CareerPlan

Mobile Fraud Analyst

Bucharest, RomaniaFull-time2026-10-11 → 2026-10-24

Core

Detect, investigate, and prevent fraud across mobile and roaming services including Voice, SMS, Data, SIM/eSIM, and international traffic.

Role type

Senior IC mobile fraud analyst

Builds

Fraud detection rules, thresholds, alerts, and monitoring mechanisms for a global data MVNO

Domain

Mobile telecommunications / Fraud prevention

Deliverable

production ML models

Required skills

Mobile/telecom fraud analysis, CDR analysis, SQL, telecom charging systems (CAMEL, VoLTE, Diameter, OCS), fraud pattern identification, root-cause analysis, financial impact assessment, AI tool usage

Preferred skills

International roaming fraud, TAP files, IMSI/ICCID/MSISDN/IMEI/MCC/MNC knowledge, Telecom Fraud Management Systems (FMS), Python, Power BI, automated detection mechanisms

Technologies

CAMEL, VoLTE, Diameter, OCS, SQL, Python, Power BI, AI tools (ChatGPT, OpenAI API, Claude, Gemini)

Responsibilities

Monitor and analyze mobile traffic for suspicious activity; Investigate fraud cases across Voice, SMS, Data, Roaming, SIM/eSIM; Analyze CDRs and telecom usage records; Define and maintain fraud detection rules and alerts; Assess financial impact of fraud incidents; Coordinate preventive actions with Network, Roaming, Operations, Product, and Finance teams; Track fraud trends and identify new risks; Prepare management-level reports on fraud incidents and trends

Seniority

Senior, hands-on IC