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Senior Software Engineer
Who we are 🌍
We're IAG Loyalty - one organisation with two ambitious, growing divisions across Loyalty and Holidays. Each has its own goals, strategy and team, but together we're united by a shared vision to create a more rewarding world of travel and experiences. Our Loyalty division is home to Avios, the global loyalty currency, enabling millions of members to collect and spend rewards across travel, retail and financial services. We're on an exciting journey of growth and transformation – we're going places.
The opportunity ✨
We're looking for a Senior Software Engineer to help shape one of the most critical platforms within IAG Loyalty. You'll join the team responsible for our Pricing Service — the engine that powers reward pricing across multiple airlines, partners, products and propositions. Every day, millions of customers rely on this service to redeem their Avios seamlessly, making this a genuinely high-impact engineering role. This is an opportunity to build scalable cloud-native solutions using Java, Spring Boot and AWS, influence technical direction, mentor fellow engineers and contribute to the future evolution of our platform.
What you'll be doing 🚀
You'll own the delivery of backend features from design through to production, developing resilient, scalable services that support millions of redemption requests across our global loyalty ecosystem. Working within a collaborative product engineering team, you'll build modern microservices using Java Spring Boot, AWS and Infrastructure as Code, while ensuring high standards of testing, security and operational excellence. You'll contribute to architectural discussions, improve engineering practices, mentor junior developers through code reviews and pair programming, and help the team continuously improve how we build and deliver software. Working closely with Product Managers, engineers and partner teams across British Airways, Iberia, Aer Lingus and the wider IAG group, you'll help translate business priorities into high-quality technical solutions that improve customer experience and commercial performance. As part of a shared on-call rota, you'll also help support a critical customer-facing service, ensuring reliability and rapid incident resolution.
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What we need from you ⚡
- Strong experience developing backend applications using Java, Spring Boot and AWS
- Experience building cloud-native solutions and managing infrastructure with Terraform
- Knowledge of CI/CD, automated testing and engineering best practices
- Ability to build secure, scalable APIs and troubleshoot complex distributed systems
- Passion for writing clean, high-quality code with a focus on performance and reliability
- Strong communication and collaboration skills, with experience mentoring other engineers
- Comfortable working in Agile teams and embracing continuous improvement
Desirable:
- Experience with AI-assisted development tools
- Familiarity with observability tools (e.g. DataDog or SonarCloud), business rules engines, or loyalty and travel platforms
We might not be right for you if:
- You only want to focus on your own work; we're a collaborative, high-performing team who support one another.
- You value perfection over fast learning and continuous delivery.
- You're looking to design solutions but not own their implementation through to production.
If you think you have what it takes but don't meet every requirement, we'd still love to hear from you.
The Blend 📍
This role is part of our Loyalty Division and is based from our London office. We call our hybrid working approach The Blend — giving you the flexibility to choose where you do your best work whilst staying connected with your team. Typically, you'll spend at least two days each week in the office, with flexibility to work from home for the remainder.
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Diversity and Inclusion
Our vision is to create a more rewarding world of travel and experiences. Delivering that requires diverse thinking and inclusive leadership. We are committed to building a workplace where people feel they belong and are valued for their perspective. Inclusion drives better decisions, stronger performance and more innovative outcomes. We actively encourage applications from people with different experiences and backgrounds, and are committed to ensuring our recruitment process is fair, inclusive and accessible.
At IAG Loyalty we boast two ambitious and growing divisions in Loyalty and Holidays, and together we create a more rewarding world of travel and experiences. Through Avios, our global loyalty currency, we help millions of members turn everyday spend into travel, retail and financial service rewards. And through our Holidays division, including British Airways Holidays and Iberia Vacaciones, we connect customers to thousands of destinations worldwide with seamless, end-to-end travel experiences.
It’s all made possible by our teams, bringing together data, expertise and innovation to power unforgettable journeys and experiences.
And in return? A one-of-a-kind culture where a love of travel connects us all. A business that's going places, and careers that are, too.
If that sounds like the kind of place you’d like to be, find out more and join our team! Together we're creating a more rewarding world of travel and experiences
This is our vision, it gives us direction in where we're heading and our values show us how we'll get there.
Our values outline how we show up when we're firing on all cylinders. From our Contact Centre to Madrid and Head Office colleagues, they outline the expectations we have for each other and what it means to work in our Club.
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