Senior AI Engineer - Remote LLM Systems & Automation

Ruby Labs is seeking a Senior AI Engineer to own and scale the AI layer of a core D2C subscription product. You’ll be responsible for production LLM features, browser automation, prompt systems, evaluation, observability, and model selection from experiment to live release. You’ll work in a modern TypeScript stack—Next.js, Cloudflare Workers, and containers—driving reliable, cost-aware AI features with measurable impact and strong ownership.

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