Associate / Senior Engineer – Network & Telecom Security Testing

2 weeks ago

Dubai, Dubai, United Arab Emirates techzone technologies llc Full time

We are looking for a Network & Telecom Security Testing Engineer (L2) to support security testing, validation, and risk mitigation across telecom core and enterprise network environments.

The role focuses on telecom signaling security, network security testing, fraud detection, and security assurance, working closely with engineering, operations, and vendors.

Key Responsibilities

  • Plan, execute, and document network and telecom security testing activities
  • Perform security assessments and risk analysis across telecom core, signaling, and enterprise networks
  • Test, validate, and assess security controls including:
  • Firewalls: FortiGate, Palo Alto, Juniper SRX, F5 AFM
  • WAF / IDS / IPS: F5, FortiWeb, FortiGate
  • VPNs: IPSec, SSL VPN
  • DDoS protection: Arbor or equivalent platforms
  • Analyze and mitigate telecom-specific security threats, including:
  • SS7 & Diameter attacks
  • Wangiri, CLI spoofing, robocalls
  • Flash calls and SMS fraud
  • Work with telecom signaling and core protocols:
  • SS7, SIGTRAN, Diameter
  • SIP, RTP, SMPP, GTP
  • Support security validation, acceptance testing, and handover for telecom projects
  • Integrate security platforms with monitoring and logging systems (SIEM / ELK / proxy solutions)
  • Support vendor evaluations, RFP activities, and security inventory management
  • Prepare security reports, KPIs, and audit documentation
  • Collaborate with cross-functional teams to ensure compliance with security frameworks and regulatory requirements
  • Mentor junior engineers (Senior level)

Requirements

  • Bachelor's degree in Engineering, Telecommunications, Cybersecurity, IT, or related field
  • 3+ years of experience in telecom security, network security testing, or security validation
  • Strong exposure to telecom core networks and signaling environments
  • Hands-on experience with security testing, validation, or security assurance
  • Solid understanding of telecom protocols (SS7, Diameter, SIP, SMPP, GTP)
  • Experience with firewalls, WAF, IDS/IPS, VPNs, and DDoS platforms
  • Familiarity with penetration testing or security assessment methodologies
  • Scripting exposure (Python, Bash, Shell) is a plus
  • Strong documentation, reporting, and stakeholder communication skills

Preferred Qualifications

  • Experience working with telecom operators or large-scale service provider networks
  • Hands-on exposure to SS7/Diameter firewalls and signaling security platforms
  • Experience in telecom fraud prevention and roaming security
  • Exposure to compliance audits, security KPIs, and regulatory requirements
  • Ability to guide and mentor junior engineers

Role Level Guidance

  • Associate Engineer: Strong security fundamentals + telecom exposure, limited signaling security experience
  • Senior Engineer: Proven SS7/Diameter security, telecom fraud handling, and security testing ownership

Job Type: Full-time

Pay: AED14, AED16,000.00 per month

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