The move is an effort to "pace its story" across a number of markets, explained Tesco group media director Tom Hoskin.
"We’re operating across a lot of different markets with a lot of other businesses, such as Tesco Bank, and we want to make sure we capture all that activity to convey a sense of Tesco as an innovative and interesting business," he said.
Interviews are currently taking place for the new role of planner, which will report directly to Hoskin.
As well as overseeing the supermarket’s news grid – an innovation brought in following the arrival of Hoskin from Number 10 – the UK-based position will include building stronger relationships with international teams.
"The target is to build a properly functioning comms global network," added Hoskin, "where we are providing support to all of our country markets but also pulling in expertise and using the great work done in those markets.
"The planner will sit at the centre and try to capture the information that goes between our team here and those internationally, ensuring that we all have the right focus."
Tesco operates in 12 markets, including China, Hungary, India and Turkey.
However, it has recently reined in its global expansion, and is in the process of pulling out of the US altogether.