LMI is seeking a Full Stacker Developer to join the Army Training Information System Agile Release Train.

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

• Work with team members to design and use existing innovative software programs that improve and simplify the Training Management for the Army.
• Ensure all new software functions smoothly across various programs and platforms, including mobile systems.
• Meet with managers and representatives of Army to discuss software issues and brainstorm methods of solving existing problems.
• Write original code and update existing code, ensuring that all code meets program requirements.
• Perform intensive testing of all new and existing programs to ensure they are free of errors and function as intended.
• Update and debug existing systems to ensure a smooth user experience and a uniform look across a variety of platforms.
• Optimize new and existing programs for mobile use, including smartphones and tablets.
• Keep up to date on the newest technological innovations in the field and be ready to apply relevant innovations to our software systems.

Required Qualifications

• Active Secret clearance required; Top Secret with the ability to obtain SCI access preferred
• Bachelor’s degree in Computer Science or a related technical discipline
• 5+ years of professional experience with each of the following technologies:
  • React
  • TypeScript
  • Java (Spring Boot)
• Strong ability to debug, optimize, and maintain code, as well as automate routine development tasks
• Demonstrated systematic problem-solving skills, strong written and verbal communication, and a proactive, results-driven mindset 

Preferred Qualifications

• Familiarity with React and TypeScript, including functional components, hooks, and basic state management
• Working knowledge of Java and Spring Boot, including building or consuming RESTful APIs
• Exposure to frontend unit testing concepts and tools (e.g., Jest, React Testing Library, or similar)
• Exposure to backend unit testing using JUnit, Mockito, or similar Java testing frameworks
• Basic understanding of RESTful services and web concepts such as HTTP methods and status codes
• Familiarity with Git and version control workflows (pull requests, code reviews)
• Working knowledge of relational databases (PostgreSQL, MySQL, or similar) and basic SQL queries
• Awareness of software development best practices, including testing, logging, and writing maintainable code
• Ability to learn quickly, accept feedback, and collaborate effectively in a team-based Agile environment
• Strong curiosity, problem-solving mindset, and willingness to grow technical skills over time

Target salary range: $100,000 - 175,000. Final compensation will be determined by a variety of factors including but not limited to your skills, experience, education, and/or certifications.

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