Top IoS Developer Jobs in London

Build and maintain Wise's iOS Account experience as part of a cross-functional mobile team. Design, scope, and implement customer-facing features; ensure code quality, performance, scalability, and consistency across platforms; collaborate with product, design, analytics, and other engineers.

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.

Build and ship native iOS features across the full product cycle, own and evolve mobile platform infrastructure, run data-driven experiments/A-B tests, influence app architecture, and collaborate with design, product, research, and data teams to create audio AI experiences that drive engagement.

Design, build, and extend iOS features using Swift and modern architecture. Maintain high code quality and tests (80%+), collaborate across the SDLC, write technical documentation, troubleshoot issues, and introduce improvements and innovations to the product and engineering workflows.

As an iOS Engineer at Freetrade, you will develop and maintain the iOS app, collaborate with cross-functional teams, ensure high performance, quality, and customer satisfaction, and guide platform priorities.

Drive iOS technical direction and architecture, deliver high-impact code, mentor engineers, lead cross-functional initiatives to modernize the app, improve developer velocity, ensure platform health, and own incident response and operational quality.

Develop and maintain the Joybuy iOS app for European markets. Participate in product discussions, design scalable technical solutions, implement features, optimize performance and memory, resolve client-side issues, and collaborate with product and engineering teams. Work onsite in London.

Build and craft the end-to-end iOS send flow used by millions: design polished UI, animations, and micro-interactions; own features from design to production; collaborate with product and design; improve recipient discovery (search, QR); raise UX and code quality across the mobile org.

Develop and deliver native iOS features for the Nutmeg app using Agile practices. Own tasks end-to-end, write tests, participate in releases and code reviews, troubleshoot defects, contribute to technical initiatives, and collaborate across product, operations, and engineering to improve the codebase and tooling.

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

As a Senior iOS Engineer, you will lead the development of high-volume features for Wise's mobile app, ensuring seamless user experiences and collaborating closely with product teams.

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

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.

Design, build and maintain scalable, performant iOS applications. Collaborate in Agile teams, contribute to APIs and cloud integrations, perform code reviews and unit testing, troubleshoot front- and back-end issues, and drive quality, performance, security, and continuous improvement.

Design and ship high-performance, pixel-perfect iOS experiences using Swift, SwiftUI/UISKit and Combine; optimize memory/CPU/GPU; integrate high-throughput APIs or model outputs; own features end-to-end through App Store deployment; collaborate with AI researchers to deliver scalable mobile AI products.

Design, implement, and deliver high-quality native iOS and/or Android features. Collaborate on architecture, shape long-term mobile strategy, maintain testable code and CI/CD pipelines, and mentor peers to scale mobile apps globally.

As an iOS Engineer, you will build new features, contribute to internal tooling, and collaborate with teams to enhance our banking platform.

The iOS Engineer will build and maintain Starling's banking mobile app, focusing on security, user experience, and clean code delivery.

The iOS Engineer will contribute to product development, mentor other engineers, and ensure technical excellence in a dynamic agile environment.

As a Senior iOS Engineer at Flo, you will design, develop, and maintain mobile applications, ensuring high-quality user experiences while collaborating with cross-functional teams. You'll take ownership of the mobile product lifecycle and optimize app performance for users globally.

Design, build, and evolve iOS mobile experiences and reusable platform components. Improve scalability, performance, reliability, and developer experience. Collaborate with product, design, and platform teams; participate in code reviews, testing, observability, experimentation, and prototyping. Embrace modern tooling and contribute to long-term technical health and engineering culture.

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.

Own and enhance native iOS applications: build end-to-end features and UIs, integrate REST APIs and push notifications, optimize performance and localization, and manage releases across multiple regions while collaborating with a distributed team.

Lead and deliver iOS features, improve architecture and code quality, review and mentor engineers, plan projects, ensure operational readiness, collaborate across teams, and participate in hiring and team growth.

Design, build, and maintain centralized iOS SDKs, libraries, and toolkits. Own modular iOS architecture, optimize build times and dependency management with Swift Package Manager, and improve automated testing. Architect scalable CI/CD pipelines (mobile automation) and uphold iOS technical standards through documentation and code reviews. Collaborate with feature teams to ensure seamless SDK integration and a strong developer experience.