Application Developer

KMRG, LLC•Bethesda, MD

5d•$110,000 - $130,000•Onsite

About The Position

Application Developer II - Build Mission-Critical Systems Supporting the U.S. Navy. We're seeking a talented Back End Application Developer II to support the Naval Dosimetry Center (NDC), the U.S. Navy's center of excellence for radiation exposure monitoring and force health protection. In this role, you'll help modernize and sustain the core systems that protect Sailors, Marines, and civilian personnel around the globe. This is an opportunity to work on a high-impact federal program leveraging modern cloud-native technologies, microservices architecture, and DevSecOps practices within a secure AWS GovCloud environment. You'll collaborate with a team of engineers, architects, and government stakeholders to design and develop scalable backend solutions that directly support national defense and operational readiness. If you're passionate about building secure, resilient applications and working with cutting-edge technologies in a mission-driven environment, we'd love to hear from you.

Requirements

Bachelor's degree in Computer Science, Software Engineering, or related field
5+ years of experience developing backend applications using: Java, Spring Boot, SQL, Hibernate/JPA, Microservices Architecture
Experience developing and securing REST APIs
Knowledge of DevSecOps practices, including SAST, DAST, dependency scanning, and secrets management
Strong problem-solving, analytical, and communication skills
Ability to create clear technical documentation and support engineering reviews
Active Secret Clearance
U.S. Citizenship

Nice To Haves

AWS Developer Certification or equivalent cloud certification
Experience supporting DoD, Navy, or federal modernization programs
Familiarity with AWS GovCloud, FedRAMP, and IL4 environments
Experience with Aurora PostgreSQL optimization and performance tuning
Knowledge of CUI handling requirements
Experience with Kubernetes, containerized solutions, and CI/CD automation
Familiarity with IoT integrations and MQTT protocols

Responsibilities

Design, develop, and maintain Java Spring Boot microservices that power mission-critical applications.
Build and support secure RESTful APIs that enable seamless integration across enterprise systems.
Develop highly scalable backend services utilizing AWS GovCloud, Aurora PostgreSQL, and modern cloud-native architectures.
Optimize database performance through efficient query design, data modeling, and tuning strategies.
Support data migration, integration, and transformation efforts across legacy and modernized platforms.
Implement secure development practices aligned with Zero Trust, FedRAMP Moderate, DoD IL4, and cybersecurity best practices.
Contribute to automated CI/CD DevSecOps pipelines, improving deployment speed, security, and reliability.
Collaborate with cross-functional teams to deliver innovative technical solutions supporting critical Navy operations.
Help shape backend architecture recommendations and engineering best practices for future platform enhancements.
Support system performance, monitoring, troubleshooting, and continuous improvement initiatives.