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Fabiano Souza

@fabianosouza

Senior backend software engineer building high-performance C++/Java microservices and APIs for global, high-volume platforms.

Brazil

Message

I’ve spent 15+ years building high-performance backend systems with C++ and Java, from modernizing legacy components into Java-based APIs to architecting cloud-native platforms. At Zinnia, I maintain foundational C++ core libraries for an Insurtech platform processing 5M+ daily transactions, and I built 10+ REST APIs using standardized JSON schemas and API contracts.

Before that, I optimized mission-critical telecom backends at Nettracker Technology using a hybrid Golang and C++ architecture on AWS and Kubernetes for 10M+ daily transactions, and I supported 20M+ subscribers across international markets. I’ve also led large logistics implementations—like Blue Yonder (JDA) WMS/TMS for Honda at Softtek and high-performance C++/SQL WMS for enterprise clients at viastore SYSTEMS Brasil.

Experience

Work history, roles, and key accomplishments

Current

Senior Software Engineer (C++)

Current

Zinnia

Oct 2025 - Present (10 months)

Architect and maintain 15 foundational C++ core libraries processing over 5M daily transactions across a global Insurtech platform, achieving 75% code reuse across multiple product lines.

C++REST APIs JSON Unit Testing System Testing

Senior Software Engineer (C++, Java)

Wabtec Corporation

Oct 2024 - Oct 2025 (1 year)

Optimized locomotive dispatching system handling 500 trains daily using C++, Message Queue, Tuxedo and Java Swing improving response time by 15%.

C++Java Message Queues Tuxedo Java Swing Unit Testing

Senior Software Engineer (C++, Golang)

Nettracker Technology

Mar 2022 - Oct 2024 (2 years 7 months)

Modernized mission-critical backend Telecom solutions for global clients, supporting 20M+ subscribers across 3 international markets.

C++AWS Kubernetes SQL

Senior Software Engineer (Java)

Softtek

Sep 2020 - Feb 2022 (1 year 5 months)

Led Blue Yonder (JDA) WMS/TMS implementation for Honda Automotive project, boosting tracking accuracy by 30%.

Java SQL REST APIs SOAP SAP Salesforce WMS

Senior Software Engineer (C++)

viastore SYSTEMS Brasil

Jul 2014 - Sep 2020 (6 years 2 months)

Engineered high-performance C++/SQL WMS for enterprise clients managing over 100K SKUs and 1M+ daily transactions.

C++SQL WMS Reverse Logistics

Software Developer (Java)

IBM

Mar 2008 - Jun 2014 (6 years 3 months)

Spearheaded the modernization of legacy C components to Java-based APIs for Sprint Telecom, ensuring stability for a core architecture serving over 50M+ subscribers.

Java SQL Apache Camel JBoss API Testing