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Posted May 3, 2026

Growth Marketing Manager (CRO & Ecommerce Optimization)

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The Opportunity

Happy Mammoth is looking for a Team Lead, E-commerce to own the entire digital commercial engine across our Shopify Plus stores (US, EU, AU) and Amazon marketplace. This is not a "manage the website" role. You will be directly responsible for on-site revenue performance, funnel development, compliance governance, and technical stability across every revenue-generating digital property we operate.

About Happy Mammoth

Happy Mammoth is a fast-growing natural health company formulating, producing, and marketing gut health and hormone-balancing supplements to millions of customers across Australia, the United States, and Europe. We operate direct-to-consumer through Shopify Plus and Amazon, with deep roots in performance marketing and direct response. This is a company built on speed, testing, and commercial results.

The Role

You will lead the e-commerce function and own six critical outcome areas:

What We’re Looking For

You have senior-level experience running e-commerce operations in a direct-to-consumer environment, ideally in health, supplements, or a similarly regulated vertical. You understand Shopify Plus deeply, not just as a user but as someone who has overseen store architecture, checkout optimization, and multi-store operations at scale.

You are fluent in funnel metrics: CVR, AOV, RPV, LTV, and CAC are part of your daily vocabulary. You have directed the creation and optimization of landing pages, PDPs, and commercial funnels, and you have overseen structured A/B testing programs with measurable results.

You understand how compliance works in regulated industries. You do not need to be a regulatory expert, but you have experience working with legal teams to ensure content is compliant, and you know how to build systems that prevent compliance issues from slipping through.

You are technically sharp. You can read site speed reports, diagnose checkout issues, and direct developers to fix problems - not just file tickets and wait.

You move fast, make decisions with imperfect information, and take full ownership of outcomes. You set direction for your team and hold them accountable for execution. You do not need to be told what to do. You see the problem, diagnose it, and mobilize the right people to fix it.

This is a hands-on role. You are expected to be directly involved in execution — not just defining strategy, but driving implementation and results.


Your team

You will lead a cross-functional team of developers and marketplace specialists, with additional support from design, copy, and project management. You report directly to the Head of Growth.

Nice to Have


Why Work With Us?

Only CVs in English will be considered.
Interested in this role?Apply on iHire