Mid-Level OTIT Network Engineer (Transportation)

The Mid-Level OT/IT Network Engineer is a hands-on owner of STOLs network and connected-vehicle testbed infrastructure designing administering securing documenting and troubleshooting the networks connecting lab systems field sites roadside infrastructure edge platforms and connected-vehicle devices. Youll also carry meaningful responsibility for the networks federal security authorization posture security documentation Authorization to Operate (ATO) and Risk Management Framework (RMF) artifacts Plans of Action and Milestones (POA&Ms) and vulnerability remediation in partnership with the programs cybersecurity and Corporate Information Security (CIS) team.

Youll sit within the labs Operations team and work across a matrix organization partnering with researchers and project engineers to support testing campaigns and demonstrations.

Role Emphasis: This is primarily a network engineering and administration role. As a general guide to how time is expected to break down:

• OT/IT network engineering administration and testbed infrastructure (60%)
• Network security ATO/RMF documentation and vulnerability remediation (20%)
• Connected-vehicle (V2X) testbed operations and experiment support (20%)

Strong hands-on networking is the foundation for this role. Working knowledge of federal ATO/RMF processes is valued; deep V2X/connected-vehicle experience is not required going in and can be grown into.

Why youll want it: hands-on ownership of a one-of-a-kind connected-vehicle research testbed direct contribution to USDOT/FHWA national transportation initiatives and a clear growth path from core networking into V2X and federal security authorization work.

Network Engineering & Administration

• Design configure administer and troubleshoot switches routers firewalls wireless infrastructure VPNs and remote-site connectivity.
• Manage Layer 2/Layer 3 networking including VLANs routing subnetting ACLs NAT segmentation and IP addressing.
• Administer supporting network services including DNS DHCP NTP PTP/IEEE 1588 GPS timing and remote connectivity.
• Monitor network health availability latency and performance; troubleshoot using Wireshark/tcpdump SNMP syslog and packet captures.
• Maintain network configurations backups firmware certificates device inventories IP plans port maps and network diagrams.
• Install and troubleshoot fiber/copper infrastructure and support connectivity to field-deployed RSUs edge nodes traffic systems and remote sites.
• Plan and execute network changes upgrades and equipment replacements using established change-control practices.

Connected-Vehicle Testbed Operations

• Operate and maintain STOLs Smart Garage and connected-vehicle testbeds including RSUs OBUs signal controllers edge platforms and network-connected research equipment.
• Configure and troubleshoot C-V2X PC5/Uu 5G NR Wi-Fi Ethernet fiber and cellular/backhaul connectivity.
• Translate research requirements into network and testbed configurations and maintain environments in known repeatable states.
• Support laboratory experiments field testing demonstrations and troubleshooting across network device timing protocol and application layers.

Network Security ATO & Vulnerability Management

• Maintain the security posture and documentation for the networks ATO and ongoing RMF activities.
• Develop and keep current security/network architecture and boundary diagrams data-flow diagrams inventories and other authorization artifacts.
• Develop maintain and track network-related Plans of Action and Milestones (POA&Ms) coordinating remediation and evidence collection for closure.
• Review vulnerability findings affecting OS network and edge infrastructure; implement or coordinate remediation through patches firmware upgrades configuration changes or compensating controls.
• Implement network security controls including segmentation firewall/ACL policies VPNs secure administrative access and IT/OT boundary protections.
• Partner with cybersecurity ISSO/ISSM and program personnel on assessments continuous monitoring and applicable NIST SP 800-53/800-82 requirements.

Operational Support & Safety Compliance

• Support testing on concurrent R&D projects laboratory demonstrations field deployments and high-visibility stakeholder events.
• Apply appropriate safety practices when working with network equipment RF systems vehicles cabling and roadside infrastructure.
• Uphold the labs safety posture across routine operations testing and special events and partner with facilities on power environmental controls and cable management.

We encourage candidates who meet most but not necessarily all of these to apply. Strong hands-on networking is the foundation for this role.

Education

• Bachelors degree in network engineering Information Technology Electrical/Computer Engineering Computer Science or a related technical field with 48 years of relevant experience OR a technical associates degree with 7 years. Equivalent demonstrated experience may be considered in lieu of a degree.

OT/IT Networking Experience (Primary)

• 4 years of hands-on experience designing configuring administering and troubleshooting OT industrial laboratory/testbed or field-deployed networks.
• Strong knowledge of TCP/IP switching routing VLANs subnetting ACLs NAT VPNs firewalls and network segmentation.
• Knowledge of fiber/copper infrastructure network diagrams IP addressing DNS/DHCP and time synchronization technologies (NTP PTP/IEEE 1588 GPS).
• Comfort administering Linux-based devices and using Linux for troubleshooting and basic scripting.

Network Security & ATO/RMF (Secondary)

• Working knowledge of network security vulnerability remediation and secure network architecture.
• Familiarity with federal ATO/RMF processes NIST SP 800-53/800-82 security plans POA&Ms and maintaining technical authorization documentation.

Professional & Work Requirements

• Strong written and verbal communication skills with the ability to maintain clear accurate technical documentation.
• Strong organization skills with the ability to manage competing operational security and research priorities.
• Hands-on work in laboratory garage vehicle and field environments including lifting up to 50 lbs; occasional off-hours support for testing maintenance or demonstrations.

• CCNA CCNP or equivalent networking experience.
• Security or equivalent cybersecurity knowledge.
• Experience with Cisco Juniper Aruba Fortinet Palo Alto or similar networking platforms.
• Experience with C-V2X PC5/Uu 5G NR SAE J2735/J3161 or connected-vehicle technologies.
• Hands-on experience with Roadside Units (RSU) and Onboard Units (OBUs) from vendors such as Yunex Cohda Wireless Commsignia Kapsch Ettifos etc.
• Familiarity with PKI/SCMS credentialing and OT/ICS security concepts.
• Experience supporting federally funded R&D government laboratories or government contracting.

Salary range: $110000 $130000 per year (commensurate with experience). Eligible for the companys comprehensive benefits including health dental and vision insurance retirement plan and paid time off.

If youre looking for comfort keep scrolling. At Leidos we outthink outbuild and outpace the status quo because the mission demands it. Were not hiring followers. Were recruiting the ones who disrupt provoke and refuse to fail. Step 10 is ancient history. Were already at step 30 and moving faster than anyone else dares.

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job education experience knowledge skills and abilities as well as internal equity alignment with market data applicable bargaining agreement (if any) or other law.