Top IoS Developer Jobs in London

Build and maintain polished native iOS experiences for Wise Account users. Collaborate with product, design, analytics, and engineering teams to deliver scalable, customer-focused features across mobile and web. Own the health, quality, performance, stability, and maintainability of the iOS project while applying modern technologies, architectural patterns, testing practices, and cross-platform consistency.

Build and ship production iOS features for AI-powered travel and expense experiences. Design conversational and context-aware UX, architect Swift-first applications using modern concurrency and SwiftUI, integrate networking and LLM capabilities, and support offline functionality, notifications, analytics, experimentation, and privacy. Collaborate with product, design, and backend teams while maintaining high-quality, tested code.

Lead iOS platform engineering for Personal Investing, owning the SDLC toolchain, CI/CD pipelines, release processes, architecture, shared app layers, and developer experience. Drive automation, platform modernization, security controls, incident resolution, and adoption of new technologies. Mentor engineers, review code, support technical escalations, and collaborate across Engineering, Security, Product, Operations, and partner teams in a regulated fintech environment.

Design, build, and maintain high-quality iOS applications using modern Apple technologies. Own features end-to-end, collaborate with product, design, and backend teams, write clean testable code, debug and improve performance, and contribute to architecture and best practices.

Develop and enhance iOS SDKs for document capture, including camera capabilities, image processing, accessibility, and scalable user experiences. Design performant and resilient solutions using Swift, integrate APIs and libraries, support multiple devices, and improve test automation and CI/CD pipelines. Collaborate with product designers, managers, and engineers in an agile environment while contributing to continuous improvement and psychological safety.

Drive technical direction for the iOS mobile team by designing, building, testing, and maintaining secure, scalable applications. Collaborate with product, design, and backend teams; provide mentorship and code reviews; improve CI/CD and development practices; evaluate emerging iOS technologies; and use spec-driven development and AI coding tools while maintaining strong quality and security standards.

Develop and contribute to Trade Republic’s iOS application using Swift, SwiftUI, UIKit, reactive programming, MVVM-C, and dependency injection. Responsibilities include contributing to the iOS guild, mentoring engineers, owning product development, collaborating with designers and cross-functional teams, and ensuring high-quality code, user experience, and delivery in an agile environment.

Build and ship iOS features in Swift, writing simple, robust, testable code for Plum’s financial platform. Collaborate with product managers, designers, and engineers; measure and iterate on App Store releases; take ownership of product outcomes; and mentor junior engineers. The role also involves continuous integration, automation, backend technologies, SwiftUI, The Composable Architecture, Combine, async/await, and end-to-end testing.

Build and ship features for ElevenLabs’ iOS Creative App, integrating AI-driven audio models for millions of users. Own app performance, quality, responsiveness, architecture, and technical direction while collaborating with design, product, and research teams. Run A/B tests and use experimental data to guide product decisions. The role may also involve audio playback or streaming and mobile build, testing, and release infrastructure.

Build and maintain iOS payment experiences for wallet balances, checkout, withdrawals, refunds, seller onboarding, and tax capture. Contribute to migrating payment surfaces from UIKit to SwiftUI, write automated tests, handle complex state and edge cases, and own features end to end. Collaborate with backend engineering, product, design, and senior engineers while supporting globally compliant marketplace payment flows.

Build and maintain native iOS apps for 3D visualization, measurements, and AI-assisted workflows. Implement and optimize UI components, integrate backend APIs and real-time pipelines, write testable Swift code, participate in architecture and code reviews, and troubleshoot performance and device-specific issues while working remotely within EU timezones.

Build and maintain scalable iOS applications for ASOS customers worldwide. Develop high-quality, tested features using Swift and modern iOS technologies, collaborate with product, design, and engineering teams, and contribute to application quality, performance, accessibility, maintainability, and platform evolution. The role involves working in agile teams, supporting technical discussions, improving engineering practices, and developing experiences across iPhone and iPad.

Build and ship native iOS features for an AI neobank, owning onboarding, accounts, cards, payments, transfers and AI-assisted journeys. Ensure app quality, performance, reliability, integrate APIs and authentication, collaborate with product, design, backend and AI teams, and iterate using analytics and production feedback.

Build and deliver high-quality iOS experiences used by millions of customers. Develop scalable features with Swift and modern iOS technologies, collaborate with product and design teams, contribute to architecture and technical decisions, improve platform reliability and maintainability, mentor engineers, and use experimentation and customer insights to enhance the app experience.

Build and improve Zopa’s native iOS banking app within the Mobile Platform team. Responsibilities include developing customer-facing features with Swift, improving app performance and reliability, resolving bugs, contributing to shared architecture and developer tooling, and collaborating with Product, Design, Backend, React Native, and other iOS engineers. The role also involves promoting engineering standards, testing, accessibility, observability, and maintainable mobile development practices.

Build and own Nevis’s native iOS and iPadOS app from architecture through App Store release. Collaborate with design, backend, and AI teams to create polished, responsive, secure, accessible, and offline-capable experiences for financial data and streaming AI workflows. Own performance, networking, testing, observability, crash-free quality, provisioning, phased rollouts, and release processes while rapidly prototyping and iterating on product experiences.

As an iOS Developer, you will focus on building iOS applications, participating in code reviews, testing, and collaborating with the development team.

Develop and maintain iOS mobile applications and frontend experiences while contributing to backend services powering mobile network management, device control, and AI-driven safeguarding. Collaborate on architecture, scalability, security, and product direction; deploy, optimize, test, and rapidly iterate features across care, schools, and parent products. Engage directly with users and take ownership from concept through production delivery.

The Software Engineer in Test will design and maintain automated UI test frameworks for iOS applications, promote quality practices, and collaborate with various teams to enhance application quality throughout the delivery lifecycle.

The iOS Engineer will enhance customer experiences on ASOS apps, deliver quality features, work with designers, and maintain codebase integrity.

Build and maintain production-grade iOS applications using Swift and SwiftUI, integrating AI through backend APIs. Design reliable AI interaction patterns, optimize performance and memory, support concurrency and background tasks, capture user feedback, and collaborate with backend and machine learning engineers. Maintain App Store quality, monitor production issues, and deliver responsive, stable, and efficient user experiences.

Join the Baldur squad to design and build Spotify's delegated authorization and session management systems. Develop secure, cross-platform C++ libraries and native iOS Swift components for token issuance, refresh, revocation, and on-device credential storage, collaborating with client and backend teams to scale OAuth 2.0 infrastructure used by millions.

The Senior Staff Android Engineer will own and evolve the Android platform, lead system design, and mentor engineers to improve mobile architecture and workflows at AlphaSense.

Own the React Native application end to end, including architecture, performance, releases, app-store presence, and roadmap. Lead and mentor two mobile engineers, establish technical direction, and collaborate on engineering and product strategy. Deliver polished iOS and Android experiences, run experiments, measure growth and retention impact, and iterate rapidly. The role may help expand the mobile team as the app grows.

Develop and maintain Billetto's iOS consumer and organiser apps. Build native Objective-C features, custom UI components and animations, integrate REST APIs and analytics, use third-party SDKs, and collaborate within an agile startup team to ship App Store releases.