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.

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.

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.

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.

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 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.

Rightmove★3.7 (31)· London

Java, Spring Boot, Elasticsearch, Kafka, Gradle, Hibernate, Couchbase, SQL, and Docker. You will build and improve microservices that power Rightmove’s iOS and Android apps, working in a cross-functional team.

You will work with Kotlin, Spring, React Native, TypeScript, PostgreSQL, AWS, Terraform, and Ansible to build backend features for a cross-border fintech mobile app that serves emerging markets. The role focuses on developing consumer-facing features end-to-end in a fast-growing engineering team.

Rightmove★3.7 (31)· London

NodeJS and Java (Spring Boot) on Google Cloud Platform. This role leads cross-functional product development teams building the technology customers use to list properties on Rightmove.

Depop★4.4 (61)· London

This Senior Backend Engineer role uses Scala (primary), TypeScript, Python, Play Framework, Kubernetes, PostgreSQL, DynamoDB, and Kafka. The Shipping Experience team builds and evolves the end-to-end shipping journey for buyers and sellers on Depop’s peer-to-peer circular fashion marketplace.

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

Work with Kotlin (90%+) and Java, using Android Studio, Jetpack Compose, Coroutines/Flow, MVVM, Webviews, and modular architectures. You'll build and test major new features for the Guardian's award-winning Android app, while improving and maintaining existing functionality. You'll take a leadership role on projects and mentor other developers.

JD.COM★3.8 (53)· London

Develop and maintain the Joybuy Android eCommerce app using Kotlin, Java, Android frameworks, and third-party libraries. You will collaborate with product management and engineering teams to deliver user-centric solutions for European markets.

Starling Bank seeks Android engineers to develop their in-house digital banking app using Kotlin, MVVM, RxJava, Dagger, and Realm, with testing via Espresso and JUnit. The role involves building features, improving CI automations and tooling, and shipping code alongside cross-functional teams at a fully licensed UK digital bank. Engineers work in hybrid arrangements with at least one office day per week, reporting to a mobile lead.

You'll build production Android apps in Kotlin, integrating AI-powered features like LLM chat, vision, and voice through backend APIs while optimizing performance and reliability for mobile devices. BJAK is developing a proactive AI smart assistant for everyday users focused on multi-step workflows, persistent context, and real-world task completion. The role requires 3+ years Android experience with hands-on AI feature integration and strong async programming skills.

You'll build production iOS applications in Swift and SwiftUI for A1, an AI smart assistant handling everyday tasks, conversations, and workflows. The role centers on AI integration through backend APIs, designing UX patterns for streaming responses and AI interactions, optimizing performance and battery efficiency, and collaborating with backend and ML engineers on system reliability. You need 3+ years iOS development experience, proven AI feature integration, async/await expertise, and production app shipping skills.

Depop★4.4 (61)· London

Staff Backend Engineer at Depop will work with Scala, Java, or TypeScript on AWS, GCP, or Azure, with event-driven architectures using Kafka. You'll lead technical design and architecture for the Payments and Fulfilment systems serving Depop's 35M-user circular fashion marketplace, partnering with product squads and engineering leaders while mentoring engineers and setting technical standards across these critical systems.

Rightmove★3.7 (31)· London

You'll work with Java 17+, Spring Boot, Kafka, Elasticsearch, Hibernate, Couchbase, SQL, Gradle, and Docker, building backend services and microservices for Rightmove's property platform. The role involves designing features, owning technical decisions end-to-end, and mentoring junior engineers within a cross-functional team supporting millions of users and thousands of agents.

Rightmove★3.7 (31)· London

You'll work primarily in Java and Spring Boot, operating across frontend, mobile, data, and infrastructure to lead architectural design and standards across Rightmove's consumer product domain—property search, listings, saved searches, maps, and valuations serving millions of users. This principal role involves mentoring senior engineers and tech leads, guiding large cross-team initiatives, and shaping long-term platform direction across approximately 60 engineers in the consumer domain.

You'll develop Flutter and Dart mobile applications for Gophr, a same-day delivery platform reimagining logistics for businesses, customers, and couriers. The role involves building high-performance, complex apps on scalable cloud infrastructure, implementing performance-focused UI components, and collaborating with product managers and UX designers to deliver an automated last-mile delivery solution. Junior positions require 1+ year Flutter experience; mid-level roles require 2+ years Flutter and 3+ years native iOS/Android development with architectural pattern knowledge.

JPMorgan★3.9 (20k)· London

You'll build cloud-native microservice applications using Java and Kotlin, delivering end-to-end solutions with RESTful APIs and relational databases while leveraging AI coding tools. The Back-End Engineering team supports JPMorgan Personal Investing's digital wealth management platform serving over 275,000 UK investors, working across fraud prevention, investments, identity services, payments, and core banking. You'll own products through their full lifecycle including production support and incident management.

JPMorgan★3.9 (20k)· London

You'll work with Java, Spring Boot, Kotlin, DynamoDB, Aurora/MySQL, AWS, Kubernetes, and Kafka on event-driven microservices for J.P. Morgan Personal Investing's mobile and web investment platform serving over 275,000 UK investors. The role involves designing and evolving architecture, owning features end-to-end, writing tests, and driving AI-assisted engineering practices across the team.

JPMorgan★3.9 (20k)· London

You'll develop Android applications in Kotlin using MVVM, Hilt, and RxJava/Coroutines while supporting migration to modern architecture patterns and app modularization for white-labelling. The Android team at Nutmeg (JPMorgan Personal Investing) serves over 275,000 UK investors with digital wealth management services, and you'll integrate features like Google Pay and Android Widgets while maintaining CI/CD pipelines and test coverage.

Flo Health★4.8 (26)· London

You'll develop Android features using Java and Kotlin with modern frameworks and in-house components for Flo, the world's #1 women's health app serving 80M+ monthly users across 100+ countries. The role involves building large-scale, polished mobile interfaces, maintaining CI/CD pipelines, and delivering end-to-end product value for a mission-driven team, requiring 7+ years of hands-on Android development experience with proven production apps at scale.

You'll work primarily in Java with AWS, GCP, Kubernetes (EKS), Terraform, and Postgres to build and maintain payment integration systems. The Payment Schemes team handles Starling Bank's mission-critical payment processing, owning integrations with Faster Payments, BACS, and SWIFT connectivity that ensure payments are processed correctly and reliably.