Firewall Manager - SS7

Key Responsibilities :

- Configure and maintain SMS firewall rules based on parameters such as volume, content, and bad URLs.

- Proactively monitor rule performance, identifying irregularities, issues, and false positives.

- Maintain and update IR21 operators database, including country, operator, HUB, GT, IMSI, and MSISDN lists.

- Collect, manage, and analyze SMS firewall transactional and reference data using specialized tools.

- Handle large and complex datasets to generate scheduled and ad-hoc reports.

- Extract key insights from SMS firewall data to support business decisions.

- Monitor and report daily and weekly SMS firewall traffic KPIs.

- Update and maintain operator databases and numbering plans.

- Detect, analyze, and report messaging fraud, including root cause analysis and solution recommendations.

- Create and adjust SMS firewall rules to detect potential fraud and generate alerts.

- Research and implement new fraud detection methods and system enhancements.

- Collaborate with Technology, Carrier, and other teams to address network traffic and system issues.

Requirements :

Skills & Experience :

- Excellent communication skills in English (verbal and written).

- Strong analytical mindset with attention to detail and a proactive, data-driven approach.

- Advanced Excel skills (Pivot Tables, Lookups essential).

- Telecom experience with basic knowledge of SMS traffic flows and numbering plans.

- Must have Knowledge of SS7 MAP with ability to read and analyze protocol logs.

- Must have Working knowledge of Linux environments.

- Understanding of telecom messaging fraud scenarios.

- Hands-on experience configuring rule-based fraud detection systems