During the Pair Programming Session: - Javascript/React - API Request Logic - Maintainable/scalable code During the Technical Discussion: - Unit Testing/TTD - Code reviews - Gitflow/Source control - Usability - Styling During the meeting with the VP of Engineering: - Performances - Optimisations - Best practices During the meeting with one of the founders - Performance - GraphQL API (structuring) - WebSockets (comparison with GraphQL) - Self-learning