Senior Media Buyer - TikTok at Prenetics

United States

<p>IM8 is a next-generation health and longevity brand co-founded by David Beckham and Prenetics (NASDAQ: PRE), on a mission to make world-class nutritional science accessible to everyone. Launched in late 2024, IM8 grew Q1 2026 revenue nearly 6x year-over-year to $33.8M, and the company has raised full-year 2026 IM8 revenue guidance to $190M-$210M. Over 60% of revenue is generated outside the US. We ship to 43 countries, and our athlete partner roster includes David Beckham, Giannis Antetokounmpo, Aryna Sabalenka, Ollie Bearman, and Inter Miami CF.</p><p>We are built on science, not story - our flagship Daily Ultimate Essentials carries 90 active ingredients, we run randomized controlled trials on our products, and we hold a clinical-grade standard in a category notorious for shortcuts.</p><p>Our business is subscription at its core. Every basis point of NRR we add compounds - into LTV, into payback, into the ability to outspend everyone else on acquisition. Retention isn't a department at IM8. It is the model.</p><p><strong>Why This Role Is Different</strong></p><p>Most media buying roles inherit a messy account and spend years cleaning up someone else's logic. This one is the opposite problem: you are building the lane, not babysitting it. TikTok is where IM8's next wave of new customers is, and paid social there behaves nothing like Meta - it is creative-led, it fatigues fast, and the account rewards operators who treat it as a testing engine, not a set-and-forget budget. Every wasted dollar of spend is a dollar not compounding into customer lifetime value, and on a subscription model with the LTV we're building, sloppy buying compounds against you fast. We run paid as a rules-based system - spend frontiers per lane, kill limits, scaling ceilings, pause-don't-delete discipline, mandatory change logging, daily diagnostics. We need someone who treats a TikTok account as a brand growth asset with real operating discipline, not a dashboard to babysit.</p><p><strong>The Opportunity</strong></p><p>We are looking for a Senior Media Buyer - IM8 Health, based in Hong Kong, to own day-to-day buying on IM8's TikTok Ads account and scale it into a primary acquisition channel, reporting to the VP of Growth. Multiple prospecting lanes, a relentless creative pipeline, one explicit rules-based system that you run, improve, and answer for. <strong>Your mandate:</strong> own blended new-customer CAC against Shopify as the source of truth - not platform-attributed numbers - and make every buying decision legible, logged, and defensible.</p><p><strong>What You'll Do</strong></p><p><strong>Own campaign architecture at scale</strong></p><ul><li><p>Structure campaigns and ad groups across multiple prospecting lanes, making deliberate Campaign Budget Optimization vs ad-group-budget calls, and knowing when to hand a lane to Smart+ / Smart Performance Campaigns versus run it manually</p></li><li><p>Run testing pods with spend floors and allocate budget across lanes with known efficiency ceilings</p></li></ul><p><strong>Execute daily buying under a rules-based system</strong></p><ul><li><p>Make daily launches, kills, scales, and budget moves under pre-agreed thresholds and triggers</p></li><li><p>Name, reason, and log every change so the account is legible to someone who didn't build it</p></li></ul><p><strong>Run structured creative testing</strong></p><ul><li><p>Get new concepts to valid spend levels and protect tests from delivery concentration; TikTok is won or lost on creative volume, so keep hooks, formats, and Spark Ads / creator content flowing</p></li><li><p>Read the creative diagnostics TikTok actually gives you - hook rate, hold and completion, CTR - and distinguish creative failures from configuration failures - bid strategy, exclusions, broken destinations, pixel/Events API gaps</p></li></ul><p><strong>Scale winners without breaking them</strong></p><ul><li><p>Scale without resetting the learning phase; manage the interplay of budget velocity, CPM inflation, and audience/creative saturation on a platform that fatigues faster than Meta</p></li><li><p>Cross-check TikTok attribution against Shopify daily and make kill/scale calls on matured, full-day blended CAC</p></li></ul><p><strong>Partner and expand</strong></p><ul><li><p>Work with the creative team on pipeline velocity, flagging creative age and fatigue on major lanes before performance shows it</p></li><li><p>Partner with organic/creator and TikTok Shop efforts, and contribute to expansion across secondary paid channels as we scale</p></li></ul><p><strong>What We're Looking For</strong></p><ul><li><p>3-5 years of hands-on paid social media buying, with real depth on TikTok Ads</p></li><li><p>DTC / e-commerce fluency: you understand CAC, LTV, contribution margin, and the gap between platform ROAS and blended reality</p></li><li><p>Deep working knowledge of TikTok mechanics: learning phase behaviour, delivery concentration within ad groups, bid strategies (Lowest Cost, Cost Cap, Bid Cap, Value Optimization) and their failure modes, Smart+ / Smart Performance Campaigns, attribution windows and maturation, and the TikTok Pixel / Events API</p></li><li><p>A creative-first operating instinct: you treat creative volume and iteration as the primary lever on TikTok, not an afterthought</p></li><li><p>Rigorous operating habits: change logs, naming conventions, threshold-based decisions - not vibes</p></li><li><p>Based in Hong Kong or willing to relocate</p></li></ul><p><strong>Non-Negotiable</strong></p><ul><li><p>You have personally structured, scaled, and been accountable for $10M+/year in TikTok ad spend - not reported on it, owned it - or a clear, specific reason why that benchmark doesn't apply to your trajectory. If you can't make that case in a sentence, this isn't your role.</p></li></ul><p><strong>Nice to Have</strong></p><ul><li><p>Buying experience on Meta and/or AppLovin</p></li><li><p>Spark Ads, creator whitelisting, or TikTok Shop paid experience</p></li><li><p>Subscription-business and retention-aware acquisition experience</p></li><li><p>Health, wellness, or supplements experience</p></li></ul><p><strong>You Must Be AI-Native</strong></p><p>Active, fluent daily AI tool usage is mandatory, not optional. We expect you to be embedding AI into every workflow you touch on day one.</p><p><strong>Beat Claude Challenge</strong><br>Shortlisted candidates complete a role-specific assignment, scored against a baseline we generate using Claude - same data, blind review. It covers account build, buying rules, and live diagnosis of a broken account snapshot. We care about judgment under real constraints, not portfolio decks. To advance, your thinking needs to be better than what the best AI produces. Ties don't advance. <br><br><strong>Want to stand out? </strong>Head to our GitHub repo and submit your Beat Claude challenge: https://github.com/Prenetics/beat-claude</p><p></p>