African star tech start-up lays off hundreds of junior developers

Major African tech start-up Andela sacked hundreds of its staff this week -- the majority from Nigeria -- in one of the largest layoffs in the continent's budding tech industry.

What you need to know:

The start-up has won mass plaudits across the continent and caught the attention of high profile investors, with Mark Zuckerberg and former US Vice President Al Gore key backers.