anti-fraud analyst

Sumsub provides AI-powered trust infrastructure for compliance operations, connecting identity and business verification, fraud prevention, transaction monitoring, and risk workflows. Its platform helps teams reduce manual work and enter new markets.

• Explore live data to identify emerging fraud patterns, anomalous activity, and gaps in existing detection logic
• Develop and tune fraud detection approaches using rules, supervised and unsupervised models, anomaly detection, and link-based analysis
• Evaluate fraud signals for accuracy, completeness, and predictive value, and identify improvements
• Analyse client traffic and alert flows, measure false positives and missed fraud, and recommend improvements
• Build and optimise baseline rule sets and proactive alerts for common and emerging fraud scenarios
• Turn analytical findings into product recommendations and support complex, data-intensive client cases when needed

• 4+ Years of experience in anti-fraud, risk analytics, applied data science, or another analytical role involving complex data and anomaly detection
• Strong knowledge of exploratory data analysis and classical machine learning, including supervised and unsupervised approaches
• Practical experience with anomaly detection, clustering, and link-based or graph analysis
• Hands-on experience in fraud prevention or fraud analytics
• Strong Python and SQL skills
• Hands-on experience with ClickHouse, Trino, Superset, dbt, DataHub, or comparable analytics tools
• Ability to identify data-quality issues, bias, leakage, overfitting, and misleading model results when working with raw and imperfect data
• Ability to evaluate detection quality through false positives, false negatives, and other relevant metrics
• Ability to explain complex findings through clear logic, numbers, and concrete examples
• Confident but critical use of AI-assisted analytical tools, including the ability to validate their outputs
• Fluent English

• Flexible working hours; no fixed 9-to-5 schedule, provided work remains productive and aligned with the team
• Birthday holiday, 10 personal days annually, seven sick days without paperwork, and extra time off for Christmas and New Year
• Financial bonuses for marriage and welcoming a new baby
• In-person team offsites a few times a year, with trips fully covered
• Role-specific events are covered, with learning opportunities and personal development plans
• Work equipment and tools are provided