Data Scientist, Buyer at Vinted | BE, DE | Rezi

Data Scientist, Buyer at Vinted

Data Scientist, Buyer

Vinted · BE, DE

1 months ago

Data Scientist, Buyer

Vinted · BE, DE

a month ago
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About the Role

The Buyer Domain at Vinted is dedicated to creating a seamless, delightful, and highly engaging experience for members as they search, discover, and purchase items. We are looking for talented Data Scientists to join two specialized, ML-focused teams: Search Relevance and Recommender Relevance. These teams are core to Vinted's success in connecting buyers with unique, peer-to-peer listings at scale.

Responsibilities

  • Build and optimize end-to-end machine learning models for retrieval, ranking, and personalization.
  • Partner closely with platform and software engineers to serve models directly in search and recommendation engines, optimizing for high throughput and millisecond-level latency budgets.
  • Lead or contribute to collaborative design proposals for new modeling approaches, features, or training pipelines.
  • Define tracking requirements, perform offline evaluations, and design and analyze online A/B tests to measure real-world business impact.
  • Collaborate with Data, Engineering and Product stakeholders to identify product opportunities, translate business problems into ML objectives, and align on technical trade-offs.
  • Share knowledge, participate in peer reviews, and actively contribute to the growth and development of other scientists in the ML Guild and the Data Science & Analytics function.

Requirements

  • A strong collaborator with hands-on experience designing, training, and deploying machine learning models in a production environment (ideally within search, recommendations, or large-scale personalization).
  • High proficiency in Python and SQL.
  • Experience with deep learning frameworks and gradient boosting libraries.
  • Solid understanding of modern information retrieval, Learning-to-Rank (LTR), semantic search, or sequence-based user preference modeling.
  • Experience or strong interest in high-performance model serving.
  • Familiarity with search/vector engines like Vespa or Elasticsearch, and serving frameworks like Triton, is a plus.
  • Comfort working with massive datasets in modern cloud-based data warehouses.
  • Strong grasp of statistics, offline evaluation metrics, and online A/B testing methodologies.

Skills

  • Python
  • SQL
  • Deep learning frameworks
  • Gradient boosting libraries
  • Information retrieval
  • Learning-to-Rank (LTR)
  • Semantic search
  • Sequence-based user preference modeling
  • High-performance model serving
  • Vespa
  • Elasticsearch
  • Triton
  • Cloud-based data warehouses
  • Statistics
  • Offline evaluation metrics
  • Online A/B testing methodologies

Location

  • Vilnius

Work Type

  • Hybrid

Experience Level

  • Mid-level

Salary/Compensations

  • €61.200—€100.100 EUR

Benefits

  • Share options programme
  • 30 days of paid annual leave
  • Newest MacBook models
  • Confidential Employee Assistance Program (EAP) for you and your family
  • Home office support: IT workstation equipment and a personal budget of up to €540 for home workplace furniture
  • Lunch benefit per your workday
  • Frequent team-building events
  • A personal monthly budget for shopping on Vinted
  • Access to a discounted gym membership plan
  • Pension Plan with Vinted matching 150% of your chosen contribution
  • Supplemental Private Health Insurance
  • Life and Disability insurance
  • A subsidised Deutschlandticket for your commute to the office by public transport
  • The opportunity to spend up to 90 days per year - 21 of which can be spent working outside of the EU - on workation
  • A dog-friendly office
  • Individual Learning Budget: Annual learning budget for courses, certifications, workshops and more.
  • Hybrid Work: 2 days in the office recommended but not enforced.

About the Company

  • Vinted's mission is to make second-hand the first choice.
  • The Vinted Group consists of Vinted Marketplace (Europe’s leading platform for second-hand fashion), Vinted Go (enhancing the shipping experience), and Vinted Pay (secure payments).
  • Founded in 2008 in Lithuania, Vinted became Lithuania's first unicorn in 2019.
  • Headquarters remain in Vilnius, with offices across Europe and a team of over 2,000 people.

Equal Opportunity

  • The 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.
  • 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.