Sharrock, who was once ranked fifth in New Zealand men's and mixed doubles badminton, spent October 2017 in Yogyakarta, Indonesia with the NZ Juniors as their manager for the Junior World Championships.
They came 20th out of 44 teams and Sharrock appreciates this step up to be able to directly coach the players.
"I am really looking forward to the added responsibility...and learning a lot more about myself as a coach in the process.
"I am really thankful to Badminton New Zealand for another opportunity to represent our country through assisting our up-and-coming young players to be the best they can be, and to help them achieve their goals of being able to compete with the best on an international stage."
Sharrock, a former Wanganui wicketkeeper-batsman, also confirmed he will be coming back to local club cricket this season after the trip.
"I took most of the cricket season off last year, to focus on badminton and coaching while I was living in Auckland, which is now paying dividends."