Team

Jon Pither

CEO

• GitHub

Jon has led projects at Tier-1 Investment Banks, an online newspaper website, a major property portal, and an international public electric bikes scheme. Although he has largely traded Emacs hacking for Zoom meetings in his role as CEO, he is still deeply in touch with XTDB's implementation.

Malcolm Sparks

CTO

• GitHub

With over 40 years of applied Computer Science experience, Malcolm cut his teeth on the ZX81. He has a long history of building database systems and services. In his early years, he worked with SQLWindows, Oracle Forms, and Oracle CASE tools. After that, he even spent a few years as an Oracle DBA. Malcolm's thinking and experience has had a profound effect on XTDB's design and ethos. He is responsible for the open source Site Project, a resource server extension to XTDB.

Kath Read

CFO

• GitHub

Kath ensures the longevity of XTDB. The engineering team has designed a database for the 2030s. Kath has designed a financial plan to sure XTDB will still be here in 2030. After decades of financial oversight in the software industry, she provides the team with the insight required to balance an open source development model with commercial sustainability.

Jeremy Taylor

Head of Product

• GitHub

Jeremy worked in sales at IBM before finding his passion for knowledge management. With the dawn of the graph data / linked data revolution, he joined the XTDB team in 2019 to bring his vision to the world.

Steve Harris

Head of Sales

• GitHub

Steve spent years with Red Gate Software, selling SQL Server operations. He now leads the sales team at XTDB.

Steven Deobald

Scribe

• GitHub

Steven spent his early career building enterprise data management systems at ThoughtWorks. After a period building trade infrastructure systems at DRW Trading, he moved to India. There, he helped build nilenso, an employee-owned boutique software engineering consultancy specializing in Clojure, event-driven architectures, and distributed systems. He caught the bitemporal graph bug while building an open source digital library system during a sabbatical and joined XTDB in 2020.

Håkan Råberg

Head of Research

• GitHub

Håkan has spent his career leading teams and architecting distributed systems. His open source contributions are an eclectic mix of compilers, Emacs transpilers, distributed rules engines, and more. In 2017, he was given an opportunity to marry a commercial Risk System with bitemporal Datalog -- and XTDB was born. Most weeks you will find him buried under a pile of white papers.

James Henderson

Head of Engineering

• GitHub

James has spent his career building future-focused, data-oriented systems. Combining his experience with immutable architectures with his experience in event-driven architectures, he secures XTDB's real world applications. An expert in JVM languages (Clojure, Kotlin, and Java), his hobbies include creating Bridje, a statically-typed LISP for GraalVM.

Daniel Mason

Engineer

• GitHub

Dan is a Clojure expert and passionate XTDB implementer. With development experience focused in Tier-1 banks and e-commerce, he has repeatedly helped ensure that XTDB exploits cutting edge research while remaining a practical, general-purpose database.

Joe Littlejohn

Advisory Architect

• GitHub

Alex Davis

Engineer

• GitHub

Johanna Antonelli

Engineer

• GitHub

Tim Greene

Engineer

• GitHub

Alistair O'Neill

Engineer

• GitHub

Syed Fathir

Engineer

• GitHub

James Simpson

Engineer

• GitHub

John Mone

Engineer

• GitHub

You?

Engineer

• GitHub