Sr. Network Engineer

Prince William County Government; Virginia (MN); Hybrid; USD 91,000 - 137,000; Full time

Benefits offered by this job

Retirement from the Virginia Pension

401a and 457 retirement plans

Paid Annual Leave

Paid Personal Leave

Paid Sick Leave

Paid Holidays

Group Medical and Dental Plans

Group Life Insurance

Employee Assistance Program

Career Development Opportunities

Job summary

Prince William County Government is seeking a Senior Network Engineer to design, operate, and modernize a large enterprise network serving public safety and county services across 100+ locations.

You will lead modernization initiatives, mentor engineers, and drive implementation projects using SDA, Catalyst Center, and enterprise routing. The role requires after-hours support and strong collaboration across departments.

Qualifications

• High school diploma or GED; 7+ years in enterprise network design and support.
• Experience with large-scale enterprise networks and public sector environments.
• Strong knowledge of SDA, Catalyst Center, and network automation.

Responsibilities

• Design, deploy, and maintain SDA fabrics across enterprise locations.
• Engineer and administer Catalyst Center for automation, provisioning, and lifecycle management.
• Configure OSPF, BGP, route redistribution on Cisco/Juniper platforms.
• Administer Juniper routers and WAN connectivity.
• Design and maintain wireless using WLCs and SDA Fabric Wireless.
• Support 802.1X with Cisco ISE; manage Infoblox DNS/DHCP/IPAM.
• Manage dark fiber and Metro-Ethernet WAN links.
• Utilize ThousandEyes, SolarWinds, Riverbed NetIM for monitoring and RCA.
• Troubleshoot L1–L7 with captures and analysis; mentor junior engineers.
• Lead modernization projects with minimal downtime; participate in after-hours maintenance.

Skills

Networking design

Project leadership

Mentoring

Education

High school diploma or GED

Tools

Cisco SDA

Cisco Catalyst Center

Cisco Catalyst switching

Juniper Junos

SolarWinds

ThousandEyes

Riverbed NetIM

Infoblox DNS/DHCP/IPAM

Dark Fiber

Job description

Do you enjoy solving complex networking challenges that directly support public safety, emergency communications, and critical government services? Are you passionate about designing resilient enterprise networks using modern routing, automation, software-defined networking, and wireless technologies?

Prince William County Department of Information Technology is seeking an experienced Senior Network Engineer to help design, operate, and modernize one of Northern Virginia's largest local government enterprise networks. This position supports critical infrastructure serving public safety, courts, libraries, schools, parks, and County government across more than 100 locations.

Our Network Engineering team embraces innovation, continuous learning, and collaboration while supporting mission-critical services that operate around the clock. If you enjoy working with enterprise-scale networking technologies, leading complex projects, and solving challenging technical problems, we encourage you to apply. This structure follows the style used in your recent position profiles.

About This Role

As a Senior Network Engineer, you will serve as one of the County's senior technical resources responsible for designing, implementing, and supporting a large enterprise network that provides connectivity for public safety agencies, County government, and critical infrastructure.

This position plays a key role in the continued modernization of the County network, including Cisco Software Defined Access (SDA), Catalyst Center, enterprise wireless, routing, network security, and data center connectivity. You will lead implementation projects, troubleshoot complex issues, mentor other engineers, and provide technical leadership for network modernization initiatives.

Responsibilities

• Design, deploy, and maintain Cisco Software Defined Access (SDA) fabrics across enterprise locations.
• Engineer and administer Cisco Catalyst Center for network automation, assurance, provisioning, software lifecycle management, and policy-based networking.
• Configure and troubleshoot OSPF, BGP, route redistribution, and enterprise routing across Cisco and Juniper platforms.
• Administer Juniper routers running Junos supporting network and WAN connectivity.
• Design, deploy, and maintain enterprise wireless infrastructure utilizing Cisco 5520 Wireless LAN Controllers, Catalyst 9800 embedded Wireless Controllers, and SDA Fabric Wireless.
• Support IEEE 802.1X network authentication utilizing Cisco Identity Services Engine (ISE).
• Engineer and maintain Infoblox DNS, DHCP, and IP Address Management (IPAM) services.
• Manage a large dark fiber infrastructure and Metro-Ethernet WAN services connecting County facilities and regional data centers.
• Utilize Cisco ThousandEyes, SolarWinds, and Riverbed NetIM to monitor network health, perform root cause analysis, and improve service reliability.
• Perform advanced troubleshooting across Layers 1 through 7 using packet captures, routing analysis, optical diagnostics, and performance monitoring tools.
• Lead network modernization projects, technology refreshes, and infrastructure migrations with minimal impact to County operations.
• Participate in after-hours maintenance windows supporting critical infrastructure upgrades.
• Provide Tier 3/Tier 4 engineering support and mentor junior engineers.

Minimum Requirements

High school diploma or G.E.D. and 7 years of professional experience designing, implementing, and supporting large-scale enterprise network infrastructure.

Preferences

The successful candidate will have experience with:

• 7 years of experience with large-scale network infrastructure deployments and support
• 7 years of experience with OSPF, BGP, route redistribution, and enterprise routing
• 7 years of experience with Cisco Catalyst enterprise switching
• 7 years of experience with Juniper Junos switching
• 5 years of experience with SolarWinds, ThousandEyes, and/or Riverbed NetIM Network Performance Monitoring
• 5 years of experience with Infoblox DNS, DHCP, and IP Address Management (IPAM)
• 5 years of experience with Dark Fiber infrastructure and optical transport
• 3 years of experience with Cisco Software Defined Access (SDA) and Cisco Catalyst Center

Special Requirements

• A background check is required, including a Criminal History Check and a Credit History Check.
• Police background investigation to include fingerprinting

• Must have a valid driver’s license and a clean driving record

Work Schedule

This position is classified as exempt, with the expectation that the candidate will complete duties within the required time frame. The standard workweek is 37.5 hours, Monday - Friday, between 8:00 am and 5:00 pm. After-hours, weekend, or additional hours in a week are occasionally necessary to provide services that cannot be performed during normal business hours. This is a telework-eligible position that may revert to in-office scheduling if business needs change. Self-directed as necessary to accomplish the mission through a combination of in-person, remote, and travel, including occasional evenings and weekends.

Hiring Salary Range

$91,162.50 - $137,172.75 Annually

We also offer great benefits, including:

• Retirement from the Virginia Retirement System (VRS)
• 401a and 457 retirement savings and investment plans
• Paid Annual Leave
• Paid Personal Leave
• Paid Sick Leave
• Paid Holidays
• Optional Group Medical and Dental Health Plans
• Optional Group Life Insurance
• An Employee Assistance Program (EAP)
• Career Development Opportunities

Full-time positions with Prince William County Government qualify for Public Service Loan Forgiveness. Click here for PSLF for additional information.

NOTE: The above position description is intended to represent only the key areas of responsibility; specific position assignments will vary depending on the department's business needs. To view the class description in its entirety, click here.

Prince William County is an Equal Opportunity Employer. In compliance with the Americans with Disabilities Act, the County will provide reasonable accommodations to qualified individuals with disabilities and encourages both prospective and current employees to discuss potential accommodations with the employer.

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