web caching , testing strategy (unit, semantic html , visual), Accessibility, Cdn, Typescript, CSS, E2e, Azure Pipelines, internationalization and localization, DX tooling, Tailwind, microfrontend composition, Security, API contracts, WCAG 2.1 AA, Module Federation, Contract, SSR frameworks, performance optimization, CI/CD, design systems, Core Web Vitals

Database Management, React, Javascript, CSS, Pyspark, HTML, Angular