Telecom Security Engineer

London, England, United Kingdom

6/14/2025

We are seeking a Telecom Security Engineer with specialized expertise in 5G network and O-RAN architecture , coupled with a deep understanding of 3GPP standardization and O-RAN specifications. Your primary responsibility will involve implementing security measures within 5G RAN, Open RAN, and Mobile Core that are meticulously aligned with both O-RAN Alliance OpenRAN and 3GPP standards.

Key Responsibilities

• Translate 3GPP and O-RAN specifications into actionable security mechanisms for 5G RAN, O-RAN and 5G core networks
• Implement and configure the security mechanisms (such as encryption, authentication, authorization and access control) to safeguard data transmitted over O-RAN and 5G Core interfaces.
• Develop JOTS Compliant solutions in both O-RAN and 3GPP environments for commercial deployment.
• Conduct penetration testing to identify vulnerabilities on RAN and Core network and recommend remediation measures.
  
  

Requirements

• Minimum 3 years working experience within enterprise networking
• In-Depth technical understanding of 5G architecture and O-RAN network
• Must have a good working and implementing knowledge of the following protocols and technologies IPSec, VPN, TCP/IP, SSL, TLS, IDS / IPS, SSH, SNMP, NTP
• Knowledge of security tools and technologies, including firewalls, IDS/IPS, VPN, and SIEM
• Development and scripting skills required (Python, Powershell scripting or Shell scripts preferred)
• Willingness to learn and adapt to new challenges
• Strong problem-solving skills and excellent communication and collaboration skills.
  
  

Preferred Qualifications

• Relevant certifications such CEH, CISSP, CCNA Security
  
  

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