OT Penetration Tester - Wireless (GSM / RF Mesh)

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.

• 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.

• 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.

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