Senior Full Stack Software Engineer - Clearance Required

We're looking for a Senior Full Stack Developer with deep expertise across the frontend (React, TypeScript, CSS, HTML) and backend ( Node.js, Express.js, OpenAPI , relational databases) stack to lead our app team.

You'll set technical direction, mentor engineers, and drive systems design decisions across the platform.

Working closely with product owners, designers, and fellow engineers, you'll iterate quickly on features, improve performance, and build out a secure, scalable platform for real-world military and government users.

This role blends technical leadership, architectural ownership, and hands-on coding, spanning everything from UI workflows to distributed backend services to deployment automation.

This role requires an active Secret security 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 energy 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.

Our team is laser-focused on building a unified, real-time common operating picture fusing asset data, threat information, terrain, routes, and protection effects .

If you’re ready to dive in, take ownership, and ship real value, keep reading.

Lead and mentor a team of software engineers, guiding technical decisions, conducting code reviews, and establishing best practices and documentation.

Drive full-stack systems design decisions involving API architecture, data models, and UI component structure.

Lead an AI-enabled development team, owning the guardrails, validation layers, end-to-end tests, and supporting systems that keep AI-assisted output safe, reliable, and production-grade.