Case Study: InteRES achieves scalable, high-performance delivery of billions of airline offers with Amazon Web Services

InteRES - Customer Case Study

InteRES, a Darmstadt-based software firm founded in 1997, builds booking and pricing systems for airlines and travel companies. To commercialize its new Airline Solutions unit it developed the InteRES Retail Engine — an Offer and Order Management System built to IATA NDC and ONE Order standards that generates personalized flight offers by aggregating multiple data sources. The challenge was extreme scale and low latency: a mid-size airline scenario required hundreds of offers per second (up to 2,220/sec for larger carriers) with reply times under two seconds, so the solution had to be highly flexible, scalable and cloud-native.

InteRES implemented the Retail Engine on AWS using a multi‑AZ VPC with auto‑scaling EC2 Spot Fleets, an application load balancer, S3‑hosted Admin GUI and repositories, and automated dev environments via CloudFormation and Lambda. This architecture delivered the needed scalability, resilience and regional data controls while reducing development costs through spot instances and on‑demand provisioning. The result is a production-ready, secure platform that supports pilots and planned rollouts, lets InteRES transparently pass infrastructure costs to customers, and meets the performance, dependability and future-proofing requirements of modern airlines.

InteRES

Alexander von Bernstorff

Director Airline Solutions