Frontend architecture

Xsolla Login

Global authentication system

May 2025 – Feb 2026 · 10 mos

A secure admin dashboard and SDK surface for a global commerce platform — OAuth2, MFA, and 40+ social providers, built to stay fast at international scale.

Built by Kazi Tajnur Islam, a frontend and full-stack JavaScript developer, using React, TypeScript, Webpack, Styled Components, Playwright, Datadog, React Intl.

1. 01

   Architected the admin dashboard for OAuth2, MFA, and 40+ social providers with transactional security as a first-class constraint.

2. 02

   Shipped a 27-language i18n system and CI/CD pipelines for a globally reliable authentication service.

3. 03

   Designed a Lerna monorepo for the SDK, UI library, and widget app to keep reuse tight and releases coordinated.

4. 04

   Found and removed performance bottlenecks in large-scale modules while keeping regression coverage high.