Software Engineer | Full Stack, Backend, Cloud, Industrial Integrations
I build and maintain industrial and business software, combining full-stack development with Android QA, Linux/AWS operations, and production support. Based in Manaus, Brazil.
I founded NLivero Software e Consultoria Ltda. in August 2026, an independent software and technical consulting practice alongside my project work through IPena Consultoria.
For Technos, through IPena Consultoria:
- Developed a gatehouse and maintenance-request system integrated with TOTVS Protheus.
- Developed and maintain a production Android APK distribution platform with targeted releases, device tracking, and Flutter updater integration.
- Delivered device-count corrections and optional Web/API HTTPS, with integrity checks and Android installer handoff.
- Maintain and modernize an inherited Flutter Android factory application, preserving ERP contracts, barcode workflows, and usability on collectors and landscape tablets.
- Developed a Flutter Web logistics dashboard with a server-side Dart proxy, bounded retries, and retention of the last complete dataset during ERP failures.
- Implemented Azure DevOps delivery workflows and maintainer documentation, keeping web-service promotion and APK distribution separate.
My work through IPena also includes taking over and expanding an inherited production non-fiscal payroll and HR administration platform, maintaining its web/API/database workflows, and simplifying its AWS infrastructure.
Earlier experience includes Python automation for Android QA at INDT and embedded-systems R&D at UEA.
Client source code and operational data remain confidential.
- Web and APIs: TypeScript, React, Next.js, Node.js, NestJS, Express, ASP.NET Core, REST APIs, TOTVS Protheus integrations.
- Mobile and quality: Flutter, Dart, Python, Android, ADB, UI Automator, pytest, Playwright, regression testing.
- Data and delivery: PostgreSQL, Linux, Docker/Compose, AWS, Azure DevOps, CI/CD, Git.