Freelancers using React in State of São PauloFreelancers using React in State of São Paulo
ProjectsPeople
Cristian Anterio's avatar
Cristian Anterio
São Paulo, Brazil
Skilled Software Engineer ready to build you next web app
5.0
Rating
25
Followers
Skilled Software Engineer ready to build you next web app
Cover image for FairRate: AI-Powered Pricing Estimation Tool for Freelancers
FairRate: AI-Powered Pricing Estimation Tool for Freelancers
0
6
Cover image for Hey all! Me again :) This time, I'm building something for o...
Hey all! Me again :) This time, I'm building something for our health 💪. We all love the freedom of freelancing, but it's too easy to forget to take breaks and move our bodies. That's why I'm using Builder to create a simple app that times our work sessions and reminds us to take healthy breaks with guided stretches. It's all about working smarter without forgetting to take care of ourselves! What do you think? 😁
2
29
452
Cover image for Hey everyone! I’ve been experimenting with a small AI-powere...
Hey everyone! I’ve been experimenting with a small AI-powered tool for freelancers and I’d love your feedback! 👉 FairRate – Smart Pricing for Freelancers (https://studio--studio-467457356-8d2ad.us-central1.hosted.app/) It’s a simple proof of concept that helps you estimate a fair rate for any job — just paste a project description, choose your experience level and region, and the AI gives you a price range with a short explanation. I built it to solve something I often see here on Contra and among other freelancers that are unsure how much to charge for new projects. I’d love to know what you think, what works, what doesn’t 👀, what could be better. If you have a minute, play around with it, and please drop any feedback or ideas in the comments (is it realistic? not even close?)!
9
23
341
Cover image for I recently built a landing page for a law firm — but it’s no...
I recently built a landing page for a law firm — but it’s not just a landing page. It’s a way to connect real people with real legal solutions 🤝 . Every section was designed to build trust, highlight expertise, and guide visitors toward what truly matters: solving their problems. Because in the end, great design isn’t only about looks — it’s about creating meaningful connections between professionals and the clients who need them most. If you’re ready to turn your services into something people can feel and trust, let’s talk.
18
242
React(5)
Leonardo Csik Peres's avatar
Leonardo Csik Peres
Itu, Brazil
Fullstack Engineer specializing in React JS
Fullstack Engineer specializing in React JS
Cover image for LeoCPeres/pokemon
LeoCPeres/pokemon
0
12
Cover image for LeoCPeres/02-dtmoney
LeoCPeres/02-dtmoney
0
27
Cover image for LeoCPeres/letmeask
LeoCPeres/letmeask
0
12
Placeholder project card media
View more →
React(3)
Arthur Ziero's avatar
Arthur Ziero
São Paulo, Brazil
🚀 Software Development & Enterprise Applications
5.0
Rating
6
Followers
🚀 Software Development & Enterprise Applications
Cover image for YASQ | Fullstack Web Development
YASQ | Fullstack Web Development
0
24
Cover image for Klin | Custom Enterprise Application
Klin | Custom Enterprise Application
0
37
Cover image for Playfácil | Bug fixing for LMS Application
Playfácil | Bug fixing for LMS Application
0
25
Cover image for Rolezou | Fullstack Mobile Development
Rolezou | Fullstack Mobile Development
0
22
React(1)
Delger Davaa's avatar
Delger Davaa
São Paulo, Brazil
Fullstack Developer: Fast, Production-Ready Code
Fullstack Developer: Fast, Production-Ready Code
Cover image for Web Development for StepsInvesting
Web Development for StepsInvesting
0
21
Cover image for ReactNative Mobile App Development for StepInvesting
ReactNative Mobile App Development for StepInvesting
0
20
Cover image for Mobile App Development for TeleDoc
Mobile App Development for TeleDoc
0
15
Placeholder project card media
View more →
React(2)
André Felipe Rosa's avatar
André Felipe Rosa
São Paulo, Brazil
web develop build responsive and modern websites
New to Contra
web develop build responsive and modern websites
Cover image for FIVAM - Full Stack Frontend
FIVAM - Full Stack Frontend Application Developed the frontend for FIVAM, a web application built with React and Vite, focused on user authentication and integration with REST APIs. Key Features: • Secure JWT authentication • Protected routes • API integration • Responsive user interface • State management • Modern React architecture Technologies: React, Vite, JavaScript, JWT Authentication, REST APIs Responsibilities: • Frontend architecture • Authentication flow implementation • API consumption • User interface development • Application testing and debugging Outcome: Delivered a scalable frontend structure ready for production environments and future feature expansion.
0
101
Cover image for Built an Educational SaaS MVP
Built an Educational SaaS MVP that transforms educational content into a modern digital experience. Developed the full-stack solution with a focus on usability, performance, scalability, and rapid product validation using React, Next.js, Node.js, and Firebase/Supabase.
0
16
Cover image for AI Keyword Generator SaaS A modern
AI Keyword Generator SaaS A modern SaaS platform built to automate keyword research for affiliate marketers, entrepreneurs and digital businesses. The application leverages intelligent keyword generation, multilingual support and scalable cloud-based architecture to help users discover profitable search terms for SEO, content marketing and paid advertising campaigns. Highlights: ✓ AI-Powered Keyword Research ✓ Multi-Language Support ✓ Affiliate Marketing Optimization ✓ Serverless Architecture ✓ Modern SaaS Dashboard ✓ Scalable Infrastructure Tech Stack: Node.js • JavaScript • APIs • Netlify Functions • SaaS Development This project demonstrates full-stack development skills, product design, API integration, cloud architecture and the ability to build real-world software solutions from concept to deployment.
0
72
Cover image for Task Management REST API Developed a
Task Management REST API Developed a RESTful API using Node.js and Express following clean architecture principles and separation of concerns. Features: • Create tasks • List tasks • Update task status • Delete tasks • Unique ID generation • MVC-inspired project structure Technologies: Node.js, Express.js, JavaScript, REST APIs Responsibilities: • Designed API endpoints • Implemented business logic layer • Structured project architecture • Tested endpoints using Postman Outcome: Created a scalable backend foundation that can be extended with authentication, database integration and deployment.
0
95
React(1)
Fernando Freitas's avatar
Fernando Freitas
São Bernardo do Campo, Brazil
AI & ML Engineer | Full Stack, data-driven solutions expert
AI & ML Engineer | Full Stack, data-driven solutions expert
Cover image for Copilot | AI assistant for data exploration
Copilot | AI assistant for data exploration
3
10
Cover image for Insights AI | Web app for auto data analysis
Insights AI | Web app for auto data analysis
3
11
Cover image for Gmail AI | AI agent for email auto labeling
Gmail AI | AI agent for email auto labeling
3
20
Cover image for 2048 | Full-stack replica in a web app
2048 | Full-stack replica in a web app
4
9
React(1)