Decision Scientist, Account Verification

Posted One Month Ago
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Vilnius, Vilniaus miesto savivaldybė, Vilniaus apskritis, LTU
In-Office
3K-5K Annually
Entry level
Fashion
The Role
The Decision Scientist will use data to improve account verification and security while minimizing member friction. Responsibilities include partnering with product, engineering, and design teams; modeling security-versus-user-experience trade-offs; designing A/B tests; defining KPIs; investigating anomalies; building Looker dashboards; and communicating insights to technical and non-technical stakeholders.
Summary Generated by Built In
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 

As a Decision Scientist at Vinted, your work will have a tangible impact on millions of members, helping build a safe, trustworthy marketplace so people can buy and sell sustainably with confidence.

We are looking for a Decision Scientist to join our Account Verification team within the Security domain. You will join a cross-functional team dedicated to ensuring that accounts are protected from unauthorized access. From multi-factor authentication and biometrics to phone verification and account recovery, our goal is to make security industry-leading yet effortless.

This role is ideal for someone who enjoys problem-solving and is passionate about using data to drive meaningful and fast change. You will act as a strategic partner, leveraging data to challenge assumptions, quantify trade-offs (balancing security protection vs. user friction), and shape our product strategy

In this position, you’ll 
  • Drive Data-Informed Decisions: Partner with product manager, engineers, and designers to identify strategic opportunities, challenge default assumptions, and bring an evidence-based lens to product discovery.
  • Balance Security & Member Friction: Model and analyze the trade-offs between security controls and user experience.
  • Champion Rigorous Experimentation: Define tracking requirements, design A/B tests, and evaluate test results to validate the business impact of new verification methods and friction-reduction initiatives.
  • Own Team Metrics & Root-Cause Analysis: Define, monitor, and iterate on key performance indicators (KPIs) for Account Verification; proactively investigate metric anomalies and uncover root causes.
  • Empower Stakeholders: Build and maintain self-service Looker dashboards that enable stakeholders to independently track feature performance.
  • Make Data Count: Participate actively in Vinted’s broader Data Science & Analytics (DSA) community, promoting analytical best practices, metric rigor, and knowledge-sharing.
About you 
  • Experience in a Decision Science or Data Analytics role.
  • Good analytical thinking and problem-solving skills, with the ability to balance depth of analysis with business impact.
  • Working experience with SQL and Python or R
  • Experience with BI tools (e.g., Looker, Tableau, Power BI) 
  • Knowledge of statistical methods, such as A/B testing, regression analysis, and other inferential techniques.
  • Highly results-oriented and comfortable with iterative processes
  • Strong communicator who can convincingly present results to both technical and non-technical audiences
  • Fluent in English, both written and spoken
  • Advantage: experience working in the Trust & Safety or Fraud-related area.
Work perks 
  • The opportunity to benefit from our share options programme
  • 25 working days of holiday
  • Access to all the tools & tech needed for work
  • Home office support: we provide IT workstation equipment and a personal budget of up to €540 for home workplace furniture
  • Private health insurance
  • Confidential Employee Assistance Program (EAP) for you and your family
  • Frequent team-building events
  • A personal monthly budget for shopping on Vinted
  • 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
  • In Vilnius office: Gym & in-house meals at friendly prices
  • In Kaunas office: a monthly lunch allowance, and a once-a-week provided in-house lunch and breakfast
Working at Vinted 

Individual Learning Budget

We 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 Work 

We’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 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. 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 gross monthly salary range for this position is:
€3.433€4.650 EUR

Skills Required

  • Experience in a Decision Science or Data Analytics role
  • Strong analytical thinking and problem-solving skills
  • Working experience with SQL and Python or R
  • Experience with business intelligence tools such as Looker, Tableau, or Power BI
  • Knowledge of statistical methods, including A/B testing, regression analysis, and inferential techniques
  • Results-oriented and comfortable with iterative processes
  • Strong communication skills for presenting results to technical and non-technical audiences
  • Fluent English, written and spoken
  • Experience in Trust & Safety or fraud-related work

Vinted Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Vinted and has not been reviewed or approved by Vinted.

  • Equity Value & Accessibility Employees can participate in a share options program, and recurring internal secondary‑liquidity events make equity value more tangible.
  • Leave & Time Off Breadth 25 working days of holiday and a workation policy allowing up to 90 days of remote work per year (including a limited allowance outside the EU) broaden time‑away options.
  • Parental & Family Support Parental leave is topped up to full gross salary for 20 weeks for primary caregivers and 10 weeks for secondary caregivers in Lithuania, with flexible leave until the child turns two.

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The Company
HQ: Vilniaus miesto
243 Employees
Year Founded: 2008

What We Do

We’re the world’s biggest preloved fashion marketplace. The brainchild of Milda Mitkutė and Justas Janauskas, Vinted grew from a local website into a mobile-first community of 20 million people in 10 countries which is boasting over 30 million listings in total. Our mission: make second hand the #1 choice worldwide. We do it by shaking up everyday shopping habits and creating new personalized ways of buying, selling, and swapping clothes, accessories, and lifestyle items. We’re always on the lookout for smart people who know exactly how they can contribute to making Vinted better. Join or lead cross-functional teams at a startup where your impact is never limited to your job description. Step out of your comfort zone. Grow with us. And have fun with a team of more than 200 people along the way. You can find all open positions: https://www.vinted.com/jobs If you know you belong here - tell us why! Follow us! https://www.instagram.com/weworkatvinted/

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