Administer and troubleshoot enterprise network security platforms, including firewalls, URL filtering, IDS/IPS, 802.1X NAC, VPN, and TLS inspection. Handle security tickets, policy changes, certificate renewals, documentation, and scoped segmentation projects. Support formal change management and collaborate across security, IT, product, and operations teams while meeting SLA and project milestones.
About This Opportunity
CTI Staffing is partnering with a leading technology organization to find two Network Security Engineers for their Information Security team, based in Foster City, CA. This is a hybrid, 6-month contract-to-hire with three days a week onsite. The team keeps network security systems running and delivers scoped buildout projects, and these engineers do the hands-on work.
What You'll Do
- Administer next-gen firewall and UTM platforms, including policy changes, rule cleanup, software and signature updates, and certificate renewals
- Operate URL filtering and Layer-7 inspection policies, including category tuning and exception handling
- Tune IDS/IPS signatures, reduce false positives, and escalate confirmed detections to the security operations team
- Support 802.1X network access control, including supplicant, certificate, and policy troubleshooting and onboarding new device types
- Support remote access VPN, including client troubleshooting, access and split-tunnel policy changes, and availability monitoring
- Work the ticket queue to SLA with clear written updates to requesters
- Maintain runbooks, network diagrams, and configuration documentation
- Deliver scoped projects, including an 802.1X expansion and segmentation with SSL decryption enforcement
Requirements
What You Bring
Must-Have:
- 5+ years of network security engineering supporting production environments
- 5+ years of IT systems or application engineering and administration
- Strong working knowledge of all layers of the OSI model
- Hands-on Layer-7 protection experience: application control, TLS inspection, IPS, URL and DNS filtering
- Direct experience administering enterprise NGFW/UTM platforms
- Experience implementing and supporting 802.1X wired and wireless NAC
- Experience with enterprise remote access VPN
- Experience working within a formal change management process, with clear written and verbal communication across security, IT, product, and operations teams
Nice-to-Have:
- Relevant certifications such as PCNSE, Security+, or CISSP
- Scripting or automation experience for configuration and reporting (Python, Ansible, Terraform)
- Experience in a regulated or safety-critical environment
- Experience with network segmentation and SSL decryption enforcement
- Strong runbook and network diagram documentation habits
Technical Environment:
- Enterprise NGFW/UTM platforms, URL filtering, and Layer-7 inspection
- IDS/IPS and TLS/SSL decryption
- 802.1X wired and wireless NAC
- Remote access VPN
- ITSM ticketing and formal change management
What Success Looks Like:
- Tickets closed to SLA, with satisfied requesters
- Changes land cleanly, with no change-caused incidents
- Project milestones hit on agreed dates, with complete documentation at handoff
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