Lai Wei, et al, show how to build a neural network in Keras 2 using MXNet as the engine:
Distributed training with Keras 2 and MXNet
This article shows how to install Keras-MXNet and demonstrates how to train a CNN and an RNN. If you tried distributed training with other deep learning engines before, you know that it can be tedious and difficult. Let us show you what it’s like now, with Keras-MXNet.
Installation is only a few steps
Deploy an AWS Deep Learning AMI
The Deep Learning AMI is already set up for trial, so it should be easy to follow along.