Rodrigo Herpich Müller

Senior Software Engineer · Farroupilha, Brazil

·github.com/r-hmuller·LinkedIn·rodrigomuller.dev

Professional Summary

Senior Software Engineer with 8+ years of experience architecting cloud-native microservices and resilient distributed systems. Proven track record in high-concurrency fintech and SaaS environments, ensuring 99.9% availability for mission-critical platforms processing 500k+ daily transactions. Polyglot developer with deep expertise in Java, Python, Golang, and PHP, backed by ongoing Master's research in Kubernetes fault tolerance. Strong advocate for event-driven architectures, legacy modernization, and rigorous automated testing.

Technical Skills

Languages
Java (17/21), Python, Golang, PHP (7/8), Kotlin, JavaScript/TypeScript.
Cloud & Architecture
Kubernetes, Docker, AWS (EKS, Lambda, SQS, SNS, RDS), Generative AI (LLMs), API Design, Event-Driven Architecture, Kafka, RabbitMQ, ArgoCD.
Frameworks & Quality
Spring Boot, Symfony, Laravel, Flask, Angular, Vue.js, Playwright, PHPUnit, Dynatrace.

Experience

Testbox

Mar 2026 — Present

Backend Developer

Remote / US
  • Engineered automated B2B client integrations utilizing Python web scraping pipelines and custom API services.
  • Architected cost-efficient Generative AI (LLM) workflows, implementing prompt optimization and payload caching strategies to minimize token consumption costs by roughly 40%.
  • Enhanced backend resilience against transient API and network failures by implementing fault-tolerance patterns (Exponential Backoff, Circuit Breaker).

PicPay

Mar 2025 — Mar 2026

Backend Developer

Brazil
  • Engineered mission-critical financial settlement microservices handling ~500,000 daily transactions with 99.9% uptime using Java, Kotlin, and Spring Boot.
  • Integrated and optimized high-volume chargeback and clearing operations in direct partnership with major credit card networks.
  • Orchestrated event-driven financial flows leveraging Kafka, RabbitMQ, Kubernetes, and Dynatrace for distributed tracing.

VelV

Oct 2022 — Mar 2025

Full-Stack Developer

Portugal
  • Led the end-to-end architecture modernization of a monolithic platform for an international client, migrating to PHP 8 (Symfony) and Angular.
  • Established an automated testing culture from scratch (PHPUnit, Playwright), successfully raising and sustaining code coverage above 85%.
  • Optimized containerized development environments via Docker and built reusable UI component libraries with PrimeNG.

Petlove & Co

Sep 2021 — Oct 2022

Full-Stack Developer

Brazil
  • Engineered high-throughput polyglot microservices across Java (Spring Boot), Golang (GCP Cloud Functions), and PHP (Laravel).
  • Built and scaled responsive consumer-facing web applications using Vue.js and Vuex.
  • Automated deployment lifecycles via CodeFresh CI/CD pipelines and orchestrated service clusters on Kubernetes.
  • Implemented asynchronous messaging decouple patterns leveraging AWS SQS/SNS.
  • Remediated 15+ blocking security vulnerabilities during a post-M&A platform integration, partnering with InfoSec to enable safe system internalization.

Rede Vistorias S.A.

Sep 2018 — Apr 2020

Backend Developer

Brazil
  • Engineered core third-party system integrations, including DocuSign APIs and major Brazilian ERP platforms.
  • Designed a polyglot microservices ecosystem, introducing Python (Flask) services while stabilizing legacy PHP (Symfony) systems.
  • Managed AWS cloud infrastructure (EC2, S3, RDS), container deployments with Docker, and observability via the ELK stack.

Education

Universidade Federal de Santa Catarina (UFSC)

2025 — Present

Master's Degree in Computer Science

Brazil
  • Research Focus: Distributed Systems Resiliency — Developing a custom Golang framework for automated fault tolerance in Kubernetes environments.

Universidade Federal do Rio Grande (FURG)

2015 — 2018

Bachelor's Degree in Information Systems

Brazil
  • Undergraduate Thesis: Developed a Java SE consensus framework integrating distributed Paxos protocols (S-Paxos and BFT).