I wonder which level do you mean here: "I'm not privy to the actual brackets, but I can safely say they are 9+."?
Please see:
In terms of "baskets" as laid out by Junior_Krakow in this post: http://4programmers.net/Forum/Kariera/224406-widelki_na_roznych_poziomach_-_krakow_java?p=988146#id988146 - I can confirm that Chatham is in the 3rd basket.
I would expand that list to include a 4th basket, starting at around 18+. Companies in that basket include GE Healthcare and Google (who, if I am not mistaken (?), has left Krakow).
And how daily routine works: working hours, work from home possibility, flexibility etc. What is level of stress and atmosphere in work. As those thing are also important.
Typical working hours are 9am-5pm. This is not set in stone and we are flexible; it is up to the discretion of the hire to iron out the details with their manager/team/co-workers. It is usually not a problem to work from home if you have some private matters to attend to, but we do discourage working from home for any longer period of time.
The environment is low stress, we have the benefit of (basically) developing software for ourselves, so we are in charge of setting and adjusting deadlines, as needed.
The technology team is around 110 people – most work in Pennsylvania, USA. We currently have 6 developers and 4 testers in the Krakow office. Teams are generally small (2-4 people) and are organized around projects which can last up to a year. Around 20% of those projects are strictly maintenance projects (meaning that we are either cleaning up technical debt or working to fix bottlenecks in older code), 10-15% of those are greenfield projects, and the remainder are ongoing streams to build out functionality in existing systems.
Continuous integration is central to our development process. We have a deployment pipeline in place with several gates (unit tests, static code analysis, integration tests, acceptance tests) to enforce a tight feedback loop. We are primarily a dotnet/C# shop with a micro-services architecture.
Is there anything specifically you would like to know about the environment/atmosphere?