Initial chat; two more technical interviews; and an interview with the CTO. Highly recommend to AVOID this company. I went through the interview process around the beginning of March 2022 and spoke to some very nice people along the way. I was offered the position, which I accepted as it seemed like a good place to work, with an interesting product. Yumpingo sent me my contract of employment, which I signed and (obviously) handed in my notice to my old employer. After HR at Yumpingo had ignored me for over two weeks, I felt that something weird was afoot and so I went to check the DocuSign contract and found that it had not actually been signed on their side. I sent an email to find out what was happening and was told that they were going through an internal reshuffle and I would have to try to extend my notice period at my old job, without actually giving me a concrete starting date. This kind of organisational news is obviously not something that just comes out of the blue and so HR could have reached out to me and asked if I would be ok with waiting until September to start, however, they made zero attempt to do so. This itself should have been a giant red flag - lesson learned - and raises the question: how long would I have had to wait to find this out if I hadn't checked? On the contractually agreed start date (beginning of July)? Notwithstanding that asking me to extend my notice period is ridiculous request, without a concrete start date it would obviously be impossible to ask for an extension, and not many people can afford a three-month period of unemployment - something which was mentioned and met with completely apathy. After some back and forth, and HR sending me non-substantive responses, I was told that they would likely need to postpone my start until "at the latest the first week of September" - again, no concrete date. On two occasions, I was told to wait two weeks because the company would know more, and after waiting, I received no response and had to reach out myself. Obviously, once I discovered that Yumpingo were messing me around, I went ahead and continued interviewing. After accepting another job offer, I sent an email letting them know (a courtesy that, frankly, they did not deserve), and explaining how unprofessional their behaviour has been and that everything could have been avoided if they had been proactive in their communication. Unsurprisingly, the response from HR was a complete non-apology and excuse-making. I was told that they "would have been proactive but you contacted us first" - quite literally the opposite of proactivity. If this experience is any indication of how Yumpingo treats its employees or of the general level of competency internally, then anyone thinking of working here would do well to give them a wide berth.