Software engineer — I build commerce platforms, where performance is revenue.

Marketplaces, storefronts, and the APIs and state models underneath them. Mostly React and Node, with four years in the Shopify ecosystem and occasional detours into native macOS.

I was the engineer behind four production storefronts at GRENION Brands in Berlin — Banana Beauty, HelloBody, MyRapunzel and Sophie Rosenburg — owning them end to end in Liquid, TypeScript and React across three theme codebases, plus headless work with Hydrogen. Sustained performance work lifted Google PageSpeed scores by up to 20 points per storefront.

Most of my day-to-day work lives in private and company repositories, so this profile is a partial view. The public projects are below.

Shitblej · live

A peer-to-peer marketplace for Kosovo, where second-hand trade otherwise happens in Facebook groups with no search, no categories and no way to judge a seller. The interesting part isn't the listings, it's the transaction: a server-enforced offer → counteroffer → checkout → order state machine, with buyer/seller messaging unlocked only once an order exists. Express 5, MongoDB, Socket.IO, React 19, and three test layers — Jest/Supertest, Vitest and Playwright.

Alfa Rent a Car · live

Car rental platform for a working business: public booking site plus an internal admin dashboard for vehicles, reservations and customers. Next.js 16, TypeScript, Prisma, PostgreSQL, and Auth.js with role-based access.

WindowSwitcher

A macOS utility replacing the app-only Command+Tab with per-window switching — three Chrome windows are three entries, each with a live thumbnail, cycled with a hold-and-release gesture. Swift, SwiftUI and ScreenCaptureKit.

Minimalist Essentials · live

A storefront built to keep business logic out of components: cart line identity, checkout totals and order records live in a framework-free lib/, testable without rendering anything. React 19 with the React Compiler.

Portfolio · live

LinkedIn · endrit.bejta@hotmail.com · Fushë Kosovë, Kosovo