What is the relationship between 'Jira' and 'Atlassian' in the context of the input sentence.
Options: platform, developer, stock exchange, director/manager

Our engineers use Ruby on Rails, and the team as a whole works with several tools, such as Salesforce to track leads, Amazon S3 for IT storage, Atlassian Jira and Confluence for tracking and documenting progress, and Act-On, Nickelled, SEO Monitor and Google Analytics for marketing.
developer