Senior Network Engineer - Routing & Switching

The role

Platinum Technologies currently has an opportunity for a Senior Network Engineer specializing in routing and switching to engineer, implement, and sustain enterprise network infrastructure across a large, distributed environment. The role carries hands-on responsibility for the routed and switched core — designing changes, implementing them cleanly, and resolving the complex problems that reach the senior engineering tier.

This position supports overall network engineering across a broad range of efforts, including planning, designing, and evaluating components of the network. Duties include developing specifications for routing and switching designs, evaluating and recommending technologies to enhance current capabilities, performing needs assessments, and performing installation, modification, testing, and servicing of network equipment.

What you will do

Engineer, configure, and implement enterprise routing and switching infrastructure, including core, distribution, access, and WAN edge layers.
Design and implement routing policy using BGP, OSPF, EIGRP, and static routing, including route 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 specifications for network architecture, evaluate and recommend new technologies to enhance current capabilities, and perform needs assessments.
Perform installation, modification, configuration, testing, and servicing of network equipment, including hardware refresh and software/firmware lifecycle upgrades.
Baseline and optimize network performance — latency, throughput, utilization, convergence, and error rates — and remediate identified deficiencies.
Develop implementation plans, test and validation steps, rollback procedures, and change documentation for network changes, and execute them during approved change windows.
Provide senior-level troubleshooting and escalation support for complex routing, switching, transport, and connectivity issues spanning multiple layers and vendors.
Perform packet-level and protocol-level analysis to isolate faults across the network, systems, and application boundary.
Support capacity planning, configuration standardization, and compliance of device configurations against approved 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 engineering and operational documentation, including:
Logical and physical network diagrams
Routing designs, policy standards, and addressing plans
Device configuration standards and baselines
Implementation, test, and rollback plans
Port, protocol, and services requirements
Troubleshooting guides and standard operating procedures
As-built and operational handoff documentation

Required Skills.

Bachelor's degree and 8+ years of prior relevant experience, or Master's degree with 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 changes in production environments during maintenance windows.
Demonstrated troubleshooting ability, including packet capture and protocol analysis, across multi-vendor environments.
Hands-on experience with one or more of the following: Cisco, Aruba, Palo Alto, Dell, Infoblox, and Brocade.
Experience documenting network designs and procedures using tools such as Visio, PowerPoint, or similar.
Strong written and verbal communication skills.
Current IAT Level II or higher certification, such as Security+ CE.
Active DoD Secret clearance.

Senior Network Engineer - Routing & Switching

The role

Senior Network Engineer - Routing & Switching

The role

What you will do

About Platinum Technologies

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