We are a B2B Shop and we have thousands of references, changing all the time. We would like to create a PDF catalog to send our clients, but we would like to manage the list of products and there position through an excel file.

If you have experience with InDesign Plugins such as EasyCatalog, IDML ( indesign xml) etc.. : then you should definetely apply.

If you dont know what i'm talking about and plan to do everything manually, then you should pass.
https://www.65bit.com/software/easycatalog

This catalog needs to be updated every Month or so so we really need something scripted.

I perform with a music group who has played for 20 years, and has given a lot of concerts.  We are looking to establish an online database of all our performances, complete with audio and video of the concerts.

I need a database programmer who can create this online data query builder for the users.  The database is very relational, and it should be simple for an experienced database programmer.  User management (signup, password recovery, management) would be standard, and use whatever tools the programmer already has.

Ease of use and robustness of the querying are of great importance.  The result must look very professional, and be EASY to use (the director is not computer friendly).  I would like to see something similar you've done, and will give more details to the shortlisted candidates.

Time frame is maybe a month or so, but we will go back and forth with ideas because I do not have a detailed spec.  I'm counting on the programmer having experience in designing something like this.