"Erik's strong management skills and expertise in strategic development, and financial planning and analysis is a perfect fit for Atlassian as we expand into new markets," said co-founder and co-CEO Mike Cannon-Brookes.
"His private and public company experience will be a huge asset as we continue our growth trajectory as a private company but operate the business as public-market ready.
"That gives us the greatest flexibility to do what we've always done, which is to make decisions that are right for the long-term."
Bardman has previously served as CFO at Roku, Logitech, and eBay. He spent the first 15 years of his career in various positions at General Electric, including a period as vice president of strategic pricing at GE Global Consumer Finance.
He is currently a director and chairman of the online real estate marketplace Audit Committee of Trulia.
"Atlassian is an amazing company with huge untapped opportunities and a 21st-century approach to the enterprise software business, which makes it the success it is today and will be going forward," said Bardman. "It's exciting to join a company that is so well-positioned for this next phase of growth."