Senior Network Engineer

Operations IEEE 802.1X Communication Authentications Legal Discovery Cisco Switching Threat Modeling Network Switches Network Security Threat Detection Security Controls Project Management Business Valuation Financial Services Technical Standard Network Engineering Operations Security Enterprise Security Performance Testing Behavioral Analytics Full Stack Development Network Infrastructure Network Access Control Business Transformation Border Gateway Protocol Web Application Security Technical Subject Matter Public Key Infrastructure IP Flow Information Export Security Requirements Analysis Open Shortest Path First (OSPF) Troubleshooting (Problem Solving) Virtual Local Area Network (VLAN) Cisco Identity Services Engine (ISE) Remote Authentication Dial In User Service (RADIUS), Seeking an experienced Network Security Engineer to support multiple enterprise security engineering initiatives focused on Network Access Control (NAC), authentication modernization, and secure network access.

The engineer will serve as a technical subject matter expert supporting Cisco Identity Services Engine (ISE), with an emphasis on improving authentication standards across a large enterprise environment. Responsibilities include supporting the migration of network-connected assets from weaker authentication methods toward stronger 802.1X and certificate-based authentication.

Key Responsibilities

Engineer, configure, troubleshoot, and support Cisco ISE infrastructure across distributed enterprise environments.

Support large-scale migration from MAC Authentication Bypass (MAB) and other weaker authentication methods toward stronger 802.1X authentication.

Coordinate certificate provisioning, deployment, renewal, and authentication dependencies with PKI and infrastructure teams.

Support network asset discovery, classification, authentication policy validation, and migration readiness.

Partner with network engineering, operations, security, and application teams to execute engineering initiatives.

Incorporate security requirements, architecture documentation, threat models, and technical standards into solution development.

Perform integration, regression, and performance testing, analyze results, and troubleshoot root causes.

Identify security control gaps and implement remediation plans.

Document deployment procedures, technical dependencies, operational requirements, and implementation results.

Provide technical guidance to project managers and cross-functional stakeholders.

cisco ise, network access control, cisco switches, skyhigh, switches, router, netflow, stealthwatch, ospf, vlan, vrf, wireshark, 5+ years of hands-on enterprise Cisco ISE experience.

Experience designing and troubleshooting distributed Cisco ISE deployments, including PAN, PSN, and MnT nodes.

Strong knowledge of wired/wireless 802.1X, MAB, RADIUS, and network authentication.

Experience with Cisco switching, enterprise network infrastructure, and authentication troubleshooting.

Understanding of certificate-based authentication, PKI integration, and certificate lifecycle management.

Experience supporting enterprise security engineering deployments and complex technical migrations.

Ability to work independently and communicate effectively across technical and non-technical teams.

Experience with Cisco Secure Network Analytics (SNA), NetFlow/IPFIX, behavioral analytics, and network threat visibility, as specified in the official requisition.

Desired Qualifications

Cisco Catalyst, Nexus, and wireless infrastructure.

TCP/IP, BGP, OSPF, VLANs, VRFs, and Wireshark.

Insider threat detection, data exfiltration analysis, and threat hunting.

Skyhigh Secure Web Gateway and proxy policy exposure.

Experience in large, regulated financial services environments., 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.