The 19-year-old is enjoying his second season with Farnborough, having recently made his way into the team following injury at the start of the season.
Over the previous five games, the former Woking youngster netted six goals which saw him named in The Vanarama National League South Team of the Week for two consecutive weeks.
Boro boss Spencer Day added: “I’m delighted we can continue with Selim’s development and he’s committed to us. Amazing potential in a young man and he’s grabbed his chance to really earn this contract.”
Selim made 17 starts in The Pitching In Southern League Premier South throughout 2021/22 as Farnborough secured promotion to The National League South.
The tricky winger scored two memorable goals in the Hampshire Senior Cup last season – a spectacular finish against Aldershot Town last year, along with the opening goal in the Hampshire Senior Cup Final at Eastleigh.
Selim is wearing shirt number 24 this season. Visit the O’Neills Online Shop to buy a personalised shirt with his name and number on.