Viacheslav Drobyshev

Crypto Wallet App | Legacy Code Refactoring | UI Redesign | Performance Optimization 🎨 UI Redesign & Product Improvements Worked on the redesign of a crypto wallet application, updating key screens and user flows to create a cleaner, more modern, and more intuitive experience. Collaborated on improving visual consistency, usability, and overall interaction patterns across the app. 🧹 Legacy Code Refactoring Focused heavily on refactoring legacy React Native code to improve maintainability, readability, and scalability. Reworked outdated components, simplified complex logic, and helped bring the codebase closer to modern development standards. ⚡ Performance & Stability Improvements Optimized existing screens and flows to improve app responsiveness and reduce technical debt. Identified problematic areas in the legacy codebase, improved component structure, and contributed to a smoother user experience across iOS and Android. 🔗 Crypto Wallet Features & App Maintenance Worked with wallet-related functionality, including transaction flows, user account screens, and crypto-focused UI elements. Supported ongoing product development by fixing bugs, improving existing features, and ensuring stable behavior in production.

Crypto Wallet App | Payments Integration | Security & UI Redesign 🪙 Payment Systems Integration Implemented multiple fiat-to-crypto payment gateways — including Onramper, Mercuryo, and MoonPay — ensuring seamless user onboarding and secure transactions within the app. Focused on smooth API integration, robust error handling, and optimized user flows for deposits and purchases. 🔐 Biometric Authentication & Security Enhancements Integrated biometric authentication (Face ID / Touch ID) to strengthen user security and streamline the login and transaction approval processes. Enhanced encryption and secure key storage mechanisms to align with best practices for financial applications. 🎨 UI/UX Redesign & Performance Improvements Redesigned key app screens to create a more intuitive and visually appealing interface, aligning with modern crypto app aesthetics. Improved performance and responsiveness across platforms, ensuring a smooth experience for both new and returning users.

Family Album App | Expo | Media Handling | UI Redesign | Performance Optimization | A/B Testing 🖼️ Media Features & Optimization Worked on a family photo album app built with Expo, focusing on handling and displaying photos and videos efficiently. Implemented performance optimizations to ensure smooth media rendering and improved app responsiveness. 🎨 UI Redesign & Feature Expansion Led the redesign of the application’s interface to modernize the user experience and implemented new features based on user feedback. 🧪 A/B Testing & Experimentation Set up A/B testing strategies to evaluate feature performance and user engagement, helping inform data-driven product decisions.

React Native | iOS & Android | CI/CD | Hardware Integration 🛠 Mobile App Leadership & Development Took ownership of structure and maintenance for Goget’s iOS and Android apps, ensuring consistent quality and performance in a production environment. Worked closely with a tight-knit team including the project owner, UI/UX designer, and back-end developer to deliver cohesive user experiences. 🚀 CI/CD & Automation Set up and maintained CI/CD pipelines to streamline deployment processes for staging and production environments, enabling faster release cycles and reliable rollouts. 🔌 Hardware Integration Integrated a custom physical device with the mobile app using React Native, bridging software with hardware to power connected workplace functionality.

React Native | iOS & Android Development | Real-time Systems | UI/UX Collaboration 🚀 App Launches & Cross-Platform Development Successfully developed and launched multiple cross-platform applications (Tiqle, Ratespire, Wizer) on both Google Play and the App Store using React Native. Collaborated with cross-functional teams including project managers, UI/UX designers, and back-end developers to deliver scalable, user-friendly mobile experiences. ⚡ Real-Time Features & Notifications Integrated WebSockets (Pusher) for real-time messaging and updates across Tiqle, Ratespire, and Wizer. Implemented push notifications for instant delivery of messages and alerts (Tiqle, Wizer). Utilized Firebase Dynamic Links to track referral flows and invited user activity (Tiqle, Wizer). 🔐 API Integration & Secure Authorization Integrated RESTful APIs across all projects, implementing secure access using JWT (JSON Web Token) authentication. 🎮 Social & Interactive Features Built engaging social experiences: TikTok-style feed with infinite scroll and virtualization (Wizer) Facebook-like wall with customizable reactions (Ratespire) Embedded HTML5 games within React Native using frames (Tiqle) 📱 UI Development & Platform Transition Led front-end transformation of SQR Menu from Vue.js to a responsive, mobile-first React layout. Implemented an in-app browser for seamless product navigation (Ratespire).