Enterprise IT Architect w/ active Top Secret clearance

LMI is a new breed of digital solutions provider dedicated to accelerating government impact with innovation and speed. Investing in technology and prototypes ahead of need, LMI brings commercial-grade platforms and mission-ready AI to federal agencies at commercial speed.

Leveraging our mission-ready technology and solutions, proven expertise in federal deployment, and strategic relationships, we enhance outcomes for the government, efficiently and effectively. With a focus on agility and collaboration, LMI serves the defense, space, healthcare, and intel sectors-helping agencies navigate complexity and outpace change. Headquartered in Tysons, Virginia, LMI is committed to delivering impactful results that strengthen missions and drive lasting value.

LMI is seeking a skilled Enterprise IT Architect to support the design and integration of enterprise IT and communications infrastructure across a network of new and existing secure facilities. The Enterprise IT Architect will define the target-state architecture, ensure interoperability across sites, and work with engineering leads and government stakeholders to translate mission requirements into scalable technical solutions. This is an execution-oriented role supporting a fast-paced, milestone-driven prototype effort with near-term deliverable commitments.

Primary duties include:

Lead enumeration and documentation of the technical baseline across multiple geographically dispersed sites, including classified and unclassified network enclaves, transport, security boundaries, and cross-domain transfer capabilities.
• Design and develop target-state network and systems architectures for new secure facilities and an existing operational site, ensuring interoperability and compliance with federal security requirements.
• Develop security authorization roadmaps in accordance with the Risk Management Framework (NIST SP 800-37 / 800-53) in partnership with ISSO and security engineering leads.
• Define architecture for enterprise services, including end-user computing, classified and unclassified VTC/AV integration, and 24x7 network and security operations center (NOC/SOC) monitoring.
• Produce design documentation, technical sections of milestone deliverables, and cost and feasibility inputs supporting a priced follow-on proposal.
• Clearly articulate design decisions, alternatives considered, and associated tradeoffs - cost, schedule, security, and operational impact - to government sponsors and non-technical stakeholders, and support sponsor decision briefings and technical reviews.

Location: This position is based in the Washington, DC metro area, with travel to program locations.

Travel: This position requires approximately 25-50% travel to support activities across multiple program locations.

Availability: Immediate availability strongly preferred; unclassified planning work may begin while program access nominations are processed.