Senior Software Engineer
LMI
Arlington, VA · Posted October 28, 2026
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Where Arlington, VA ranks
Where Arlington, VA placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #1Best cities for education pay after cost of living$124k · of 8
- #2Best all-round cities for AI careers in the Southeast89 / 100 · of 33
- #3Best cities for government pay after cost of living$140k · of 18
- #3Best cities for software and engineering jobs in the Mid-Atlantic456 openings · of 68
- #4Best cities for aerospace and defense pay after cost of living$152k · of 19
- #4Best cities for AI-skill jobs in the Southeast14% · of 87
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
Pay compared with the market
This listing does not state pay. Across 930 open senior software engineer listings that state pay, the middle half runs $182,500 to $222,500 and the median is $204,000.
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How AI is used in this kind of work
Among software developers, AI is already used for some of the tasks. Measured exposure for software developers: 29% (some).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
Overview
LMI is seeking a Senior Software Engineer to build user-facing applications supporting HQDA G-4. This engineer will own application capabilities from user need through production delivery as containerized applications deployed to a Kubernetes cluster.
This is a hands-on role for an engineer who can work across the stack, make architectural decisions, and build software directly with Army users and product teams.
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.
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.
Qualifications
Required Qualifications
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.
Desired Qualifications
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.
The target salary range for this position is $112,000-$190,000.
The salary range displayed represents the typical salary range for this position and is not a guarantee of compensation. Individual salaries are determined by various factors including, but not limited to location, internal equity, business considerations, client contract requirements, and candidate qualifications, such as education, experience, skills, and security clearances.
Applicants must meet eligibility requirements for a U.S. Government security clearance. Only US Citizens are eligible for a security clearance. For this position, LMI will only consider applicants with security clearances or applicants who are eligible for security clearances, due to the nature of the work.
Job Locations US-VA-Arlington