Hi, I'm
Jeferson Reis
Full-Stack Developer
I build modern, scalable web applications with React, Next.js, and Node.js. Focused on performance, clean architecture, and code that lasts.
- Years
- 9+
- Projects
- 50+
- Clients
- 30+
Stack
Tools I use daily
Technologies in my everyday workflow
Frontend Development
10
Backend Development
11
Mobile Development
5
Database & Cloud
8
Tools
3
Work
Selected projects
A snapshot of what I've built recently
UniAgenda — Web Platform
Academic events and calendar platform with role-based access control (student, guardian, coordinator and admin) — React 19 running in production
UniAgenda — .NET API
REST API in .NET 10 with Clean Architecture, JWT RS256 + Argon2id, JSONB audit log and pull-based VPS deployment
UniAgenda — Mobile App
iOS and Android app on Expo SDK 57 with all 19 platform screens, JWT in secure storage and FCM push with deep links
WebSmartChat
Smart chatbot for customer support
WebPixelJump
2D web platformer game
Testimonials
What clients say
6 clients served · average rating 4.8/5
“Jeferson delivered the app as agreed. The final product was responsive, polished, and ready to run across multiple platforms.”
“Jeferson is highly skilled, fast in execution, and very easy to work with. I would definitely hire him again.”
“The website was delivered with a professional look, strong responsiveness, and well-organized code. Communication throughout the project was clear and efficient.”
“Jeferson did an excellent job optimizing my website. He was fast, careful, and delivered a result that significantly improved the mobile experience.”
“A very attentive and dedicated professional who was always willing to help. Communication was excellent and delivery happened on schedule.”
“The automation was stable, well structured, and solved our booking workflow clearly. The project was delivered quickly with strong communication from start to finish.”
Contact
Let's talk
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