# Oleg Proskurin — Cover Letter — Miratech

I'm applying for the Senior Frontend Technical Lead role on IQ Platform.

For the last year I've built and governed a shared design system at PrimeUI (primeui.com): the component library that is the product's core asset, more than 200 React components with props schemas, variants, and design constraints, organized into families and groups. On top of it I built the design-system tooling that defines a project's visual identity (colors, typography, design tokens) and applies it across the library, so every generated site carries a consistent, per-tenant theme.

Before PrimeUI I architected the Tipico US backend. It was a white-label platform for core and state teams, 5 publishing environments over shared content models, running at 75M requests/month. The same data fed several apps and teams: the mobile app, the web portal, the casino team, betting widgets.

My day-to-day stack sits well against what you're asking for: React (11 years, from 0.14 to 19), TypeScript (5 years), TanStack Router (1 year), Tailwind (2.5 years), Vite (1 year). Across those years I've run code review and architecture decisions as routine, and led teams: 30 interviews into 8 hires at FocusReactive, and as sole engineer I own ~70% of PrimeUI architecture. I've also shipped data-heavy frontends when the product needed it: dashboards on Chart.js and interactive Mapbox maps with a PDF report pipeline for a real-estate analytics platform (see Porchlight for details in my CV).

I'm based in Thailand, GMT+7, with a working window that overlaps Australian hours, and I work as a Deel contractor.

Happy to jump on a call and walk through the details.

Oleg Proskurin