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OT Penetration Tester - Wireless (GSM / RF Mesh)
OT Penetration Tester - Wireless (GSM / RF Mesh)GSSTech Group • Dubai, Dubai, AE
OT Penetration Tester - Wireless (GSM / RF Mesh)

OT Penetration Tester - Wireless (GSM / RF Mesh)

GSSTech Group • Dubai, Dubai, AE
منذ أكثر من 30 يومًا
نوع الوظيفة
  • Quick Apply
الوصف الوظيفي

Role Overview

We are looking for a highly specialised OT Penetration Tester with strong experience in wireless communication networks (GSM and RF Mesh) within AMI / Smart Metering environments.

This role focuses on black-box security testing of OT networks, validating communication flows, resilience, and protocol-level vulnerabilities across large-scale distributed infrastructure.

Key Responsibilities

1. Wireless OT Penetration Testing (Core)

  • Perform black-box penetration testing on RF Mesh and private GSM networks in AMI environments
  • Simulate real-world attack scenarios without access to internal system logic
  • Test communication between smart meters, concentrators, and head-end systems

2. Functional & Protocol Validation

  • Validate input/output behaviour using:
    • Meter readings
    • Commands
    • Alerts / alarms
  • Verify expected responses such as:
    • Data acknowledgements
    • Error handling
  • Work with protocols:
    • DLMS/COSEM
    • Wireless M-Bus

3. Network Resilience & Interference Testing

  • Simulate:
    • Signal jamming
    • Node failure
    • Packet loss scenarios
  • Assess:
    • Network recovery
    • Data integrity
    • Stability of multi-hop RF mesh networks
  • Work across frequency bands like:
    • 902–928 MHz (RF Mesh)
    • GSM spectrum

4. Security & Data Transmission Testing

  • Analyse encrypted communication flows (without decryption)
  • Identify vulnerabilities in:
    • Authentication
    • Data integrity
    • Transmission security
  • Ensure compliance with OT communication standards

5. Performance & Scalability Testing

  • Conduct stress testing for:
    • High-volume meter data transmission
    • Large-scale AMI deployments
  • Evaluate:
    • Latency
    • Throughput
    • Network congestion handling

Mandatory Skills (Non-Negotiable)

  • Strong experience in OT Security / ICS environments
  • Hands-on wireless penetration testing (GSM / RF Mesh)
  • Experience with AMI / Smart Metering systems
  • Knowledge of:
    • DLMS/COSEM protocol
    • Wireless M-Bus
  • Understanding of:
    • RF communication (frequency bands, interference, propagation)
    • Mesh network architecture (multi-hop networks)

Good to Have

  • Experience with SCADA / ICS security testing
  • Knowledge of IoT / embedded device security
  • Familiarity with tools for RF analysis / wireless testing
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OT Penetration Tester - Wireless (GSM / RF Mesh) • Dubai, Dubai, AE

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