I'm professional drupal backend developer with 5+ years of experience (from D6 to D8, including Drush). I'm also an active contributor to the Drupal.org community by providing patch or custom modules.
Below is a short list of what I can do :
1] Select and configure contrib modules according to your needs : Exemple : you're looking for a module which allows you to have nice URLs pattern in order to have a better SEO result. I will select the appropriate contributed module and configure it for you (in that case, you'll have to provide me either an FTP/SFTP access and a user/pass to your Drupal)
2] Write a custom module : Exemple : you need a module which retrieves informations from a website. I'll write the custom module and install it for you.
3] Some troubles with a module ? Or maybe you encounter a bug and you don't know where it's from ? Let me take a look at it! I'll fix drupal contrib or built-in module issue,
4] Install, update or configure your Drupal installation,
5] If necessary, i'm able to work with Apache, MySQL/PostgreSQL
Before ordering a gig, it's very important (and I insist) that you contact me first.