Hi, I'm Ihor Tereshchenko

I specialize in developing high-load iGaming platforms, Gambling projects, and interactive systems for Esports.

About me

For over 10 years I have been designing and building complex web interfaces from scratch. I have deep expertise in developing full-fledged casino platforms and live overlays for Tier-1 Esports tournaments (Dota 2, CS2, Valorant). I focus on real-time architecture (WebSockets), smooth complex animations (GSAP), correct localization (i18n), and flawless optimization of Core Web Vitals. I build pixel-perfect design systems and reliable component structures on React / Next.js.

10+
Years experience
30+
Projects shipped
5
Companies
Tier-1
Esports broadcasts

Experience

06/2024 — Present
InsulaLabs
Lead Markup Developer
Organized markup workflows, ensured cross-browser compatibility and CI/CD integration. Developed UI/UX coding standards (BEM, SMACSS). Mentored junior developers. Core Web Vitals & a11y optimization.
05/2023 — 05/2024
WePlay Studios
Frontend Developer
Real-time broadcast titles, interactive graphics, video overlays using React.js, GSAP, HTML/CSS. High-performance animations for live Esports broadcasts (Tier-1 tournaments).
12/2019 — 05/2023
WePlay Studios
HTML Developer
Dynamic broadcast-ready titles and animated graphics using React.js, Handlebars, GSAP. Pixel-perfect UI overlays for live streaming and post-production.
01/2017 — 10/2019
One-V LTD
Frontend Developer
Responsive cross-browser web apps using HTML5, CSS3, JavaScript, jQuery. Layout performance optimization.
12/2014 — 12/2019
Everest.bet
Frontend Developer
Responsive UI for betting platforms using React.js, HTML/CSS, JavaScript. Interactive interfaces, forms, dynamic components.

Projects

04.1

Skills

Frontend

React.js
Next.js
TypeScript
JavaScript (ES6+)
HTML5/CSS3
SCSS/SASS

State & Animation

Zustand
Redux
GSAP
WebSockets
Socket.io
Handlebars

Optimization

Web Vitals
SSR/SSG
REST API
i18n
a11y

Tools

Webpack
Gulp
npm
Git
GitLab
Bitbucket
Jira
Figma

Quality

ESLint
Prettier
Stylelint
BEM
SMACSS
Pug
Nunjucks

04.2

Languages

Ukrainian

Native

Russian

Native

English

B1 - Professional Working Proficiency

Education

Master's Degree in Radio Electronics Engineering
Zhytomyr Military Institute named after S.P. Korolev
2008 — 2013 | Zhytomyr, Ukraine
CyberBionic Systematics
HTML, CSS | TP58936714 | 2017
Template Monster
HTML, CSS | 11343 | 2017

Contact

Irpin, Ukraine / Brasov, Romania

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