The post office receives roughly 80,000 pieces of mail every season and the penguins are being monitored for the British Antarctic Survey with a report due after service is completed.
The base, which helps with conservation efforts and offers information to visitors, will be open to the public for the first time since the COVID-19 pandemic began.
Workers will be living in conditions that include limited power, no running water or internet access. Applications must be sent in by 7:59 p.m. EDT on April 25.
Those outside the U.K. can apply but must have the right to work in the U.K. Training for the jobs will take place in Cambridge in October.