Apa spent little over a year at the Swiss bank, which is currently recovering from the loss Andrea Orcel, the head of its investment bank in September.
The company also announced its first private equity investment in China, where it partnered with Everbright, to invest up to $150 million in their New Economy Fund.
The QIA has about $320 billion in assets, ranking as the 10th largest wealth fund globally, according to the Sovereign Wealth Fund Institute.
As Head of Retail Banking in Asia, Gonzalo and team have executed a segment-led, client- centric strategy with outstanding results.
Alex Hoctor-Duncan, the former head of retail sales for Emea at BlackRock, joins Aberdeen Standard Investments
Taimur joins from US law firm Curtis, Mallet-Prevost, Colt & Mosle where he was a partner in the Dubai and Muscat offices.