Network Security Engineer (Remote)

cerebras; United States; Remote; USD 140,000 - 200,000; Full time

Job summary

Cerebras is seeking a remote, US-based network security & operations individual contributor who will build, operate, and secure data center, cloud, corporate, and AI compute networks. The role bridges security and network operations with occasional travel to offices or data centers.

Responsibilities include managing firewalls, VPNs, NAC/ZTNA, and making changes via Terraform, Ansible, Python, and policy-as-code tooling. Strong AWS networking experience is required.

Qualifications

• 7+ years in network security, network engineering, cloud security, or infrastructure security.
• Hands-on with firewalls, ACLs, segmentation, routing, switching, VPNs, and troubleshooting.
• Experience supporting data center and on-premises infra with remote hands.
• AWS networking knowledge (VPCs, transit gateways, security groups, load balancers).
• Familiarity with Palo Alto, Juniper, or Cloudflare; automation tooling like Terraform/Ansible.

Responsibilities

• Operate firewalls, ACLs, segmentation, and security controls across multiple environments.
• Remotely support data center network deployment, configuration, troubleshooting, and lifecycle management.
• Manage inbound/outbound controls including NAT, load balancers, DNS filtering, proxies, and egress policies.
• Implement and operate VPN, ZTNA, NAC, Wi-Fi, and partner connectivity.
• Automate network and security workflows using Terraform, Ansible, Python, and policy-as-code tooling.
• Troubleshoot routing, switching, TCP/IP, DNS, TLS, and cloud networking issues; maintain docs and runbooks.

Skills

7+ years exp

Firewall, ACLs, segmentation

VPNs & troubleshooting

AWS networking (VPCs, TGW)

TCP/IP, DNS, TLS troubleshooting

Tools

Terraform

Ansible

Python

GitOps

Policy-as-code

Job description

Role overview

Build, operate, and secure network infrastructure supporting data centers, cloud environments, corporate networks, and AI compute systems. This is a remote, U.S.-based individual contributor role bridging network security and network operations, with occasional travel to offices or data center sites.

Responsibilities

• Operate firewalls, ACLs, segmentation, and security controls across data center, corporate, and AWS environments.
• Remotely support data center network deployment, configuration, troubleshooting, and lifecycle management.
• Manage inbound and outbound controls including NAT, load balancers, DNS filtering, proxies, and egress policies.
• Implement and operate VPN, ZTNA, NAC, Wi-Fi, and vendor or partner connectivity.
• Automate network and security workflows using Terraform, Ansible, GitOps, Python, and policy-as-code tooling.
• Troubleshoot routing, switching, TCP/IP, DNS, TLS, and cloud networking issues, and maintain documentation, runbooks, and incident coordination across distributed teams.

Requirements

• 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 troubleshooting.
• Experience supporting data center and on-premises infrastructure with remote hands.
• Working knowledge of AWS networking (VPCs, transit gateways, security groups, load balancers).
• Experience with platforms such as Palo Alto, Juniper, or Cloudflare.
• Proficiency with Terraform, Ansible, Python, GitOps, or comparable automation tooling, plus solid understanding of ZTNA, NAC, TCP/IP, DNS, and TLS.

Nice to have

• Background in AI, HPC, or large-scale compute; ZTNA and VPN architecture design; DNS filtering, SWG, proxy, or SASE platforms; or network detection and incident response.