Lead Decision Scientist, Revenue - Ads, Revenue

Lead Decision Scientist, Revenue - Ads, Revenue
Data Science & Analytics

Amsterdam, Netherlands

Vinted Marketplace

Brief info about Vinted
Our mission is to make second-hand the first choice, and we're looking for people who want to help us get there. Every day, we work together to help our members buy and sell pre-loved clothing and lifestyle items, giving each piece a second life - or even a third.
The Vinted Group is made up of three business units that support this mission:
Vinted Marketplace  is Europe’s leading platform for second-hand fashion and a go-to destination for all kinds of pre-loved items, with a growing range of categories. Our platform connects millions of members across 20+ markets, helping great items find a new life.
Vinted Go  enhances the shipping experience with a vast network of over 500,000 pick-up and drop-off points, partnering with more than 60 carriers across Europe, with added services like item verification for peace of mind on high-value pieces.
Vinted Pay  is the newest part of the Vinted Group, dedicated to bringing secure, reliable payments to buyers and sellers across Europe. Seamlessly integrated into the Vinted app, it helps keep every transaction safe, efficient, and easy for our members.
Founded in 2008 in Lithuania, Vinted began as a way for friends to find new homes for clothes they no longer needed. In 2019, we became Lithuania's first unicorn! Today, our headquarters remain in Vilnius, and we've grown with offices across Europe, supported by a team of over 2,000 people.

Information about the position
Vinted’s Revenue domain is scaling fast, and our Ads business is on a mission to develop a world-class advertising ecosystem within Vinted. We are looking for a Lead Decision Scientist to act as a strategic technical partner and crucial counterpart to our Data Science Lead.

While our Data Scientists focus on optimization systems (algorithms, ranking, bidding), this senior individual contributor role is entirely focused on measurement, evaluation, and decision frameworks. You will be responsible for identifying and resolving systemic data problems, ensuring that Advertising products are evaluated consistently across advertiser performance, business impact, and overall marketplace health. You will bring structure to ambiguous decisions by defining the metrics, methodologies, and tradeoff frameworks needed to scale Ads responsibly across Vinted’s entire real estate.

In this position, you’ll

Own the Ads decision measurement framework.  Create the analytical frameworks used to evaluate major Ads decisions across product, pricing, placement, and monetization, making risks, assumptions, and tradeoffs explicit.

Develop tradeoff frameworks and guardrails.  Create the standard framework to weigh short-term ads revenue and advertiser upside against marketplace health (transactions, listings, retention). You will "price the real estate" across the app (homepage, search, messaging, etc.) for different user segments and journeys.

Define measurement and evaluation methodology.  Establish evaluation standards where standard A/B testing isn't enough, including incrementality logic, attribution approaches, quasi-experimental methods, and practical frameworks for sparse data or delayed-measurement scenarios.

Govern the Ads metric tree.  Ensure advertiser, business, and marketplace metrics are clearly defined, consistently interpreted, decision-useful, and aligned across Product, Data Science, Commercial, and Leadership teams.

Measure marketplace impact.  Translate abstract marketplace risks into measurable signals. Establish practical ways to assess how Ads affect buyer/seller experience, organic discoverability, fairness, and long-term member retention.

Partner on data and…