Got a Junior Back-End Developer offer with 2200€ brut monthly salary ? Is it enough ?

I live in France right now (Not a citizen), and just got this Junior Back-End Software developer offer from a Belgian company. Salary is 2200€ brut (without taxes) and after using online salary calculators for Belgium to find the net (with taxes), I get around 1200€, which is really low for me. I'm a man, not married, no children. Is 1200€ really the actual salary without taxes or are the online calculators wrong ?

I'd appreciate any enlightenments on this.

Thank you.