Guillermo Castro

Senior Software Engineer — Back-end Development, Cloud Solutions

Senior back-end engineer with nearly 30 years building and scaling Java and Python systems for retail, e-commerce, and finance; from microservices and cloud-native platforms to integration and messaging infrastructure. Recognized by teams as a Java subject-matter expert and mentor, with recent focus on AI-assisted development workflows (GitHub Copilot, Claude Code, Cursor) to accelerate delivery and modernize legacy codebases.