Senior Network Architect, onsite, Tewksbury, MA

RTX•Tewksbury, MA

20h•Onsite

About The Position

The Senior Network Architect will serve as a senior technical leader within the Network Architecture team, responsible for enterprise network architecture, design governance, and standards development across classified environments. This role defines and maintains network architecture principles, ensures alignment with TOGAF and DoDAF frameworks, and guides programs through consistent, scalable, and secure network designs. As a Subject Matter Expert in networking, you will provide advanced architectural guidance and technical leadership to operational and engineering teams, support complex problem resolution, research emerging technologies, and collaborate across organizations to shape the future of classified network solutions. This position will be an onsite role in our Tewksbury, MA location, travel to other US Domestic sites might be required on an infrequent bases.

Requirements

Typically requires a University Degree or equivalent experience and minimum 10 years prior relevant experience, or An Advanced Degree in a related field and minimum 7 years' experience
Experience developing and governing enterprise-scale network architectures.
Experience working with network technologies, including routing, switching, firewalls, WAN, segmentation, zero trust concepts, encryption, and secure communications.
Experience using formal architecture frameworks such as TOGAF, DoDAF, or Zachman.
Active and transferable U.S. government issued Secret DOD security clearance, with the ability to acquire a Top Secret clearance is required, prior to start date.
U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Nice To Haves

TOGAF certification or formal TOGAF training.
Experience supporting classified systems and environments.
Familiarity with RMF / CSRMC, NIST, STIGs, ICD 503, and other DoD security frameworks.
Experience developing enterprise technical standards and governance models.
Strong written, visual, and verbal communication skills (Visio, PowerPoint, architecture artifacts).
Experience mentoring engineers or leading technical communities.
Cisco CCNA and/or CCNP certification.
Experience with Cisco, Palo Alto, or equivalent enterprise networking platforms.

Responsibilities

Lead the design and evolution of enterprise network architectures supporting classified programs.
Define, document, and maintain network architecture principles, standards, and reference architectures.
Apply formal architecture frameworks such as TOGAF and DoDAF to guide solution development and ensure traceability from mission needs to implementation.
Establish and enforce architecture governance, ensuring compliance with standards, security requirements, and best practices.
Develop and maintain architecture artifacts including system views, operational views, and technical standards documentation.
Serve as a technical authority for network-related design decisions.
Provide Tier 3/4 escalation support to operational network teams, resolving complex issues that require deep technical expertise and architectural-level analysis.
Partner with engineering, cybersecurity, systems, and program teams to translate architectural intent into implementable designs.
Participate in and lead architecture reviews, design forums, and technical working groups.
Evaluate emerging technologies and recommend adoption where appropriate.
Provide mentoring and technical leadership to engineers and junior architects.
Support proposal efforts and new program captures with architectural guidance.
Communicate complex technical concepts clearly to both technical and non-technical stakeholders.
Support long-term modernization, standardization, and simplification initiatives for classified network environments.
Communicates with parties within and outside of own function and typically has responsibilities for communicating with parties external to the organization, (e.g., customers, vendors, etc.).
Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date.