Senior Media Buyer - TikTok

About the role

IM8 is a next‑generation health and longevity brand co‑founded by David Beckham and Prenetics (NASDAQ: PRE), launched in late 2024. In Q1 2026 revenue grew nearly 6× YoY to $33.8M, with full‑year 2026 guidance raised to $190M–$210M. Over 60% of revenue comes from outside the US, shipping to 43 countries. The brand partners with athletes such as David Beckham, Giannis Antetokounmpo, Aryna Sabalenka, Ollie Bearman, and Inter Miami CF. IM8’s flagship Daily Ultimate Essentials contains 90 active ingredients, is backed by randomized controlled trials, and operates on a subscription model where retention drives growth. The Senior Media Buyer will own and scale IM8’s TikTok Ads account as a primary acquisition channel, reporting to the VP of Growth, working within a rules‑based system that treats the account as a brand growth asset. Shortlisted candidates complete a role‑specific Beat Claude challenge, scored against a baseline generated by Claude; advancement requires thinking that outperforms the AI’s output.

Responsibilities

• Own campaign architecture at scale: structure campaigns and ad groups across multiple prospecting lanes, decide between Campaign Budget Optimization and ad‑group budgets, and determine when to hand a lane to Smart+ / Smart Performance Campaigns versus manual management.
• Run testing pods with spend floors and allocate budget across lanes with known efficiency ceilings.
• Execute daily buying under a rules‑based system: make launches, kills, scales, and budget moves per pre‑agreed thresholds and triggers; name, reason, and log every change for account legibility.
• Run structured creative testing: get new concepts to valid spend levels, protect tests from delivery concentration, maintain a flow of hooks, formats, Spark Ads, and creator content; read TikTok creative diagnostics (hook rate, hold/completion, CTR) to distinguish creative from configuration failures.
• Scale winners without breaking them: manage budget velocity, CPM inflation, audience/creative saturation to avoid resetting the learning phase.
• Cross‑check TikTok attribution against Shopify daily and make kill/scale calls based on matured, full‑day blended CAC.
• Partner with the creative team on pipeline velocity, flagging creative age and fatigue on major lanes before performance declines.
• Partner with organic/creator and TikTok Shop efforts, and contribute to expansion across secondary paid channels as the business scales.

Requirements

• 3‑5 years of hands‑on paid social media buying, with real depth on TikTok Ads.
• DTC / e‑commerce fluency: understanding of CAC, LTV, contribution margin, and the gap between platform ROAS and blended reality.
• 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.
• Creative‑first operating instinct: treat creative volume and iteration as the primary lever on TikTok, not an afterthought.