A new body called the UK Trade Remedies Organisation will be set up to tackle allegations of unfair competition and investigate complaints.
The online advert for a digital design lead said the organisation needs to be up and running by October 2018 - ahead of the UK's exit in March 2019.
The UK can then enforce its own trade rules - a job currently done by the EU.
"This is a challenging deadline and the Trade Remedies Implementation Team is being formed to ensure this is effectively delivered on time," read the advert.