Principal Solutions Architect

System One; Fort Belvoir (VA); Hybrid; USD 140,000 - 190,000; Full time

Job summary

System One is seeking a Principal Solutions Architect to shape the technical direction of a Department of Defense modernization program. You will connect mission requirements with practical architecture across commercial software, cloud, data, cybersecurity, and user-facing applications.

The role involves owning technical decisions from strategy through implementation while collaborating with customer leaders and engineering teams in an onsite hybrid setup.

Qualifications

• 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.
• Experience owning architecture for a complex production system or platform.
• Experience working directly with engineering teams and senior customer stakeholders.
• Active Secret clearance.

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.

Skills

SaaS platforms

Cloud platforms

Cybersecurity

Stakeholder briefing

Architectural ownership

Education

Bachelor’s degree in CS/Engineering/IT or related field

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.

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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