Senior Application Developer - RFMSS

LMI is seeking a Remote Senior Application Developer to support the Range Facility Management Support System (RFMSS) within a Scaled Agile Framework (SAFe) Agile Release Train (ART). This role involves designing, developing, and maintaining applications critical to military training range operations. The ideal candidate will collaborate with cross-functional Agile teams, product owners, system administrators, and cybersecurity personnel to ensure high-performance, scalable, and secure solutions.

At LMI, we're reimagining the path from insight to outcome at The New Speed of Possible. Combining a legacy of over 60 years of federal expertise with our innovation ecosystem, we minimize time to value and accelerate mission success. We energize the brightest minds with emerging technologies to inspire creative solutions and push the boundaries of capability. LMI advances the pace of progress, enabling our customers to thrive while adapting to evolving mission needs.

Develop and maintain enterprise applications supporting RFMSS, ensuring reliability, scalability, and security.
• Design and implement RESTful APIs, web services, and integrations with existing military IT systems.
• Participate in Agile ceremonies, including PI Planning, Iteration Planning, Daily Standups, and Retrospectives.
• Collaborate with UX designers and business analysts to enhance user experience and system functionality.
• Conduct code reviews, unit testing, and automated testing to maintain code quality and security compliance.
• Optimize database queries and application performance, ensuring high availability and efficiency.
• Work with system administrators to support deployment, DevSecOps pipelines, and infrastructure automation.
• Implement security best practices, including compliance with DoD RMF, STIGs, and vulnerability scanning requirements.
• Troubleshoot and resolve complex application issues, ensuring minimal system downtime.
• Document technical specifications, development processes, and system architectures.

• Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent experience).
• 5+ years of experience in enterprise application development using .NET (C#), Java, or similar languages.
• Proficiency in web application frameworks such as ASP.NET, Angular, React, or Vue.js.
• Experience developing and integrating RESTful APIs and microservices.
• Strong knowledge of SQL databases (SQL Server, PostgreSQL, or MySQL) and query optimization.
• Familiarity with containerization technologies (Docker, Kubernetes) and cloud environments (AWS, Azure).
• Understanding of CI/CD pipelines, DevSecOps, and automated testing frameworks.
• Experience working in an Agile or SAFe environment and collaborating within an Agile Release Train (ART).
• Ability to obtain and maintain a Secret security clearance.
• Ability to travel once per quarter for PI Planning.

Preferred:

• SAFe certification (e.g., SAFe Agilist, SAFe DevOps Practitioner, SAFe Practitioner).
• Experience with military training systems or DoD applications.
• CompTIA Security+, CISSP, or other cybersecurity certifications.
• Knowledge of IaC tools such as Terraform or Ansible.
• Experience implementing zero-trust architectures and application security frameworks.