Principal Solutions Architect

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.

• 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.

• 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.

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

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Ref: #851-Rockville-S1