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.

Tripadvisor★3.9 (142)· London

Android Engineer role working with Kotlin, Coroutines, Jetpack Compose, Cursor, and GraphQL in a modular, clean-architecture MVVM layout. You will build and release code for the Tripadvisor Experiences mobile app, collaborating with product and designers on the full software lifecycle. This is a full-stack role where you primarily develop Android systems, with occasional back-end projects.

Tripadvisor★3.9 (142)· London

You will work with Kotlin, Coroutines, Jetpack Compose, Cursor, GraphQL, and MVVM in a clean-architecture modular layout. You’ll join the Tripadvisor Experiences mobile team, focusing on Android app development with occasional backend microservices work.

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.

You will work with Solidity, React, Node.js, TypeScript, GraphQL, React Native or Flutter, and Ethereum or Binance Smart Chain. This consulting company builds web, mobile, and Web3 applications with blockchain integration.

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.

Tripadvisor★3.9 (142)· London

You'll work across mobile (iOS/Android with Swift/Kotlin), web frontend, backend services, and data layers, using REST/GraphQL. The Tripadvisor Experiences Engineering team builds the platform, mobile apps, and infrastructure that help operators and third parties manage inventory and bookings.

Tripadvisor★3.9 (142)· London

Work across mobile (iOS/Swift, Android/Kotlin, offline sync, push, auth, REST/GraphQL), web frontend, backend services, and data/infra layers. You will architect long-lasting systems, lead technical design reviews, and drive operational maturity for the Tripadvisor Experiences platform, which helps operators build their businesses and enables third parties to utilize inventory.

Build and enhance customer-facing and internal web applications using Next.js, React, TypeScript, and GraphQL. The Web Engineering team creates the web experiences powering customer acquisition, servicing, and internal tools at Zopa.

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.

Build full-stack mobile applications using React, Node.js, AWS, React Native, TypeScript, JavaScript, GraphQL APIs, serverless architectures, CI/CD, PostgreSQL, and DynamoDB. You'll design, develop, and ship digital products for Monument, a challenger bank serving the mass affluent, with ownership from architecture to production.

Moneybox★5.0 (4)· London

You will work with Swift, SwiftUI, Swift Concurrency, UIKit, CoreData, and RESTful APIs, using MVVM-C and SOLID principles on the iOS client for Moneybox’s financial-technology product. As a senior individual contributor in a squad, you will own feature delivery end-to-end and may mentor or manage other engineers as the team grows.

Works with SAST, DAST, SCA, Burp Suite, OWASP ZAP, Semgrep, Python, Java, Kotlin, Go, JavaScript, and CI/CD pipelines (GitHub Actions

You will work with Swift, SwiftUI, UIKit, Combine, ReactiveSwift, WebSockets, MVVM-C, and Dependency Injection. Trade Republic is Europe’s largest savings platform, serving 10 million customers across 18 countries. The iOS guild owns product development, collaborating with designers to ensure quality and great UX.

Proton★5.0 (1)· London

As a Senior Front End Engineer on the Standard Notes team, you will work with JavaScript, TypeScript, React, ES6, Playwright, Jest, and Grafana. The team builds a secure note-taking and productivity platform, developing features like encrypted search and cross-platform sync using end-to-end encryption. All Standard Notes codebases are open source.

Funding Circle★3.5 (53)· London

You will work with React Native, React.js, TypeScript, Firebase, Gradle, XCode, REST APIs, and CI/CD for app releases on iOS and Android. The role involves building and scaling a mobile app for Funding Circle’s fintech platform that uses data to provide fast funding to small businesses.

Compare The Market★3.3 (20)· London

You'll design and maintain high-performance iOS applications using Swift, UIKit, SwiftUI, and related SDKs, working with clean architectures like MVVM-C, unit testing frameworks, REST APIs, and databases like Realm or CoreData. You'll collaborate cross-functionally with product, design, and backend teams to deliver mobile solutions for Compare the Market, a fintech platform helping millions make financial decisions through AI-powered comparison tools.

You'll build the iOS app for xAI's AI system designed to understand the universe and aid humanity in knowledge pursuit. Work with Swift, SwiftUI, UIKit, Combine, and optionally Rust, focusing on performance optimization, real-time AI model integration via REST/gRPC, and pixel-perfect UI design. You'll own features end-to-end in a small, flat-structured team prioritizing engineering excellence and speed.

Depop★4.4 (61)· London

You'll architect and lead the technical vision for Depop's iOS application, working with Swift, UIKit, SwiftUI, MVVM/VIPER architecture, XCTest/XCUITest, Swift Package Manager, and CI/CD tools like TestFlight and feature flags. You'll mentor engineers, guide cross-functional teams on iOS strategy, and drive modernization initiatives for the peer-to-peer circular fashion marketplace serving 56 million users. This staff-level role involves shaping long-term platform direction and fostering engineering excellence across the iOS Platform team.

Lloyds Banking Group★3.7 (2.8k)· London

You'll develop customer-facing iOS features using Swift, SwiftUI, UIKit, and Swift Concurrency for Lloyds Banking Group, a major financial services company modernizing banking services. The role involves partnering with designers, product managers, and engineers to ship high-quality features while maintaining app performance and reliability. You need 5+ years of iOS app development experience with shipped App Store apps, testing expertise, and Agile background.

Apple★4.1 (14k)· London

You will work with Swift, SwiftUI, UIKit, Core ML, MLX, and Foundation Models to help Apple's largest customers build AI-powered business applications across iOS, iPadOS, watchOS, macOS, and visionOS. As a hands-on technical expert, you'll partner directly with customer engineering teams to guide development and deployment of intelligent apps, build reference implementations, and shape best practices for AI adoption on Apple platforms. The role involves collaborating with internal stakeholders, engaging executives, and supporting EMEIA business and education customers.

You'll build fullstack features using React, React Native, TypeScript, Go, Node.js, GraphQL Federation, gRPC, and Kubernetes on Juniper, a GLP-1 weight-management program combining medication with personalized nutrition and clinician-led care. The Shop/Ecosystem squad expands Juniper into new product lines and develops recommendation tools in collaboration with Data Science, working across web and mobile platforms. This is a high-autonomy senior role owning features from design through delivery.

You'll work with React, TypeScript, React Native, GraphQL Federation, Go, gRPC, Pub/Sub, Kubernetes, and GCP on Juniper, a large-scale weight-management program combining GLP-1 medication with personalized nutrition and clinician-led care. As a senior frontend engineer in the Growth squad, you'll own the frontend web platform, design and deliver growth-focused experiments improving retention and conversions, and mentor teammates while influencing best practices across the team.

You'll build fullstack features using React, React Native, Go, Node.js, TypeScript, GraphQL Federation, gRPC, and Kubernetes on Juniper, a large weight-management program combining GLP-1 medication with personalized nutrition and clinician-led care. The Shop/Ecosystem squad expands Juniper into new product lines and services, including a recommendations tool developed with Data Science for web and mobile platforms. You'll collaborate cross-functionally to implement scalable solutions and mentor other engineers in a high-autonomy senior role.

JPMorgan★3.9 (20k)· London

You'll work with React, JavaScript, TypeScript, React Native, REST APIs, and GraphQL to build front-end solutions for Chase UK, JPMorgan's digital banking platform launching across the UK. The role involves designing and delivering cloud-native microservices applications while mentoring junior developers and collaborating with cross-functional teams in a flat-structure, tribe-and-squad organization.