Hi, I'm Ihor Tereshchenko

06/2024 — 09/2026

InsulaLabs

Lead Markup Developer (promoted from UI Developer)

Led 3 developers and coordinated UI engineering across 11 concurrent projects. Defined HTML/SCSS architecture, BEM/SMACSS conventions, reusable components, and responsive layout standards. Reviewed pull requests, mentored Junior and Middle developers, and worked with designers, project managers, and frontend engineers to deliver accessible, pixel-accurate interfaces. Supported code-quality tooling, CI/CD, performance tuning, and Core Web Vitals.

05/2023 — 05/2024

WePlay Studios

Frontend Developer

Developed real-time broadcast titles, interactive graphics, and video overlays with React.js, GSAP, and HTML/CSS for Tier-1 Esports tournaments. Created smooth, high-performance animations and maintained internal products, corporate websites, and back-office systems using JavaScript, jQuery, and Django templates.

12/2019 — 05/2023

WePlay Studios

UI Developer

Built dynamic, broadcast-ready titles and animated graphics with React.js, Handlebars, GSAP, and HTML/CSS. Delivered pixel-perfect UI overlays for live streaming and post-production environments.

01/2017 — 10/2019

One-V

Frontend Developer

Developed and maintained responsive, cross-browser web applications with HTML5, CSS3, JavaScript, and jQuery. Optimized layout performance and UI interactions across mobile and desktop devices.

12/2014 — 12/2024

Everest.bet

Frontend Developer (Full-time / Part-time / Project Contracts)

Built betting platforms and admin panels from scratch, including flexible UI systems, complex form engines, and high-load interfaces. Helped evolve the stack from vanilla JavaScript and templating to React/Next.js, led performance optimization, and automated CI/CD deployment pipelines.