GuestCentric is a leading provider of cloud-based digital marketing software and services that help extraordinary hoteliers promote their brand, drive direct bookings and connect with customers on all digital platforms. GuestCentric's all-in-one platform provides hotels with the only unified solution for managing their guests’ online journey: award-winning, high impact websites; an integrated, easy-to-use booking engine; social media marketing and publishing tools; a GDS chain code and a channel manager to offer rooms on Amadeus, Booking.com, Expedia, Galileo, Google, Sabre, TripAdvisor and hundreds of other channels.

Apache Kafka is a distributed event store and stream-processing platform. It is an open-source system developed by the Apache Software Foundation written in Java and Scala. The project aims to provide a unified, high-throughput, low-latency platform for handling real-time data feeds. Kafka can connect to external systems (for data import/export) via Kafka Connect, and provides the Kafka Streams libraries for stream processing applications.