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Cerebras SystemsCerebras SystemsUnited States

Network Security Engineer

Designs and operates firewall, segmentation, zero-trust, and network detection controls across data center, corporate, and AWS environments. The role requires deep network security expertise, infrastructure-as-code automation with Terraform or Ansible, scripting proficiency, and strong TCP/IP troubleshooting skills.

Salary not listed
On-siteSecurity Engineering

About the role

Responsibilities

  • Design and operate firewall, segmentation, and zero-trust controls across data center, corporate, and cloud (AWS) networks.
  • Build and maintain network security infrastructure as code, including firewall rules, policy automation, and CI/CD-driven deployment.
  • Lead network lifecycle management, including design reviews, configuration baselines, change automation, and ongoing rule hygiene.
  • Build detection capabilities for network-based attacker behaviors and partner with the Detection & Response team on response playbooks.
  • Implement and operate network access controls, including ZTNA, VPN, and remote access patterns.
  • Drive periodic firewall rule reviews, segmentation audits, and remediation campaigns to reduce risk and complexity.
  • Document network security architecture, controls, and operating procedures in clear runbooks.

Requirements

  • Master's degree or higher in computer science.
  • Deep expertise with industry-leading firewalls, including policy design, automation, and operations.
  • Strong proficiency with infrastructure as code, including Terraform and Ansible, and at least one scripting language; Python preferred.
  • Hands-on experience operating network controls in a major cloud environment, preferably AWS, including VPCs, transit gateways, security groups, and cloud-native firewalls.
  • Practical understanding of ZTNA, segmentation, and modern network access patterns.
  • Solid fundamentals in TCP/IP, routing, switching, DNS, and TLS, with the ability to troubleshoot across the stack.
  • Excellent written communication skills and the ability to create clear documentation for engineers and operators.

Benefits

  • Work on a breakthrough AI platform beyond the constraints of GPUs.
  • Opportunities to publish and open-source cutting-edge AI research.
  • Work on one of the fastest AI supercomputers in the world.
  • Job stability with startup vitality.
  • A non-corporate work culture that respects individual beliefs.
  • Continuous learning, growth, and support.

Skills

firewallsTerraformAnsiblePythonAWSamazon vpctransit gatewayssecurity groupsztnavpnTCP/IProutingswitchingDNStls

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