Senior Network Engineer, Network Operations

Job ID: 113963

Location: Washington, District Of Columbia [Hybrid]

Category: Infrastructure

Employment Type: Contract

Date Added: 11/06/2026

Apply Now

Back to Search

Thank you for applying. Someone will be contacting you shortly.

Uploading Resume...

Creating Application...

Finishing up...

Apply Now

Fill out the form below to submit your information for this opportunity. Please upload your resume as a doc, pdf, rtf or txt file. Your information will be processed as soon as possible.

An error has occurred. Please close this dialog and try again.

Please complete the entire form below to apply.

First Name*

Last Name*

Email*

Phone (US Phone Numbers Only)*

City

State of Residence Select a state... Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District Of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming

Click Yes to subscribe to jobs from our Talent Network

Yes

Newsletter Interests

Other PMO/BA Infrastructure App/Dev

Resume Required Required*

(Word, PDF, RTF, TXT)

Please complete the entire form below to apply.

Apply Now

Notice: Job application forms are locked until Analytics cookies are accepted for fraud prevention tracking. Please click the cookie settings banner to unlock.

• Required field.

Role Summary

The Senior Network Engineer provides operational and engineering support for geographically distributed network infrastructure serving critical research and laboratory environments across the United States and Europe. This senior-level role owns day-to-day network operations, complex troubleshooting, implementation, lifecycle management, documentation, and onsite support. The engineer partners with infrastructure, security, facilities, telecommunications, and business teams to maintain reliable LAN, WAN, wireless, cloud, and hybrid network services. Travel of up to 25% may be required for domestic and international site support, deployments, and infrastructure upgrades.

Responsibilities

• Own operational support and technical resolution for network infrastructure across research, laboratory, facility, cloud, and partner environments.
• Serve as the primary engineering escalation point for network issues, escalating architecture, security, policy, and significant-risk decisions when appropriate.
• Troubleshoot Layer 2 and Layer 3 connectivity, routing, switching, wireless, VPN, firewall, ISP, DNS/DHCP, and network performance issues.
• Implement approved network changes in accordance with architecture, engineering standards, designs, and change-management procedures.
• Configure, deploy, maintain, upgrade, and troubleshoot Cisco Catalyst and Cisco Meraki infrastructure, including switches, wireless systems, optics, fiber, and high-speed Ethernet.
• Support WAN, inter-site, hybrid cloud, and facility connectivity, including coordination with carriers, vendors, security teams, facilities, engineering groups, and site personnel.
• Monitor network availability, health, capacity, and performance while leading incident response, service restoration, root-cause analysis, and corrective actions.
• Maintain network diagrams, configurations, IP addressing records, circuit inventories, equipment documentation, operational runbooks, standard operating procedures, and troubleshooting guides.
• Execute network lifecycle activities, including software and firmware upgrades, hardware replacement, configuration maintenance, technical debt remediation, and equipment refreshes.
• Identify opportunities to automate network operations and improve monitoring, configuration management, validation, documentation, and troubleshooting consistency.

Qualifications

• Advanced experience with Cisco routing and switching and strong knowledge of VLANs, trunking, STP, routing, ACLs, redundancy, and high-availability network design.
• Strong BGP and OSPF implementation and troubleshooting skills, including complex WAN and inter-site connectivity.
• Demonstrated packet-level troubleshooting experience using packet captures, flow data, device telemetry, Wireshark, or comparable tools.
• CCNP Enterprise certification or equivalent demonstrated enterprise networking experience.
• Extensive experience with Cisco Catalyst and Cisco Meraki Dashboard for switching, wireless, monitoring, troubleshooting, and security platforms.
• Working knowledge of Microsoft Azure networking or comparable cloud environments, including IPsec VPNs, BGP, virtual networking, network security controls, and hybrid connectivity; Azure Virtual WAN or similar cloud WAN experience is desirable.
• Enterprise wireless troubleshooting experience, including familiarity with 802.1X, certificate-based authentication, NAC/RADIUS, guest networking, and upstream network dependencies.
• Working knowledge of network segmentation, firewalls, ACLs, VPNs, Zero Trust principles, secure remote access, certificate-based authentication, and enterprise security and change-management requirements.
• Experience with PowerShell, Python, REST APIs, or equivalent network automation technologies; familiarity with structured configuration management and version control is desirable.
• Strong independent problem-solving, communication, organization, and documentation skills, with the ability to manage operational priorities and collaborate across U.S. and Central European time zones.

Publishing Pay Range: $80.00 - $85.00 hourly

This position offers a hybrid schedule, with time split between the office and remote work.

About GDH:

At GDH, we believe in the power of people and the importance of caring. Our culture statement, "We care about people," isn't just a tagline - it's the core of everything we do. GDH is a premier staffing and talent solutions company dedicated to helping businesses find the best talent and assisting job seekers in finding their dream jobs.

Who We Are:

GDH, founded in 2001, has grown into a leader in providing staffing solutions across various industries. We specialize in IT across several sectors, connecting top talent with leading enterprises. As a Best of Staffing firm recognized for excellence in client, employee, talent, and women's services, we pride ourselves on our commitment to quality and service.

GDH Benefits

GDH offers a range of employee benefits that are designed to promote well-being and help maintain a healthy work-life balance. These comprehensive benefits cover various aspects of an employee's life and aim to enhance their overall experience with the company. Our health benefits include three medical insurance options with access to KISx Card, Zero Card, and HealthJoy concierge services. Other plan offerings include dental, vision, life, disability, supplemental insurance, and pet insurance plans. Enjoy additional perks like holiday pay, 401(k) plan, direct deposit, an employee referral program, work-life balance benefits, a Wellbeats membership, a discounted gym membership program, and more! For more detailed information on benefits, please go to GDH's website under the tab for candidates.

GDH provides equal employment opportunities (EEO) to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, gender, sex (including pregnancy), sexual orientation, gender identity, national origin, age, disability, genetic information, marital status, ancestry, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable federal, state, and local laws. Applicants with disabilities who require an accommodation or assistance in applying and/or for interviewing, please contact our HR Department.

Please visit our notice of collection for California applicants.

Apply Now

View All Jobs