BlackBerry has completed a restructuring process which has seen it significantly cut its workforce and aggressively control costs in recent years, according to an internal memo from John Chen (pictured).

According to the CEO’s missive, cited by Reuters, “the workforce reduction that began three years ago is now behind us” – the cuts started under former boss Thorsten Heins, as the company’s smartphone business struggled.

With its renewed focus on the enterprise business, it will now “be adding headcount in certain areas such as product development, sales and customer service, beginning in modest numbers”, Chen said.

BlackBerry last week announced its acquisition of Secusmart, a company providing voice and data encryption technology.

But the positive news came with the caveat that this is “barring any unexpected downturns in the market”.

Chen previously said that BlackBerry is expected to return to profitability in fiscal 2016, having said that its key financial metrics show a “stabilisation” of the business.

Alongside its focus on the enterprise market, the company has also unveiled a BlackBerry 10-powered smartphone for emerging markets, in partnership with Foxconn.

The company also has new devices in the works for its core enterprise customer base, including the ‘Classic’ device intended to win-back customers of previous-generation smartphones, and Passport, which has a distinctive square design.