Just five months after being appointed to the role of managing director, Optima's Douglas Wong has resigned from the company.
Wong, who had previously been a non-executive director and advisor for the computer manufacturer, was promoted to the MD's role in July after founder Cornel Ung decided to step back from the day-to-day business and take on an executive chairman role.
In an ASX statement, Optima said Wong was leaving to pursue "external interests".
The recent change will see Ung reassume the additional duties as managing director as well as that of executive chairman of the company, according to the statement.
Optima CFO and company secretary, Justin Taylor, who was posted to the job after Pipvide Tang's exit in April, has also resigned from the company.
Optima said Edmond Chan would take on the CFO position, while Tang would be reinstated as company secretary and non-executive director.
Chan had been a director of Optima until August.
The company has also created a new sales and marketing director's position, which will be filled by ex-Nortel marketing director, Charles Yan.
The role will be focused on furthering awareness of Optima's product and services, the company stated.
Yan also held positions at Compaq and Digital and has worked throughout the Asia-Pacific.