Sr. Software Engineer; Back End Developer Security Clearance

Position: Sr. Software Engineer (Back End Developer) with Security Clearance
Sr. Software Engineer (Back-End Developer) Mid-Level | $100,000 - $164,000 | Newport News, VA | Secret Clearance Required Develop the code behind mission-critical defense systems. Join Caribou Thunder as a Back-End Software Engineer supporting the Global Command and Control System - Joint (GCCS-J), the Department of Defense's enterprise solution for joint and multinational command and control operations. You'll build and modernize software that fuses battlespace intelligence, delivering real-time situational awareness to warfighters across the globe.

A Day in the Life - What You'll Do
• Design, develop, and maintain back-end software components for the GCCS-J platform.
• Write robust, scalable RESTful web services and integrate event-driven architectures.
• Collaborate with multiple geographically distributed development teams in an Agile environment.
• Conduct independent technical investigations and recommend optimal software solutions.
• Architect, implement, and maintain databases (SQL, No

SQL, and Geospatial).
• Support continuous integration and delivery through testing, deployment, and maintenance.
• Communicate effectively with stakeholders and leadership to ensure timely, high-quality deliverables.

Required Qualifications
• Bachelor's degree in a Science, Technology, Engineering, or Mathematics (STEM) discipline, or equivalent experience
• Advanced proficiency in Java and Object-Oriented Design and Programming
• Experience developing RESTful web services
• Proficiency with event and messaging platforms (e.g., Apache Kafka, Rabbit

MQ, Active

MQ, Graph

QL, NATS, SSEs)
• Experience with multiple database types (SQL, No

SQL, Geo Spatial, Key/Object pair)
• Strong understanding of back-end software architecture and design principles
• Excellent written and verbal communication skills and ability to work in a collaborative environment
• U.S. citizenship with the ability to obtain and maintain a Secret clearance

Preferred Qualifications
• Experience with IDE tools such as VSCode, Eclipse, or Net Beans
• Experience writing microservices using Spring Boot
• Familiarity with build ecosystems (Maven, Gradle, Jenkins)
• Experience with automated testing (JUnit, Jest, Robot, Selenium)
• Working knowledge of Linux and Windows administration
• Experience with Docker, Open Container Initiative (OCI), and container orchestration tools like Kubernetes and Helm
• Familiarity with database design and performance debugging
• Experience with Agile methodologies
• Understanding of Command and Control (C2) Systems and DoD environments
• Familiarity with Application Security and Development Security Technical Implementation Guides (STIGs)
• Experience with static code analysis tools (Sonar Qube, Fortify) and secure coding standards
• Knowledge of networking and troubleshooting
• Proficiency in the Atlassian Suite (JIRA, Confluence, Bitbucket)
• Ability to apply mathematical and statistical concepts to algorithm development
• Background in military intelligence, imagery, or strategic planning
• Active Top Secret Security Clearance If this sounds like you, we'd love to talk. Apply today and build something that matters. Who is Caribou Thunder? Caribou Thunder is a HUBZone-certified small business providing advanced technical and engineering services to the U.S. Department of War and its mission partners. 35+ states and 20+ countries. We've delivered trusted solutions for over two decades - strengthening national readiness across missions on land, undersea, in the air, and throughout LEO, MEO, GEO, and deep space.

Why Caribou Thunder? TEAM THUNDER - Mission Focused. Delivery Proven. Ready to Serve.
* Employee Advocacy
* Mission Proven
* Global Reach
* Skilled Teams
* Modern Tools
* Empowering Culture Our engineers and innovators ensure capability from sea floor to space frontier - delivering on time, maintaining compliance, and performing with precision in high-consequence environments. We specialize in Engineering Services, Cybersecurity, Software Development, Modeling & Simulation, Digital Engineering, and Artificial Intelligence - disciplines powering the nation's most complex technical missions. Employee Advocacy + Benefits Our people are the heart of Caribou Thunder.

We invest in their growth, flexibility, and well-being - knowing their success drives ours. Benefits include:
* Premium Health, Dental & Vision Insurance
* 401(k) with 6% Company Match
* Flexible PTO & Work Schedule
* Education & Certification Reimbursement
* Support for Military Leave
* Work-Life Balance & Traditional Family Values Your future, your flexibility, your well-being - we invest in you. Apply and let's connect. #IND1