Own your opportunity to serve as a critical component of our nation’s safety and security. Make an impact by using your expertise to protect our country from threats.

A seasoned network engineer with over 20 hands on years’ experience preferably in an intelligence community environment. The candidate should have experience with CISCO switches, routers and firewalls, dell and other servers, network laptops, network debug and analysis tools such as Wirehsark and Tripwire. The candidate should also have experience with devices such as Palo Alto, Haipe or other security appliances., * Network security hardening experience

• Specific knowledge of CISCO switches, routers and firewalls to include the Cisco 9300 series switches
• Demonstrated ability to design and develop rack configurations drawings and network diagrams
• Expertise and knowledge of switches, routers, firewalls, security appliances and architectures of network as a service
• Network security and network hardening experience in DoW environments
• Support for SSP development
• Network Troubleshooting
• Evaluation of message receiving functions
• Assessment of Acks and Nacks
• Ability to understand specific functions
• Drawing and configuration of racks
• Assess if network is configured correctly
• Review firewall traffic (use of Packet Tools and Tripwire)
• Tools: Wireshark and others
• Ability to determine which side of the network problem is from a connection standpoint
• Network Requirements Evaluation and developing network diagrams in Visio, PowerPoint and Excel
• Physical Network Construction (installation of switches, fiber, cables security devices and more) on SERD for SCS/ESB
• Assistance to tamper and concealment group in assessing needs for design and deployed network
• HAIPE MTU assessment and review
• Fiber installation and removal
• Experience with JIRA, Confluence and similar tools

Candidate must interact well as an individual contributor or member of a focused team., Bring your technology expertise and drive for innovation to GDIT. The Systems Engineer Sr Principal must have:

• Education: HS Diploma
• Experience: 10+ years of related experience
• Technical skills: Strong Network Experience
• Security clearance level: Active TS/SCI w/ Polygraph required
• US citizenship required, Years of Experience

20 + years of related experience

• may vary based on technical training, certification(s), or degree Certification

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.

MD_2026Alumni

IntelligenceEngineered

#praxisjobs, The likely salary range for this position is $164,382 - $201,250. 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.

Praxis Engineering, a GDIT company, provides cutting-edge technology capabilities and unmatched expertise to deliver mission-critical solutions that drive impact and support customer needs., We are GDIT. A global technology and professional services company that delivers technology solutions 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 mission-ready capabilities in AI, cloud, cyber and software development.