Ihor Kalchenko

Summary

Result-oriented Frontend Engineer with 6+ years of experience building scalable, high-performance web applications using Angular. Strong expertise in architecting large-scale, modular enterprise applications, designing real-time features, and optimizing UI performance. Proven track record of delivering complex features, introducing better architectural patterns to modernize UI layers, and integrating frontends with backend microservices via REST. Passionate about leveraging AI-assisted development tools to accelerate coding, refactoring, and documentation while maintaining strict code quality and design system consistency.

Core Skills

• Frontend: Angular (v14 - v19+), TypeScript, RxJS, NgRx (State Management), Component Store, JavaScript (ES6+)
• UI & Architecture: HTML5, CSS3, SCSS, Responsive Design, Web Accessibility, Angular Material, Ionic, Bootstrap, TailwindCSS
• API Integration: REST API, WebSockets, Backend Microservices connectivity
• Tools & AI: AI-assisted development practices (ChatGPT/Claude/Copilot), Webpack, npm, yarn, Git, Docker
• Testing & CI/CD: Jest, Jasmine, Karma, Exploratory Testing, CI/CD pipelines, Frontend Observability

Experience

1. Frontend Developer | Protonyx /  2021 – Дотепер
2. Frontend Developer | Innovecs / 2019 – 2021
3. Frontend Developer | Elyland / 2017 – 2018
4. Markup Developer | Oznaka / 2015 – 2017
5. Markup Developer | GTK / 2014 – 2015

Key Achievements

• Enterprise UI Architecture: Successfully designed and delivered real-time, highly scalable features for fintech products.

• Performance Optimization: Reduced UI bottlenecks through efficient data binding, lazy loading, and modern caching strategies.

• Technical Debt Reduction: Led Angular migration and upgrade initiatives across multiple production applications.

• AI Tool Adoption: Integrated AI-assisted coding tools into daily workflows to optimize code refactoring and test coverage.

Education

Master’s Degree in Computer Science — Donbas State Mechanical Engineering Academy