I worked with an amazing mentor at an E-Commerce startup. He solely built an entire platform which helped us build small micro applications which can just focus on the simple problem each micro app was trying to solve.

He was brilliant, exceptional & had an enormous amount of empathy & compassion to fellow people. Always smiling to people whoever came for help. When you go to him and have a chat(even a casual one), you will come out motivated.

Most important thing which I will always remember is he understood that all people were not brilliant like him & gave them the time & ideas needed to solve a problem they were given. When I couldn't do it by then, he calmly used to ask if I needed any help or was stuck at some point. That was such an amazing experience which has transformed my outlook on how to get things done by doing only the minimum amount of effort required.

I will end with a simple statement which I still cherish & follow:
Don't look to fix problems that happen all the way. Fix one problem at the source.

This was targeted towards data pipeline related problems. But, yeah, it was applicable in far more places. I would

The best bosses I've had/have are the ones that take time to listen to me when I need it, and step back and let me do my thing when the time comes. And finally, they push me to expand and improve whilst keeping me within my attainable goals and successes.