Field Network Engineer - ITS Infras

AHU Technologies•Washington, DC

23d•Hybrid

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 designs, deploys, and operates a secure, highly available ITS network that connects traffic signals, video surveillance systems, and IoT devices across the District of Columbia. The network uses Metro Ethernet 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 both field and datacenter environments, with a focus on uptime, safety, and reliability in mission-critical operations. The position supports DMVPN and secure overlay networking, Metro Ethernet and WAN transport, network engineering and operations, ITS infrastructure, and security and compliance. It includes field installations and cutovers, coordination with service providers, network monitoring and troubleshooting, documentation, and support for security audits and remediation. The role is a contract position in Washington, DC, with flexible work-from-home options. Compensation is $60.00–$65.00 per hour.

Requirements

Bachelor’s degree in Computer Science, Information Technology, Network Engineering, a related field, or equivalent professional experience.
12 years of required experience, as stated in the posting’s overview.
11 years of experience conveying technical and functional concepts for a specific technical specialty.
6 years of experience preparing complex technical documentation.
6 years of experience with ITS, including traffic signal controllers, CCTV/video surveillance transport, and traffic management.
6 years of experience with LTE/5G failover solutions.
6 years of network automation skills using Ansible or Python-based scripting.
5 years of knowledge of IoT security and segmentation best practices.
8 years of knowledge of high-availability network design, redundant architectures, and disaster recovery planning.
6 years of fiber optic network experience, including single-mode fiber design and SFP/SFP+ transceivers.
6 years of prior 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 over Metro Ethernet.
Configure and troubleshoot IPsec VPN profiles, GRE tunnels, NHRP mappings, and tunnel interfaces.
Implement BGP, OSPF, and EIGRP routing 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.
Coordinate Metro Ethernet circuit provisioning, turn-up, and incident resolution with service providers.
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.
Apply and tune QoS policies to prioritize latency-sensitive traffic, including signal control and video.
Troubleshoot network issues from field sites through WAN transport to data centers.
Maintain network 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 and its 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.