Senior Network Engineer - Routing & Switching
About The Position
GES is seeking a Senior Network Engineer specializing in routing and switching to engineer, implement, and sustain enterprise network infrastructure across a large, distributed environment. The position has hands-on responsibility for the routed and switched core, including designing and implementing network changes and resolving complex problems escalated to the senior engineering tier. The role supports network engineering efforts such as planning, designing, and evaluating network components; developing routing and switching specifications; assessing needs; recommending technologies; and installing, modifying, testing, and servicing network equipment. The engineer works independently on complex assignments, translates requirements into implementable designs, and serves as an escalation point for routing, switching, transport, and connectivity issues. Work is performed under general direction, with latitude for independent technical judgment. The engineer contributes to significant project milestones and communicates designs, risks, recommendations, and status to engineering leadership, peer teams, and stakeholders. The position requires five days in the office until the employee is acclimated, after which one remote day may be possible. An active DoD Secret clearance is required.
Requirements
- Bachelor's degree and at least 8 years of prior relevant experience, or a master's degree and at least 6 years of experience; specific experience, education, and training may be considered in lieu of a degree.
- Significant hands-on experience engineering, implementing, and troubleshooting enterprise routing and switching infrastructure at scale.
- Strong working knowledge of TCP/IP, subnetting, BGP, OSPF, EIGRP, VLANs, spanning tree, link aggregation, VRFs, multicast, QoS, NAT, and high-availability design.
- Experience with network hardware installation, configuration, software upgrades, and lifecycle replacement.
- Experience developing implementation plans, test procedures, and rollback plans, and executing production changes during maintenance windows.
- Demonstrated troubleshooting ability, including packet capture and protocol analysis, across multi-vendor environments.
- Hands-on experience with one or more of Cisco, Aruba, Palo Alto, Dell, Infoblox, and Brocade.
- Experience documenting network designs and procedures using Visio, PowerPoint, or similar tools.
- Strong written and verbal communication skills.
- Current IAT Level II or higher certification, such as Security+ CE.
- Active DoD Secret clearance.
Nice To Haves
- Cisco Certified Network Professional (CCNP) Enterprise or equivalent certification.
- Experience with enterprise network modernization, migration, or large-scale transformation and integration efforts.
- Experience with software-defined networking, SD-WAN, or SD-Access (Cisco Catalyst Center / DNA Center) environments.
- Experience with network segmentation, access control, and identity-based networking.
- Experience integrating enterprise networking with cloud infrastructure, including hybrid connectivity and secure cloud routing.
- Experience with network automation and scripting using Python, Ansible, or infrastructure-as-code approaches.
- Experience applying DISA STIGs, vulnerability remediation, and configuration hardening to network devices.
- Experience with Jira, Confluence, or similar project and knowledge-management tools.
Responsibilities
- Engineer, configure, and implement enterprise routing and switching infrastructure across core, distribution, access, and WAN edge layers.
- Design and implement routing policies using BGP, OSPF, EIGRP, and static routing, including redistribution, filtering, summarization, path selection, and convergence tuning.
- Engineer Layer 2 infrastructure, including VLAN architecture, spanning-tree design, link aggregation, trunking, and loop prevention.
- Implement and maintain VRFs, MPLS/VPN services, tunneling, multicast, QoS policy, and high-availability designs such as HSRP/VRRP and redundant uplink topologies.
- Develop network architecture specifications, evaluate and recommend technologies, and perform needs assessments.
- Install, modify, configure, test, and service network equipment, including hardware refreshes and software or firmware lifecycle upgrades.
- Baseline and optimize network performance, including latency, throughput, utilization, convergence, and error rates, and remediate identified deficiencies.
- Develop implementation plans, test and validation steps, rollback procedures, and change documentation; execute changes during approved change windows.
- Provide senior-level troubleshooting and escalation support for complex routing, switching, transport, and connectivity issues across multiple layers and vendors.
- Perform packet-level and protocol-level analysis to isolate faults across networks, systems, and application boundaries.
- Support capacity planning, configuration standardization, and compliance with approved device configuration baselines and hardening requirements.
- Partner with architecture, cybersecurity, operations, and project teams to resolve blockers, manage dependencies, and deliver network changes end-to-end.
- Develop and maintain logical and physical network diagrams, routing designs, policy standards, addressing plans, configuration standards and baselines, implementation and rollback plans, port/protocol/service requirements, troubleshooting guides, standard operating procedures, and as-built and operational handoff documentation.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
