Principal Software Engineer - Customer Retention (16842)We've landed! When it comes to innovation and achievement, there are few organisations with a better track record. Join us as we embark on an ambitious journey, evolving our digital commerce platforms and building scalable, resilient, and innovative foundations that enable seamless customer experiences across web, mobile, and connected channels.
Finding brilliant tech talent is vital to the future of easyJet. With opportunities to work across the technology that powers our app, website, and other digital touchpoints, you'll help connect over 100 million customers to thousands of their favourite destinations!
Located in the One Parc Central building in Sant Martí, with hybrid working available, we're looking to connect with Product, UX, and Software Development professionals who share our passion for making an impact and helping people all over Europe Get Out There. Apply now and be a part of easyJet's first digital hub, in the heart of Barcelona!
easyJet is building a new customer retention programme designed to enhance customer engagement, reward repeat spends and create new commercial opportunities.
As a Principal Software Engineer within the eCommerce Customer Retention team, you will provide leadership and technical stewardship across multiple squads within a defined Mission. You will be responsible for the overall design and accountable for upholding engineering standards, ensuring the delivery of robust, secure, scalable, and high-performance systems. Your role will involve guiding teams towards technical excellence, fostering a culture of continuous improvement, and driving high performance across all aspects of software development.
Working closely with Product Managers, Agile Delivery Managers, Enterprise Architects, and the Chapter Lead for Software Engineering, you will ensure engineering standards are upheld, guide complex technical solutions, and align strategy, approach, and principles across the Mission. By championing best practices, modern architectures, and innovation, you will build solid foundations for a retention programme spanning easyjet.com, our mobile app and easyJet Holidays.
What you'll be doing
Own the Mission technical vision, strategy, and roadmap, ensuring alignment with business objectives and platform standards
Take accountability for the technical delivery and execution of the technical vision and strategy across multiple squads within a Mission, ensuring alignment with objectives and platform standards
Foster a high-performance culture within squads, promoting collaboration, accountability, and continuous improvement
Work in partnership with Product Managers to define outcomes and priorities for squads, while maintaining platform integrity and architectural excellence
Lead the design, architecture, and development of scalable, reliable, and high-performance software systems, including system design, technology selection, and overall architecture
Collaborate closely with Agile Delivery Managers, Lead Software Engineers, QE Leads, and Senior Technology Managers to align technical direction, project scope, and roadmaps with Mission objectives
Own the delivery of key product features, ensuring they meet performance, security, and scalability requirements
Ensure the quality of code delivered across squads, ensuring adherence to best practices and engineering standards
Actively contribute to and lead code reviews, providing constructive feedback to continuously improve code quality and team capability
Utilise metrics and feedback loops to monitor team performance, identify areas for improvement, and drive the continuous development of high-performing engineering teams
Mentor and provide guidance to junior and mid-level engineers, fostering a culture of continuous learning and improvement
Stay informed of industry trends, emerging technologies, and methodologies, applying insights to improve software development practices and platform capabilities
Requirements of the RoleWhat you'll bring to the team
Ability to link technical strategy and architectural decisions to measurable outcomes, including feature performance, platform reliability, and customer impact
Extensive software engineering experience with proven capability to lead complex projects and collaborate across cross-functional teams.
Proven experience integrating SaaS platforms into complex technology environments, and the ability to work closely with external technology partners and vendors to achieve business outcomes
Strong proficiency in one or more programming languages and modern software development frameworks such as C#, Typescript and NodeJS
Demonstrated expertise in cloud platforms (including AWS), with a strong understanding of cloud well-architected pillars such as security, reliability, performance efficiency, cost optimisation, and operational excellence
Deep knowledge of modern design patterns and architectures, including APIs, event-driven architectures (EDA), microapps, front-end frameworks, and app technologies, with experience applying these in eCommerce environments
Familiar with integrating customer retention platforms, MarTech ecosystems or personalisation engines
Experience using measures such as DORA metrics, release frequency, incident response, and system recovery to drive delivery improvements
Extensive experience in observability, leveraging tools for monitoring metrics, telemetry, alerts, and logs to ensure system reliability and performance
Ability to coordinate multiple squads, manage dependencies, and align delivery across Missions
Proven ability to embed robust security and compliance controls by working closely with Security Architects and InfoSec teams, ensuring alignment with organisational standards and regulatory requirements
Experience within large-scale eCommerce or high-transaction technology environments is advantageous
Familiarity with modern CIAM solutions and standards (e.g., OAuth2, OpenID Connect, SAML) to ensure secure and seamless customer authentication and authorisation across platforms.
What we can offer you
Up to 20% bonus
25 days holiday
BAYE, SAYE & Performance share schemes
Life Assurance
Flexible benefits package
(Work Away) enabling you to work abroad for up to 30 working days per year.
Excellent staff travel benefits
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