Available to hire
I’m a senior software engineer with 15+ years of experience designing and optimizing high-performance backend systems across Insurtech, Telecom, and Logistics. I specialize in foundational C++ core libraries, memory management, and scalable API architectures, and I enjoy collaborating with global teams to deliver robust, production-grade solutions.
I’ve partnered with US-based and international teams to reduce technical debt, optimize database performance, and implement rigorous testing. I thrive in Agile environments and love turning complex requirements into reliable software that users rely on daily.
Language
Javanese
Advanced
Work Experience
Senior Software Engineer at Zinnia
October 1, 2025 - PresentArchitect and maintain foundational C++ core libraries powering high-volume Insurtech platforms, ensuring code reusability, optimized memory management, and production-grade reliability. Develop and integrate high-performance RESTful APIs using JSON, facilitating seamless data exchange for global client integrations. Drive the full testing lifecycle by implementing rigorous Unit and System/API testing protocols, significantly improving data integrity and reducing production bugs.
Senior Software Engineer at Wabtec
October 1, 2024 - October 1, 2025Maintained and optimized critical locomotive dispatching systems utilized by thousands of daily users, utilizing C++, Java Swing, and SQL. Enhanced system stability and resolution quality by implementing comprehensive unit testing frameworks, reducing regression issues. Streamlined issue resolution processes for cross-functional teams, directly contributing to continuous system efficiency and supporting strategic company objectives.
Senior Software Engineer at Netcracker
March 1, 2022 - October 1, 2024Engineered and modernized backend OSS/BSS Telecom solutions for major global clients (O2 UK, Vodafone Hungary, GTD Chile) using C++, PL/SQL, and Java within a Scrum framework. Optimized complex SQL queries and legacy database interactions, increasing data retrieval speed and overall software performance by 15%. Customized core billing functionalities, aligning legacy systems with modern telecom needs and driving a 15% increase in client satisfaction through tailored system responsiveness.
WMS Engineer at Softtek
September 1, 2020 - March 1, 2022Customized and scaled Blue Yonder WMS/TMS solutions, improving logistics tracking accuracy by 30% and operational efficiency by 50%. Managed the deployment and configuration of complex WMS solutions on Azure Virtual Machines, ensuring high availability and uptime for key enterprise clients.
Senior WMS Engineer at viastore
June 1, 2014 - September 1, 2020Designed high-performance logistics and warehouse management solutions for enterprise clients (Caterpillar, Electrolux) using C++ and SQL. Tuned IIS application pools and refactored SQL queries, boosting real-time processing speeds and software performance by 15%. Led deployments to Azure VMs and mentored junior engineers, promoting best practices in code quality and system architecture.
Software Engineer (Sprint Telecom Project) at IBM
March 1, 2008 - June 1, 2014Spearheaded the modernization of legacy C components to modern Java-based APIs, ensuring seamless interoperability and system stability for Sprint Telecom’s architecture. Architected a modern API layer utilizing Core Java, SQL, Apache Camel, and JBoss, achieving a 40% reduction in production tickets. Developed an innovative API testing tool to resolve message format errors, decreasing QA rejection rates by 30%.
Education
Post-Graduation, Project Management at State University of Campinas (UNICAMP)
January 1, 2018 - January 1, 2020Bachelor’s Degree, Computer Systems Analysis at FIPEP
January 1, 2002 - January 1, 2005Qualifications
Sun Certified Java Programmer 1.4 Platform
January 1, 2007 - April 2, 2026Sun Certified Java Programmer 1.4 Platform
January 1, 2007 - April 2, 2026Industry Experience
Software & Internet, Telecommunications, Transportation & Logistics
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