Rafael Hassegawa

Developed and maintained complex tax compliance modules for U.S., Canadian, and LATAM jurisdictions within a large-scale enterprise platform. Refactored and optimized legacy codebases, improving maintainability and performance of critical compliance logic.

Evaluated and validated AI-generated code, ensuring accuracy, security, and alignment with software engineering best practices. Developed structured evaluation frameworks to enhance consistency and quality of AI-assisted development outputs.

Developed and maintained core banking systems in a high-volume fintech environment, ensuring stability and compliance with strict regulatory requirements. Implemented and integrated REST and SOAP APIs to improve interoperability between internal systems and external services.

Founded and managed a digital marketing and software consultancy, delivering web and Delphi projects for local clients. Worked part-time as Senior Delphi Developer for Starling Software.

Developed and maintained Delphi applications supporting business-critical operations, ensuring system stability and long-term maintainability. Standardized development and deployment workflows, reducing operational costs by 20% and improving team efficiency.

Developed and maintained enterprise applications with a strong focus on quality, stability, and adherence to business requirements. Reduced testing costs by 60% through process improvements and more efficient validation strategies.

Developed and optimized high-performance Delphi applications supporting business-critical operations. Improved system reliability and performance in applications with complex business logic and large data processing workloads.

Led the development and maintenance of enterprise Delphi applications supporting business-critical operations. Drove code quality and maintainability by enforcing Clean Code and SOLID principles across the codebase.

Bachelor of Computer Science degree from FUMEC University in Belo Horizonte, Brazil.

English for Academic Purposes program at Browns English Language School in Brisbane, Australia.

Certificate IV in Digital Media Technologies, received as a scholarship recipient, from the Australian College of Information Technology in Brisbane, Australia.