Network Security Engineer (Remote)

The role

This person will build, operate, and secure network infrastructure for data centers, cloud environments, corporate networks, and AI systems. The role involves supporting firewalls, segmentation, routing, switching, and automation.

What you will do

• Operate firewalls, ACLs, segmentation, and network security controls.
• Support data center network deployment, configuration, and maintenance with on-site teams.
• Implement and maintain segmentation, firewall, and ACL policies.
• Manage inbound and outbound network controls including NAT, load balancers, and DNS filtering.
• Implement and operate VPN, ZTNA, NAC, Wi-Fi, and vendor connectivity.
• Perform firewall rule reviews and segmentation audits.
• Automate network and security workflows using Terraform, Ansible, GitOps, and Python.
• Support network telemetry, detection, investigation, and containment.
• Troubleshoot routing, switching, TCP/IP, DNS, and TLS issues.
• Maintain network architecture documentation, procedures, and runbooks.

Required qualifications

• 7+ years of experience in network security, network engineering, cloud security, or infrastructure security.
• Strong hands-on experience with firewalls, ACLs, segmentation, routing, switching, VPNs, and network troubleshooting.
• Experience supporting data center and on-premises network infrastructure.
• Experience with AWS networking, including VPCs, transit gateways, security groups, and load balancers.
• Experience with Palo Alto, Juniper, Cloudflare, or similar platforms.
• Proficiency with Terraform, Ansible, Python, GitOps, or similar automation tools.
• Strong understanding of ZTNA, NAC, egress controls, TCP/IP, DNS, and TLS.
• Strong written communication and documentation skills.
• Ability to operate independently in a remote environment and collaborate across time zones.
• Ability to travel occasionally to Cerebras offices or data centers as business needs require.

Nice to have

• AI, HPC, or large-scale compute environments.
• Data center networking and security.
• AWS network security and segmentation.
• ZTNA and VPN architectures.
• DNS filtering, SWG, proxy, or SASE platforms.
• Vendor and partner connectivity.
• Public exposure and attack surface remediation.
• Network detection and incident response.
• Remote operation of geographically distributed network infrastructure.

About the company

Cerebras Systems builds the world's largest AI chip. The company works with leading model labs, global enterprises, and AI-native startups.