Cyber Security Engineer

We're hiring: Cybersecurity System & Network Engineers

At
GreyMatter engineering
, we strengthen our clients' technical teams on strategic and high-impact projects. We are looking for
System & Network Cybersecurity Engineers
to join our growing team.

Your Role

As a
System & Network Cybersecurity Engineer
, you will work under the responsibility of a Project Manager or Technical Lead and contribute to the design, security, and validation of critical IT and industrial systems.

Your Key Missions

• Design and build secure IT architectures, including virtualized environments.
• Define and implement cyber risk mitigation measures for industrial IT systems to achieve compliance and certification.
• Analyze customer cybersecurity requirements (specifications, requirement lists).
• Ensure and demonstrate compliance of deliverables through testing and validation procedures.
• Write technical documentation: studies, technical diagrams, procedures, compliance matrices.
• Lead technical meetings and collaborate with multidisciplinary teams.
• Provide regular internal reporting.

Technical Stack

• Systems & Networks
  : Windows, Linux, VMware, SQL Server, Switches, Firewalls, VLAN
• Security & Virtualization
  : OS hardening (CIS benchmark), Stormshield, ESXi, Redundant Active Directory, PowerShell, HIPS/EDR, Syslog
• Industrial
  : PLCs, SCADA supervision, industrial networks
• Standards & Frameworks
  : ANSSI, CIS, NIS2, IEC 62443

Profile

• 2+ years of experience
  in systems, networks, and operational cybersecurity
• Strong skills in technical writing and documentation
• Analytical mindset, rigor, and strong teamwork skills
• Eligible for
  French Defense Security Clearance (Secret / Top Secret)

What We Offer

• Participation in
  critical projects
  across cutting-edge industrial sectors
• A stimulating work environment combining
  technical expertise and strategic challenges

Ready to take on the challenge? Join us and contribute to projects that make a difference