Senior iOS EngineerHybrid - LondonUp to £80k basicAn exciting opportunity for a Senior iOS Engineer to join a fast-moving tech company building data-driven mobile products at scale. This is a highly regarded engineering environment where people are trusted to take ownership, solve real-world problems, and move quickly with purpose.As a Senior iOS Engineer, you''ll play a key role in shaping and scaling a sophisticated native iOS app used by tens of thousands of customers. You''ll work across two core areas - the flagship customer-facing app and a native SDK that powers Real Time, on-device data collection. The role blends deep technical engineering with a product mindset and a strong focus on performance, usability, and scale.This is a senior-level role where you''ll help define architecture, influence product direction, and mentor others in the team. You''ll work closely with Back End and data engineers in cross-functional squads, and have the freedom to experiment with new tools - including AI - to improve your own productivity and the quality of the codebase.Senior iOS Engineer - Key Requirements:Significant previous experience building native iOS applications in SwiftExperience with modern iOS tooling, eg SwitfUI, UIKit, CoreData, Clean Architecture, MVVM, Dependency Injection, etc.Proven experience building scalable SDKs for third-party useStrong understanding of software architecture and design patternsAbility to write high-performance, maintainable code and optimise fo