Field Network Engineer - ITS Infras
About The Position
The client is seeking a hands-on Field Network Engineer to serve as a senior technical resource within its Intelligent Transportation Systems (ITS) program. The role is responsible for designing, deploying, and operating a secure, highly available ITS network connecting traffic signals, video surveillance systems, and IoT devices across the District of Columbia. The network uses Metro Ethernet services as its transport underlay and a Cisco DMVPN secure overlay to connect distributed field sites to client headend facilities and data centers. The engineer works in field and datacenter environments, with a focus on uptime, safety, and reliability in mission-critical operations. The position covers secure overlay networking, Metro Ethernet and WAN transport, network engineering and operations, ITS infrastructure support, and security and compliance. It includes deploying and supporting DMVPN, configuring VPNs and routing, coordinating circuit provisioning, installing and cutting over field equipment, maintaining segmentation and QoS, supporting transportation systems and field devices, documenting the network, and assisting with security assessments and remediation. Flexible work-from-home options are available.
Requirements
- Bachelor’s degree in Computer Science, Information Technology, Network Engineering, or a related field, or equivalent professional experience; the posting lists 11 years as required for this skill.
- 12 years of required experience is listed in the job header.
- At least 6 years conveying technical and functional concepts for a specific technical specialty.
- At least 6 years preparing complex technical documentation.
- At least 6 years of experience with ITS, including traffic signal controllers, CCTV/video surveillance transport, and traffic management.
- At least 6 years of experience with LTE/5G failover solutions.
- At least 6 years of network automation experience using Ansible or Python-based scripting.
- At least 5 years of knowledge of IoT security and segmentation best practices.
- At least 8 years of knowledge of high-availability network design, redundant architectures, and disaster recovery planning.
- At least 6 years of fiber-optic network experience, including single-mode fiber design and SFP/SFP+ transceivers.
- At least 6 years of experience working with a state or municipal Department of Transportation.
- Active CCNA certification.
Nice To Haves
- CCIE Enterprise Infrastructure certification.
- Certified Fiber Optic Technician (CFOT) certification or equivalent.
- CompTIA Network+ or Security+ certification.
- ITIL v4 Foundation certification.
Responsibilities
- Deploy and support Cisco DMVPN Phase 2/Phase 3 hub-and-spoke and spoke-to-spoke overlay networks across Metro Ethernet transport.
- Configure and troubleshoot IPsec VPN profiles, GRE tunnels, NHRP mappings, and DMVPN tunnel interfaces.
- Implement BGP, OSPF, and EIGRP over DMVPN tunnels to support automated failover and optimal path selection.
- Design failover and redundancy strategies, including LTE/5G backup paths.
- Monitor tunnel health, latency, and throughput across VPN connections.
- Coordinate with service providers on Metro Ethernet E-Line and E-LAN provisioning, turn-up, and incident resolution.
- Manage dual-WAN redundancy models and carrier handoff configurations at each site.
- Perform field installations and cutovers of routers, switches, cabinets, and handoff equipment.
- Manage VLAN configurations, IP addressing, and Layer 2/Layer 3 connectivity between remote aggregation points and headend data centers.
- Implement and maintain network segmentation using VRFs, VLANs, and firewall policies to isolate ITS traffic domains.
- Apply and tune QoS policies for latency-sensitive traffic such as signal control and video.
- Troubleshoot network issues end-to-end from field sites through WAN transport to data centers.
- Maintain network documentation, including diagrams, IP assignments, equipment inventories, and configuration records.
- Support traffic signal control systems, CCTV/video surveillance platforms, and IoT field devices by ensuring reliable, low-latency transport connectivity.
- Coordinate field cabinet upgrades to accommodate network equipment, including power and environmental requirements.
- Manage migration of remote aggregation points from legacy infrastructure to DMVPN-based transport.
- Monitor network performance, availability, and service-level compliance across ITS transport links.
- Ensure network connections use encrypted communications in accordance with DDOT and District government security policies.
- Manage VPN certificate lifecycles, key rotation, and trust domain configurations.
- Implement IoT security and segmentation best practices for field-deployed devices.
- Support security audits, vulnerability assessments, and remediation efforts on ITS network infrastructure.
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What This Job Offers
Career Level
Senior
