Senior Network Architect, onsite, Northeast US locations

Location: Tewksbury, MA (onsite; multiple Northeast US locales available). U.S. citizenship and an active, transferable U.S. government Secret security clearance are required on day one; ability to obtain Top Secret clearance is also required.

About the Role

The Senior Network Architect serves 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 is an onsite position in Tewksbury, MA with infrequent domestic travel required.

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.
• Obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification (e.g., CompTIA Security+ CE) within 6 months of start date.

Qualifications

Required

• University degree or equivalent experience and minimum 10 years of relevant experience, or an advanced degree in a related field and minimum 7 years of experience.
• Experience developing and governing enterprise-scale network architectures.
• Experience 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 security clearance (required on day one).
• U.S. citizenship (required for security clearance eligibility).

Preferred

• 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 (e.g., 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.

Skills You Will Learn

• Enterprise-scale classified network architecture practices.
• Advanced secure networking solutions and design patterns.
• Cross-functional collaboration with cybersecurity, systems engineering, and infrastructure teams.
• Long-range technical strategy development for classified networks.

Benefits

• Medical, dental, and vision insurance.
• Life insurance, short-term disability, and long-term disability.
• 401(k) match.
• Flexible spending accounts.
• Flexible work schedules.
• Employee assistance program.
• Employee Scholar Program (tuition assistance).
• Parental leave.
• Paid time off and holidays.
• Annual short-term and/or long-term incentive compensation programs (performance-based, not guaranteed).

Specific benefits depend on business unit and collective-bargaining agreement status.

Pay

The salary range for this role is $132,400 – $251,600 USD. The range is a good-faith estimate representative of all experience levels. RTX considers factors such as role, function, responsibilities, work experience, location, education/training, and key skills when extending an offer.

Relocation support is available for eligible applicants.