Deputy Solution Architect

Overview

Millennium is proud to be part of the Markon enterprise, a network of specialized organizations united in support of critical national security missions. This partnership strengthens our ability to deliver results by expanding our technical depth, operational reach, and access to a broader bench of proven experts, ensuring our customers continue to receive best-in-class cybersecurity support.

Since 2004, Millennium has operated at the forefront of cybersecurity. Our elite team of over 300 professionals brings an unmatched record of performance across Red Team Operations, Defensive Cyber Operations, Software Engineering, and Technical Engineering. As home to the largest contingent of contracted Red Team operators supporting the Department of Defense, Millennium delivers unparalleled threat intelligence and battle-tested expertise to both DoD and federal civilian customers.

Millennium is an equal opportunity employer and does not discriminate or allow discrimination on the basis of race, color, religion, gender, age, national origin, citizenship, disability, veteran status or any other classification protected by federal, state, or local law.

Millennium is seeking a Deputy Solution Architect to work onsite in Stafford, VA. The candidate must have an active TS/SCI Clearance.

A Deputy Solution Architect will assist in bridging requirements with enterprise IT infrastructure by leveraging SAFe expertise and deep knowledge of the Marine Corps Enterprise Network (MCEN) to design a secure, high-cadence  System-of-Systems  architecture.

In this role, the Architect will be responsible for the following:

• Solution Intent & Integration
• Manage Solution Intent:
  Document, maintain, and validate the technical baseline.
• Track Traceability:
  Connect mission capabilities and technical enablers directly to MCEN compliance rules.
• Oversee Integration:
  Guide solution architectures to ensure seamless interoperability across all portfolios.
• Technical Enablement & Planning
• Guide Enablers:
  Identify and design the infrastructure, security, and platforms needed for future capabilities.
• Collaborate Globally:
  Align technical solutions with strategic goals alongside PMs, RTEs, and Enterprise Architects.
• Build Roadmaps:
  Assist in drafting Program Increment (PI) and multi-PI technical roadmaps.
• Refine Backlogs:
  Ensure backlog items meet strict quality definitions before PI Planning ceremonies.
• Architecture Support
• Coordinate Daily:
  Provide day-to-day data preparation and administrative support to the Lead Solution Architect.
• Translate Intent:
  Turn high-level architectural concepts into actionable backlog structures.
• Map Dependencies:
  Support capability decomposition and maintain clear technical runway visibility.

• Candidate must have an active TS/SCI Clearance

• Master's or ABET-accredited Bachelor's degree in a quantitative field such as Engineering, Mathematics, Computer Science, Information Technology, or Information Systems. Master's degrees must be from a regionally accredited institution recognized by one of the six contract-specified accrediting associations.

• 10 years of experience with a Master's or 14 years with a Bachelor's in the research, design, and development of computer/network software or specialized utility programs, including database maintenance as applicable.

• Demonstrated experience applying programming concepts and modern software development methodologies, including Agile, Dev Ops, and Dev Sec Ops , in professional or academic environments.

Certifications & Specialized

Experience:

• 10+ years of progressive experience in IT systems architecture, engineering, and integration, with significant experience supporting USMC, Navy, or DoD enterprise environments.
• Cybersecurity…