Current professional interests

My professional interests have changed somewhat since 2016. (My personal interests are mostly the same.)

Since 2016, I have worked at two different companies:

• ReactiveCore — SaaS for data transformation at scale. Using OWL/RDF ontologies and schemas, OPS-5 rules (“Reactive Rules”), Scala + Spark (backend), and Jupyter + Python (frontend)
• dv01 — SaaS for data services connecting lenders and buyers of securitizations for multiple asset classes, including mortgages (MBS), solar/home efficiency, line of credit, and auto. Using Scala + Spark (backend), Google Cloud Platform, BigQuery

Continuing my earlier work, I am currently most interested in the following core technologies:

• Semantic Web and linked data: Knowledge Graphs (KGs), OWL/RDF, graph databases, SPARQL
• Rules-based systems for forward-chaining (RETE) and backward-chaining (Prolog, Datalog)
• Distributed cloud-based systems based on micro-services
• Relational databases (SQL), data warehouses, data lakes
• DataBricks for end-to-end capabilities