Payload CMS expert (m/f/d) - Next.js, TypeScript, OpenAPI, Git - remote

3 years of experience in web application development (frontend/backend) with a focus on CMS systems 1 year of experience in implementing Payload CMS 3 3 years of experience implementing Next.js 3 years of programming experience with TypeScript 3 years of experience in testing and bug fixing web applications based on requirements. Experience in testing REST services with JSON/XML (OpenAPI) Knowledge of Git (branch, commit, push and pull) Language skills: German (C2 level) or native speaker, English (B2 level) Excellent knowledge of Payload CMS 3.0 and plugin development. Excellent knowledge of Next.js 14 (SSR/SSG) and headless CMS architectures. 2.3. Very good knowledge of the web testing tools Playwright or Cypress for automated tests including debugging. 2.4. Very good knowledge of interface testing with applications such as Swagger, Postman, or another Java test framework, including test case creation and interface communication in JSON format. 2.5. Experience with a test management tool for test cases in Jira using Xray or a comparable Jira plugin. 2.6. Good knowledge of GitLab 2.7. Good knowledge of Docker and containerization of apps 2.8. Good knowledge of performance and load testing (including with Gatling) 2.9. Project experience from agile projects (description of the agile mindset)