Senior Data Scientist, Buyer

Brief Info About VintedOur 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. Our backers include Accel, EQT Growth, Insight Partners, Lightspeed Venture Partners, Sprints, and TPG.Information About The PositionOur team operates within the Buyer domain, the part of Vinted Marketplace that is concerned with the buyer-side of the marketplace. We develop features that enable our users to find the items they will love, whether through directed search or serendipitous discovery. Buyer domain is divided into several subdomains, each of which is an autonomous product team with its own Engineering, Design and Data Science & Analytics (DSA) specialists. You will work as a member of one of these subdomains.At Vinted, we have three distinct roles within DSA. We believe each role can make a similar business impact in different ways, and therefore our salary ranges are the same for all three roles. To understand your role within DSA context better, here are brief descriptions of each role we have in the department:Analytics Engineers are responsible for data curation – translating data needs from stakeholders into architecting, building and maintaining efficient & reliable data models and pipelines. Decision Scientists are responsible for actionable insights, identifying and sizing opportunities, and automated tools that increase the quality of product and business decisions by applying statistical methods and data-driven decision-making. Data Scientists are responsible for identifying algorithmic opportunities, ensuring those opportunities are addressed optimally, and designing, developing, and maintaining production-grade statistical and machine learning algorithms. In this position, you’ll Create and improve machine learning products focusing on retrieval and rankingContribute state-of-the-art knowledge about machine learning algorithms to ensure the competitiveness of Vinted through technologyWork with Decision Scientists to conduct experiments on new machine learning features, both offline and in customer-facing A/B testsAssist the Engineers with the operationalisation of the machine learning productsAssist the Product Manager with the estimation of opportunity sizes for machine learning initiativesParticipate in the planning and monitoring of the subdomain projectsParticipate in domain-level initiatives on machine learning and AIAbout YouHave a strong technical background through a degree in Computer Science, Mathematics, Mechanical Engineering, or a related fieldHave hands-on first experience with developing machine learning algorithms gathered in a product company or in academic researchWell-versed in Python and SQL, BigQuery is an advantageHave a structured, meticulous way of working when trying out different approaches towards a set goalBe a conscious team player who understands when their work touches that of other team members and proactively aligns with themSolid written and spoken EnglishAdvantage: Experience with recommendation, ranking or retrieval based algorithmsAdvantage: Experience working in search engines (various industries), e-commerce, two-sided marketplaces, digital advertising, or digital entertainmentAdvantage: Experience with operationalising machine learning modelsAdvantage: Good at explaining details of machine learning methods to lay audiencesWork perks The opportunity to benefit from our share options programme25 working days of holidayNewest MacBook modelsFree access to an office gymMental and emotional health support through the Mindletic appHome office support: we provide IT workstation equipment and a personal budget of up to €540 for home workplace furniturePrivate health insuranceOn-site canteen serving delicious homemade food at friendly pricesFrequent team-building eventsA personal monthly budget for shopping on VintedThe opportunity to spend up to 90 days per year - 21 of which can be spent working outside of the EU - on workationA dog-friendly officeWorking at Vinted Individual Learning BudgetWe invest in your professional growth! As part of our commitment to continuous learning, we offer an annual learning budget to support your personal and career development through courses, certifications, workshops and more.Hybrid WorkWe’ve adopted a hybrid workplace model where 2 days in office are recommended but not enforced. It’s up to you and your team to decide on the exact days you’ll spend working together in person.Equal OpportunityThe Vinted Group is committed to building an inclusive workplace where people from all walks of life feel a sense of belonging. We welcome applications from people of all backgrounds, identities and life experiences. At Vinted, all applicants are treated fairly without regard to their race, age, religion or belief, sex, national origin, citizenship, gender identity, sexual orientation, disability, or any other protected characteristic.The salary range for this position is € 3,200 - € 5,800 gross per month.