David Nucifora, the IRFU's high-performance director, has signed a three-year extension to his contract.
The Australian, who was appointed in April 2014, is in charge of developing and advancing all aspects of the professional game in Ireland.
That includes the elite player development pathway, succession planning, professional coach development and overseeing all representative team performance from the provinces through to underage sides and the Ireland national teams.
Philip Browne, Irish Rugby Football Union CEO, said: "David has delivered across a huge number of areas in that regard and Irish Rugby is in a better place for the experience, leadership and passion he has brought to the role.
"We are delighted that he has agreed to continue this important work over the coming years."
Nucifora added: "Myself and my family have really enjoyed our time in Ireland to date and I am excited about the prospect of driving further advancements in Irish Rugby’s performance pathway."
Twice capped by Australia, Nucifora's tenure has seen a number of notable successes including two Six Nations titles (2015 and 2018) and historic victories over New Zealand, Australia and South Africa for the men’s national team, a Six Nations Grand Slam (2019) for Ireland U20s, a Women’s Six Nations title in 2015, qualification for both the women and men onto the 7s World Series, a Champions Cup title for Leinster (2018) and Guinness Pro titles for Connacht (2016) and Leinster (2018).