[5910] Network Security Consultant

Start date: Flexible
Location: Remote, Belgium

Skills & Requirements:
• Network Data Analysis: Review and interpret network captures, logs, topology files, and monitoring outputs to identify all IT and OT assets connected to the environment.

• Asset Identification & Classification: Determine asset types, roles, communication patterns, and criticality across servers, endpoints, industrial control systems, sensors, PLCs, and other operational technology.

• Network Segmentation & Perimeter Definition: Define clear logical and physical perimeters of the networks, including VLANs, zones, subnets, gateways, firewalls, and interconnections.

• Communication Mapping: Document communication pathways, protocols in use (IT & OT), trust boundaries, and potential cross domain interactions.

• Risk & Gap Identification: Highlight deviations from expected architecture, unaut


Desirables:

Good experience in Network Architecture, Network Security, and Industrial Network Environments.

• Proven ability to analyze packet captures, flow data, and monitoring outputs using tools such as Wireshark, Zeek, network scanners, or OT specific discovery solutions.

• Good understanding of both IT protocols (TCP/IP, DNS, DHCP, SMB, HTTPS, etc.) and OT/ICS protocols (Modbus, OPC UA, Profinet, EtherNet/IP, etc.).

• Experience working with network segmentation models. • Ability to translate complex technical findings into clear documentation and actionable insights. • Strong communication skills and the ability to work with cross functional teams.

• Experience in Defense sector.

• Certifications such as CCNA,CCNP, CCIE, GICSP, GCIA, or equivalent.

• Experience with asset discovery platforms