Performance Marketing Manager

About Worldside Worldside is the commercial operator for global sport. We're an AI company with our own AI operator. We run the global commercial business of sports clubs, leagues, tournaments, sports brands and sports retailers: fans, sponsors, kit, matchday and stores, localised for every market and run around the clock. Our clients keep their fans, their data and their revenue. We work behind the badge, never in front of it. Salary: range to confirm. The role You'll find our clients' fans and customers wherever they are in the world, and bring them to a local store, membership or matchday package that feels made for them. That might mean a club's first kit launch in South Korea, a tournament selling fan packages in the US, or a golf brand opening a new market in the Middle East. You'll plan and run paid media across many markets and many clients at once, in their own languages and on the channels people there really use. You'll work with our commercial, creative, data and engineering teams, and alongside our AI operator, which handles much of the day-to-day bidding, budget pacing and reporting within rules you set. What you'll do • Build paid media strategies, market by market, for clubs, leagues, events, sports brands and retailers, tied to clear commercial goals: new fans and customers, store revenue, memberships and matchday sales. • Plan, launch and optimise campaigns across search, social, display, video, app and retail media, including Google Ads, Meta, TikTok, YouTube, Apple Search Ads and Amazon Ads. • Run the local channels each market needs, such as Naver and Kakao in South Korea, LINE and Yahoo! Japan in Japan, and the leading platforms in the Middle East and elsewhere, working with local teams where it helps. • Plan around the sporting calendar: kit launches, transfer windows, fixtures, tournaments and peak weeks, with campaigns ready to go when the moment comes, whatever the time zone. • Manage budgets across clients and markets: allocation, bidding strategies, pacing and spend control, with clear approval limits. • Set the rules the AI operator works within for bidding, budgets, audiences and creative, check its work, and decide what needs a person's sign-off. • Brief and test localised creative and ad copy with our creative team and in-market reviewers. Local, not translated. • Help sponsors get value in new markets, using paid media to activate partnerships and report what was delivered. • Track CTR, conversion rate, CPA, ROAS, new-customer revenue and lifetime value, and turn the data into clear recommendations. • Lead testing: A/B and creative tests, landing page tests with our Shopify engineers, and incrementality tests that show what really drives results. • Make sure tracking is right and compliant: GA4, server-side tagging, conversion APIs, Consent Mode, and UK GDPR, EU and local privacy rules in each market. • Keep clients' ad accounts, audiences and data in the client's name and under their control. • Build strong relationships with media platforms, agencies and local teams. • Report clearly to clients and to our leadership team: what we spent, what it delivered, and what we'll do next. What you'll bring • Solid experience planning and running paid media across several channels and international markets, ideally in ecommerce, sport, retail or consumer brands. • A track record of managing large budgets across multiple markets or clients, and of growing results you can explain and evidence. • In-depth knowledge of Google Ads, Meta and TikTok, and their automated bidding and campaign types (for example Performance Max and Advantage+). • Strong analytical skills: comfortable in GA4, ad platform reporting and spreadsheets, and confident turning complex data into simple decisions. • A good grasp of measurement: attribution, incrementality and how privacy changes affect tracking. • Strong project management, with the ability to run many campaigns at once and lead people across teams who don't report to you. • Clear, confident communication, in writing and in front of clients and senior stakeholders. • Commercial sense: you think in revenue and profit, not just clicks. • Google Ads and Meta certifications are welcome. A degree in marketing or a related subject is useful but not essential. We care more about what you've done. Nice to have • Experience in sport: clubs, leagues, events, sports brands, ticketing or licensed merchandise. • Running campaigns in Asia, the Middle East or the US, or with right-to-left or East Asian languages. • Shopify and Shopify Markets, and how paid media connects to a multi-market store. • Marketplace and retail media, such as Amazon, Tmall or Zalando. • Marketing mix modelling or other advanced measurement. • Working well with AI and automation, and knowing when to step in. • A second language. How we work • Local, not translated. We build for the fan in Seoul at 9pm, not for head office. We test in the market, in the language, on the channels people actually use. • Always on, always in the rules. We move fast, but every action is approved where it matters, recorded and reversible. • Honest. We say what we know and what we don't. We'd rather ask than guess, and we never make up a figure. • Small first steps. We start with one market, prove it works, then grow it. • Behind the badge. The club, the event or the brand is the star. Our work makes them look good in every market. • One team. Commercial people, creatives, engineers and our AI operator work as one. Good ideas can come from anyone. What we offer • Salary and any equity or bonus — to confirm. • Holiday allowance — to confirm. • Pension — to confirm. • Hybrid or remote working pattern — to confirm. • Learning budget, including platform certifications — to confirm. • A chance to help build a new company from the start, working with clubs, events and brands around the world. How to apply Apply using the form on this page. Attach your CV and include a short note about a campaign you're proud of. Tell us the goal, what you did, what it delivered and what you'd do differently. Leave out anything a past employer or client wouldn't want shared. Worldside is an equal opportunities employer. We welcome applications from everyone, and we'll make reasonable adjustments at any stage of the process. Just tell us what you need.