src/main/java/com/example/developer/DeveloperService.java

@@ -0,0 +1,15 @@
+package com.example.developer;
+
+import org.springframework.stereotype.Service;
+
+@Service
+public class DeveloperService {
+
+    public String getRole() {
+        return "Developer";
+    }
+
+    public boolean isValidRole(String role) {
+        return "Developer".equals(role);
+    }
+}