# Voice Backend Software Engineer

Location[Brazil](https://jobicy.com/resume-region/brazil.md)Rate, USD Not specifiedWork schedule Full Time,  Contract, Links   Language skills English, PortugueseAvailable for Hire Yes [Hire me](#resume-dialog)

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## About me

I am a Senior Staff Engineer with 18 years of experience designing and scaling high-availability distributed systems. My background is centered on Java and backend API development, with a strong focus on building reliable, scalable, and maintainable platforms.

I have extensive experience architecting event-driven microservices, real-time data pipelines, and high-throughput APIs that serve millions of users. I have worked across FinTech and enterprise environments, where performance, data integrity, and low-latency delivery are critical.

My technical strengths include Java, Node.js, Python, SQL, Spring Boot, Kafka, Kubernetes, Docker, AWS, and Azure. I also bring deep experience in observability, database optimization, CI/CD, and Linux-based cloud environments.

In my recent consulting work, I have led architectural strategy and hands-on engineering for European financial institutions. I have designed real-time event systems, modernized legacy monoliths into microservices, and improved scalability and delivery speed through engineering best practices.

Throughout my career, I have contributed to high-impact backend systems in financial services, CRM, SaaS, and IoT domains. I enjoy solving complex engineering problems, improving system reliability, and helping teams deliver better software faster.

I work well in distributed, cross-functional teams and value collaboration with product managers, QA engineers, and architects. I am especially motivated by opportunities to build robust backend platforms that can scale with business growth.

## Professional area

### [Developer & Engineer](https://jobicy.com/resume-category/dev.md)

## Skills

### [AWS](https://jobicy.com/resume-skill/aws.md)[Azure](https://jobicy.com/resume-skill/azure.md)[CI/CD](https://jobicy.com/resume-skill/ci-cd.md)[DevOps](https://jobicy.com/resume-skill/devops.md)[Docker](https://jobicy.com/resume-skill/docker.md)[Grafana](https://jobicy.com/resume-skill/grafana.md)[Java](https://jobicy.com/resume-skill/java.md)[JavaScript](https://jobicy.com/resume-skill/javascript.md)[Kafka](https://jobicy.com/resume-skill/kafka.md)[Kubernetes](https://jobicy.com/resume-skill/kubernetes.md)[Linux](https://jobicy.com/resume-skill/linux.md)[Microservices](https://jobicy.com/resume-skill/microservices.md)[MongoDB](https://jobicy.com/resume-skill/mongodb.md)[Node.js](https://jobicy.com/resume-skill/node-js.md)[Python](https://jobicy.com/resume-skill/python.md)[Redis](https://jobicy.com/resume-skill/redis.md)[Spring Boot](https://jobicy.com/resume-skill/spring-boot.md)[SQL](https://jobicy.com/resume-skill/sql.md)[TDD](https://jobicy.com/resume-skill/tdd.md)[TypeScript](https://jobicy.com/resume-skill/typescript.md)

## Education

Jan 2008 - Dec 2012  Bachelor's Degree in Analysis and Systems Development  @  Unisinos

Bachelor’s degree completed in RS, Brazil.

## Experience

Aug 2020 - Present  Independent Software Consultant | FinTech & Enterprise Solutions  @  Independent Software Consultant

Provided high-scale architectural strategy and hands-on engineering for European financial institutions. Designed and implemented Kafka-based real-time event systems, built backend services with Java 17+ and Spring Boot, decomposed a legacy monolith into 12 microservices, improved cloud resource usage by 35%, scaled request capacity by 1.5x, and introduced DDD and TDD practices to improve delivery rates.

Aug 2019 - Aug 2020  Senior Software Engineer (Contracting)  @  WAES

Built reactive backend APIs with Spring Boot and Postgres for telemetry from 500K+ IoT devices. Optimized database schemas and queries to reduce latency by 40%, developed Python and MongoDB data pipelines, and implemented containerized deployments with GitHub Actions for AWS Linux environments.

Dec 2018 - Jul 2019  Lead Software Engineer  @  Financial Services

Architected a microservices ecosystem using Java and Spring Boot for customer-facing financial workflows. Implemented ETL pipelines with Python and MongoDB, established Docker and Kubernetes automation with Jenkins to AWS, and improved risk insight delivery by 15%.

Sep 2017 - Dec 2018  Senior Software Engineer  @  CRM & Lead Enrichment

Designed an event-sourced backend using Java, Spring Boot, and Kafka for a CRM serving 5M customers across 400+ branches. Increased lead enrichment throughput 10x through MongoDB indexing and Kafka consumer group optimization, and led observability initiatives using Grafana and ELK.

Jun 2011 - Apr 2017  Lead Senior Software Engineer  @  Sispro Software

Led migration of nationwide B2B applications to a cloud-native SaaS architecture using Java, Spring Boot, and Docker on AWS. Built reusable Java component libraries adopted by 60+ engineers and supported onboarding of 200+ B2B customers while maintaining platform stability.

May 2008 - Jun 2011  Software Engineer  @  Multiple enterprise backend systems

Contributed to enterprise backend systems across .NET, C#, SQL, and ASP.NET MVC. Progressed from Junior to Mid-level while taking ownership of increasingly complex backend and integration tasks.

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