Senior Mission Platform Architect: Cloud & Army Systems

LMI; Fort Belvoir (VA); On-site; USD 163,000 - 241,000; Full time

Job summary

LMI in Fort Belvoir, VA is seeking a Principal Solutions Architect to shape the technical direction of a U.S. Army modernization program.

This role connects mission requirements with practical architecture across commercial software, cloud, data, cybersecurity, and user-facing applications. The Architect will own the target architecture, oversee the technical roadmap, and evaluate platforms for Army environments, guiding teams through security and interoperability concerns to deliver

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.

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 Army 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

Solutions architecture

Software architecture

Systems engineering

Technology modernization

Technical writing

Briefing

Decision making

Active Secret clearance

Education

Bachelor’s degree in computer science, engineering, information technology or related field

Equivalent practical experience

Tools

AWS

Palantir Foundry

Army Vantage

Cloud platforms

Job description

LMI in Fort Belvoir, VA is seeking a Principal Solutions Architect to shape the technical direction of a U.S. Army modernization program.

This role connects mission requirements with practical architecture across commercial software, cloud, data, cybersecurity, and user-facing applications. The Architect will own the target architecture, oversee the technical roadmap, and evaluate platforms for Army environments, guiding teams through security and interoperability concerns to deliver