Role Description Transform technology into opportunity as a Network Engineer Sr Principal at GDIT. Shape what’s next for mission-critical government projects while shaping what’s next for your engineering career. As a Network Engineer Sr Principal, the work you’ll do at GDIT will be impactful to the mission of delivering unified communications. You will play a crucial role in supporting the Federal Aviation Administration. - Analyzes customer requirements and provides technical solutions to complex problems. - Performs maintenance and upgrade of networks including servers, routers, switches, firewalls, remote access systems, and networks. - Maintains network integrity and connectivity while ensuring compliance with policies and maintains system backup and recovery capability. - Coordinates the acquisition of hardware and software as well as subcontractor services as needed. - Creates plans and configures systems for data communication networks. - Designs and builds hardware and software components for computer or telecommunications networks. - Maintains current knowledge of relevant technology as assigned. Qualifications - Education: Bachelor of Science - Experience: 10+ years of related experience Requirements - 9+ years of related experience - US Citizenship Required: No Benefits - 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 - Flexibility: Full-flex work week to own your priorities at work and at home - Community: Award-winning culture of innovation and a military-friendly workplace

• Architect, implement, and optimize enterprise WLAN solutions including site surveys (passive/active/predictive) • Design and support broader network infrastructures (LAN, WAN, SD-WAN) • Diagnose and resolve complex wireless issues including RF interference, roaming problems, coverage gaps, and client connectivity • Lead client-facing engagements, delivering wireless assessments, RF reports, heatmaps, and project presentations • Drive wireless network and security projects in collaboration with global teams and vendors, ensuring successful delivery in mission-critical environments

• Manage, troubleshoot, and optimize a range of network technologies, including Cisco and Nexus switches, Meraki, Palo Alto, and Check Point firewalls, physical and virtual F5 load balancers, and Cisco SAN switches. • Ensure network reliability, security, and performance while contributing to documentation and process improvement initiatives. • Quickly assess and resolve network-related incidents, ensuring minimal disruption to operations. • Conduct root cause analysis (RCA) and implement preventive measures to avoid recurrence. • Perform firmware updates, patches, and upgrades across all network devices. • Monitor network health and performance, identifying and addressing potential issues proactively. • Create and maintain detailed documentation, including Standard Operating Procedures (SOPs) and technical diagrams. • Provide timely updates and clear communication to stakeholders during incidents and maintenance activities. • Collaborate with cross-functional teams to ensure seamless integration of network services. • Participate in an on-call rotation to provide 24/7 network support when needed.

• Generate, review, redline, and revise technical network documents including design documents, systems engineering plans, and program deliverables. • Validate network designs against requirements, standards, and industry best practices. • Conduct rigorous quality assurance reviews for network modernization and refresh projects. • Collaborate with network engineers and architects to ensure documentation reflects actual configurations, baselines, and system behaviors. • Review and validate network configuration templates, implementation plans, and engineering specifications. • Assess and document network infrastructure requirements for new and existing systems in complex DoD environments. • Ensure full compliance with DoD standards, customer-specific documentation regulations, and program requirements. • Maintain configuration management standards and documentation records. • Create and update SOPs, TTPs, and technical knowledge articles. • Prepare technical documentation packages in response to engineering data calls. • Review security-related documentation such as patch plans, IAVA compliance reports, and vulnerability assessments. • Validate accuracy of network diagrams, topology maps, and infrastructure inventories. • Participate in design reviews, offering technical insights to strengthen network architectures. • Support program management teams with documentation for deliverable reviews and customer briefings. • Mentor junior engineers on quality assurance best practices and documentation standards. • Work independently with minimal supervision while maintaining high accountability and attention to detail.