The Malian migrant, who rose to fame after scaling four apartment storeys to rescue a boy hanging from a balcony, has started his first day with the Paris fire brigade.
Mamoudou Gassama was nicknamed ‘spiderman’ after footage of him athletically climbing the flats to reach the boy was viewed millions of times on social media.
The feat secured the 22-year-old an audience with President Emmanuel Macron, who granted Mr Gassama French citizenship.
The Paris fire brigade also offered Mr Gassama a job in the wake of his heroics, an offer the service made good on when the Malian joined its latest intake of recruits over the weekend.
The fire service tweeted a picture of its new volunteers saying: “24 new volunteers civic service including Mamoudou Gassama joined this afternoon the fire brigade of Paris. Congratulations to them.”
The service later confirmed Mr Gassama had started working for the brigade on Sunday.
New recruits have to pass a stringent fitness test to join the French fire service, something Mr Gassama proved he was more than capable of when he rescued the stranded boy in May.
A passerby captured the incident on film which showed the four-year-old hanging from the ledge of the fourth floor of an apartment block in Paris’s multi-ethnic 18th arrondissement.
With a neighbour unable to reach the boy, Mr Gassama emerges from a crowd of onlookers and scales the balconies in under a minute.
The film shows a crowd cheering on Mr Gassama from the street as he pulls himself from balcony to balcony with his bare hands.
He then manages to grab the boy and pull him to safety before the crowd erupts with cheers.
During his visit to the Elysée Palace, where he was awarded a medal for his bravery, Mr Gassama told President Macron: “I ran. I crossed the street to save him. When I started to climb, it gave me courage to keep climbing.”
God “helped me” too, said Mr Gassama, who said that his legs felt like jelly once the child was safe and sound. “Thank God I saved him.”
The four-year-old’s father, who had allegedly left him in their flat to go shopping, and then stayed out longer than planned to play Pokemon Go, faces charges of child neglect. He is due to appear in court later this year.