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Principal Solutions Architect with Security Clearance

System One Holdings, LLCFort Belvoir, VA🇺🇸United StatesPosted Oct 1, 2026

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Seniority
Leader
Employment type
Employee
Work mode
On Site
Location
Fort Belvoir, VA, United States
Posted
Yesterday
AWS

Job Description

Job Title: Principal Solutions Architect
Location: Ft. Belvoir, VA
Type: Direct Hire / Salaried
Work Model: Onsite Hybrid Security Clearance: Active Secret clearance Seeking a Principal Solutions Architect to shape the technical direction of a Department of Defense technology modernization program. This role will connect mission requirements with practical architecture across commercial software, cloud, data, cybersecurity, and user-facing applications.
The Principal Solutions Architect will work directly with customer leaders and engineering teams, owning technical decisions from strategy through implementation. Responsibilities

  • Own the target architecture and technical roadmap for an integrated mission platform.
  • Translate mission and business requirements into executable technical approaches.
  • Evaluate commercial platforms and determine how they should integrate with government systems and environments.
  • Lead architecture reviews and resolve cross-cutting technical decisions.
  • Guide engineering teams on scalability, security, interoperability, and sustainment.
  • Develop prototypes or technical validation when needed to reduce delivery risk.
  • Explain complex technical decisions and tradeoffs to senior technical and nontechnical stakeholders. Minimum Qualifications
  • Bachelor’s degree in computer science, engineering, information technology, or a related field, or equivalent practical experience.
  • Ten or more years of experience in solutions architecture, software architecture, systems engineering, or technology modernization.
  • Broad technical experience across SaaS products, cloud platforms, enterprise data, software delivery, and cybersecurity.
  • Demonstrated ownership of architecture for a complex production system or platform.
  • Experience working directly with engineering teams and senior customer stakeholders.
  • Experience supporting a Department of Defense customer.
  • Strong technical writing, briefing, and decision-making skills.
  • Active Secret clearance.

Preferred Qualifications

  • Experience supporting Department of Defense organizations.
  • Familiarity with DoD enterprise technology, cybersecurity, and data requirements.
  • Experience supporting federal acquisition or mission-support organizations.
  • Familiarity with large-scale defense modernization programs.
  • Experience with AWS, Palantir Foundry, government data platforms, or comparable platforms.
  • Relevant cloud, cybersecurity, architecture, or systems-engineering certification.

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