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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Security Engineer - **Company:** TEKSYSTEMS INC. - **Location:** Foster City, CA, United States (Remote available) - **Experience:** Expert - **Salary:** $156,000.0 - $197,600.0 - **Contract:** Temporary contract - **Skills:** IEEE 802.1X, Access Network, Amazon Web Services, Application Layers, User Authentication, Cloud Computing, Cloud Computing Security, Complex Networks, CompTIA Security+, Cyber Security, Computer Networks, Domain Name System (DNS), Intrusion Detection Systems, Virtual Private Networks (VPN), OSI Models, Python (Programming Language), Network Security, Network Diagrams, Network Monitoring, Network Segmentation, Open Systems Interconnection (OSI), Remote Access Technology, Ansible, Wireless Networks, Scripting, Transport Layer Security, Network Access Control, Firewalls (Computer Science), Web Filtering, Infrastructure Automation Frameworks, Information Technology, Fortinet, Terraform, Unified Threat Management - **Published:** October 23, 2026 - **Apply:** https://www.careercircle.com/jobs/all/all/usa/ca/foster-city/57cd3e98-04e9-4650-8c80-8a1390edb138 ## About the Role Firewall Fortinet Terraform Operations Leadership Encryption IEEE 802.1X Test Planning Web Filtering Cloud Security Access Network Authentications Problem Solving Access Controls Change Requests Aruba ClearPass Network Security Network Diagrams Complex Networks Change Management CompTIA Security+ Wireless Networks Threat Management Business Valuation Application Layers Exception Handling Lifecycle Management Network Segmentation Remote Access Systems Full Stack Development Network Access Control Service-Level Agreement Business Transformation Verbal Communication Skills Enterprise Network Security Configuration Documentation Open Systems Interconnection Intrusion Prevention Systems Python (Programming Language) Virtual Private Networks (VPN) Transport Layer Security (TLS) Troubleshooting (Problem Solving) Aruba (Network Management Software) At least 5 years, * 5+ years of network security engineering experience supporting production environments. * 5+ years of IT systems or application engineering and administration experience. * Strong working knowledge of all layers of the OSI model. * Hands-on experience with Layer-7 protection techniques, including application control, TLS inspection, intrusion prevention systems, URL filtering, and DNS filtering. * Direct experience administering enterprise next-generation firewall and unified threat management platforms, including vendors such as Palo Alto and Fortinet. * Experience implementing and supporting 802.1X wired and wireless network access control, including platforms such as Aruba ClearPass. * Experience with enterprise remote access VPN solutions. * Demonstrated experience operating within a formal change management process. * Clear written and verbal communication skills, with the ability to work effectively across Information Security, IT, Product, and Operations teams. * Relevant security certifications such as PCNSE, Security+, or CISSP. * Scripting or automation experience for configuration and reporting using tools such as Python, Ansible, or Terraform. * Experience working in a regulated or safety-critical environment. * Experience with cloud and AWS security concepts and tools. Additional Skills and Qualifications * Experience with Palo Alto and Fortinet next-generation firewalls. * Experience with Aruba and ClearPass for network access control. * Familiarity with AWS security services and controls. * Hands-on experience with Security+ certification topics and Terraform-based infrastructure automation. * Ability to document runbooks, network diagrams, and configuration standards in a clear and maintainable way. * Comfort working in hybrid teams and collaborating with multiple technical and non-technical stakeholders. * Strong problem-solving skills and a methodical approach to troubleshooting complex network security issues., Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job-related factors. ## Description This contract Network Security Engineer role focuses on operating and enhancing enterprise network security services in a hybrid environment. You will administer next-generation firewalls, network access control, and remote access VPNs, while contributing to strategic projects such as 802.1X expansion and network segmentation. The position combines day-to-day operational support with scoped project work in a regulated or safety-critical setting., * Administer and maintain next-generation firewall and unified threat management platforms, including policy changes, rule lifecycle management and cleanup, signature and software updates, and license and certificate renewals. * Operate URL filtering and Layer-7 inspection policies, including category tuning and exception handling to ensure appropriate access and protection. * Administer IDS/IPS platforms by tuning signatures, reducing false positives, and escalating confirmed detections to the security operations team. * Support 802.1X network access control on a day-to-day basis, including supplicant and authentication troubleshooting, resolving certificate and policy issues, and onboarding new device types. * Support enterprise remote access VPN services, including client troubleshooting, split-tunnel and access policy changes, and capacity and availability monitoring. * Work assigned tickets in the queue within agreed service-level agreements, providing clear and timely written updates to requesters. * Author and submit change requests with complete test plans and rollback steps, following formal change management processes. * Create and maintain runbooks, network diagrams, and configuration documentation for all supported systems to ensure consistent operations and knowledge sharing. * Participate in an on-call or escalation rotation as agreed, providing support for critical incidents and after-hours issues. * Design, pilot, and execute phased rollout of 802.1X expansion to additional sites and device classes, including creation of handoff documentation. * Contribute to network segmentation and SSL decryption enforcement initiatives, including policy design and enforcement activities. * Deliver scoped project work defined by written statements of work, meeting documented acceptance criteria and target completion dates.