NinjaTech AI Jobs

Senior Full Stack Engineer - Growth & Monetisation

NinjaTech AI

Senior Full Stack Engineer - Growth & Monetisation

Posted 2 Months Ago

Be an Early Applicant

In-Office

Sydney, New South Wales, AUS

Senior level

In-Office

Sydney, New South Wales, AUS

Senior level

Own monetisation and activation end-to-end: subscriptions, paywalls, billing, onboarding and first-use activation. Build analytics and experimentation foundations (events, funnels, A/B tests). Integrate with payment providers and handle failure modes (declines, webhooks, disputes). Drive data-informed experiments to improve funnel and revenue.

The summary above was generated by AI

Sydney · Full-time · On-site/hybrid

Self-serve consumers and enterprise seats run through the same billing and activation paths. This role owns the money and the funnel.

What you'll do

Build and own monetisation: plans, paywalls, subscriptions, credit and usage metering, auto top-up, access control and revenue share.
Own onboarding and activation end to end — signup, first task, first genuine result — and the experiments that improve them.
Build the analytics and experimentation foundations: events, funnels, attribution and A/B tests, so decisions come from data rather than opinion.
Work directly with payment providers and their failure modes: declines, webhooks, disputes and platform-specific quirks.

What we're looking for

3–5+ years full-stack with shipped experience in payments, subscriptions or growth surfaces.
TypeScript/React and Python, plus SQL fluency — you can answer your own funnel question.
Comfort owning a metric, not only a backlog.

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