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Lucas Carmona

@lucascarmona

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Full-Stack Developer at VivaCred building a React and Laravel ERP, bank integrations, and automated credit operations.

Brazil

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At VivaCred, I built an ERP from scratch with React, TypeScript, and Laravel, and migrated a legacy PHP API with about 230 routes, backed by more than 700 automated back-end tests.

I also designed an RPA platform that runs scheduled automations on stores’ computers and resumes work after an operator handles a CAPTCHA or 2FA check. The platform automates bank commission checks and integrates bank and third-party APIs through a centralized Laravel proxy.

At quatrodois, I develop Django features across a platform for Multimarcas Consórcios, including portals, onboarding, and digital-signature integrations. I also created AI coding skills for spec-driven development and TDD; in freelance work, I build Python automations for HR teams.

Experience

Work history, roles, and key accomplishments

Current

Full-Stack Developer

Current

Quatrodois

Sep 2025 - Present (1 year 1 month)

Develop features across the client's platform using Django and Vue.js, including sales rep portal, customer portal, and onboarding. Implement modules and integrations with digital signature and webhooks, and build a mobile app in React Native.

Django Python MySQL Vue.Js React Native Webhooks Test Driven Development AI Coding Skills

Current

Automation Developer

Current

Freelance

Aug 2025 - Present (1 year 2 months)

Automated HR processes such as FGTS balance checks, termination notices, and time-attendance reports. Built a custom framework with structured logs, retries, and encrypted credentials for reliable unattended runs.

Python Automation Robotic Process Automation Selenium HR systems FGTS Digital WhatsApp API

Current

Full-Stack Developer

Current

VivaCred

Mar 2024 - Present (2 years 7 months)

Build and run internal platform for payroll-loan correspondent, including ERP, RPA platform, and public website. Migrated legacy PHP API to Laravel, designed RPA platform with human-in-the-loop flow, and integrated AI for proposal release.

React TypeScript Laravel Python Robotic Process Automation Selenium MySQL GitHub Actions Claude OpenAI Anthropic API Integration

Junior Web Developer

Backsite Serviços Online

Sep 2023 - Mar 2024 (6 months)

Developed an e-learning platform from scratch for Tecnoponta, serving 1,000+ students. Created a data warehouse on the Mercado Livre API and built a public events calendar for the São Paulo Tourism Department.

PHP MySQL API Integration Data Warehouse Web Development

Full-Stack Developer

Viva Cred

Jan 2020 - Sep 2023 (3 years 8 months)

Led the build of the company's public website in React and TypeScript. Automated repetitive operational work with Python and Selenium, collaborating with operations teams to map bottlenecks.

React TypeScript Python Selenium Automation

Education

Degrees, certifications, and relevant coursework

Universidade Católica de Santos (UNISANTOS)

Bachelor's in Computer Science, Computer Science

2023 -

Activities and societies: BidParty: real-time auction platform for Distributed Systems course; Explora+: walking-route planner app; SmartB3: stock price forecasting comparing LSTM, GRU, and XGBoost models.

Pursuing a Bachelor's in Computer Science with expected graduation in December 2026. Coursework includes distributed systems, capstone projects, and machine learning.