Signaling Security Specialist

Deutsche Telekom; India; Remote; INR 6,299,000 - 9,448,000; Full time

Job summary

Deutsche Telekom IT Solutions seeks a signaling security & fraud specialist for an international team. You will monitor, detect and mitigate attacks in telecom signaling networks, focusing on SS7, Diameter, SIP, GTP and 5G HTTP2 and Roaming services.

Responsibilities include configuring detection filters, analyzing alerts, coordinating with stakeholders, and developing security policies to counter signaling threats.

Qualifications

• Excellent written and spoken English (C1) with German (B2) desirable
• Expertise in telecom signaling protocols (SS7, Diameter, GTP, 5G HTTP2, SIP)
• Knowledge of operational mobile and roaming services
• Experience in anomaly detection and fraud management solutions
• Security expertise in telecommunication networks
• Strong analytical and problem-solving skills
• High attention to detail to identify vulnerabilities and risks
• Ability to work in a high-confidentiality environment
• Willingness to undergo privacy, security and risk training and comply with policies

Responsibilities

• Conception of security and fraud anomaly monitoring
• Detection, analysis and mitigation of attacks
• Conception and implementing countermeasures
• Coordination with stakeholders
• Configuration of new detection filters
• Analysis of alerts
• Discuss findings with stakeholders and implement countermeasures
• Coordinate the evaluation and mitigation process with responsible stakeholders
• Development of security policy focusing on signaling threats
• Evaluation of new telco signaling and signaling-based fraud scenarios

Skills

SS7

SMS

Diameter

SIP

5G HTTP2

GTP

Roaming

Job description

Job Description:

As Hungary's most attractive employer in 2025 (according to Randstad's representative survey), Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group. The company provides a wide portfolio of IT and telecommunications services with more than 5300 employees. We have hundreds of large customers, corporations in Germany and in other European countries.

Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.

Project Description

For an international team, we are looking for a signaling security & fraud specialist with high expertivse in telecommunication protocolls and networks, espacially SS7/SMS, Diameter, SIP and 5G HTTP2, GTP and Roaming technologies and services. The tasks involves:

• conception of security and fraud anomalie monitoring
• detection, analylises and mitigation of attacks
• conception and implementing countermeasures
• coordination with stakeholders

Tasks

• configuration of new detection filters
• analysing of alerts
• discuss findings with stakeholders and implement countermeauseres
• Coordinate the evaluation and mitigation process with the responsible stakeholders
• Development of security policy focusing on signaling threats
• Evaluation of new telco signaling and signaling based fraud scenarios

Qualifications

• Very good written and spoken English (C1), good German(min. B2) skills are desirable
• Expertisce in telecommuination signaling protocols (SS7, Diameter, GTP, 5GHTTP2, SIP)
• Knowledge in operational mobile and roaming services
• Experience in anomaly detection and fraud management solutions
• Security expertise in telecommunication networks
• Strong analytical and problem-solving skills
• High attention to detail to identify potential vulnerabilities and risks
• Ability to work in an environment with high confidentiality and sensitivity
• Willingness to pass selected privacy, security and risk management training and be committed to compliance with content

Additional Information

Advantages

• Experience in telecommunication network security
• Expirience with signaling firewalls, telco protocoll security monitoring systems
• Experience in network/carrier fraud management
• In-depth knowledge of fraud types, methods and techniques

What our team offers to you:

• Supportive colleagues locally and internationally
• Knowledge expansion through trainings, professional certifications