Valiant Joe

I’m a Senior full-stack engineer with 8+ years building and shipping production systems across iGaming, fintech, AI, and consumer mobile. I specialize in real-time multiplayer architecture, transaction-safe wallet engines, provably-fair gaming infrastructure, and AI orchestration on the Anthropic Claude API stack.

At Fatser (Via Deel), I own a multi-tenant PostgreSQL design with Row-Level Security, enforcing tenant data isolation at the database layer. I author portal-scoped, moderation-aware RLS policies and safely re-runnable Supabase/PostgreSQL migrations, then architect the AI orchestration layer that routes tasks across model providers while enforcing per-tenant prompt boundaries.

I also build tenant-aware semantic search with pgvector using 1024-dim Voyage AI embeddings, ensuring retrieval never leaks across tenants. On the reliability side, I implement an API-middleware cost-protection and quota system on Upstash Redis, enforcing hard token and request limits before any model call, with usage tracking and threshold alerting.

Previously at Highzcore.tech, I delivered 20+ production applications end-to-end, including a custom real-money casino platform with provably-fair games, WebSocket multiplayer, transaction-safe wallets, and operator admin dashboards. I’ve also shipped RAG pipelines (Claude API + Pinecone), React Native consumer apps with RevenueCat IAP, and full-stack platforms on Next.js/Node/MongoDB/Supabase, and I’m open to international relocation and visa-sponsored roles.