Python. Flask. Bootstrap. Docker swarm. Digital ocean. And my own little cli that I modeled after ember cli to generate code in a clean architecture style as recommended by uncle Bob. S3 for storing images and other static stuff. DB gets swapped around as and how I need. Sometimes I might need document based content (product information storage) so for just that information I'll swap in a nosql db. Most of the time I use Maria db
Clojure+Datomic+CLJS (currently learning how to use Om Next + I just discovered Untangled which solves most of the full-stack problem using Clojure, Datomic, and Om(next). https://github.com/untangled-web
Cloud Foundry + Spring Boot + Angular or React with Concourse/Docker for CI.
C# and Winforms, though that is slowly changing to C# and XAML