Telecom Core Security Engineer

Sobre a vaga

We are seeking a Telecom Core Security Engineer to support cybersecurity and transformation initiatives for mobile network operators. This role will support cybersecurity engagements focused on securing modern telecommunications infrastructures.

O que vais fazer

• Provide technical expertise on mobile core network architectures
• Support security assessments of telecom networks and services
• Analyze network designs and identify security risks affecting telecom infrastructures
• Support troubleshooting and technical investigations involving mobile network protocols
• Participate in transformation and modernization initiatives involving 4G and 5G networks
• Collaborate with security consultants, SOC teams, and client stakeholders
• Contribute to telecom security architecture reviews and recommendations

O que é pedido

• Minimum 3 years of experience in telecom core engineering
• Understanding of telecom architecture on radio (2G, 3G, 4G and 5G) and core (voice, data, IMS, 5G SA). Experience in voice and/or data core networks and communication flows
• Knowledge of telecom signaling and core protocols including: SS7, Diameter, GTP, SIP/IMS, 5G SBI
• Understanding of roaming and interconnect concepts
• Understanding of telecommunications security principles and solutions applied to prevent and detect risks
• Mobility and willingness to travel
• Experience with mobile operators or telecom vendors
• Exposure to telecom security technologies such as: Signalling Firewalls; SEPP; Fraud Management; Telecom Threat Detection & Lawful Interception
• Knowledge of GSMA security standards and security requirements applied to telcos (eg, NIS2, TSA)
• Experience supporting security audits or risk assessments
• Fluent in Portuguese and English (written and spoken)

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