TypeScript Developers build type-safe applications across frontend (React, Vue, Svelte), backend (Node, Bun, Deno, Hono on edge), and shared code between them. The language has become the dominant choice for new JS-ecosystem development; TypeScript fluency is essentially a baseline expectation rather than a specialisation.
Salary by Experience Level
Junior
$75,000 – $110,000
per year
Mid-Level
$115,000 – $165,000
per year
Senior
$170,000 – $250,000
per year
Required Skills
TypeScript 5+ (generics, conditional types, utility types)React or Vue or SvelteNode.js / Bun / DenotRPC / Zod / Prisma (type-first stacks)VitestMonorepo tooling (Turborepo, Nx)Build tools (esbuild, Vite, Webpack)Edge runtimes
Common Interview Topics
Advanced type system (conditional types, mapped types, infer)