Principal Software Engineer

  • Full-time
  • Contract Type: Permanent
  • Directorate: IAG Ai

Company Description

IAG Transform is a part of International Airlines Group (IAG).

IAG is one of the world’s largest airline groups with 600+ aircraft carrying more than 122 million customers to 260 destinations across 91 countries each year.

IAG brings together leading airline brands Aer Lingus, British Airways, Iberia, Level, Vueling. These are supported by IAG Loyalty that spans all its airlines and beyond, offering the global currency Avios and including BA Holidays, and IAG Cargo which delivers vital goods and produce around the world. These businesses are complementary to its core airline businesses.

As the first airline group globally to commit to net zero by 2050, sustainability is a core part of IAG’s strategy.

IAG Transform plays a critical role in driving transformation across IAG and the aviation industry, through expertise and capabilities in procurement, technology, AI, innovation, and transformation.

We are based in London, UK, with a presence in Dublin, Madrid, Barcelona and Kraków.

With us, your work will create real impact, from everyday improvements to breakthrough change that reshapes the way the world flies.

Job Description

This is a critical role in delivering foundational software solutions that empower AI teams and accelerate business value, without compromising safety or quality. As well as leading by example as a hands-on software engineer, you will guide the team by defining and implementing the optimal technical approaches for building, onboarding, securing, monitoring, and generating insights from our tools and products. This role will help enhance and build our bespoke Engineering Metrics Platform, that will be used across IAG Software Engineering to drive operational efficiencies, enable data-driven decision-making, and uphold engineering standards across the technical teams. 

Qualifications

Essential Skills

  • Cloud-scale architecture: Designed and operated decentralised systems on AWS, enforcing modern development best practices. 
  • Technical leadership: Influenced engineering strategy and mentored multiple squads to higher standards. 
  • Full-stack coding & IaC: Advanced in TypeScript, Python, GitHub, GitHub Actions and Terraform. 
  • DevSecOps enablement: Integrated tools, such as SonarQube Cloud, Snyk and GitHub Advanced Security, into CI/CD pipelines. 
  • Developer-experience champion: Deep understanding of tooling friction points and how to remove them. 
  • Agile delivery: Drives continuous improvement in fast-paced, agile/DevSecOps environments. 
  • Stakeholder mastery: Balances business priorities with technical excellence and clear communication. 
  • Best-practice evangelist: Sets, documents and enforces development standards across distributed teams. 
  • Hands-on practitioner and mentor: Delivers results through direct contribution and fostering continuous learning among junior engineers. 
  • Change resilience: Excels in fast-paced, high-change environments and remains composed under pressure. 
  • AI-first developer: Expert in the use of AI tools for software development, evangelises the responsible use of AI in daily work.  
  • Strong relationship-builder: Enjoys working in a hybrid working environment, to foster close teamwork, accelerate knowledge sharing, and strengthen cross-functional relationships. 

Desirable Skills 

  • Data-driven dashboards: Experience building Power BI reports and data models on AWS-hosted databases is highly desirable, or willing to learn. 
  • Platform tooling guru: Deep knowledge of GitHub feature set (auth, apps, policies) and experience shipping reusable developer toolkits. 
  • Multi-cloud fluency: Working knowledge of Azure services and integration patterns. 

Additional Information

Education 
Educated to degree level in Computer Science / technical degree or equivalent industry experience. 

Benefits 
IAG Transform offers the chance to enjoy a challenging career in an exciting, fast-moving environment in a dynamic industry, working in a multi-cultural environment with a strong partnership between the Barcelona and London Digital Innovation Hubs. We aim to provide a good work/life balance, as well as the many benefits offered by a global organisation, including health insurance, pension, and performance bonuses.  

The work is a hybrid role, with 3 days a week expected in our office in Paddington, with some travel to Waterside, near Heathrow. This role may also require travel and working from multiple sites/locations.  

Diversity and Inclusion 
Diversity and inclusion and our people are at the heart of everything we do. We recognise that we can only deliver the required business outcomes if we have a thriving community of technology professionals. Together we strive to become the very best at what we do. 

We focus on making Tech a great place to work, with a community that we feel proud to belong to. To help make this a reality, our people strategy focuses on six key domains: Engagement, Talent Management, Reward and Recognition, Performance Management, Learning and Development and Culture.  

We understand the importance of Diversity and Inclusion in the workplace to deliver this strategy – everyone should feel part of our team. We want to foster an inclusive workplace, celebrate individuality and embrace differences so that everyone in IAG Tech can achieve their goals and ambitions, regardless of their personal circumstances or background.  

As a Group, IAG has an ambition that 40% of senior management roles are held by women by 2025. IAG Tech fully supports that ambition, and we are working to help make it a reality. With this in mind, we have set ourselves the challenging target of recruiting 50% female colleagues by 2030. 

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