Happy Mammoth
Happy Mammoth is a fast-growing natural food tech business selling across the US, Australia, and Europe. We formulate, produce, and market gut, digestive, and microbiome health supplements â and performance marketing is a core growth driver for us.
This is not a brand or content role. It sits squarely in paid acquisition and performance creative. We’re looking for a Creative Strategist with a direct-response mindset â ideally someone who started as a copywriter and evolved into performance creative strategy.
Part-time freelance contractor
B2C / DTC Experience Required
EU hours (GMT)
Supplements / health a strong plus
This role is about what converts, not what “looks good.”
What you’ll actually do
- Own performance creative strategy for paid media (Meta-focused)
- Develop angles, hooks, messaging frameworks, and iterations
- Translate data (CTR, CPA, CVR, ROAS) into creative decisions
- Build and refine creative testing roadmaps
- Brief and iterate with copywriters, editors, and designers
- Analyze winning vs losing creatives and scale what works
- Continuously improve performance through structured experimentation
What we’re looking for
- Proven experience in performance marketing creative
- Strong copy background (ads, hooks, messaging â not just concepts)
- Hands-on experience working with media buyers
- Comfort owning results, not just deliverables
- Clear understanding of direct-response psychology
- Ability to move fast, test often, and iterate
Requirements
- Senior-level experience in performance creative and/or direct-response copywriting
- Proven exposure to paid media environments (Meta experience required)
- Strong understanding of conversion-focused creative and testing
- Fluency in English (CVs must be submitted in English)
- Ability to operate independently in a fast-paced, remote setup
- Available during EU working hours (GMT)
Why Happy Mammoth
- Competitive compensation aligned with senior performance roles
- Fully remote with clear ownership and accountability
- Opportunity to work on high-impact, high-scale performance campaigns
- Flexible part-time engagement â work around your schedule
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About this role & career path
Working in Berlin
Berlin is the capital of Germany as well as its largest city by both area and population. With 3.7 million inhabitants, it has the highest population within its city limits of any city in the European Union. The city is also one of the states of Germany, being the third-smallest state in the country by area. Berlin is surrounded by the state of Brandenburg, bordering Brandenburg's capital Potsdam to the southwest. The urban area of Berlin has a population of over 5 million, making it the most populous in Germany. The Berlin-Brandenburg capital region has around 6 million inhabitants and is Ger
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