AI Systems Architect

Ohad Phoenix Oren is an AI Systems Architect based in the US, available for remote work as a Full-time Contractor. They are highly skilled in a broad range of technologies including React 19, TypeScript, Python (FastAPI), Node.js, React Native + Expo, multi-model AI orchestration (Claude, GPT, Gemini, Copilot), A2A protocol, agentic loops, Turso, Railway, and Stripe.

They have a proven track record of building production platforms, notably a system serving over 490,000 users across 4 applications from a single codebase. Their live applications include sauc-e.com (parent platform), cats-up.app (AI Socratic tutor), cats-up.fun (emotional intelligence AI with agentic loops and A2A protocol), and catsup.net (real-time link threat scanner).

Their architectural expertise focuses on multi-model orchestration, enabling LLM-agnostic systems with zero client-side API keys. They emphasize efficiency, claiming to replace the need for a frontend, backend, AI engineer, and DevOps specialist, delivering results in weeks rather than quarters.

Their services are offered at different hourly rates:
* $99/hr for Build (Frontend, API integration, UI/UX, static deployment, maintenance)
* $150/hr for Build + Ship (Full-stack production including React + Python/Node, database, cloud, mobile, payments, CI/CD)
* $300/hr for Architect (Multi-agent AI orchestration, A2A protocol, custom LLM systems, agentic loops, semantic filtering, security hardening, zero-to-production platform).