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As a Senior iOS Engineer, you'll develop and enhance iOS applications, collaborate with designers, ensure code quality, and maintain user experience.

Design, implement and productionise large‑scale deep learning models for outfit discovery and causal pricing/targeting. Deploy batch and online models, build scalable data pipelines and MLOps practices, mentor junior engineers, and drive ML standards and technical direction across the team.

Build and maintain high-quality, scalable iOS applications using Swift and core iOS frameworks. Collaborate with product, design, and engineering to deliver performant, accessible experiences across iPhone and iPad. Contribute to architecture, testing, code quality, and platform evolution within agile cross-functional teams.

Build and maintain analytics and experimentation instrumentation for ASOS iPhone and iPad apps. Implement event tracking, integrate SDKs (e.g., Optimizely), ensure schema conformity, investigate and fix data quality issues, support experimentation and monitoring, review peer contributions, and maintain testable, reliable code for scalable mobile analytics.

The role involves designing and running machine learning systems for personalisation in fashion retail, collaborating with teams to improve algorithms and mentoring junior members.

Lead design, configuration, and long-term ownership of Dynamics 365 Supply Chain modules. Support data migration, integrations, testing (SIT/UAT), and process optimisation using Power Platform and AI. Manage stakeholders and functional resources, provide training, maintain documentation, and ensure alignment with Finance and Tech teams.

Lead trend-driven Jersey design across tops, dresses and bottoms. Create seasonal concepts, mood boards and ranges; drive hero pieces and speed-to-market opportunities. Use customer insight, sales and competitor analysis to inform decisions. Collaborate with Buying, Merchandising, Technical and Sourcing; present to senior stakeholders. Mentor junior designers and build supplier relationships to innovate in fabric, wash, print and construction.

Design and own end-to-end native Android experiences, partnering with cross-functional teams. Apply deep Android platform craft (Material 3, Compose), prototype in Figma and on-device, drive reusable patterns, champion accessibility (TalkBack, touch targets), use research and data to iterate, and leverage AI tools to enhance design and delivery.

Lead the CRM product vision and roadmap to deliver personalised, data-driven customer communications. Own strategy, experimentation, measurement, and cross-functional delivery to improve engagement, loyalty and lifetime value. Partner with design, engineering, marketing and analytics to build mobile-first, personalised experiences and maintain an always-on testing environment using data and A/B testing to validate impact.

Develop and maintain the ASOS Android app using Kotlin and modern Jetpack tooling. Work in cross-functional agile teams to design, implement, test (unit and UI), and deliver high-quality features, contribute to architecture and modularisation, and collaborate with design to ensure platform-consistent UI.