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.)
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...
Here's my review of migrating to hexo http://www.primaryobjects.com/2015/12/15/a-tale-of-migrating...