Senior AI Engineer - Remote, Unlimited PTO, Production LLM

Ruby Labs Ltd. seeks a Senior AI Engineer to own and scale the AI layer of a core D2C subscription product. You will lead production LLM features, structured outputs, and browser automation end-to-end—from experiments to live release—with emphasis on quality, reliability, and cost. You will work in a modern TypeScript stack (Next.js, Cloudflare Workers, containers) and own prompts, evaluation, and model selection while ensuring safe and scalable automation across Browserbase and Playwright.

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