Senior Growth Engineer – Activation & Retention for AI SaaS

Company: Jack & Jill
Apply for the Senior Growth Engineer – Activation & Retention for AI SaaS
Location: London
Job Description:

readywhen.ai in London is seeking a Senior Product Growth Engineer to own the product loop from code to conclusion. You will bridge engineering and GTM, building experiments, instrumenting the activation funnel, and driving retention in a high-autonomy, full-stack role.

The ideal candidate has senior experience shipping growth features at B2B startups, expert in TS/React/SQL, and a founder mindset.

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Posted: July 14th, 2026