Mobile Fraud Analyst

Posted 4 Days Ago
Be an Early Applicant
Bucharest, ROU
Hybrid
Mid level
Internet of Things • Software • Cybersecurity
Streamlining global data connectivity
The Role
Analyze mobile and roaming traffic to detect, investigate, and prevent telecom fraud across Voice, SMS, Data, SIM/eSIM, and international services. Investigate incidents, identify root causes, assess financial exposure, maintain fraud detection rules and alerts, coordinate mitigation with cross-functional teams, monitor emerging fraud patterns, and prepare management reports.
Summary Generated by Built In
Description

The Opportunity:

We are looking for an experienced Mobile Fraud Analyst to join our team and take an active role in detecting, investigating, and preventing fraud across our mobile and roaming services.

This position is specifically focused on fraud within the mobile telecommunications industry, including cellular traffic, roaming, Voice, SMS, Data, SIM/eSIM, and international traffic.

Previous hands-on experience with fraud in the mobile/telecommunications industry is mandatory.

What You'll Do:

  • Monitor and analyze mobile traffic to identify suspicious activity, abnormal usage patterns, and potential fraud.
  • Investigate fraud cases across Voice, SMS, Data, Roaming, SIM/eSIM, and international traffic.
  • Identify telecom-specific fraud patterns, including unusual calling behavior, high-volume traffic, suspicious destinations, SIM misuse, traffic pumping, and other fraudulent activities.
  • Analyze CDRs and telecom usage records to identify anomalies and suspicious behavior.
  • Investigate fraud incidents and identify the root cause, affected subscribers, SIMs, devices, networks, and destinations.
  • Assess the financial impact and exposure of fraud incidents.
  • Define, maintain, and continuously improve fraud detection rules, thresholds, alerts, and monitoring mechanisms.
  • Recommend and coordinate preventive actions, including blocking or restricting suspicious subscribers, SIMs, destinations, networks, or traffic patterns.
  • Work closely with Network, Roaming, Operations, Product, Finance, and other relevant teams during fraud investigations.
  • Track fraud trends and proactively identify new risks, vulnerabilities, and fraud patterns.
  • Prepare reports and management-level summaries regarding fraud incidents, trends, financial exposure, and preventive actions.
Requirements

Requirements:

  • 3+ years of experience in Mobile/Telecom Fraud Analysis, Fraud Prevention, or a similar telecom fraud role.
  • Previous fraud-related experience within a Mobile Network Operator (MNO), MVNO, roaming provider, or telecommunications company – mandatory.
  • Strong understanding of mobile telecommunications, cellular traffic, and roaming environments.
  • Experience investigating Voice and SMS fraud.
  • Knowledge of CAMEL, VoLTE, Diameter, OCS, and telecom charging systems.
  • Experience working with CDRs and telecom usage data.
  • Strong SQL and data analysis skills.
  • Ability to analyze large volumes of traffic and identify abnormal patterns and anomalies.
  • Strong analytical, investigative, and problem-solving skills.
  • Ability to independently manage fraud investigations from detection through root-cause analysis and mitigation.
  • High attention to detail, ownership, and ability to respond quickly to critical fraud incidents.
  • Experience working with AI tools (ChatGPT, OpenAI API, Claude, Gemini, etc.).
  • Strong English communication skills.

Nice to Have:

  • Experience with international roaming fraud and wholesale telecom environments.
  • Experience working with TAP files and roaming records.
  • Familiarity with IMSI, ICCID, MSISDN, IMEI, MCC/MNC, VPLMN, and HPLMN.
  • Experience working with Telecom Fraud Management Systems (FMS).
  • Experience with Python, Power BI, or other analytical and automation tools.
  • Experience developing automated fraud detection, monitoring, and alerting mechanisms.
About Webbing

Founded in early 2010, Webbing is a global data MVNO that delivers enterprise grade, global connectivity and IoT services across more than 200 countries and 600+ mobile carriers' networks. Webbing's secured network delivers network protection and web content intelligence.

Enterprise customers can manage, monitor, and optimize data usage in real-time with Webbing's powerful software platform. Gain visibility by application type and have the power to white list applications and limit non-business applications with the click of a button, saving money and improving compliance.

What we offer
  • An exciting and challenging workplace with great skill and knowledge development opportunities.
  • The opportunity to join a team of highly professional specialists in an international environment.
  • The opportunity for professional development within a reputable international innovative and growing company.
  • Meal Vouchers.
  • Medical insurance.

Skills Required

  • 3+ years of experience in mobile or telecommunications fraud analysis, fraud prevention, or a similar telecom fraud role
  • Fraud-related experience within an MNO, MVNO, roaming provider, or telecommunications company
  • Strong understanding of mobile telecommunications, cellular traffic, and roaming environments
  • Experience investigating Voice and SMS fraud
  • Knowledge of CAMEL, VoLTE, Diameter, OCS, and telecom charging systems
  • Experience working with CDRs and telecom usage data
  • Strong SQL and data analysis skills
  • Ability to analyze large volumes of traffic and identify abnormal patterns and anomalies
  • Strong analytical, investigative, and problem-solving skills
  • Ability to independently manage fraud investigations from detection through root-cause analysis and mitigation
  • High attention to detail, ownership, and ability to respond quickly to critical fraud incidents
  • Experience working with AI tools such as ChatGPT, OpenAI API, Claude, or Gemini
  • Strong English communication skills
  • Experience with international roaming fraud and wholesale telecom environments
  • Experience working with TAP files and roaming records
  • Familiarity with IMSI, ICCID, MSISDN, IMEI, MCC/MNC, VPLMN, and HPLMN
  • Experience working with Telecom Fraud Management Systems
  • Experience with Python, Power BI, or other analytical and automation tools
  • Experience developing automated fraud detection, monitoring, and alerting mechanisms
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The Company
HQ: Petah Tikva
163 Employees
Year Founded: 2010

What We Do

Webbing is a global data MVNO that delivers innovative enterprise grade, global connectivity and IoT services. Our secured network of 600+ mobile carriers across more than 200 countries, ensures superior data connectivity between business, people and things wherever the device is located. Since our foundation in 2010, we have been developing revolutionary SIM technology, powerful management platforms and a robust global network. Our leading-edge solutions deliver a streamlined, centralized, and scalable means of deploying and managing organizations' global fleet of devices. Our experts assist in every step of the device on boarding process to ensure you are set up to meet your organization’s connectivity needs. Enterprise customers can manage, monitor, and optimize data usage in real-time with Webbing’s dynamic software platform. Gain visibility by application type and have the power to safe list applications and limit non-business applications with the click of a button, saving money and improving compliance. Our superior technology combined with our solid strategic partnerships provide our customers with the perfect balance of the benefits of a local and roaming carrier. We deliver the reach of a global carrier with the quality of a local one with a single carrier that has flexible offerings, low latency, and sustainability at competitive rates.

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