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Renato Back

@renatoback

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Senior software engineer specializing in Java-based platforms, modernization, and scalable backend architectures.

Brazil

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What I'm looking for

I seek senior backend or architecture roles where I can modernize legacy systems, improve resilience and observability, mentor teams, and drive scalable cloud-native practices while maintaining core functionalities working.

I am a Senior Software Engineer with over 20 years designing and modernizing backend systems for global teams, focused on resilience, observability and scalability.

I specialize in Java (8–17), Spring Boot and Quarkus, and have extensive experience refactoring legacy codebases, applying TDD, and introducing cloud and CI/CD practices to mission-critical applications.

In recent roles I modernized a global SaaS platform's Budgeting & Integrations modules, led Java version upgrades and modularization efforts, and guided teams through architecture decisions and mentoring.

I drive measurable improvements in maintainability and performance—migrating builds to Maven, building internal frameworks, improving monitoring, and restructuring ETL and data pipelines to support analytics and business needs.

Experience

Work history, roles, and key accomplishments

Senior Software Engineer

Uptempo

Jan 2022 - Jul 2025 (3 years 6 months)

Modernized and extended Budgeting & Integrations modules of a global SaaS platform, refactoring legacy Java into modular, testable components and improving resilience and observability of critical backend services.

Java Spring Boot TDD Microservices Integration Observability Refactoring CI CD SQL Bazel Kafka Cross Functional Collaboration Experimentation

Software Engineer / Tech Lead

NeoCO

Dec 2020 - May 2022 (1 year 5 months)

Consulted on backend and data projects for financial and telecom clients; modernized a banking operations hub (Java 6/8 → 11, ActiveMQ, Quarkus) and led a team of 5 engineers improving test coverage and maintainability.

Java Quarkus ActiveMQ Team Leadership ETL Automated Testing

Software Architect

Micromed

Sep 2016 - Sep 2020 (4 years)

Maintained and evolved decade-old healthcare systems while introducing modern frameworks, migrated builds to Maven, built an internal web framework (Angular + Node.js), and improved production availability through monitoring and configuration fixes.

Architecture Java Maven Angular Node Monitoring Performance Optimization

Software Engineer

Lifes Hub

Jan 2018 - Aug 2020 (2 years 7 months)

Built ETL bots on AWS (R, Java, Spring Boot, MongoDB) to scrape and process ~100GB/month of health data and delivered pipelines into Power BI for analytics.