At Advance World Solutions, I develop Informatica IICS ETL mappings for PostgreSQL-to-AWS S3 migrations, build Java backend logic, and create C# tools that improve development accuracy and productivity. I also lead frontend development for custom client websites, support client certificate authentication, and collaborate across frontend and backend delivery.
I've contributed to a Japanese hospital management system serving 300+ users and delivered data migration work for a major Japanese discount store, maintaining 99.9% accuracy. I bring hands-on experience in data warehousing, database design, performance tuning, testing, and team practices including sprint demos, retrospectives, code reviews, and daily stand-ups.
