Software Engineer & Creative, co-founder & CTO at BLink d.o.o (Banja Luka). I build the whole product: architecture, full-stack web, mobile, AI/RAG, and the art direction on top of it.
Everything below was built in the past year. The decade before it lives at jjovan.com.
BLink d.o.o — the startup. Software a mid-sized city was still missing.
- Urbano — civic operating system for a city of 180,000 · in production
- Omaška — SaaS for psychotherapy practices: booking, clinical records, billing, client portal · live demo
- Sinapsa — clinic OS for private practices: booking, records, billing, patient portal
- BLBus — real-time public transit: GTFS-realtime feed, GPS fleet ingest over raw TCP
- Djir — ride-hailing engineered for cash-and-card regional markets
- Outreach — internal Playwright + LLM lead-generation engine, crawling at scale
Independent — client and product work, also from this year.
- Lana Zrnić — scroll-driven editorial portfolio for a photographer · live
- Longi — multi-brand commerce engine with 3D product storytelling
- Curation Engine — semantic library: embeddings cluster a collection by feeling, not folders
- Five mobile apps on Expo / React Native: Cap or Fact, VibeCheck, Bonds, WhoWatching, Yearprogress
Stack — TypeScript · React / Next.js · React Native / Expo · Node.js · PostgreSQL · Playwright · RAG / pgvector
Most of my work is in private repos; the live products are the better proof.
Portfolio and case studies: jjovan.com · contact@jjovan.com