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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Network Architect / Administrator - **Company:** Leidos, Inc. - **Location:** Washington, DC, United States (Remote available) - **Experience:** Expert - **Salary:** $92,300.0 - $166,850.0 - **Contract:** Permanent contract - **Skills:** Microsoft Access, Microsoft Outlook, Cisco PIX, Cloud Computing, Data Centers, Virtual Private Networks (VPN), Multi-protocol Systems, Network Security, Network Troubleshooting, Network Configuration and Change Management, Network Architecture, Network Planning and Design, Routing, Zero Trust Network Access, Microsoft SharePoint, Wide Area Networks, Identity Services Engine, Enterprise Software Applications, Network Access Control, Load Balancing, Cloud Platform System, Computer Network Technologies, Firewalls (Computer Science), Microsoft Onedrive, Firepower, Cisco, Servicenow - **Published:** September 11, 2026 - **Apply:** https://www.thejobnetwork.com/job/7aef4d93-6bed-4cbb-a1da-752cfa3fd310/senior-network-engineer ## About the Role * Bachelor's degree with 8-12 years of relevant experience or Master's degree with 6-10 years of experience * Strong experience in network architecture design and implementation * Deep expertise in networking technologies (routing, switching, security, firewall, load balancers, VPN, NAC, and data center fabrics) * Experience with enterprise security architecture and Zero Trust frameworks * Experience supporting federal or large enterprise environments * Strong analytical, troubleshooting, and leadership skills * Advanced network troubleshooting skills. * Excellent customer service skills. * Excellent oral and written communication skills. * Strong leadership skills. * Ability to collaborate effectively across multiple teams/functions. * Ability to work independently with a sense of urgency. Clearance Requirements * Must be able to obtain and maintain a Public Trust security clearance. * United States Citizenship is required., * Cisco Certified network Associate * Cisco Certified Network Professional (Enterprise, Security) * Ability to think critically about processes and make recommendations for improvement. * Strong collaboration, prioritization, and adaptability skills. * Ability to effectively communicate with all organizational levels. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares. ## Description Leidos is seeking a highly organized and detail-oriented Senior Network Architect / Administrator to support the HUD IOO O&M program in Washington, DC. This role combines advanced network architecture design with hands-on implementation and operational support. The ideal candidate will provide senior-level leadership in designing, implementing, and optimizing complex enterprise network environments while supporting operations and engineering teams. This position requires a forward-thinking professional who can evaluate emerging technologies and drive architectural improvements in a secure federal environment. At Leidos, we know the most talented and diverse IT and Engineering professionals will always have a multitude of career choices; your time at Leidos will be a wise investment in your career and in yourself. Primary Responsibilities * Lead network architecture implementation across LAN/WAN, data center, and cloud environments * Provide MPLS and SD-WAN network design, support, and technology implementation * Architect and manage data center infrastructure solutions * Design and implement Cisco Application Centric Infrastructure (ACI) * Implement device authentication and network access control strategies using Cisco Identity Services Engine * Architect and manage network security using: + Cisco Firepower Management Center + Cisco 3105 Firewalls (Active/Passive high availability clusters) * Design secure access for enterprise applications, including Cloud and on premise based applications: + Outlook, SharePoint, OneDrive, Teams * Implementation of new network configuration on existing Zero Trust architecture leveraging Zscaler: + Zscaler Internet Access (ZIA) + Zscaler Private Access (ZPA) + Zscaler Digital Experience (ZDX) * Implement and mitigate security controls / finding: + Block malicious IPs and URLs + Mitigate vulnerabilities across network borders * Integrate Zscaler with Cisco edge and border devices * Address ServiceNow incidents, implement change orders * Architect and manage secure VPN solutions (Cisco ASA) for business partners * Provide technical leadership, mentoring, and strategic recommendations ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [Small, Secure, Interconnected: The next Internet Protocol](https://www.wearedevelopers.com/videos/100062-small-secure-interconnected-the-next-internet-protocol) - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) - [A Technical Introduction to Bitcoin's 2nd Layer- The Lightning Network](https://www.wearedevelopers.com/videos/15-a-technical-introduction-to-bitcoin-s-2nd-layer-the-lightning-network) ## Related Articles - [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)