Immigration officer
sʌtrudnʲik ɪmmʲiɡrʌtsyonnʌj sɭuʒby
In Russian Сотрудник иммиграционной службы
In Russia, immigration officers are part of the Federal Security Service and handle border control.
Example
"Сотрудник иммиграционной службы проверил мой паспорт."