ESL Content Writer - vocabulary and grammar exercises

We are an online English language school in Russia. We are looking for experienced ESL writers to provide grammar and vocabulary exercises for our project at the CEFR B1 to C2 level.
Writers should have experience in ESL teaching and writing and a detailed knowledge of the CEFR levels.
We have three different kind of jobs (you can choose the one you like):
1) Advanced level exercises with videos;
We have about 500 advanced level videos. We need someone who can create exercises for them.
2) Vocabulary exercises:
We need to create up to 200 vocabulary learning exercises for Intermediate and Advanced learners. These exercises will contain two parts: vocabulary list (it will be converted in an interactive presentation by our designers) and practice activities.
3) Grammar exercises:
We need to create up to 50 Grammar learning exercises for Intermediate and Advanced learners. They will includegrammar point explanations and practice exercises.

Please, send your CV tolanguage.inspire@gmail.com< span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 13px;">and we will give you more details about the job.