Production sports-streaming platform built from MVP to revenue as a solo engineer. Handles RTSP ingestion, real-time video processing via FFmpeg, and distributed delivery across 11 multi-court venues — processing ~2TB/hr. Achieved ~80% user-to-purchase conversion via integrated Stripe payments.

A developer tool built in Java and published on the JetBrains Marketplace. Load CSV, Excel, or JSON files directly in IntelliJ IDEA, profile every column, apply a point-and-click cleaning pipeline, and get ready-to-run Python code generated automatically — no separate environment needed.

Estate access management platform live on the Apple App Store and Google Play Store. Multi-module Spring Boot backend using hexagonal architecture — supports visitor invitations, QR/access-code verification, guard workflows, SOS incidents, and role-based access control with Keycloak OAuth2/OIDC.

Java 21 / Spring Boot backend using modular monolith and ports-and-adapters architecture. Features JWT authentication, TMDB integration, ratings, reviews, watchlists, and recommendations backed by PostgreSQL — deployed with Docker on Fly.io.