At Citadel, I developed a React and TypeScript portfolio analytics workspace for investment and risk teams. Reusable chart components, typed API contracts, and Redux Toolkit helped reduce median dashboard interaction latency from 420 ms to 185 ms.
I implemented RxJS real-time market-data subscriptions and redesigned portfolio interfaces, reducing unnecessary component updates by 46% and main-thread processing time from 310 ms to 128 ms on a representative dataset. I also built Cypress tests that increased automated coverage of critical frontend workflows from 67% to 89%.
Previously, at Slalom, I developed a React and TypeScript retail customer portal and improved its mobile product discovery experience, reducing observed Largest Contentful Paint from 3.8 seconds to 2.3 seconds. At Allegro, I built marketplace product-discovery components and introduced Redux state management; earlier, as a Software Engineering Intern at TNO, I developed interfaces for research datasets and JavaScript tests.
