Who we are
About Xari
Engineers who build AI-native applications and connected products from PCB to cloud, and who have trained, consulted and built on DevExpress XAF for over a decade.
Built by people who care about the craft
Xari is a team of engineers, consultants, trainers, and builders with deep experience across AI, electronics, firmware, mobile, cloud, .NET and DevExpress XAF. We work closely with clients, share knowledge generously, and bring the same engineering discipline to training, consulting, and development work.

Leadership
Engineers first, and still hands-on.

Jose Javier Columbie
Jose holds a Master's in Electrical Engineering and is a .NET architect and Microsoft MVP. He leads Xari's training, consulting, and Azure enterprise development, with a deep focus on performance, data access, and application design — and DevExpress XAF and XPO at the heart of almost everything he builds, across desktop, web, and mobile. A frequent speaker and blogger, he's a tireless advocate for the XAF community.

Joche Ojeda
Joche is a DevExpress MVP who has worked with XAF and XPO since their earliest days, starting with XPO back in 2005. As a lead developer he evaluated frameworks to build a unified ERP and, when XAF arrived, was hooked. He remains a dedicated XPO advocate, using it across ASP.NET MVC and Core, Xamarin, and more recently the Uno Platform.
What we do
Xari is a software and product engineering company. We build AI-native applications that run on cloud or local models, and complete connected products end to end: electronics, firmware, mobile, web, cloud and security. We are also long-time DevExpress XAF specialists, training teams, consulting on the tough problems and building line-of-business apps on the framework. Across all of it we bring the same engineering discipline and one simple goal — clients who feel supported, productive, and glad they chose us.
Global reach
Xari's clients and students span the globe, and we work with them in English and Spanish.


