Artem Zakharchenko is a Ukrainian software engineer best known as the creator of Mock Service Worker (MSW) — the de-facto standard for API mocking in modern JavaScript test suites — and as a lead instructor on the EpicWeb.dev testing track alongside Kent C. Dodds.
His CourseFlix listing carries four Artem Zakharchenko courses: Testing Fundamentals (EpicWeb), Mocking Techniques in Vitest, Advanced Vitest Patterns, and React Component Testing with Vitest. Material is paid and aimed at JavaScript developers who want to make testing a first-class part of their workflow rather than an afterthought.