Senior Decision Scientist, Fraud

Your mission

• Own the analytical problems that matter most for Marketplace Integrity: define and drive the strategic fraud and abuse analytics backlog and turn it into recommendations that shape detection rules, policies, and investments.
• Build the measurement frameworks the team relies on: create and evolve metrics, models, and dashboards that make loss, false positives, friction for good users, and prevention outcomes measurable and self-serve.
• Deliver deep-dive modeling that unlocks step-change decisions: quantify the drivers and trade-offs behind fraud losses, abuse patterns, and prevention measures, including the cost of blocking legitimate travelers and suppliers.
• Be the analytical voice of Marketplace Integrity across the company: turn fraud and abuse patterns into insights Product, Payments, Finance, Supply, and Care can act on, and size the business case for prevention versus recovery.
• Champion hypothesis-driven decision-making: raise the bar on rigor, evaluation, and impact measurement so that every rule change, policy shift, and tooling investment is defensible and outcome-driven.

Your toolkit

• 5+ years of relevant experience interpreting data in an analytics or a data science role
• Production-grade SQL and strong working knowledge of Python (e.g., notebooks, modeling, analysis workflows).
• Experience with experimentation (statistics, assumptions, and evaluation).
• Strong statistical background and proficiency with advanced statistical methods (e.g. causal inference methods, difference-in-differences, regression analysis, propensity score matching)
• Experience with data visualization and reporting tools (e.g., Looker, Jupyter Notebooks).
• Strong stakeholder management and the ability to operate with senior leaders in a high-context, ambiguous environment.
• Proven ability to turn messy questions into structured analysis, crisp narratives, and decisions with measurable business impact.
• Strong customer mindset: you understand user behavior and the “why” behind the numbers.
• Excellent communication skills — you can influence without authority and align teams around shared metrics and priorities.

Extras that give you an edge

• Experience in fraud, trust and safety, risk, or marketplace abuse analytics, ideally within a marketplace or payments environment.
• Familiarity with ETL/orchestration tools (e.g., Airflow) and/or big data tooling (e.g., Spark, Hive).
• Experience working in cross-functional mission setups.
• Exposure to LLM APIs (OpenAI, Gemini, Anthropic), especially for operational tooling or workflow augmentation.

How we’ll make your career journey extraordinary

• Annual personal growth budget and mentorship programs for continuous learning and development
• Work from anywhere in the world for 30 days per year
• A hybrid working approach with three days of in office collaboration (Mon, Tue, Thur) and two days of optional at home focus time.
• Opportunities to collaborate and socialize with team members through quarterly team events and yearly company-wide events
• Monthly transportation and fitness budget
• Discounts for you, your friends, and family on GetYourGuide activities
• Language reimbursement program
• Health and wellness benefits

And more…

How to apply

Submit your CV/resume in English using the form below. For tips and insights into our hiring process and culture, check out ‘ how we hire ’ and ‘ life at GetYourGuide ’. If you have any further questions, please don’t hesitate to get in touch at .

We’re an equal opportunities employer

Our commitment is that every qualified person will be evaluated according to their skills regardless of age, gender identity, ethnicity, sexual orientation, disability status, or religion. Please refrain from including your picture and age with your application.

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