Germain joined AFP in 2006 on the Economic Desk in Paris. He was then appointed to New York for 4 years before moving to Moscow in 2012. Since 2019, he has been Deputy Editor-in-Chief in London, where he coordinates news coverage in the UK and Ireland.
His career at AFP has led him to cover a variety of subjects such as the collapse of Lehman Brothers and the financial crisis, the revolution in Ukraine, the annexation of Crimea, the Brexit and more recently the death of Queen Elizabeth.