Christopher Shim

Built merchant admin dashboard features in React/TypeScript, including beneficial-owner compliance review flows aligned with evolving backend API contracts. Implemented QStash/Upstash webhook signature-verification middleware to eliminate intermittent byte-level signature failures and developed onboarding ID-verification validation across multiple entity types.

Maintained and extended JN Bank's core banking application (C#, VB.NET, ASP.NET), reducing development time ~30% and improving efficiency ~25%. Optimized SQL Server queries (~25%) and migrated a core module to Angular, improving application performance ~40%.

Developed a receipt-digitalisation application using React.js and Node.js, cutting banking-process completion time ~30%. Reduced deployment times ~40% with Kubernetes and Helm, improved server-side reliability ~70% with unit testing, and standardized API documentation in Postman to reduce onboarding time ~30%.

Built and maintained features for a React-based talent-management platform across KPMG member firms by turning designs into responsive, reusable components. Improved application efficiency ~25% through rendering and load-time optimizations and integrated frontend with backend APIs while meeting enterprise security-compliance requirements.

Ran UAT cycles with project stakeholders, achieving 99% release accuracy. Documented and triaged defects with developers to resolve issues before launch.

Supported customer onboarding rollouts, achieving a 97% resolution rate. Assisted with onboarding to ensure customers could successfully complete setup and use the service.

Master of Computer Science with a focus on Big Data Systems, expected to complete in December 2026.

Bachelor of Science in Information Technology completed from August 2018 to December 2021.