Atlassian interviews are generally considered harder than many traditional product companies. Candidates are expected to solve medium-to-hard DSA problems while writing production-quality code and discussing edge cases thoroughly.

Hashing, heaps, graphs, trees, sliding window, intervals, binary search, and object-oriented design are among the most commonly tested areas. Graph-related problems appear quite frequently.

For experienced engineers, system design is a major part of the process. Even for entry-level roles, candidates may be asked to discuss scalability, API design, and architectural trade-offs.