Senior Full Stack Engineer - Growth & Monetisation

NinjaTech AI

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Sydney, NSW, Australia Until 10/5/2026 3+ years exp First posted August 6, 2026 Last posted August 6, 2026
Job description

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.

About this role

Summary

Develop and own monetisation, onboarding, analytics, and payment integrations.

Job title

Senior Full Stack Engineer - Growth & Monetisation

Experience level

3+ years

Minimum experience

3+ years exp

Industry

software

Location requirements

On-site in Sydney, remote not allowed.

Salary

Not specified

Management role

No

Skills & keywords

Required skills

TypeScriptReactPythonSQL

Preferred skills

None specified

Specializations

full-stackpaymentssubscriptionsgrowthanalytics
Locations

Structured locations inferred from the posting.

Sydney NSW, Australia

On-site City