How do you scale your codebase? We have more than 100 apps, 200 developers in 5 different time zones and more than 1 million lines of code in our frontend repository. With the codebase that big it’s vitally important to have shared patterns, principles and standards and it’s even more important to make sure everyone actually follows those standards. Learn about the architecture, patterns, and technologies that Atlassian has developed to scale frontend development of its largest and most popular product: Jira, and lessons learned on that journey. No special knowledge is required, but familiarity and some experience with modern frontend tech stack and ecosystem would help you to get the most out of this talk.