We are seeking an experienced OT Penetration Tester with strong expertise in wireless communication networks, particularly GSM and RF Mesh, within AMI / Smart Grid environments.
The role focuses on evaluating the security, resilience, and performance of wireless infrastructure used in Advanced Metering Infrastructure (AMI) by conducting controlled testing and vulnerability assessments across communication protocols and networks.
Key ResponsibilitiesWireless Network Security Testing- Perform penetration testing and security assessments on RF Mesh and private GSM communication networks used in OT environments.
- Identify vulnerabilities in wireless communication channels, authentication mechanisms, and data transmission processes.
- Conduct black-box testing by sending varied inputs such as meter readings, commands, and alarms to RF mesh and GSM networks.
- Validate system outputs such as acknowledgments, alerts, and error responses.
- Test DLMS/COSEM protocol communication for structured metering data transmission.
- Evaluate communication using Wireless M-Bus for sub-metering and IoT-based devices.
- Simulate environmental disruptions such as:
- Signal jamming
- Node failures
- Network congestion
- Evaluate system recovery mechanisms and data integrity in RF mesh multi-hop networks and GSM infrastructure.
- Assess network performance across different frequency bands (e.g., 902–928 MHz for RF mesh) used in large-scale AMI deployments.
- Evaluate encrypted DLMS communication across RF mesh and GSM networks.
- Test vulnerabilities in authentication, integrity validation, and protocol implementation.
- Validate Wireless M-Bus communication standards, particularly in 868 MHz frequency bands used for low-power metering devices.
- Perform stress testing and load simulations to replicate peak AMI usage scenarios.
- Test network behaviour during simultaneous communication from thousands of smart meters.
- Evaluate latency, throughput, and system scalability in event-driven and scheduled data transmission environments.
RequirementsOT / Industrial Security
- Experience in OT penetration testing within ICS / Smart Grid / AMI environments
- Understanding of SCADA and industrial communication systems
- Hands-on experience with:
- RF Mesh networks
- Private GSM networks
- Wireless communication protocols
Strong knowledge of:
- DLMS/COSEM
- Wireless M-Bus
- AMI communication protocols
- Smart meter communication frameworks
- Wireless network security testing
- Encryption and authentication testing
- Vulnerability assessment
- Network resilience and interference analysis
- Experience in Smart Grid / AMI infrastructure security testing
- Knowledge of IoT and smart metering ecosystems
- Exposure to frequency spectrum regulations and wireless deployment standards
- Experience with industrial penetration testing tools
- Bachelor’s degree in Cybersecurity, Computer Science, Telecommunications, or related field
- 5+ years in Cybersecurity / Penetration Testing
- Hands-on experience with OT / Industrial Network Security
Skills Required
- Experience in OT penetration testing within ICS / Smart Grid / AMI environments
- Understanding of SCADA and industrial communication systems
- Hands-on experience with RF Mesh networks
- Hands-on experience with private GSM networks
- Strong knowledge of DLMS/COSEM
- Strong knowledge of Wireless M-Bus
- 5+ years in Cybersecurity / Penetration Testing
What We Do
Global Software Solutions Group Veracious product line is a series of robust banking platforms that provide core banking, payment systems, custom process automation, and document management solutions for banks and financial institutions in Middle East & Africa. This cutting-edge product line features the Veracious Payments Hub, Digital Banking and the DMS, all built on the Torus Lowcode development platform software. Global Software Solutions Group is a software solutions provider that aims to solve mission-critical problems that financial institutions face today. Our software solutions bring together our Low Code platform, the payments product line and customized service offerings to solve mission-critical statements in core banking, payments, process automation, and document management. The Payments Hub is GSS's flagship product.
