Senior Network Engineer

Type of Requisition: Regular Clearance Level Must Currently Possess: None

Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: None

Job Family: IT Infrastructure and Operations Job

Qualifications

• Skills:
• Enterprise Network, Network Engineering, Network Monitoring Certifications: None
• Experience: 10 + years of related experience US Citizenship Required: No Job

Description

We are seeking a Senior Network Engineer to join our enterprise

infrastructure team supporting a large, complex environment spanning cloud and

enterprise network services. This is a hands-on engineering role responsible for

implementing, operating, and continuously improving critical network

infrastructure that supports enterprise applications, services, and users across

hybrid environments. The ideal candidate brings deep experience in enterprise

routing, switching, network security, and core infrastructure services. This

role focuses on implementing and operating existing network architecture while

identifying opportunities to improve performance, reliability, and operational

efficiency across the network environment. You will join a collaborative

engineering team responsible for maintaining large-scale enterprise networking

platforms, including routing, switching, security infrastructure, and

foundational network services used by thousands of users and applications. This

position is expected to be hybrid within the DMV region out of Herndon or Falls

Church Virginia. Remote candidates may be considered if a local candidate is not

identified. MEANINGFUL WORK AND PERSONAL IMPACT Operate and improve enterprise

network infrastructure Install, configure, and support enterprise network

equipment including routers, switches, and core network services Maintain highly

available network infrastructure supporting enterprise and cloud-connected

environments Continuously improve network reliability, performance, and

operational efficiency across large-scale deployments Support routing,

switching, and core network protocols Configure and troubleshoot routing and

switching infrastructure across large enterprise environments Support dynamic

routing protocols such as BGP and OSPF Maintain strong operational knowledge of

network layers (L1/L2/L3) and how they impact service delivery Diagnose complex

network issues across routing, switching, and transport layers Maintain network

security and connectivity Configure and support enterprise firewall platforms,

including access control policies, VPNs, and secure tunnels Maintain secure

network connectivity across internal networks, remote sites, and cloud

environments Ensure network configurations align with organizational security

standards and operational best practices Manage foundational network services

Manage enterprise DNS infrastructure, including record creation, monitoring,

troubleshooting, and lifecycle management Support DNS security and protection

mechanisms Maintain integration between DNS, directory services, and DHCP

systems Troubleshoot complex network problems Provide advanced troubleshooting

and resolution for complex network performance or connectivity issues Utilize

monitoring and diagnostic tools to identify and resolve infrastructure problems

Participate in incident response, root cause analysis, and operational

improvement efforts Support enterprise device and wireless authentication

Troubleshoot wireless authentication and network access for managed devices

Partner with endpoint management teams to support device identity and

authentication workflows Maintain critical network infrastructure services

Manage DNS infrastructure, including record creation, monitoring, and

troubleshooting Implement DNS security and protection capabilities Support DNS

integration with directory services and DHCP systems Collaborate across

engineering teams Partner with cloud, security, and infrastructure teams to

support enterprise networking requirements Contribute to network design

documentation, operational runbooks, and engineering best practices Mentor

junior engineers and support knowledge sharing within the engineering

organization Support operational lifecycle management Maintain network

infrastructure through firmware updates and lifecycle management Ensure network

equipment remains aligned with current security and operational standards

Contribute to change management processes and operational readiness activities

What you'll need to succeed 10+ years of experience supporting enterprise

networking environments Education: High School diploma required Strong hands-on

experience with enterprise routing and switching Deep understanding of

networking protocols such as TCP/IP, DNS, HTTP/HTTPS, and VPN technologies

Experience operating and troubleshooting dynamic routing protocols such as BGP

and OSPF Experience configuring and maintaining enterprise firewall platforms,

VPN connectivity, and network security controls Strong troubleshooting skills

across routing, switching, and network infrastructure layers Experience managing

DNS infrastructure, including monitoring, security, and integration with

enterprise directory services Experience managing DNS infrastructure, including

security, monitoring, and integration with directory services Experience

supporting enterprise wireless and device authentication environment Experience

working within large enterprise or service provider environments Familiarity

with network monitoring and diagnostic tools Ability to collaborate effectively

across infrastructure, cloud, and security engineering teams Preferred but not

required Experience with leading enterprise networking platforms such as

JUNOS-based systems, SD-WAN platforms, Zscaler or next-generation firewall

technologies Experience supporting networking in hybrid cloud environments

Familiarity with network automation, scripting, or infrastructure automation

frameworks Experience contributing to network design documentation and

operational standards Industry certifications in networking, cloud networking,

or security disciplines GDIT IS YOUR PLACE At GDIT, the mission is our purpose,

and our people are at the center of everything we do. ● Growth: AI-powered

career tool that identifies career steps and learning opportunities ● Support:

An internal mobility team focused on helping you achieve your career goals ●

Rewards: Comprehensive benefits and wellness packages, 401K with company match,

and competitive pay and paid time off ● Community: Award-winning culture of

innovation and a military-friendly workplace OWN YOUR OPPORTUNITY Explore an

enterprise IT career at GDIT and you’ll find endless opportunities to grow

alongside colleagues who share your desire to drive operations forward. The

likely salary range for this position is $93,662 - $115,000. This is not,

however, a guarantee of compensation or salary. Rather, salary will be set based

on experience, geographic location and possibly contractual requirements and

could fall outside of this range. Scheduled Weekly Hours: 40 Travel Required:

Less than 10% Telecommuting Options: Remote Work Location: USA VA Falls Church

Additional Work Locations: USA VA Herndon Total Rewards at GDIT: Our benefits

package for all US-based employees includes a variety of medical plan options,

some with Health Savings Accounts, dental plan options, a vision plan, and a

401(k) plan offering the ability to contribute both pre and post-tax dollars up

to the IRS annual limits and receive a company match. To encourage work/life

balance, GDIT offers employees full flex work weeks where possible and a variety

of paid time off plans, including vacation, sick and personal time, holidays,

paid parental, military, bereavement and jury duty leave. To ensure our

employees are able to protect their income, other offerings such as short and

long-term disability benefits, life, accidental death and dismemberment,

personal accident, critical illness and business travel and accident insurance

are provided or available. We regularly review our Total Rewards package to

ensure our offerings are competitive and reflect what our employees have told us

they value most. Our Identity Verification Process: As part of the hiring

process, we will ask you to complete an identity verification process that

leverages advanced biometrics and artificial intelligence to ensure authenticity

and protect against identity fraud. You are expected to be on camera during

virtual interviews. We reserve the right to take your picture to verify your

identity and prevent fraud. By proceeding, you authorize the collection,

processing, and use of your biometric data for identity verification and

security purposes. About Our Work: We are GDIT. A global technology and

professional services company that delivers consulting, technology and mission

services to every major agency across the U.S. government, defense and

intelligence community. Our 26,000 experts extract the power of technology to

create immediate value and deliver solutions at the edge of innovation. We

operate across 50 countries worldwide, offering leading capabilities in digital

modernization, AI/ML, Cloud, Cyber and application development. Together with

our clients, we strive to create a safer, smarter world by harnessing the power

of deep expertise and advanced technology. Join our Talent Community to stay up

to date on our career opportunities and events at gdit.com/tc. Equal Opportunity

Employer / Individuals with Disabilities / Protected Veterans Join our 26,000

everyday heroes. We are GDIT. A global technology and professional services

company that delivers consulting, technology and mission services to every major

agency across the U.S. government, defense and intelligence community. Our

26,000 experts extract the power of technology to create immediate value and

deliver solutions at the edge of innovation. We operate across 30 countries

worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud,

Cyber and application development. Together with our clients, we strive to

create a safer, smarter world by harnessing the power of deep expertise and

advanced technology. For more information about GDIT's Privacy Policy, click

here: Privacy Policy | GDIT