Shortly after Jack Dorsey was named permanent CEO of Twitter, the company is reportedly readying company-wide layoffs to begin this week. According to sources, the number of layoffs remains uncertain, but most departments are likely to be affected. Re/code reports, “The downsizing comes at the same time Twitter is restructuring its engineering organization to make it leaner and more efficient, these sources say. It’s likely that many of those impacted by the layoffs will be engineers, which make up about half the staff.” Twitter has more than doubled its number of employees since Q2 2013 to roughly 4,100.