Senior Network & Infrastructure Architect

About Metron Metron is an employee-owned company dedicated to delivering innovative solutions for the most challenging national security problems. For over 40 years, our principled approach to problem-solving has yielded creative solutions at the intersection of advanced mathematics, computer science, physics, and engineering. Our people are leaders in their technical fields and are passionate about solving challenging problems. We look for individuals who share this same passion and can apply their experience in real-world settings.   Job Description:   Our Reston, VA office is looking for a  Senior Network & Infrastructure Architect  to serve as a senior technical authority for enterprise network architecture, disparate secure enclave design, multi-vendor hybrid cloud connectivity, and large-scale infrastructure projects.   This is a senior individual contributor role to provide technical leadership across architecture decisions, design reviews, implementation planning, modernization efforts, escalations, and North America operations support.   The ideal candidate is a  network-first  infrastructure architect with deep enterprise & cloud networking experience, broad infrastructure awareness, and the judgment to translate cybersecurity and program requirements into secure, supportable, and maintainable technical solutions.   This role partners closely with cybersecurity, systems, network, and program engineering teams to ensure infrastructure designs are scalable, resilient, operationally realistic, and aligned with security requirements.   Occasional after-hours/weekend maintenance and emergency response required.   Key Responsibilities:   Enterprise Network Architecture   Lead architecture and design for enterprise LAN, WAN, wireless, data center, and cloud-connected network environments   Define future-state network architecture, modernization roadmaps, and technology standards for enterprise and secure environments   Define network patterns for high availability, segmentation, Zero Trust-aligned access, resiliency, recoverability, and secure operations   Review technical designs to ensure they are supportable, scalable, and aligned with cybersecurity and program requirements   Secure Enclave & Classified Infrastructure   Lead network and infrastructure architecture for classified, secure, encrypted, compliance-bounded, or air-gapped environments   Design secure enclave connectivity patterns, including encrypted links, redundant switching, server connectivity, and storage/network integration   Provide architecture guidance for secure environment buildouts, refreshes, and major changes   Partner with cybersecurity teams to ensure technical designs satisfy security requirements and authorization expectations   Hybrid Cloud & Infrastructure Integration   Architect hybrid connectivity between on-premises environments, secure infrastructure, and major cloud platforms such as AWS and Azure   Guide cloud networking, DNS, routing, traffic management, logging, telemetry, and infrastructure automation patterns   Provide architecture-level input for infrastructure platforms such as HCI, virtualization, Linux infrastructure, backup, storage, and container environments   Support data resiliency, disaster recovery and business continuity design for mission-critical infrastructure   Technical Leadership, Standards & Escalation   Serve as a principal technical authority for complex network, infrastructure, availability, routing, DNS, VPN, and service-impacting issues   Develop network and infrastructure standards, reference designs, implementation plans, diagrams, escalation runbooks, and architecture artifacts   Provide technical backstopping and mentoring for engineers implementing and operating enterprise and secure infrastructure   Coordinate with vendors, carriers, cybersecurity, systems, network, and program teams on major infrastructure initiatives and escalations   Onsite Responsibilities   Senior enterprise network architecture experience across on-premises, data center, colocation, cloud-connected, or secure environments.   Experience supporting secure or isolated environments, including classified, compliance-bounded, encrypted, or air-gapped infrastructure   Ability at hire to satisfy DoD 8140 / DCWF 651 Enterprise IT Architect requirements   Willing and able to work in classified, secure, or compliance-bounded environments   Able to support occasional after-hours and weekend maintenance or emergency response efforts   Able to work on-site in Reston, VA   Eligible to obtain and maintain a U.S. security clearance   Required Qualifications:   10+ years of experience architecting, implementing, or operating enterprise network and infrastructure environments   5+ years of hands-on experience with enterprise networking, including switching, routing, wireless, VPN, DNS, and network security operations   Experience with Cisco enterprise networking platforms including Nexus, Catalyst, Firepower, FMC/FTD/ISE, VxLAN, etc.   Experience designing or supporting secure, classified, regulated, government, defense, or security-controlled infrastructure   Experience with at least one major cloud platform, such as AWS or Azure   Experience with hybrid connectivity, cloud networking, Azure and Route 53 DNS, routing, segmentation, or traffic-management concepts   Experience supporting directory or identity services such as Active Directory, Entra ID, ADFS, SSO, claims, or attribute mapping   Ability at hire to satisfy DoD 8140 / DCWF 651 Enterprise IT Architect requirements, as required by contract or program   Ability to create technical documentation, implementation plans, architecture artifacts, escalation runbooks, and design standards   Ability to coordinate with vendors, carriers, internal engineering teams, cybersecurity teams, and program stakeholders   Prefe