Software Engineer | Full Stack | AWS | Industrial Systems & ERP
I build custom web and Android software for industrial and business operations, from client requirements through implementation, cloud deployment and production support. My core stack includes TypeScript, React/Next.js, Node.js, .NET and Flutter. Based in Manaus, Brazil.
I founded NLivero Software e Consultoria Ltda. in August 2026 and provide software engineering and cloud infrastructure consulting through my own company. My Technos projects are delivered through a separate professional partnership with the IPena Consultoria brand.
For Technos, through IPena Consultoria:
- Built a gatehouse and maintenance-request system from scratch, working directly with the client and integrating TOTVS Protheus.
- Built and maintain I-repos 1, a production Android APK distribution platform with targeted releases, device tracking, integrity checks and Flutter updater integration that opens the Android installer.
- Delivered features and fixes across releases of an inherited Flutter Android factory app, preserving ERP integrations, barcode workflows and usability on handheld scanners and landscape tablets.
- Built the Ranking logistics dashboard from scratch with Flutter Web and a server-side Dart proxy, bounded retries and retention of the last complete dataset during ERP failures.
Other work through IPena Consultoria:
- Developed and deployed a non-fiscal payroll calculation and HR administration platform; migrated application/database services to AWS Lightsail, Docker and PostgreSQL, retaining S3/CloudFront delivery, off-host backups and isolated restore/data-parity checks.
- Built the IPena brand website from scratch and deployed its Next.js static export with S3, CloudFront and Route 53 DNS.
I also repurposed an older personal laptop with hardware upgrades, Ubuntu and networking configuration, and project-specific Docker Compose environments for development and preproduction. This infrastructure remains separate from client production. A separate I-repos 2 device-management pilot explores Kotlin Device Owner policies and kiosk/allowlist management; it is not the production I-repos 1 platform.
I also implement Azure DevOps CI/CD and maintainer documentation for approval-controlled releases. Earlier work includes Python Android QA automation and QA-focused BERT classifier training/fine-tuning at INDT, separate generative AI R&D experiments, and embedded-systems research at LUDUS/UEA. Freelance contributions include Python assistants with LangChain/LangGraph and a separately delivered Next.js/React frontend MVP.
I co-authored a published SBIE 2024 paper with Fabio S. Silva on a voice-based LLM accessibility assistant, in the work-in-progress track.
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.
- AI and R&D: Python, LangChain/LangGraph (freelance), BERT classification and fine-tuning (R&D).
Open to international remote software roles and scoped B2B projects through NLivero.
Project collection (English) | Projetos e pesquisa (Portugues) | WhatsApp