At 4 Way Technologies, I develop SpicyChat AI and PixelChat AI for NextDay AI across web, iOS, and Android. The platforms have 20M+ monthly visits and 600K+ app installs.
I design serverless microservices and event-driven workflows on AWS, and develop features for content moderation and payments. I also extended the Contentful CMS integration through GraphQL and engineered localization across three brand apps in nine languages.
For the in-house ChatReal AI app, I implemented in-app purchases and subscriptions with server-side receipt validation, and processed subscription updates through Google Cloud Pub/Sub. I also built NestJS APIs with rate limiting for chat and LLM endpoints.
