Full-Stack Developer Who Ships Fast
Available Now • MVPs in 4-6 Weeks • 100% Test Coverage • Remote Worldwide
Expert in TypeScript, React, Next.js, React Native, Ruby on Rails, Node.js. Building scalable web & mobile apps for startups and businesses since 2019.
of experience • Web & Mobile apps • MVPs in weeks • 100% test coverage • Remote available worldwide
Why Choose Me?
I don't just write code—I deliver solutions that drive business results. Here's what sets me apart:
Ship Fast, Ship Right
MVPs delivered in 4-6 weeks, not months. I've helped startups launch products faster than their competitors, giving them crucial market advantage.
✓ Production-ready code from day one
✓ No technical debt accumulation
✓ Iterative development with quick feedback loops
Quality That Scales
100% test coverage isn't just a metric—it's your insurance policy. Every feature I build is tested, documented, and ready to scale with your business.
✓ Comprehensive test suites
✓ Clean, maintainable architecture
✓ Code that your team can easily extend
Communication First
No surprises, no delays. Weekly updates, transparent progress tracking, and collaborative decision-making. Fluent in English & Spanish.
✓ Daily standups & weekly reports
✓ Clear timelines and milestones
✓ Proactive problem-solving
What I Can Build For You
From MVPs to enterprise applications, I specialize in building products that solve real business problems.
🚀 MVP Development
Get your product to market fast. I'll build a production-ready MVP in 4-6 weeks that you can launch, validate, and iterate on.
- Full-stack web applications
- Mobile-responsive design
- User authentication & authorization
- Payment integration (Stripe, PayPal)
- Admin dashboards
🤖 AI Integration
Add AI capabilities to your existing app or build AI-first products. I specialize in OpenAI, LLM integration, and custom AI solutions.
- OpenAI API integration
- Custom LLM implementations
- AI-powered content generation
- Chatbots & conversational AI
- Automated workflows
⚙️ API Development
Build robust, scalable APIs that power your frontend, mobile apps, or third-party integrations. RESTful or GraphQL.
- RESTful API design
- GraphQL schemas
- Database optimization
- Authentication & security
- API documentation
📱 Mobile App Development
Build native-feeling mobile apps for iOS and Android using React Native. Cross-platform development that saves time and money while delivering great UX.
- React Native apps (iOS & Android)
- App Store & Play Store publishing
- Native module integration
- Push notifications
- Offline-first architecture
🔧 Legacy Modernization
Refactor and modernize existing codebases. Improve performance, add features, and migrate to modern tech stacks.
- Code refactoring
- Performance optimization
- Tech stack migration
- Feature additions
- Bug fixes & maintenance
Experience
Full-Stack Developer | AI Integration & Local SEO Platform
LogicalMinds.co
Architected and built a comprehensive SaaS platform from scratch, serving 100+ SMBs. Led full-stack development of AI-powered features that reduced content creation time by 80% and automated business listing optimization.
FullStack Developer
ShareableInnovations
Transformed legacy systems into modern, high-performance solutions. Built enterprise intranet serving 500+ employees and developed secure mobile applications deployed across 3 major app stores.
FullStack Developer
Tecabot
Built a fintech platform integrating WhatsApp messaging with real-time expense tracking. Delivered MVP in 8 weeks, enabling users to track finances directly through WhatsApp with instant insights.
Frontend Developer
Aictive
Modernized frontend architecture using atomic design principles and comprehensive testing. Built complex pose detection and questionnaire systems for health tech application.
FullStack Developer
Deglotec
Led frontend improvements achieving 100% accessibility compliance and comprehensive test coverage. Built scalable component library, advanced data visualization dashboards, and developed mobile applications.
Technical Skills & Expertise
Frontend
Backend
Database
Tools
Client Testimonials & Recommendations
Felipe Ramírez
Head of CRO | Growth | IA | CRO | Martech
"I met Joel for a Shopify and Chilean ERP integration project to synchronize inventory, customers, orders, and purchases. His role was fundamental to the project's success due to his technical knowledge and goal-oriented approach. A very responsible and committed person, we established good communication which was also a positive factor for the project's progress."
View on LinkedIn
Karina Castro Ceferino
Mentora de Marketing Digital y Coaching para Emprendedoras
"Joel is a very committed and responsible person with the work he does. He is a methodical worker and at the same time creative when it comes to finding solutions to improve websites. Thank you for your work."
View on LinkedInHow I Work With Clients
A proven process that delivers results fast, without cutting corners
1. Discovery Call
Free 30-min consultation to understand your needs, timeline, and goals
2. Rapid Prototype
Working MVP in 4-6 weeks with weekly updates and feedback loops
3. Quality Delivery
100% test coverage, clean code, full documentation, and deployment ready
4. Launch & Support
Smooth deployment, post-launch support, and knowledge transfer to your team
What I Can Build For You
From MVPs to enterprise solutions—here's what I've built for clients
E-commerce Platforms
Shopify integrations, custom stores, payment gateways, inventory management
✓ Built Shopify-ERP sync for Chilean retailer
✓ Custom e-commerce with Stripe integration
✓ Multi-vendor marketplace platforms
AI-Powered Applications
ChatGPT integrations, content generators, AI chatbots, LLM-powered features
✓ AI business description generator (saves 15+ hrs/week)
✓ OpenAI API integrations
✓ Custom LLM solutions
Mobile Apps
React Native apps for iOS & Android, published to App Store and Play Store
✓ Cross-platform mobile apps
✓ Published in 3 app stores
✓ Native module integrations
SaaS Platforms
Subscription management, multi-tenant apps, admin dashboards, analytics
✓ Built SaaS serving 100+ SMBs
✓ Stripe subscription integration
✓ Multi-step onboarding flows
API Development
RESTful APIs, GraphQL, third-party integrations, webhooks, microservices
✓ APIs handling 10K+ requests/day
✓ WhatsApp Business API integration
✓ ERP system integrations
Legacy Modernization
Refactor old codebases, migrate to modern stacks, improve performance
✓ Improved performance by 300%
✓ Reduced load time by 60%
✓ Modernized tech stacks
Featured Projects & Portfolio
Fichia
SaaS platform for team management with AI-powered features. Built complete MVP including employee booking system, productivity analytics, and subscription management. Integrated AI to automate scheduling and provide insights.
MVP delivered in 6 weeks • 100% TypeScript • AI-powered automation • Production-ready
Reduced manual scheduling time by 70% • Real-time analytics dashboard • Automated subscription management
Ignauth
Developer tool Chrome extension that simplifies authentication token extraction. Built to solve a common developer pain point, making it easy to copy bearer tokens for API testing and development workflows.
Published in Chrome Web Store • 100+ active users • 4.5+ star rating
Saves developers 10+ minutes per day • Zero-maintenance solution • Used by development teams worldwide
Writing & Technical Insights
Years Experience
Test Coverage
Weeks to MVP
Response Time
Ready to Build Something Great?
I'm available now and can start your project immediately. Let's discuss how I can help you ship faster.
✓ Free discovery call • ✓ Available immediately • ✓ Remote work worldwide
Response time: Usually within 24 hours • Bilingual (English/Spanish)