Aleksander Ryazantsev

💬 Profile

Frontend and mobile developer with experience building cross-platform applications, web interfaces, and automation tools. I specialize in React, React Native, and TypeScript. Proficient in MobX, GraphQL, and REST API integration, with a strong focus on performance, usability, and platform adaptation. Comfortable delivering full development cycles — from mockups to production — including CI/CD automation, document generation, and custom UI components. Open to remote roles and relocation.

💻 Core Technologies

React, React Native, TypeScript, MobX, GraphQL, REST API, Vite, HTML5, SCSS, Node.js, EAS Build, GitHub Actions

🛠️ Key Skills

Mobile Development

React Native, Expo, EAS Build (local and cloud builds, multi-brand architecture)
UI optimization and platform-specific adaptation for iOS and Android
Integration of device features: push notifications, geolocation, camera, in-app browser (WebView)
State management with MobX (structured architecture, decorators)
Interface localization (i18n), offline data storage via MMKV
Error monitoring using Sentry
App release preparation for App Store and Google Play

Frontend / Web

React, TypeScript, Vite, HTML5, SCSS, CSS Modules
SPA and PWA development, SVG animations
Responsive layout, cross-browser compatibility, SEO optimization
GraphQL Code Generator for typed queries
Custom UI using Skia, Reanimated, and Redash
Landing pages and websites using HTML, SCSS, React, WordPress

Infrastructure & Teamwork

GitHub Actions (CI/CD), Husky, Prettier, ESLint, lint-staged
Team collaboration using Git Flow and Code Review
Led a team of 3 developers: task planning, responsibility assignment, progress tracking

Automation & Scripting

Word document generation using docx — contracts, templates, reports
Excel report generation using excel4node — analytics, statistics, calculated values, currencies
Responsive email templates using MJML + Node.js
CLI tools in TypeScript/Node.js — modular task-based architecture
Google Sheets API integration, CSV ↔ JSON data conversion

📱 Projects

ItCharge App

React Native + Expo

Multi-brand architecture with custom build profiles
GraphQL API integration with typed queries via Codegen
Support for push notifications, geolocation, offline data (MMKV)
GitHub Actions for CI/CD, Sentry for error monitoring

ItCharge Admin Panel

Admin interface built with React + MobX + TypeScript. Focused on scalable state architecture and dynamic UI patterns.

ItCharge Marketing Website

Public website built with Next.js and styled-components. Optimized for performance, responsiveness, and accessibility.

Automation & Tools

CLI tools for generating Word, Excel, and email documents in TypeScript
Scripts for business reporting and tabular analytics
Google Sheets API + CSV/JSON converter
Production-ready boilerplate with React + MobX + Vite

🎓 Education

Podolsk College of Service, Russian State University of Tourism and Service
Automated Information Processing and Control Systems (Industry-specific)
2006–2009

🗣 Languages

Russian – native
English – professional working proficiency