Sokolov is a Software Engineer with a diverse background, currently at Amazon building its new product search service using Lucene. He has built many search-based applications for the reference and academic publishing industry such as Oxford English Dictionary (oed.com), DeGruyter Online (https://www.degruyter.com/), and O'Reilly Safari Books (safaribooksonline.com), using a wide variety of search engine technologies, and is a contributor to the Apache Lucene  project,