Rafal has been with Amazon for 5 years working on speech synthesis systems that power a wide range of Amazon products and services, including Amazon Fire tablets, Kindle Readers and Amazon Alexa. He works on application of Deep Learning and signal processing techniques for prosody modeling of Speech Synthesis and NLP.

Prior to Amazon, Rafal held a variety of technical and leadership positions at companies such as General Electric and Lufthansa, working on technologies ranging from flight planning systems to video compression and analysis systems.