Developed a Quantum Wallet Android App

Led the development of an Android app for a quantum wallet from scratch.
Created architecture and built custom UI components using Jetpack Navigation, Compose, and Hilt.
Collaborated with senior engineers to integrate a payment terminal.
Focused on secure and efficient operations throughout the project.

Ruslan worked on this case as the Android Developer at 4Taps.

Android Developer

Secure Payment Integration

Android Development

Fintech

Global

Growth

Quantum Wallet

Android mobile app

Jetpack Compose

Jetpack Navigation

Kotlin

Hilt

GitHub

B2C

Ruslan

Kotlin Multiplatform Developer at Secret Santa

Ruslan's cases

Cross-Platform Development

Software Development

Global

Startup

Mobile Productivity App

Cross-platform mobile app

SwiftUI

Lead Development of a Cross-Platform Mobile Application

Led the development of a mobile application from scratch using Kotlin Multiplatform.
Ensured high-quality and maintainable code by managing the mobile development team.
Architected a scalable and maintainable structure with approximately 50 modules.
Implemented advanced navigation using the Decompose library.
Applied clean architecture principles to deliver high-quality, maintainable code.

Lead Mobile DeveloperActi

Cross-Platform Development

Software Development

Global

Gift Coordination App

Mobile app

Compose Multiplatform

GitHub

Compose Multiplatform UI Development

Built architecture and package structure for a freelance project.
Created UI using Compose Multiplatform for iOS and Android.
Collaborated with designers and backend developers to ensure seamless integration.

Compose Multiplatform DeveloperSecret Santa

Multi-Module Architecture

Development of a Multi-Module Android Application

Developed a multi-module application from scratch using Kotlin and modern technologies.
Implemented features for saving notes in a database, setting reminders, and attaching photos.
Applied Clean Architecture, modular structure, and best development practices.

Android DeveloperSecret Santa

Similar cases

Secure Payment Integration

Developed a Quantum Wallet Android App

Led the development of an Android app for a quantum wallet from scratch.
Created architecture and built custom UI components using Jetpack Navigation, Compose, and Hilt.
Collaborated with senior engineers to integrate a payment terminal.
Focused on secure and efficient operations throughout the project.

Android Developer4Taps

Multi-Module Architecture

Development of a Multi-Module Android Application

Developed a multi-module application from scratch using Kotlin and modern technologies.
Implemented features for saving notes in a database, setting reminders, and attaching photos.
Applied Clean Architecture, modular structure, and best development practices.

Android DeveloperSecret Santa

Payment Processing System

Web App

Python

Payment API Integration and Automation

Integrated a payment API client with a Telegram chat-bot, enabling 500 users to initiate over 300 payments daily.
Developed backend Django ORM logic to automatically generate and persist more than 10,000 payment records annually.
Implemented a cron-based scheduler for payment status updates, achieving synchronization latency under 2 seconds.
Ensured 99.9% accuracy in payment status tracking, reducing payment dispute cases by 40%.

Python DeveloperPeoplePro Tech

Built Cypress Framework for Educational Platform

Developed a Cypress framework from scratch using Page Object Model, enhancing test structure.
Reduced redundant code by 30% through reusable components, improving maintainability.
Implemented a CI/CD pipeline for Cypress tests, reducing deployment failures by 20%.
Integrated new test management systems (Qase, AIO Tests) for streamlined test processes.
Conducted performance testing using JMeter to identify and resolve bottlenecks.

QA EngineerAltermeliora

Optimized Web Application for Entangle

Developed pixel-perfect interactive adaptive websites with animations.
Optimized website animations rendering, improving page load from 6 to 2 seconds.
Developed frontend for the token sale dApp with pixel-perfect approach.
Implemented EVM and Solana blockchains integration to the dApp.

Frontend DeveloperEntangle