Menu bar missing on fresh CiviCRM on Wordpress
The issue is the way WP Engine builds the user directory structure.   We have a proposed patch in : https://github.com/civicrm/civicrm-core/pull/8494

Until that is merged, you can use the answer listed here: Word Press Install Missing civicrm.settings.php; dashboard unavailable; no menus

Make sure the global $civicrm_setting; precedes $civicrm_setting['URL Preferences']['userFrameworkResourceURL'] = 'http://example.com/example-resource-url/';