IBM Software Engineer Senior Software Engineer interview questions

Prescreen interview with one of two hiring managers. Some probing questions based on both my resume as well as their project needs. That led to 3 technical screens - one for each of 3 positions between the two managers. The screens were very technical and with product leads. The questions were challenging and difficult but straight on he direct needs of their project. On the other hand they didn't appear onerous as the positions were good matches and all I had to do was make a strong effort on the fly and with a little nudging here and there. The key point is if you put it on your resume - they'll ask about it - and if it's a direct need they will go deep on it. I did prefer this style - direct and deep technical about what you did and how you'd apply it to their direct needs - far better than random pet-algorithm I haven't needed in 30 years - or puzzle burning ropes on an island questions. Those may be fine for NCGs with naturally little experience but don't bring out what I have done and can by extension solve and do for you. 2nd round technical interview with members of the team was set - but one was ready to hire and as my preferred position all 3 offered positions. Formal offer process is very very slow with very singular very unresponsive offshore recruiting automatons and the managers can do little to intervene.