Serko, the travel and expense management provider, has named Matt Weaver as head of data. He brings over 10 years of data and analytics experience, most recently leading Booking.com’s central marketing experimentation group.

Accelya, an airline distribution technology provider, has moved Gianni Cataldo from chief technology officer to chief product officer; and promoted Tye Radcliffe to chief customer success officer from his previous role as senior vice president-product strategy, order group. In addition, Alastair Pooley joined the company in August in the new role of chief information officer.

Synergy Global Housing (Synergy), a serviced accommodation program management provider, announced the appointment of Aaron Turner as chief technology officer. Prior to joining Synergy, Turner served as CTO for BridgeStreet Global Hospitality, where he led the development of the Stay Accommodation platform, serving over 5,000 clients and 62,000 users with access to over 16.5 million global accommodations. His additional technology experience includes roles as CTO for digital commerce solution provider Brandshop, and head of delivery operations and technology for eBay.