Telecom Core Security Engineer

Accenture Portugal; Lisboa; Presencial; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

Accenture Portugal is seeking a Telecom Core Security Engineer to support cybersecurity and transformation initiatives for mobile network operators. The role requires expertise in telecom core architectures, protocols, and 4G/5G security.

You will contribute to security assessments and architecture reviews across complex networks. The candidate will work with security consultants, SOC teams, and client stakeholders to secure modern telecommunications infrastructures and guide modernization

Formación

• 3+ years in telecom core engineering.
• Experience with radio and core networks (2G/3G/4G/5G).
• Knowledge of core protocols and security principles.

Responsabilidades

• Provide technical expertise on mobile core network architectures.
• Support security assessments of telecom networks and services.
• Analyze network designs and identify security risks.
• Assist in troubleshooting mobile network protocols and investigations.
• Participate in 4G/5G transformation and modernization efforts.
• Collaborate with security consultants, SOC teams, and clients.
• Contribute to telecom security architecture reviews and recommendations.

Conocimientos

Mobility willingness

Portuguese/English fluency

Herramientas

SS7

Diameter

GTP

SIP/IMS

5G SBI

Signalling Firewalls

SEPP

Fraud Management

Threat Detection

Lawful Interception

Descripción del empleo

Job Description

We are seeking a Telecom Core Security Engineer to support cybersecurity and transformation initiatives for mobile network operators. The ideal candidate will bring strong expertise in telecom core network architectures, protocols, and operational environments from legacy mobile networks through to 5G Standalone deployments. This role will support cybersecurity engagements focused on securing modern telecommunications infrastructures.

Key Responsibilities

• 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.

Job Qualifications

• 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).