- Expert in Python, and web development frameworks such as Django.

- Good understanding of relational databases.

- Familiarity with some ORM (Object Relational Mapper) libraries.

- Able to integrate multiple data sources and databases into one system.

- Understanding of the threading limitations of Python, and multi-process architecture.

- Good understanding of server-side templating languages.

- Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3.

- Understanding of accessibility and security compliance.

- Knowledge of user authentication and authorization between multiple systems, servers, and environments.

- Understand the fundamental design principles behind a scalable application.

- Familiarity with event-driven programming in Python.

- Understanding of the differences between multiple delivery platforms, such as mobile vs desktop, and optimizing output to match the specific platform.

- Proficient understanding of code versioning tools such as Git, Mercurial, or SVN.