Network Security Engineer
Job Description
Foster City, CA (onsite) contract role focused on hands-on network security operations and scoped project delivery.
Responsibilities
- Administer next-gen firewall (NGFW) and UTM platforms, including policy changes, rule lifecycle cleanup, software and signature updates, and certificate renewals.
- Run URL filtering and Layer-7 inspection policies, including category tuning and exception handling.
- Perform IDS/IPS tuning with signature management, reduce false positives, and escalate confirmed detections to the Security Operations team.
- Support 802.1X NAC including supplicant and authentication troubleshooting, resolving certificate and policy issues, and onboarding new device types.
- Support remote access VPN activities such as client troubleshooting, access and split-tunnel policy changes, and availability monitoring.
- Manage the ticket queue to meet SLA, providing clear written updates to requesters.
- Maintain runbooks, network diagrams, and configuration documentation.
- Design, pilot, execute phased rollout, and provide handoff documentation for:
- 802.1X expansion to additional sites and/or device classes
- Perform network segmentation and SSL Decryption enforcement work, including policy design and enforcement.
Requirements
- 5+ years of network security engineering supporting production environments.
- 5+ years of IT systems or application engineering and administration.
- Strong working knowledge across all layers of the OSI model.
- Hands-on experience with Layer-7 protection techniques, including application control, TLS inspection, IPS, URL and DNS filtering.
- Direct experience administering enterprise NGFW/UTM platforms (vendors to be named from your environment).
- Experience implementing and supporting 802.1X wired and wireless NAC.
- Experience supporting enterprise remote access VPN.
- Demonstrated ability to operate in a formal change management process.
- Clear written and verbal communication, able to collaborate across Information Security, IT, Product, and Operations.
Technologies
- Next-gen firewall (NGFW), UTM platforms
- URL filtering, Layer-7 inspection
- IDS/IPS, 802.1X, NAC
- Remote access VPN
- TLS inspection, application control
- IPS, DNS filtering
- Python, Ansible, Terraform
Preferred
- Relevant certifications (examples listed: PCNSE, Security+, CISSP).
- IaC, scripting, or automation experience for configuration and reporting (examples listed: Python, Ansible, Terraform).
- Experience in a regulated or safety-critical environment.
Engagement Boundaries
- Contractor does not set security policy or standards (owned by Zoox Information Security).
- Architecture decisions require Zoox review and approval; contractor provides design input and implementation.
- No production changes outside the approved change management window.
- All documentation, configurations, and scripts produced are Zoox work product.
Success Measures
- Ticket SLA attainment and requester satisfaction.
- Change success rate and no change-caused incidents.
- Delivery of project milestones on agreed dates.
- Completeness and accuracy of documentation at handoff.
Work Authorization
- US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other
Role type: hands-on engineering and administration (not an advisory role).
Salary: USD 78 - 78 per hourly