Senior Software Engineer

LMI • Arlington, VA

8d • $112,000 - $190,000

About The Position

LMI is seeking a Senior Software Engineer to build user-facing applications supporting HQDA G-4. The engineer will own application capabilities from understanding user needs through production delivery, including building containerized applications deployed to a Kubernetes cluster. This is a hands-on role involving full-stack software development, architectural decision-making, and direct collaboration with Army users and product teams.

LMI is a digital solutions provider focused on accelerating government impact through innovation and speed. The company develops commercial-grade platforms and mission-ready AI for federal agencies and serves the defense, space, healthcare, and energy sectors. LMI is headquartered in Tysons, Virginia.

The position is located in Arlington, Virginia. The target salary range is $112,000–$190,000; actual compensation depends on factors including location, internal equity, business considerations, client contract requirements, and candidate qualifications. Applicants must be U.S. citizens and must hold or be eligible to obtain a U.S. Government security clearance. An active Secret clearance is listed as a required qualification.

Requirements

• Bachelor’s degree in computer science, software engineering, or a related field, or equivalent practical experience.
• Five or more years of professional software engineering experience.
• Strong proficiency with JavaScript or TypeScript, React, and modern web application development.
• Strong proficiency in at least one backend language or runtime, such as Python, Go, or Node.js, with experience building APIs and data-intensive applications.
• Experience building containerized applications and deploying them to Kubernetes.
• Demonstrated ownership of a significant software capability from architecture through production deployment.
• Experience supporting a Department of War customer.
• Active Secret clearance.
• Applicants must be U.S. citizens and hold or be eligible for a U.S. Government security clearance.

Nice To Haves

• Experience supporting U.S. Army logistics.
• Experience with Helm.
• Experience with enterprise data platforms or Army Vantage.
• Familiarity with Army headquarters acquisition or program management processes.
• Experience with cloud platforms and DevSecOps.
• Demonstrated use of AI development tools as part of a professional software engineering workflow.

Responsibilities

• Own the design and delivery of user-facing applications.
• Build responsive interfaces, backend services, APIs, and data integrations.
• Build and deploy containerized applications using Kubernetes and Helm.
• Work directly with Army users and product designers to understand workflows and refine capabilities.
• Establish sound practices for architecture, testing, code review, security, CI/CD, and production operations.
• Diagnose complex application and integration issues across the stack.
• Mentor engineers and contribute to technical decisions across the broader platform.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior