Onefish AI

Onefish AI is building an offline-first Progressive Web App (PWA) that delivers AI consulting to SMEs using a hybrid architecture combining browser-based Python execution (Pyodide) with intelligent cloud routing. Role: Founding AI Fullstack Engineer to own and build the core hybrid architecture. Responsibilities include PWA service worker architecture, data synchronization, multi-agent LLM design, model optimization for offline performance, and fullstack engineering across browser and cloud runtimes. Required expertise in Python (single-source browser + cloud runtimes), Svelte, Pyodide, FastAPI, Go, PostgreSQL, Docker, and browser ML. This position is on-site/hybrid in San Diego, CA, and offers a Lead Engineer → CTO trajectory. To apply, submit Resume + GitHub + 1-page cover letter + 3 references to jobs@onefish.ai with subject "Candidate: AI Fullstack Engineer - [Your Name]".