Ushkov said he held preliminary consultations with Vitkoff and Kushner before their negotiations with Putin.
The assistant to the President of the Russian Federation noted that there is currently no position open.
"Now there will be a major meeting with the President of Russia," Yuri Ushkov told reporters.
Earlier, Russian media reported that Ushkov and Putin's special envoy Kirill Dmitriev arrived at the Four Seasons Hotel in Moscow, where Steve Witkoff and Jared Kushner are staying.