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# Network Security Engineer

- **Company:** Lightning AI
- **Location:** San Francisco, CA, United States
- **Salary:** $180,000.0 - $220,000.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Software System Penetration Testing, Cisco PIX, Cloud Computing Security, Intrusion Detection and Prevention, Intrusion Detection Systems, Virtual Private Networks (VPN), Network Security, Network Segmentation, Security Information and Event Management, Wide Area Networks, AI Infrastructure, In-Plane Switching (IPS), QRadar, Firewalls (Computer Science), Palo Alto Networks, Nessus, Fortinet, Splunk, Qualys, Security Orchestration, Automation & Response, Vulnerability Analysis
- **Published:** July 17, 2026
- **Apply:** https://www.dice.com/job-detail/b59fb0fb-5255-48b7-a2d0-873ed8aaaedf

## About the Role

* Technical Expertise in firewalls (e.g., Palo Alto, Cisco ASA, Fortinet), IDS/IPS, VPNs, SD-WAN, cloud security, and encryption.
 * Proficiency with Security Tools: Experience with SIEM (e.g., Splunk, QRadar), vulnerability scanners (e.g., Nessus, Qualys), and endpoint security solutions.
 * Relevant Certifications, such as CCNP Security, CEH, CISSP, and GIAC Certifications (GSEC, GCIH, GPEN).
 * A Passion for Security: A proactive approach to learning about new security technologies and threats

## Description

We're looking for a Network Security Engineer to design, implement, and maintain secure network infrastructure across Lightning AI's platform. In this role, you'll take ownership of security systems and controls, working closely with infrastructure and engineering teams to ensure the reliability and protection of our production environment, including safeguarding our AI infrastructure against evolving threats.

This role can be based out of one of our office hubs (San Francisco or Seattle), with in-office requirements of at least 2 days per week and occasional team and company offsites. We are not able to offer visa sponsorship for this position at this time.

What You'll Do

 * Network Security Design & Implementation: Architect robust network infrastructures, leveraging firewalls, VPNs, IDS/IPS, and network segmentation to enhance security.
 * Threat Prevention & Risk Mitigation: Conduct comprehensive vulnerability assessments and penetration tests, ensuring robust security policies and access controls.
 * Monitoring & Incident Response: Utilize SIEM tools for proactive threat detection and collaborate with SOC teams for incident response and breach investigation.
 * Compliance & Security Governance: Ensure compliance with industry standards and regulatory requirements, maintaining thorough security documentation.
 * Security Automation & Optimization: Implement and optimize automation tools for threat detection and response, while staying abreast of emerging security technologies.


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