Title: Senior Network Engineer - Secret Clearance Required Job Description: Responsibilities for this Position Location: Fairview Park, Falls Church, VA Full Part/Time: Full time Job Req: RQ220557 Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Top Secret Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Job Qualifications: Skills: Information Technology (IT) Infrastructure, Network Engineering, Operations, System Administration, Technical Support Certifications: None Experience: 10 + years of related experience US Citizenship Required: Yes Job Description: NETWORK ENGINEER SENIOR We are GDIT-supporting and securing some of the most complex government, defense, and intelligence projects in the country. We ensure today is safe and tomorrow is smarter, with work that has real impact. GDIT is your place to own your career by embracing autonomy, seizing opportunity, and being trusted to deliver your best. In this role, you will support the Army National Guard (ARNG) in Falls Church, VA as a Network Administrator; a current, active Secret clearance is required. This IT Service Management contract supports the operation, modernization, and evolution of ARNG's global IT services, including networking, compute, storage, infrastructure, applications, hosting, and program management. The GECOS program underpins ARNG's enterprise IT infrastructure, WAN, authentication and directory services, cybersecurity, application hosting, and related services, using the ITIL framework as the basis for its IT Service Management (ITSM) model. HOW A SENIOR NETWORK ADMINISTRATOR WILL MAKE AN IMPACT: - Configure, manage, and maintain physical and virtual infrastructure, including Cisco routers, Layer 3 switches, firewalls, and Palo Alto IDS/IPS. - Perform off-hours maintenance and support 24x7 operations of a large enterprise environment per schedules and best practices. - Implement and maintain DISA STIG baselines and support CCRI inspections and ATO sustainment. - Develop and maintain standard operating procedures and create/defend system change requests. - Develop and maintain proactive capacity planning models to support business decisions. - Support engineering and architecture initiatives, serving as a senior engineer on complex ARNG strategic projects. - Perform architecture and technology gap analyses and recommend improvements to DoWIN-A(NG) and DoWIN-A(NG)-S operations and security. - Analyze customer requirements and deliver technical solutions to complex problems. - Maintain and upgrade networks (servers, routers, switches, firewalls, remote access systems), ensuring integrity, connectivity, backups, and policy compliance. - Coordinate acquisition of hardware, software, and subcontractor services as needed. - Design, plan, and configure data communication networks, including hardware and software components. - Evaluate and integrate new communications technologies to enhance network capabilities; stay current on relevant technology. - Coach and guide junior and less-experienced administrators; may serve as a team or task lead. WHAT YOU'LL NEED TO SUCCEED: Education/Equivalent Training Required: - Bachelor's degree or 10+ years of relevant experience as a Network Administrator / Engineer Years of relevant experience: - Required Experience: 6+ years' experience Cisco and Palo Alto Routing, Switching, IDS/IPS, and Firewall technologies Skills/Additional Requirements: - Required Technical Skills: Advance routing (BGP/OSPF), MPLS, Firewall and IDS/IPS policies - Advanced networking: BGP/OSPF, MPLS, firewall and IDS/IPS policy configuration - Experience securing and hardening devices in accordance with STIGs - Broad understanding of system hardware, software, configurations, and technologies - Strong problem-solving, analytical, and decision-making skills; able to understand requirements and troubleshoot complex issues - Professional, reliable, and punctual; receptive to direction and feedback - Proven customer service skills, including interaction with senior military and government leadership - Effective communicator across the enterprise (teams, management, and vendors); strong briefing and documentation skills - Strong organizational and teamwork skills; experience leading project efforts - Quick learner, self-motivated to study emerging technologies and requirements; stays current with industry practices - Able to work under time constraints and adapt to changing priorities and new projects - Committed to maintaining and pursuing relevant certifications Certification Requirements: - Two certifications - Must Possess the appropriate baseline certification(s) to achieve a minimum of DoW 8570.01-M Information Assurance Technical (IAT) Level II (i.e., CompTIA Security+ CE) in addition to a Computing Environment (CE) certification (e.g., Cisco, Palo Altos) prior to start. When 8140 requirements are implemented on program/contract, employee will need to conform to 8140 certification standards Clearance Requirements: - Must have a minimum of an active Secret clearance at time of interview and candidate must maintain active clearance. Work Location: - Fairview Park, Falls Church, VA - Three (3) days onsite with up to two (2) days telework. Onboarding/transition in period requires on-site support up to 90 days. GECOS work schedules are subject to change on direction by mission requirements from GDIT or USG leadership. Travel: - Less than 10%. 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. #GDITPriority The likely salary range for this position is $123,250 - $166,750. 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: Hybrid Work Location: USA VA Falls Church Additional Work Locations: 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. 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

• Administer, maintain, and support Windows and Linux server infrastructure and enterprise systems. • Manage Active Directory, Group Policy, DNS, DHCP, file services, system access controls, and identity-related services. • Perform system upgrades, patching, configuration changes, lifecycle maintenance, and controlled change activities for servers and core platforms. • Monitor server health, performance, availability, and capacity, respond to alerts, and proactively address issues before service impact occurs. • Administer and support LAN, WAN, wireless, VPN, firewall, switching, and routing infrastructure. • Maintain Azure cloud infrastructure, including Azure virtual machines, networking, storage, identity, and security controls. • Support and maintain Hyper-V virtualized environments and core virtual infrastructure services. • Monitor network, cloud, and virtual infrastructure performance, availability, and security to ensure stable and reliable operations. • Support backup, restore, backup verification, disaster recovery, and business continuity processes for critical systems. • Provide high-level technical escalation support for infrastructure, server, network, virtualization, Linux, and cloud-related incidents. • Work with internal departments and vendors to implement technical solutions, infrastructure improvements, and service enhancements. • Follow change management processes for infrastructure changes, maintenance, upgrades, and planned maintenance activities. • Maintain technical documentation, procedures, configuration records, and diagrams. • Support security hardening, patch compliance, vulnerability remediation, access reviews, compliance activities, and continuous improvement initiatives.

• Support the installation, configuration, and maintenance of LAN infrastructure • Perform basic troubleshooting of network issues • Assist in implementing network changes • Monitor network performance and escalate complex issues • Document configurations, changes, and troubleshooting steps

Role Description We are seeking a skilled Network Engineer to join our team. This full-time position, available remote or in-office, supports internet service providers and broadband clients across the country and is ideal for someone who thrives in a fast-paced consulting environment, enjoys solving complex network challenges, and is passionate about delivering well-designed, reliable network solutions. As a Network Engineer, you will serve as a technical lead and trusted advisor on network design and implementation projects for clients in the service provider space. This role is centered on engineering outcomes such as: - Assessments - Architecture - Deployments - Migrations - Upgrades - Network modernization initiatives across ISP and broadband environments This role is well-suited for a mid-level engineer with strong experience in: - IP routing - Ethernet switching - Broadband access technologies - Service provider networking best practices The successful candidate will be comfortable with: - Leading technical discovery - Building implementation plans and design documentation - Executing deployments and cutovers - Communicating clearly with both technical and non-technical stakeholders - Managing multiple client engagements in a deadline-driven consulting environment Qualifications - Strong knowledge of networking fundamentals including TCP/IP, Ethernet, subnetting, VLANs, DNS, DHCP, routing, switching, and core network security principles. - Demonstrated ability to design, implement, troubleshoot, and document production network environments. - Hands-on experience with routing and switching protocols and technologies such as BGP, OSPF, IS-IS, VxLAN, MPLS, EVPN, QoS, ACLs, VRRP/HSRP, and IPv4/IPv6. - Ability to manage multiple projects and priorities simultaneously in a client-facing MSP, consulting, or professional services environment. - Strong analytical and problem-solving skills with the ability to diagnose complex issues and develop practical, business-aware solutions. - Strong written and verbal communication skills, including the ability to present technical concepts clearly to non-technical stakeholders. - Experience creating network diagrams, implementation plans, configuration standards, and technical documentation suitable for both internal and client use. - Experience working within structured change management, incident management, and project delivery processes. - Ability to work effectively both independently and collaboratively in a team-oriented environment. - Willingness to support after-hours maintenance windows and occasional urgent escalations when required. - Ability to travel occasionally as needed, with no limitations on driving or flying. - Employment is contingent upon successful completion of a background check. - Must be authorized to work in the United States. Requirements - Bachelor's degree in computer information systems, computer science, information technology, engineering, telecommunications, or a related field; equivalent professional experience may also be considered. - 3+ years of experience in network engineering, telecommunications, internet service provider, broadband, MSP, consulting, or related technical roles. - Industry certifications such as CCNA, CCNP, JNCIS, JNCIP, or service provider-focused certifications are preferred. - Hands-on experience with platforms from vendors such as Cisco, Juniper, Arista, Nokia, Ribbon, Ciena, Adtran, Calix, or similar. - Experience with broadband and service provider technologies including GPON, Active Ethernet, OLT platforms, subscriber management concepts, transport networking, and carrier or regional ISP environments. - Experience designing or supporting dual-stack IPv4/IPv6 environments is preferred. - Familiarity with network monitoring, logging, documentation, and ticketing platforms used in engineering and managed services environments. - Experience developing customer-facing design documents, implementation runbooks, migration plans, and post-project handoff documentation. - Exposure to automation, scripting, or infrastructure-as-code tools such as Python, Ansible, or similar is a plus. - Experience supporting network security design considerations such as segmentation, edge filtering, and secure remote access is a plus. Benefits - This position offers a salary range of $85,000 to $100,000 along with a competitive benefits package that includes medical, dental, vision, life and disability insurance, 401(k), and more. - Compensation will be based on factors such as experience, technical skills, certifications, and overall qualifications.