Work with Kotlin, SQL/noSQL, TensorFlow Lite, Coroutines, Flow, and REST/gRPC to build a production Android app for an AI-powered proactive smart assistant that handles multi-step workflows and real-world task completion.

Build and maintain iOS applications using Swift and SwiftUI, integrating AI features backend APIs and on-device inference with TensorFlow Lite. The team is building an AI-native proactive smart assistant that handles long-running workflows, multi-step reasoning, and real-world task completion for everyday users.

Expedia Group★3.8 (1.2k)· London

The iOS engineer will work with Swift, SwiftUI, Xcode, Git, and AI-assisted tools like Claude Code, handling UI patterns, animations, testing, and debugging. They join Expedia Group’s Design System team, building reusable UI patterns and experiences across the company’s travel platforms. The team’s scope isn’t specified.

Native Kotlin and Jetpack Compose development on a consumer-facing Android app for in-store grocery trips, running on a known device inside live stores. Integrates on-device edge AI (ML Kit, TensorFlow Lite) and uses AI coding tools like Cursor or Claude Code. Reports to the Head of Android.

Build and maintain the company’s platforms using JavaScript, Node.js, Next.js, Express.js, React/React Native, .Net 4.8/9/10, C#, HTML/CSS, and API Restful Services. You will develop both web and mobile applications, collaborating with the team while working independently.

Starling★3.5 (66)· London

Work with Swift (iOS) and Kotlin/Java (Android), native mobile security APIs and cryptography, and public cloud IaaS. You will design, build, and maintain security controls for the company’s Android and iOS mobile banking applications as part of the Cyber Security team.

Swift, SwiftUI, Structured Concurrency, MVP/MVVM/VIPER, REST APIs, and CI/CD (GitHub Actions). You’ll join the Account Mobile team driving the Wise app’s homepage and features that help users manage cross-currency money, collaborating with product, design, and analytics—alongside 60+ other mobile engineers.

Wise★3.5 (42)· London

You'll work with Swift, SwiftUI, Structured Concurrency, VIPER/MVVM, REST APIs, and GitHub Actions. On the Account Mobile team you'll develop the iOS app's homepage and features helping users manage and grow their money, collaborating with 60+ other mobile engineers.

You will develop iOS apps using Swift, SwiftUI, Combine, and Swift Concurrency, with unit testing and peer review. CreateFuture is an AI-native consulting partner building digital products and services for clients like PayPal and adidas.

Wise★3.5 (42)· London

Build iOS features using Swift, with architectures like VIPER or MVVM, and optionally SwiftUI, Structured Concurrency, and CI/CD (GitHub Actions). As part of Wise’s Account Mobile team, you’ll work on the app’s homepage and features for managing cross-currency money, collaborating with 60+ mobile engineers across the company.

Google★4.3 (6.2k)· London

Work with Java and Kotlin on Android display and power management frameworks across devices. Manage engineers as a Tech Lead Manager, ensuring stability and extensibility of critical display and power frameworks for the Android ecosystem.

You will build production mobile apps for iOS and Android using React Native, TypeScript, and integrate AI, natural-language features, Swift, Kotlin, and Python. The venture-backed startup creates AI-powered software that replaces manual workflows for industrial and operational teams.

You will own an existing production React/TypeScript application across web, iOS, and Android, integrating with Python/FastAPI backends and managing CI/CD pipelines. The team builds a computer-vision platform that turns video data into actionable insights. You will drive frontend architecture on a small, collaborative engineering team.

Foundation Partners Group★2.6 (165)· London

Typescript, Python, full-stack web development, frontend focus, offline support, observability, and testing across devices. You will build and scale consumer-facing production web applications for Flok Health, an AI-native healthcare company transforming care for MSK pain.

Senior Software Engineer role at Everfox, working with modern C++ on cross-platform desktop (Linux, Windows) and mobile (Android, iOS) apps, plus Java/Kotlin, Swift/Objective-C, Qt, GitLab, Docker, Kubernetes, and Python. You will build and maintain the end-point software layer for the Hardsec product line’s secure browsing and VDI solution, owning design, development, and delivery. You will also coordinate a small team of engineers and manage release planning across multi-platform shipped products.

React, Node.js, AWS, TypeScript, React Native, RESTful and GraphQL APIs, serverless architectures, CI/CD, PostgreSQL, DynamoDB, and AI tools such as Claude and GitHub Copilot. Build and ship digital products for a pre-IPO challenger bank serving mass affluent clients, owning full-stack work from architecture to production monitoring.

You will work with Swift, SwiftUI, Swift Packages, and GitHub Actions for CI/CD. The UK-based mobile engineering group builds a Server-Driven UI framework for Motorway’s online used-car marketplace connecting sellers with dealers.

Lyst★3.0 (1)· London

You will use Swift, SwiftUI, and the iOS SDK to build native features for Lyst’s fashion shopping platform. Working within a cross-functional product squad, you’ll develop personalized discovery experiences and contribute to the mobile architecture using MVVM, Clean Architecture, and CI/CD tooling like Bitrise and Fastlane.

Wise★3.5 (42)· London

You will use Swift, MVVM or VIPER, and REST APIs as a Senior iOS Engineer on Wise’s Send Experience team, which owns the end-to-end international transfer flow serving millions of customers.

Develop iOS apps using Swift, SwiftUI, Combine and Swift Concurrency, with unit testing and AI tools like Claude Code. The team builds digital products for clients including PayPal and adidas as an AI-native consulting partner.

Design, develop and maintain scalable web and mobile applications using React or React Native for the front-end and Java for backend services and APIs at EC Markets.

Work with Swift, RxSwift, SnapKit, Realm, Sourcery, SwiftGen, SwiftFormat, SwiftLint, Danger, UIKit and MVVM-C architecture on a modular iOS app. The role involves building new features and maintaining existing ones for Engine's SaaS banking platform, which is offered to financial institutions worldwide. Team size is not specified.

Work with Kotlin, Jetpack Compose, Android Jetpack components, Kotlin Coroutines, Flow/StateFlow, RxJava, Hilt, and KMM. As an Android Engineer on the Customer Experience team, you will help further the success of the ASOS Android app, which has over 5M active users worldwide.

Smarkets★5.0 (2)· London

Build web and mobile apps with Next.js, React, React Native, TypeScript, Redux, React Query, WebSockets, and REST APIs, using Figma for design and GitLab with Kubernetes for DevOps. You will craft polished interfaces for Smarkets, which operates one of the world’s most sophisticated prediction markets for sports and political events.

Capital on Tap★3.9 (55)· London

You'll work with C#, .NET, .NET Core, Flutter, Dart, Riverpod, GoRouter, Kotlin, Swift, SQL Server, MongoDB, Firestore, GCP, Azure, and CodeMagic. You'll own backend services for the Banking and Repayments platform and contribute to iOS and Android mobile development.