Need help / check my spelling please

Hello everybody.

Is someone could help me by review and above all checking my spelling of my text below. It's a brief summary of my work placement report. This text is placed on the 4th cover.

I have done my training period in a firm called « souim », which is located at Lyon in the Loire. In a first time, I introduce the firm overall. Then I specify what I have seen and done with some details on the equipment used. In this report you could see the different functions of each job(métier), the distribution and coordination of the work, the environmental conditions, and the repetitive tasks. I detail the working environment, in other word, here, the architecture of the french telephone network.

I thank by advance the person(s) who help me.