At SAP, we keep it simple: you bring your best to us, and we'll bring out the best in you. We're builders touching over 20 industries and 80% of global commerce, and we need your unique talents to help shape what's next. The work is challenging - but it matters. You'll find a place where you can be yourself, prioritize your wellbeing, and truly belong. What's in it for you? Constant learning, skill growth, great benefits, and a team that wants you to grow and succeed. This position requires access to customer data; Must be a U.S. citizen. SAP NS2 does not offer Visa sponsorships for this role. All internals must have manager's approval to transfer. SAP is the global market leader for business software and related services. SAP National Security Services (SAPNS2) is an independent U.S. subsidiary, offering SAP solutions with specialized levels of security and support to meet the requirements of U.S. national security and critical infrastructure customers. We are seeking a highly experienced Senior Java Developer to support, maintain, and enhance a suite of standalone cross-domain security applications. This role requires deep technical knowledge in Java-based development, system-level configuration, and cross-domain data transfer protocols, as well as hands-on experience with secure system deployment, logging, testing, and data transformation.