Nikolas Andreou

Architecting a computer-vision-based virtual try-on application targeting the Cyprus fashion market for independent retailers operating via Instagram/WhatsApp. Re-engineered an open-source computer vision model into a modular multi-step inference pipeline for virtual try-on, building and self-hosting two model variants for inference on Google Cloud virtual machines. Evaluated inference cost for 24/7 self-hosting and assessed third-party dataset licensing options tied to a tiered Gemini API approach, pivoting to Gemini for near-term cost efficiency while keeping self-hosted as an in-house future path. Designed a near-zero marginal cost composing pipeline using pre-rendered per-garment transparency assets and a tiered AI model strategy to meet a strict unit-economics target (~€0.20 per generation). Architected a prepaid credit/quota system to gate AI generation costs ahead of consumption.

Built a QR-code-based, no-download photo/video sharing platform for event hosts and guests to contribute to shared albums in real time. Defined go-to-market architecture including organic/SEO growth, virality loops, and venue partnerships for pre-launch, zero marketing budget targeting the European market. Integrated Stripe, Google Pay, and Apple Pay to support pay-per-event pricing.

Founded and architected a multi-sided mobile platform connecting dancers, DJs, dance schools, and event organizers via a freemium/subscription model. Designed core product architecture including QR/GPS-based event check-in, community recognition features, and a home/feed experience. Owned end-to-end technical decisions from data model through UI/UX navigation and contextual upgrade flows. Integrated Stripe, Google Pay, and Apple Pay to support subscription payments.