I use and highly recommend hexo.io with it's S3 deployment plugin. It's as good as Jekyll but easier to modify and theme if you come from a web dev background as it's written in NodeJS rather than Ruby.
Er, are you implying that Ruby is not a language for people with a web development background?
Regardless, most of Jekyll tweaking is done with Liquid templates, which are mostly agnostic. (You do use Ruby for plugins, yes, but they are not super important.)
Here's my review of migrating to hexo http://www.primaryobjects.com/2015/12/15/a-tale-of-migrating...
I recently converted my wordpress blog to hexo and blogged about it, if you're interested:
The other nice thing about SSGs is emitting modern output (minified, etc). What comes out of wordpress is a horror show...