Android‐käyttöliittymäsuunnittelu Jobs

I need my live B2B fintech portal () rebuilt as a fully-native Android application in Kotlin. The backend—PHP with MySQL—already exposes clean, well-documented REST APIs, so your focus is UI, API binding, and biometric SDK handling. Tech stack & architecture • Kotlin using MVVM or other Clean Architecture patterns • Retrofit for networking and JSON parsing • OTP + MPIN login with device binding, SSL pinning, and token-based sessions Biometric requirement AEPS transactions must trigger the RD Service intent flow for Mantra, Morpho, and Startek devices. Please demonstrate successful capture and response handling for each model during testing. Dashboard behaviour On launch the dashboard must pull data dynamically and show: 1. User account summary ...

I need a skilled Android developer to turn my product catalog into a polished native shopping experience. The app will be released only on the Google Play Store, so I’d like it built with the latest Android SDK, Kotlin (or Java if you can justify the choice), and standard Material Design patterns to keep navigation familiar and intuitive. Core flow Visitors should be able to browse categories, open a product page with images and specs, add items to a cart, and move through a secure checkout that supports at least one mainstream payment gateway. A fast in-app product search is essential, and I’m keen on clean architecture so the codebase remains maintainable as the catalog grows. Data & back-end You’re free to recommend the most suitable stack for syncing invento...

I’m building an Android application that centres on secure user authentication and I need a designer to craft the complete visual experience. Your task is to translate my rough sketches and flow diagrams into polished, production-ready UI assets that feel native to Android while maintaining a distinctive brand style. The core scope covers: • High-fidelity mock-ups for the login, sign-up, forgot-password and welcome screens • A cohesive colour palette, typography set and icon pack that aligns with Material Design • Exported PNG/SVG assets plus the original layered source file (Figma, Adobe XD or Sketch—whichever you prefer) Acceptance criteria: 1. Screens render correctly on common Android breakpoints (360dp, 411dp, 480dp). 2. All text styles, colours and ...