"Cubic Consulting is a key business within the FTS Group focusing on the people side in a digital transformation," said FTS Group chief executive Stephen Kowal.
"David's experience and skills in working with an extensive base of companies in distinct markets will be highly prized by organisations transitioning to cloud applications and embracing a culture of constant change in support of delivering competitive advantage."
Dekker most recently led SAP's Australian business in the education sector, having previously held the equivalent role in the Netherlands.
"Reducing time to value is an important metric for companies when implementing a new IT solution and Cubic Consulting's almost two decades of experience in IT-focused change programs is uniquely positioned to help these organisations," said Dekker.
"I am thrilled to join Cubic Consulting at this time in its growth and to be working with a highly skilled team in supporting Australian public and private sector organisations embarking on their digital transformation programs of change in the years ahead."