Senior python developer - backend

We are looking for an experienced back-end developer to work on an existing database driven website. Background: We have a SQL database driven by Django and Python with a Bootstrap template front-end. We are seeing a second developer to add functionality to existing features. The database has over 2,000 metrics that need to be displayed in a variety of outputs such as charts, tables and graphs. Duties include: 1. Assist in design of advanced database calls 2. Improve database query functionality (filter/pivot table/exports) 3. First line trouble shooting and bug fixing 4. Assist with system testing 5. Draft and manage system documentation