Performance Marketing Manager in London

Join the Future of Commerce with Whatnot! Whatnot is the largest live shopping platform in North America and Europe to buy, sell, and discover the things you love. We are re-defining e-commerce by blending community, shopping, and entertainment into a community just for you. As a remote co-located team, we are inspired by innovation and anchored in our values. With hubs in the US, UK, Germany, Ireland, Poland, and Australia, we are building the future of online marketplaces together.

As a Performance Marketing Manager for Europe, you will play a key role in identifying, testing, and scaling emerging paid media channels that can accelerate Whatnot's growth. You will execute campaign experiments, analyse results, and build frameworks that enable Whatnot to expand beyond established platforms. You will report to the Director of Performance Marketing and collaborate closely with channel leads, creative, data, and finance to validate and grow new sources of efficient demand. This role is ideal for someone who is deeply hands-on, data-driven, and excited by the challenge of launching new performance programs from scratch. Team members in this role must live within commuting distance of our London, UK hub.

Key Responsibilities

• Launch and manage emerging digital and offline channels for acquisition.
• Build structured testing roadmaps to validate channel fit and measure incremental impact.
• Execute full-funnel tests from creative development, audience segmentation, and bid strategy to drive learnings and performance outcomes.
• Help formalise early stage channels into repeatable, scalable playbooks for broader adoption.
• Own day-to-day execution and performance monitoring for early stage channels.
• Analyse spend efficiency, conversion rates, and LTV metrics to optimise toward CAC, ROAS, and payback goals.
• Partner with creative teams to continuously iterate on messaging and formats based on data driven feedback loops.
• Partner with Data, Finance, Product, and broader Marketing teams to ensure campaigns are accurately tracked, measured, and reported.
• Communicate actionable insights to stakeholders and propose next steps for scaling.
• Keep abreast of the latest ad tech, attribution methods, and analytics solutions.
• Recommend tools and platforms to enhance targeting, measurement, and campaign scalability on a global level.

You

• 4-6 years of experience in performance marketing, growth marketing, or digital media.
• Hands-on experience managing paid campaigns across multiple self-serve ad platforms with significant budget.
• Strong command of key metrics and data analysis to drive campaign outcomes.
• Experience creating and iterating on world-class creative that resonates across diverse cultures.
• Builder mentality that thrives in ambiguity and knows how to drive end-to-end experimentation with measurement rigor.
• Comfortable working cross-functionally with data, finance, engineering, and marketing teams, balancing both strategic and tactical responsibilities.

Benefits

• Generous Holiday and Time off Policy.
• Health Insurance options including Medical, Dental, Vision.
• Work From Home Support.
• Home office setup allowance.
• Monthly allowance for cell phone and internet.
• Care benefits.
• Monthly allowance for wellness.
• Annual allowance towards Childcare.
• Lifetime benefit for family planning, such as adoption or fertility expenses.
• Retirement; Pension plans internationally.
• Monthly allowance to dogfood the app.

All Whatnauts are expected to develop a deep understanding of our product. We are passionate about building the best user experience, and all employees are expected to use Whatnot as both a buyer and a seller as part of their job (our dogfooding budget makes this fun and easy!).

Parental Leave

16 weeks of paid parental leave + one month gradual return to work (company leave allowances run concurrently with country leave requirements which take precedence).

EOE

Whatnot is proud to be an Equal Opportunity Employer. We value diversity, and we do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, parental status, disability status, or any other status protected by local law. We believe that our work is better and our company culture is improved when we encourage, support, and respect the different skills and experiences represented within our workforce.