About

Rodrigo Pereira — the engineer behind Rpolnx Solutions.

Senior backend engineer, currently a tech lead at Optii. Open-source by default, hands on through the whole stack from product story decomposition to Kubernetes deploys.

Selected highlights

• 8+ years building Go and JVM microservices for hotel operations, fintech, telecom, and consumer-data products.
• Architected an Itaú/PIX service for 15M+ Kafka messages/day during pre-launch of Brazil's now-dominant real-time payment rail.
• Cloud cost reductions of 30–70% across multiple companies (Optii, Portobello).
• Tech-lead scope at Optii: leads ~3 Go engineers and contributes architecture across 4 teams.
• Real DevOps depth — installs Kubernetes from scratch, runs personal infra on Linux + Podman, builds CI/CD foundations from zero.

Career

1. Jan 2023 – Present

   Senior Backend Engineer

   Optii (US)

2. Jul 2021 – Dec 2022

   Senior Backend Engineer

   FCamara / Reclame Aqui+

3. Sep 2020 – Sep 2021

   Solutions Architect → Backend / DevOps

   Portobello Grupo

4. Aug 2018 – Sep 2020

   Backend Engineer

   Zup Innovation (Vivo, Itaú/PIX)