As Principal Software Engineer in the eCommerce Platform Delivery team, you lead and shape technical strategy across multiple squads to deliver robust, secure, and scalable systems. You guide architecture and engineering standards, promoting continuous improvement and high performance. You work with product managers and architects to align technical decisions with business goals and drive customer-facing features. You stay ahead on trends to keep the platform resilient and future-ready.
Pay / Benefits
Competitive base salary
Up to 20% bonus
25 days holiday
BAYE, SAYE & Performance share schemes
7% pension
Life Assurance`,`Flexible benefits package`,`Excellent staff travel benefits
Responsibilities
Own the Mission technical vision, strategy, and roadmap aligned with business objectives and platform standards
Accountable for technical delivery across multiple squads
Lead design, architecture, and development of scalable, reliable, high-performance systems
Champion data integrity and performance for scalability and resilience
Deliver key product features meeting performance, security, and scalability requirements
Ensure code quality across squads and lead code reviews
Use metrics to monitor performance and drive continuous team improvement
Mentor junior and mid-level engineers and foster continuous learning
Stay informed on industry trends and apply insights to improve practices and capabilities
Key requirements
Ability to link technical strategy and architectural decisions to measurable outcomes
Deep knowledge of SQL, databases, data modelling, and performance optimisation
Proven expertise in cloud and commerce technologies, including AWS
Strong background in Microsoft technologies, including C# .NET
Extensive experience in observability and monitoring for reliability and performance
Expertise in data architecture and modelling, with legacy systems experience
Proven experience designing and implementing event-driven architectures (EDA)
Strong knowledge of infrastructure and networking for secure, high-performance distributed systems
Extensive software engineering leadership across cross-functional teams
Strong understanding of modern design patterns and architectures (APIs, EDA, microapps, front-end frameworks) in eCommerce
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