Onsite Job - Software Engineer-Developer 3 | Colorado Springs, Colorado, United States Software Engineer-Developer 3 Onsite | Colorado Springs, CO or Huntsville, AL | Secret Clearance Required About the Role Join Indotronix as a Software Engineer-Developer 3 and shape the future of advanced defense technology. Collaborate with top industry partners to design and implement mission-critical mathematical algorithms for Missile Defense Systems (MDS). Work in a fast-paced, secure environment where your contributions directly impact national security while developing enterprise-grade Java solutions. Responsibilities - Design, develop, and optimize Java-based mathematical algorithms in partnership with industry leaders - Execute the full software development lifecycle: requirements, design, coding, testing, integration, and troubleshooting - Create and maintain software design documents; participate in code and design reviews to ensure quality and scalability - Engage in Agile sprint planning, execution, and continuous improvement activities - Develop software requirements and system architecture for MDS applications - Enhance and implement integration and testing processes, tools, and metrics - Document and execute integration and testing activities - Collaborate with cross-functional teams to deliver robust, scalable solutions Required Skills and Experience - Bachelor's degree in Engineering, Computer Science, Mathematics, Physics, Data Science, or related STEM field - Minimum 1-2 years of relevant experience - Proficiency in Java, J2EE, or Spring - Ability to translate MATLAB-based algorithms into Java-based software - Experience with server-side development and message passing - Familiarity with version control and development tools: Git, Eclipse, Maven, Nexus, JIRA, Confluence - Strong analytical, communication, and collaboration abilities - Active U.S. Secret Security Clearance (current or active within last 24 months) - Willingness to travel up to 10% Preferred Skills - Exposure to Agile development methodologies - Experience developing enterprise-level applications - Understanding of system engineering artifacts (Use Cases, UML diagrams) - Experience in complex mathematical algorithm development (e.g., tracking, guidance, radar systems) - Security+ certification (or equivalent) Benefits - Competitive compensation with possible overtime - Opportunities for professional growth and upskilling in high-impact defense projects - Collaborative, mission-driven team environment - Gain exposure to advanced technologies and career advancement within a leading defense contractor How to Apply Ready to advance your software engineering career in a high-security, high-impact environment? Submit your application with a detailed resume highlighting your Java development and algorithm experience. Qualified candidates will be contacted for next steps.