Вячеслав

VIACHESLAV ZHDAN
FRONT-END DEVELOPER

[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | Bratislava, Slovakia | [open contact info](look above in the "contact info" section)

SUMMARY

Results-driven Middle Front-End Developer with 4+ years of experience engineering scalable web applications and
interactive 3D configurators (BabylonJS, Angular, TypeScript). Expert in modernizing legacy architecture using
RxJS, optimizing cross-device performance, and integrating secure APIs (Stripe). Skilled in building reusable UI
component libraries (React, Gutenberg API) and automating build/deployment workflows via CI/CD.

WORK EXPERIENCE

Middle Front-End Developer, LLC Logis 07 2022 – Present


Career Progression: Promoted from Junior to Strong Junior, and subsequently to Middle Front-End Developer
within 2 years based on high performance and code quality.
Multi-Project Ownership: Concurrently maintaining and developing 3 core business projects, seamlessly switching
between distinct stacks (Angular/RxJS and WordPress/React/PHP).

3D Model Configurator (Angular, RxJS, Babylon.js, Cropper.js, Stripe API)
● Engineered an interactive 3D space configurator (colors, sizing, lighting), boosting user session duration by 50%.
● Solved complex spatial positioning challenges using vector math algorithms to ensure precise 3D model
placement and layout control.
● Integrated Stripe API and developed backend logic for secure, end-to-end payment processing and transaction
handling.
● Refactored legacy codebase to RxJS reactive streams, resolving 40% of asynchronous state bugs and improving
code maintainability.
● Optimized 3D rendering pipeline across mobile and desktop devices, achieving a stable 60 FPS and reducing
asset load times by 30%.

Corporate Website (Angular, RxJS, Reactive Forms, Chart.js)
● Refactored the codebase with strict TypeScript typing and a model-driven structure, reducing runtime data errors
by 20% and streamlining team onboarding.
● Engineered a library of reusable Reactive Form components, cutting new feature development time by 25% and
standardizing data validation.
● Architected dynamic dashboard components using Chart.js to render complex financial/analytics datasets via
interactive charts, data tables, and paginated lists.
● Designed and implemented a configurable modal system and dynamic page layouts to enhance content
accessibility and overall user experience.

Proprietary WordPress Framework (PHP, React, Gutenberg API)
● Architected a library of custom React-based Gutenberg blocks and PHP patterns, replacing legacy default blocks
and accelerating site-wide redesign by 40%.
● Improved site accessibility and SEO structure by implementing strict semantic HTML5 tags and automated
heading hierarchy (H1–H3) across custom blocks.
● Automated frontend build cycles and deployment workflows using NPM, Webpack, and GitHub Actions (CI/CD),
ensuring zero-downtime releases

EDUCATION

National Technical University of Ukraine
Bachelor of Computer Science (2020 – 2024)

SKILLS & TOOLS



Frontend Web
Angular · RxJS · React · Redux · TypeScript · JavaScript · HTML5 · CSS3 · Sass
WordPress Development
Gutenberg API · WordPress API · PHP · MySQL
Libraries & APIs
Babylon.js · Stripe API · Chart.js · Cropper.js
Build & Version Control
Git · GitHub · Bitbucket · Webpack · NPM · GitHub Actions (CI/CD)
Development Environment
WebStorm · VS Code · ESLint · Prettier

LANGUAGES

English — B2 (Upper-Intermediate) · Ukrainian — Native