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Ranon Barros Bezerra

@ranonbarrosbezerra

I build high-performance backend platforms and offline-first products from architecture to production.

I've built production systems for Freeler, RL Automação, and Polícia Científica de Pernambuco, taking products from architecture through deployment and long-term operation.

At Freeler, I replaced a 20–30-second SQL view with an event-driven PostgreSQL partitioned table, bringing dashboard latency below 50ms. I also own the Kotlin/Spring Boot API, Flutter mobile app, React backoffice, and CI/CD across three repositories.

For industrial automation and digital forensics, I've built a multi-node Modbus simulator, a PDF and invoice-extraction service using Textract and Bedrock, and a FastAPI/Flutter case-management system that has been the single source of truth for a 15-expert team for seven years.

I'm also building Wallye, Trezya, and Slate: multi-tenant platforms spanning offline sync, healthcare billing, blockchain anchoring, and AI systems with practical reliability, cost, and quality guardrails.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer

Current

Freeler

Oct 2024 - Present (1 year 11 months)

Owns architecture and development across the Kotlin/Spring Boot API, Flutter mobile, and React backoffice. Replaced a 20-30s SQL view with an incrementally-maintained partitioned table, cutting dashboard latency to under 50ms, and designed GPS anti-spoofing and biometric check-in.

Kotlin Spring Boot Flutter React PostgreSQL PostGIS AWS Docker GitHub Actions CI CD Fastlane Vite Pnpm

Current

Forensic Expert/Software Engineer

Current

Polícia Científica de Pernambuco

Oct 2017 - Present (8 years 11 months)

State digital forensics; built the internal software system that transitioned career toward software engineering. Designed and built a local-network system (FastAPI + Flutter desktop) replacing spreadsheet-based tracking for a 15-expert team.

fastAPI Flutter Python System Design Database Design

Consultant Software Engineer

RL Automação

Jan 2021 - Mar 2025 (4 years 2 months)

Modernized legacy logic into modern Python (FastAPI, AWS, Flutter) for internal engineering tools. Built a multi-node Modbus simulator, a PID simulator, and a FastAPI service for invoice data extraction.