Senior Network Engineer

<div class="content-intro"><div> <div> </div> <div>At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology and ingenuity for clients across defense, national security, public safety, civilian, and military health organizations. </div> <div> </div> <div>Join Accenture Federal Services, a technology company within global Accenture. Recognized as a Glassdoor Top 100 Best Place to Work, we offer a collaborative and caring community where you feel like you belong and are empowered to grow, learn and thrive through hands-on experience, certifications, industry training and more. </div> <div> </div> <div>Join us to drive positive, lasting change that moves missions and the government forward!</div> <div> </div> </div></div><p>We are seeking an experienced <strong>Senior Network Engineer</strong> to lead, design, secure, and optimize mission critical network infrastructure in a hybrid cloud/on-premises environment supporting DoW operations. This role requires deep expertise in enterprise networking, advanced security controls, data center architectures, network automation, and compliance-driven environments. You will serve as a technical subject-matter expert, mentor junior engineers, and drive modernization initiatives across a high security, air gapped enterprise. This position is 100% on-site in Tampa, FL and will require up to 25% travel OCONUS.</p> <p><strong>Responsibilities</strong></p> <p>Engineering</p> <ul> <li>Architect, design, and maintain advanced Layer 2/Layer 3 network infrastructures across campus, data center, and hybrid cloud environments. </li> <li>Lead deployment and lifecycle management for Cisco Catalyst 9300/9500 platforms, Cisco Nexus/NX OS switching, and network segmentation strategies. </li> <li>Own routing design, traffic engineering, IP schema development, and network resilience planning. • Lead modernization initiatives, including migration toward data center–optimized or leaf-spine architectures. </li> </ul> <p><strong>Authentication & Access Control </strong></p> <ul> <li>Architect and administer enterprise 802.1X authentication using Cisco ISE. </li> <li>Design and maintain TACACS+, RADIUS, AD/LDAP integrations, and secure access frameworks. </li> <li>Implement dynamic VLAN assignment, machine/user authentication policies, and enterprise access control standards. Infrastructure Integration </li> <li>Lead networking design and integration for VMware ESXi/vCenter environments. </li> <li>Oversee multi-tier connectivity for applications, storage, and virtual infrastructure. </li> <li>Troubleshoot complex service dependencies across network, virtualization, and system layers. </li> </ul> <p><strong>Security, Compliance & Hardening </strong></p> <ul> <li>Ensure network compliance with STIGs, RMF controls, FIPS requirements, and DoD cybersecurity mandates. </li> <li>Enforce advanced security protections including DAI, DHCP snooping, port security, and encrypted management access. </li> <li>Maintain secure boundary architectures and validate controlled ingress/egress paths. Monitoring, Performance & Troubleshooting </li> <li>Integrate network platforms with SIEM and monitoring stacks (Elastic, Zabbix, SolarWinds). </li> <li>Lead advanced troubleshooting using packet captures, traffic analysis, authentication logs