Freelance Frontend Engineers in São Roque

Freelance Frontend Engineers in São RoqueFreelance Frontend Engineers in São Roque

Projects People

Leonardo Csik Peres

Fullstack Engineer specializing in React JS

Fullstack Engineer specializing in React JS

Cover image for LeoCPeres/pokemon

LeoCPeres/pokemon

0

9

Cover image for LeoCPeres/02-dtmoney

LeoCPeres/02-dtmoney

0

27

Cover image for LeoCPeres/letmeask

LeoCPeres/letmeask

0

10

Placeholder project card media

View more →

Frontend Engineer(3)

Andrei Flausino

São Roque, Brazil

Responsive Frontend & Fullstack Engineering

Responsive Frontend & Fullstack Engineering

Cover image for High Landing - Landing Page

High Landing - Landing Page

1

2

Cover image for Responsive Christmas Website

Responsive Christmas Website

1

3

Cover image for Full-Stack Blog

Full-Stack Blog

1

1

Cover image for Personal Portfolio

Personal Portfolio

0

3

Frontend Engineer(4)

Sorocaba, Brazil

Building AI Agents & SaaS with Next.js

Expert

Building AI Agents & SaaS with Next.js

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).

0

66

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).

0

63

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).

1

101

Cover image for LeadInsights: Data Mining Tool (Developed

LeadInsights: Data Mining Tool (Developed in Replit) A Python-based lead qualification tool. The entire development lifecycle, from initial scripting to final debugging, was executed within the Replit cloud IDE. Replit Development Workflow: Zero-Setup Environment: Leveraged Replit's pre-configured Python environment to immediately start coding complex data processing scripts using pandas and BeautifulSoup without local dependency hell. Interactive Debugging: Utilized the Replit Shell heavily to run ad-hoc data scraping tests and inspect data frames in real-time before integrating them into the main application logic. Package Management: Managed Python dependencies directly through the Replit console, ensuring a reproducible development environment. Stack: Python, Pandas, Web Scraping Libraries (Developed directly in Replit).

1

74

Frontend Engineer(1)

Barueri, Brazil

Expert Software Developer: Elevating Your Business

Expert Software Developer: Elevating Your Business

Cover image for Health-ERP App for Health Tech Company

Health-ERP App for Health Tech Company

0

3

Cover image for Open Insurance Brazil - Quote Patrimonial API Implementation

Open Insurance Brazil - Quote Patrimonial API Implementation

0

26

Cover image for Golang Fibonacci REST API

Golang Fibonacci REST API

0

5

Cover image for mock-services

0

1

Frontend Engineer(1)