Atlassian

You can work on products people love to use. You can notice how the company tries to change itself from an installed software company to SaaS. You will be able to work closely with product managers and together shape the product. Despite its size, the company is still rather open. By observing internal communication tools, you can get the feel of what's going on and participate in different activities.

Depending on the team you join, you might face a crappy and abandoned technology that no one else uses. If you wish to keep up with cool technologies, it might not be a good place for you. You will face a wall when it comes to making those products technically better – sacred APIs that cannot be changed, a scary plugin system, or a hacked Maven for builds. I would advise choosing teams that work on recently created products. Avoid more mature ones.

The company is growing a lot and plans to do so in the upcoming years. So, despite their great values, the atmosphere starts to feel like in any other "corporation" – a multi-level managerial structure, bad people management.