Answer
(Fatwa: 248/248/M=1433)
It is not obvious what type of work is related to you? However, it is unlawful and haram to write and read interest based dealing or bear witness to it. It is not right to help in these interest based work. Usually in finance and insurance companies interest based dealings are carried out. Also, in most of the companies the procedure of multilevel marketing is not based on Islamic business principles. If it is so, then you should keep on searching halal and pure job and immediately leave your present job when you get one.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband