We are open to supporting 100% remote work anywhere within the United States. Must be able to support Eastern Time Zone The Digital Modernization Division at ICF is a rapidly growing, technology-driven team delivering strategic IT and consulting solutions to public and private sector clients. We are seeking a Senior .NET Developer to support the Department of Defense (DoD) Child and Youth Programs (CYP), a mission-critical initiative providing military and DoD-affiliated families with access to affordable, high-quality childcare, which directly supports force readiness, morale, and retention. In this role, you will contribute to the modernization and integration of legacy CYP systems through custom, modular web application development. Our team collaborates closely with government stakeholders and contractors to deliver secure, high-performance, public-facing applications. This position offers the opportunity to support meaningful outcomes for military families while applying cutting-edge development practices in a dynamic, agile environment.