• Maintain and enhance existing application components, including 4th generation language (4GL) code such as Oracle Forms, Reports, and JavaScript. • Develop, test, and maintain application functionality during quarterly Agile sprints, supporting bug fixes, emergency priority requirements, and minor system enhancements. • Conduct code reviews at key development milestones (50%, 75%, and 90% completion) to ensure code quality and maintainability. • Apply secure coding best practices, including adherence to OWASP principles and DoD Application Security and Development (ASD) STIG requirements. • Design, maintain, and automate system interfaces and data exchange processes between the core application and internal or external interfacing systems. • Support approximately 300 annual data exchanges using Secure File Transfer Protocol (SFTP) and implement modernized data exchange mechanisms such as API-based integrations. • Develop reusable integration processes to connect with data sources across multiple cloud infrastructures and incorporate them into the enterprise architecture. • Integrate application functionality with DoD and Service-level systems to support enterprise interoperability. • Support the migration and deployment of applications to Cloud Service Providers (CSPs) in compliance with the DoD Cloud Computing Security Requirements Guide (SRG). • Assist with modernizing the existing monolithic application architecture toward micro front end and micro services based solutions. • Develop cloud-native application components and micro services supporting ongoing system modernization initiatives. • Contribute to the development of an enterprise system architecture roadmap supporting modernization efforts through 2030 and beyond. • Implement user interface and user experience improvements as part of application modernization activities. • Develop and execute unit testing and automated test cases, ensuring functionality meets performance and quality requirements. • Integrate automated tests into DevSecOps CI/CD pipelines prior to deployment authorization. • Participate in System Testing, User Acceptance Testing (UAT), interface testing, and regression testing for system releases and updates. • Perform application security scans using tools such as Fortify and Sonatype, and re-mediate vulnerabilities in accordance with Cyber Hardening Policies.