IAG Loyalty (IAGL) is in the business of turning everyday moments into extraordinary experiences. Recognising that travel isn’t just a luxury, it creates lasting memories - IAG Loyalty built Avios, the loyalty currency that turns everyday spending into extraordinary experiences.

IAG Loyalty is central to IAG’s airline and partner loyalty ecosystem, connecting customers with airlines such as British Airways, Iberia, Aer Lingus, Vueling, and Qatar Airways. Beyond flight bookings, it offers customers the chance to earn and redeem Avios through everyday purchases, co-branded credit cards, and a wide network of retail partners.

Understanding that loyalty is built on value, convenience, and meaningful experiences, IAG Loyalty created the Avios mobile app to put this power directly into customers’ hands. It delivers the ultimate convenience, empowering customers to design their perfect getaway, using Avios for flights, accommodation, transport, and unforgettable adventures, all from the device they carry every day.

We weren't just offering technology; we were providing a pathway to continuous evolution of the mobile app.

This wasn't about a disruptive overhaul; it was about smart, sustainable change, delivered collaboratively. We worked side-by-side with IAGL's cross-functional teams to:

1. Forge a pragmatic strategy: We introduced a phased approach to breaking down the monolith, carefully aligning it with IAGL's product goals and release rhythm.

2. Create architectural blueprints: We applied domain-driven design to create clear boundaries between services, paving the way for independent, adaptable systems.

3. Empower engineering teams: By embedding ourselves within IAGL's squads, we shared our knowledge, equipping their engineers to confidently build with new architectural patterns.

4. Establish robust foundations: We created reusable templates for essential services like logging (telemetry), security (authentication), and configuration, eliminating repetitive work and ensuring consistency across teams.

5. Illuminate the system: We focused on improving documentation and observability, giving engineers and stakeholders the clarity they needed to operate with confidence.

6. Enable ‘in-flight’ modernisation: We seamlessly integrated the work of modularising the platform into the ongoing delivery of new features, ensuring that the bi-weekly release cycle remained a constant.

The result was a powerful combination: IAGL's ambition for a modern, adaptable platform, fuelled by our expertise in making that vision a reality, all while maintaining the crucial rhythm of continuous delivery.