Stefan Dietz

IT-Consulting

Experienced Senior Fullstack Developer with over 10 years of professional experience in developing modern web applications and accessible component libraries. Specialized in TypeScript, React, Vue.js, and Node.js with a focus on accessibility (WCAG), AI integration, and high-performance frontend architecture.

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Frontend Development

TypeScript, JavaScript, HTML5, CSS3, SCSS
Vue.js, Nuxt, React, Redux, Stencil
Next.js, NextAuth, Formik, AngularJS
Accessibility (WCAG, BITV, EN 301 549)
Tailwind CSS, shadcn/ui
Progressive Web Apps, Offline First
ESLint, Storybook, Lighthouse, Core Web Vitals

Backend & AI

Node.js, Express, Java, Spring Boot
REST APIs, Microservices
MySQL, MariaDB, Oracle
Vercel AI SDK, AWS Bedrock Agents
AWS (S3, Lambda, Bedrock, Cognito)
Prompt Engineering

Testing & QA

Jest, Vitest, Playwright
Backstop.js, Axe (Accessibility Testing)
E2E Testing, Visual Regression Testing
Test Driven Development (TDD)

Build & DevOps

npm, pnpm, Webpack, Vite
Docker, Jenkins, GitHub Actions, GitLab CI
Monorepos, CI/CD, Dependency Management

Methods & Collaboration

Agile (Scrum, Kanban)
Git (GitHub, GitLab, Bitbucket)
Jira, Confluence, Code Reviews
Technical Leadership & Mentoring