About the Role
Cerebras is seeking a Network Security Engineer to build, operate, and secure the network infrastructure supporting our data centers, cloud environments, corporate network, and AI systems.
This is a remote, U.S.-based individual contributor role working across network security and network operations. You will support firewalls, segmentation, routing and switching, network access, and automation while collaborating with on-site data center and infrastructure teams. Occasional travel to Cerebras offices or data centers may be required.
Responsibilities
- Operate firewalls, ACLs, segmentation, and network security controls across data center, corporate, and AWS environments.
- Remotely support data center network deployment, configuration, troubleshooting, maintenance, and lifecycle management in partnership with on-site teams.
- Implement and maintain segmentation, firewall, and ACL policies across corporate, compute, customer, and infrastructure environments.
- Manage inbound and outbound network controls, including public exposure, NAT, load balancers, DNS filtering, proxies, and egress policies.
- Implement and operate VPN, ZTNA, NAC, Wi-Fi, and vendor or partner connectivity.
- Perform recurring firewall rule reviews, segmentation audits, and remediation of unnecessary network exposure.
- Automate network and security workflows using Terraform, Ansible, GitOps, Python, and policy as code.
- Support network telemetry, detection, investigation, and containment in partnership with Security Operations.
- Troubleshoot routing, switching, TCP/IP, DNS, TLS, and cloud networking issues.
- Maintain network architecture documentation, procedures, and runbooks.
- Coordinate remote changes and incident response across distributed infrastructure and engineering teams.
Skills and 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, including working effectively with remote hands.
- 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.