I work in that very field, so I hope this input will be useful to you: There's no one thing called "SAP" anymore. It's many platforms, ranging from the old ERP

I work in that very field, so I hope this input will be useful to you: There's no one thing called "SAP" anymore. It's many platforms, ranging from the old ERP (with its ABAP programming language) to CRM to HR to E-commerce. With the exception of its proprietary tools (like ABAP), you can certainly leverage your Java/JS skills. If you have access to SAP training (though it's neither cheap nor easily accessible), get some training on the dev tools and find beginner-level openings in companies or consulting firms. (Reality check: the latter will be harder - you are competing with a truly global developer-base for SAP.) If you don't have access to training, then drop the proprietary ABAP route and stick to Java. You can apply those skills in SAP's more open stacks for e-commerce, mobile etc. The public sector (Federal/State governments, public utilities, military etc) are also big SAP users and are often hard-pressed to find US citizens (assuming you are a US citizen). That may be another avenue to explore.