WPP ET is undergoing a significant transformation to modernise ways of working and adopt cloud-based, micro-service architectures, automation, and digitised user experiences. Within this transition, the Lead Developer plays a strategic engineering role in the Chase Media Central programme, ensuring the platform’s custom extensions, integrations, data flows, and application components are built to enterprise standards and remain stable as the programme scales across regions. This is a hands-on technical leadership role: you provide architectural direction for integration patterns, lead development work, guide developers through complex technical problems, and define coding standards and engineering best practices. You act as the technical authority for integrations and platform components, ensuring that all custom code interacting with Business Central, local applications, and market-specific systems is reliable, scalable, and maintainable. You work closely with Product, QA, Implementation, Data, BI, and market teams to ensure code, interfaces, and workflows align with business requirements while maintaining high engineering quality. You will also contribute to requirement refinement, solution design, technical documentation, code reviews, and production troubleshooting. Success in this role is defined by strong engineering output, predictable delivery, high-quality integrations and application components, well-supported developers, and trust from product and market stakeholders.