# Network Security Engineer

**Company:** [Cerebras Systems](https://hotfix.jobs/companies/cerebras-systems)
**Location:** Unspecified
**Role:** Security Engineering
**Skills:** firewalls, Terraform, Ansible, Python, AWS, amazon vpc, transit gateways, security groups, ztna, vpn, TCP/IP, routing, switching, DNS, tls
**Posted:** 2026-06-23

> 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.

## Job Description

## 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.

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**Apply:** https://hotfix.jobs/jobs/84890cba-b860-4469-8126-db09941fa9e9
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