Peterborough MP Stewart Jackson has been appointed Parliamentary Private Secretary to David Davis - the minister for Exiting the European Union.
Mr Jackson was a a leading campaigner for the Leave Campaign in the EU Referendum.
He will assist Mr Davis in negotiating the UK's exit from the EU.
Mr Jackson tweeted that he was "delighted" with his new role.
Delighted to have been appointed Parliamentary Private Secretary to the Secretary of State for Exiting the EU, Rt Hon David Davis MP.
Two MPs from Norfolk and Essex have been given special advisory roles in Theresa May's government reshuffle.
More MPs from the Anglia region have been given new jobs in Theresa May's new government.
We looks at who's in and who's out of Prime Minister Theresa May's new cabinet.