JavaScript / TypeScript

JavaScript is the universal language of the web — essential for any modern site or app.
Combined with TypeScript, it gets even stronger: types bring reliability, maintainability and better DX.

Why JavaScript / TypeScript?

Universal: Runs in every browser and on the server (Node.js).
Ecosystem: Frameworks like Vue.js, Nuxt.js, React, Next.js.
Flexible: From small widgets to complex SPAs or APIs.
TypeScript: Higher code quality via type checking and modern language features.

Typical use cases:

Interactive frontends
Single‑page applications (SPAs)
Server‑side rendering (SSR) with Nuxt/Next
APIs & tools with Node.js

Services with JavaScript/TypeScript

Frontend development with Vue.js, Nuxt.js, React.
Full‑stack with Node.js backends.
TypeScript refactoring for clean and robust codebases.
Integration of APIs, payment providers and external services.

Example projects

Headless storefront with Nuxt.js & Shopware 6 API.
Realtime dashboard with Vue.js, WebSockets and Node.js.
Refactoring JavaScript to a maintainable TypeScript project.

Tooling & workflow

Build tooling with Vite, Webpack, Rollup for optimised bundles
Code quality via ESLint, Prettier, Stylelint and Husky hooks
Storybook for component-driven development and documentation
Package management and monorepos using pnpm, npm workspaces or Turborepo

Quality & testing

Unit & integration tests with Vitest/Jest
E2E tests using Playwright or Cypress
Typing strategies (strict mode, generics, utility types) for resilient APIs
Performance measurements with Lighthouse, Web Vitals, bundle analyzers

Deployment & operations

CI/CD pipelines covering lint, test, build and preview deployments
Hosting on Vercel, Netlify, Cloudflare Pages or bespoke servers
Observability via Sentry, LogRocket, TrackJS for error diagnostics
Feature flags, rollbacks and progressive delivery for safe releases

Conclusion

JavaScript is the web standard, and TypeScript takes it to the next level.
I use both to build modern, fast and maintainable applications.