Scripts and instructions for interacting w/ AWS IoT and RPI Sense Hat module via MQTT and Python.
A movie ratings API that's backed by Ratpack, Mongo, Redis via RxJava on Heroku which integrates with the OMDB API.
A "geo near" performance test project w/ ratpack as app backend shuttling queries to various data stores; mongo, redis, rethink, elasticsearch, etc...
FDA National Drug Registry REST service built atop Ratpack, RxMongo hosted at Heroku.
Cable modem stats, logs scraper and DynamoDB time series persistence.