I build interfaces for complicated data.

Spaced-repetition exam prep for IT certifications, launching with AWS Cloud Practitioner. Designed, built, and run solo: scheduling engine, passwordless and Google auth, and a content pipeline where every question cites official AWS documentation. Runs on Next.js and Postgres as a web-first PWA.

Frontend architecture and development of a large-scale internal analytics platform for energy and climate data. Built complex time-series visualizations, percentiles, and historical comparisons, with a strong focus on performance and maintainability. UI and code are proprietary.

Led frontend development of a custom in-house ticketing system, integrating an Angular application with Sitefinity CMS. The main challenge was syncing real-time seat availability across multiple performance calendars while keeping the editorial experience simple for the marketing team. Chose Sitefinity for its .NET ecosystem fit and flexible content modeling for seasons, shows, and events.

Internal point-of-sale system used by retail clients to manage sales, inventory, and daily operations. Worked on frontend workflows for sales, refunds, and reporting, focusing on reliability and speed in high-throughput environments. Built custom separate modules for restaurants, museums and self-checkout. Integrated closely with backend business logic and external hardware.