Network Security Engineer

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.

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.

We’re partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That’s the power of true partnership. TEKsystems is an Allegis Group company., Were a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. Were a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. Were strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. Were building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.