John is a frequent speaker at conferences on various topics of expertise including on functional programming, cloud computing, computer science and software engineering.

He has over 25 years of experience writing all kinds of software - from packaged applications (Oracle Forms, Microsoft Excel, Microsoft Project); tools (BrightSword Designer); web sites, web, and cloud applications (MYOB AccountRight, Microsoft Azure Batch).

He currently works for the Microsoft Quantum Computing group and leads the effort for data platform supporting the quantum program, and is a member of the Q# Language Design Committee.