Hi @STEPHANE1,
If you’d like to find French-English translation and proofreading tasks, we encourage you to check the TWB Platform, where you can filter tasks according to source and/or target language. We have some video tutorials available to help translators get started: 
To access all translation and revision tasks, you’ll need to qualify as a TWB Verified Translator. 
You can learn more about verification here.
We also encourage translators to take our online course, Introduction to Humanitarian Translation, where you will learn about humanitarian translation, the history and work of TWB, and using the TWB Platform. You will receive a certificate of completion once you finish. You can learn more about the course here. 
Thanks for your interest in TWB and please don’t hesitate to let us know if you have any questions! 