System Data Analytics Specialist
New
United KingdomContractMiddle
Salary not disclosed
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Job Details
- Languages
- English
- Experience
- 5+ years
- Required Skills
- PythonSQLMachine LearningMicrosoft Power BITableauData visualization
Requirements
- Proven experience working directly with Callsign (configuration, tuning, or analytics).
- 5+ years of experience in fraud prevention, risk analytics, or authentication systems in the banking sector.
- Strong SQL, Python, and data visualization skills (e.g., Power BI, Tableau).
- Familiarity with behavioral biometrics, device fingerprinting, and event-based fraud modeling.
- Excellent analytical mindset and ability to interpret complex data flows.
- Strong communication skills in English.
Responsibilities
- Calibrate and fine-tune the Callsign fraud detection and authentication engine for optimal performance.
- Analyze data models, risk signals, and rule outputs to identify false positives/negatives and optimize model thresholds.
- Work on continuous improvement of Callsign workflows, journeys, and intervention logic.
- Conduct deep analytics on fraud event data, behavioral biometrics, and system logs.
- Build dashboards, performance metrics, and reporting pipelines to monitor Callsign efficacy.
- Configure system integrations between Callsign and core banking systems, APIs, or orchestration layers.
- Manage test environments, perform regression testing, and validate production changes.
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