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Willian Deschamps

@williandeschamps

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I build SaaS products, automations, and data pipelines with React, Node.js, and Python.

Brazil

Message

I'm building SaaS products at Urbilote, modeling urban-planning rules with calculation, validation, traceability, and auditing layers. I also implemented spreadsheet-based rule imports, Stripe subscriptions, and AWS deployment infrastructure.

Across FitConnection, Agna Credit Analysis, and MRP Solution, I've delivered React and Node.js applications, marketplace features, authentication, real-time functionality, CI/CD, and secure production deployments. My work spans PostgreSQL, MySQL, MongoDB, Docker, GitHub Actions, AWS, and role-based security.

I've also built Python ETL, scraping, and automation workflows, including lead processing with WhatsApp and OpenAI and a badge-printing automation that reduced a five-hour manual process to 25 minutes.

Experience

Work history, roles, and key accomplishments

Current

Full Stack Software Engineer

Current

Urbilote

Dec 2024 - Present (1 year 9 months)

Developed end-to-end SaaS for urban planning rule modeling with calculation engine and validation layers. Implemented backend architecture in Node.js/Express with Sequelize and MySQL, and deployed using AWS Elastic Beanstalk and GitHub Actions.

NodeJS ExpressJS Sequelize MySQL REST APIs Stripe AWS Elastic Beanstalk EC2 IAM GitHub Actions OIDC Nginx Cloudflare Cloudwatch TLS

Full Stack Software Engineer

FitConnection

Sep 2024 - Apr 2026 (1 year 7 months)

Built a marketplace platform with React frontend and Node/Express backend, featuring authentication, role-based profiles, and real-time features via WebSockets. Implemented deployment with Docker, CI/CD with GitHub Actions and AWS CodeDeploy, and security with JWT and RBAC.

React NodeJS ExpressJS PostgreSQL Sequelize MongoDB WebSockets Socket.IO Docker GitHub Actions AWS CodeDeploy Jest JWT RBAC Rate limiting

Backend Software Engineer

WhatsApp Prospect Flow

Jun 2025 - Feb 2026 (8 months)

Led ingestion and cleaning system for CSV data, including phone normalization and deduplication. Integrated WhatsApp Web for messaging and used OpenAI for message classification.

Python CSV Data Cleaning Web Based WhatsApp Interface WhatsApp Web Automation OpenAI Heuristics Logging Alerting

Full Stack Developer

Agna Credit Analysis

Jun 2025 - Nov 2025 (5 months)

Developed a React web application for client data collection and validation in a credit analysis workflow. Implemented data ingestion with Google Sheets API and delivered end-to-end deployment.

React JavaScript Google Sheets API State Management Input Validation Error Handling Deployment

Full Stack Developer

Freelance

Feb 2025 - Oct 2025 (8 months)

Developed Python pipelines for monitoring opportunities and automating proposal submissions using scraping and OpenAI-assisted generation. Reduced repetitive manual work and sped up responses to openings.

Python Selenium BeautifulSoup requests Multithreading Queue Persistence OpenAI

Full Stack Developer

MRP Solution

Jan 2024 - May 2025 (1 year 4 months)

Worked on multiple production systems and automations using React/Next.js, Node/Express, and Python/Flask. Developed frontend for BLOPS Audit, ETL pipelines for MeuCashCard, and contributed to Hyundai scheduling system and RDS AI chatbot.

React Next.js NodeJS ExpressJS Python Flask SQL NoSQL Docker ETL Airflow S3 Keycloak OpenAI

Python Developer / Administrative Assistant

Avance Serviços Administrativos

Jun 2022 - Dec 2023 (1 year 6 months)

Worked in HR and Payroll support, automating the employee badge printing workflow from SQL Server extraction to internal system automation, reducing processing time from 5 hours to 25 minutes.

Python SQL Server Automation Spreadsheets Problem Solving