Camunda is not a place to work if you would like to keep a work/life balance. The CEO has stated as much.
Sure, there is an unlimited time off policy, but it's common to see others working during their vacations. You'll be working on your time off too. Hours are long because there is a high workload assigned to every engineer. You're expected to make meaningful progress on many things all at once with no relief on any of them if you'd like to focus on one task. There's no way anyone could accomplish it all in a normal 40 hour work week. With the amount of workload given to engineers, there is no enhanced compensation to make up for it. Salaries and the equity given are nothing special. Why should an engineer be expected to give so much to the company, when the pay and equity is not better than any other place?