Freelance Fullstack Engineers in State of São PauloFreelance Fullstack Engineers in State of São Paulo
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Diego Lopes's avatar
Diego Lopes
Sorocaba, Brazil
Building AI Agents & SaaS with Next.js
REPLIT_EXPERT

Expert

Building AI Agents & SaaS with Next.js
Cover image for SaaS Platform: TENET AI (Built
SaaS Platform: TENET AI (Built on Replit) A multi-tenant AI agent platform developed entirely within the Replit ecosystem. Replit-First Workflow: Cloud IDE: Used Replit as the exclusive environment to build complex Python/FastAPI microservices without local setup. AI Assisted: Leveraged Replit Ghostwriter to accelerate boilerplate generation for the multi-agent orchestration logic. Debugging: Utilized the Replit Shell for real-time testing of WhatsApp API webhooks before pushing to production. Stack: Python, FastAPI, PostgreSQL. (Production deployed via Railway, Development via Replit).
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Cover image for PagueFlow: Personal Finance PWA (Built
PagueFlow: Personal Finance PWA (Built with Replit AI) A full-stack financial management application featuring expense tracking, dashboards, and authentication. Replit Development Workflow: AI-Driven Development: Heavily utilized Replit Ghostwriter to generate logic for the dashboard calculations and UI components (visible in Git history as "Assistant checkpoints"). Version Control: Managed the entire Git workflow directly via the Replit Git pane to track features and rollbacks. Integrations: Configured the connection with Supabase (Auth & Database) directly within the Replit environment variables and shell. Stack: TypeScript, Tailwind CSS, Supabase (Developed entirely in Replit).
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Cover image for BudgetCalc - Smart Project Estimator
BudgetCalc - Smart Project Estimator
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Cover image for Official Website: TENET AI (High-Conversion
Official Website: TENET AI (High-Conversion Landing Page) The public-facing portal and onboarding flow for the TENET AI ecosystem. Built with Replit: Rapid Prototyping: Used Replit's instant preview environment to iterate on the UI/UX design in real-time without local server setup. Frontend Performance: Optimized assets and code splitting directly within the Replit editor to ensure high Lighthouse scores. Zero-Config Dev: Leveraged Replit's pre-configured templates to jumpstart the development of the responsive layout. Stack: HTML5, Tailwind CSS, JavaScript (Developed in Replit).
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Fullstack Engineer(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 Klin | Custom Enterprise Application
Klin | Custom Enterprise Application
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Cover image for Playfácil | Bug fixing for LMS Application
Playfácil | Bug fixing for LMS Application
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Cover image for Rolezou | Fullstack Mobile Development
Rolezou | Fullstack Mobile Development
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21
Cover image for ToFans | Fullstack Web Development
ToFans | Fullstack Web Development
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16
Fullstack Engineer(5)
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
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Cover image for ReactNative Mobile App Development for StepInvesting
ReactNative Mobile App Development for StepInvesting
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Cover image for Mobile App Development for TeleDoc
Mobile App Development for TeleDoc
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Fullstack Engineer(2)
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
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7
Cover image for Insights AI | Web app for auto data analysis
Insights AI | Web app for auto data analysis
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9
Cover image for 2048 | Full-stack replica in a web app
2048 | Full-stack replica in a web app
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8
Cover image for Gmail AI | AI agent for email auto labeling
Gmail AI | AI agent for email auto labeling
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18
Fullstack Engineer(3)
Eduardo Batalha's avatar
Eduardo Batalha
São Paulo, Brazil
Creative Fullstack Engineer 🚀
Creative Fullstack Engineer 🚀
Cover image for Adress Info Verificator app
Adress Info Verificator app
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11
Cover image for Registration System
Registration System
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0
Cover image for Product Management API
Product Management API
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Fullstack Engineer(2)