For our client Mediatis we are looking for a Senior Frontend Developer (m/f/d) with a focus on TypeScript/React. Mediatis is a digital agency with two strong pillars: TYPO3 development and individual software development - increasingly with a focus on AI. 26 colleagues, very flat hierarchies, honest and solution-oriented approach - that's what describes Mediatis.
Tasks
As a Senior Frontend Developer, you will take on technical responsibility for the frontend of .NET-based projects. Your first field of activity: the ongoing migration from Angular to React as well as the further development of modern, long-lasting platforms - including the integration of AI features.
* Migration of existing frontends from Angular to React (TypeScript)
* Architecture, implementation and code reviews for new features
* Close collaboration with backend (C#/.NET) and QA
* Integration of AI functionalities (e.g. agent co-pilot, editor support, AI search)
* Active collaboration in Scrum sprints (4 weeks): Planning, reviews, estimations (planning poker rounds)
* Coordination with the customer (incl. international stakeholders)
* Quality assurance through testing and clean Git workflows
Requirements
* 5+ years of professional experience with React and TypeScript in larger projects
* Deep understanding of modern React patterns (hooks, state management, performance)
* Solid testing experience (e.g. Jest)
* Confident handling of Git and ticketing (Bitbucket, Jira)
* Very good English skills; German skills an advantage
* Senior mindset: independent, customer-oriented, strong communicator, able to take criticism
Nice-to-have
* Angular experience (helpful for the migration) & Vue.js knowledge (interfaces to the TYPO3 team)
* Basic knowledge of C#/.NET; alternatively backend experience with Java or Node.js
* Practice with AI-supported features or agent systems
Benefits
* Half-yearly bonus
* 30 days vacation
* 40 hours/week, very flexible working hours
* Home office: 1-2x per month in the office, the rest can be done from the HO
* Company pension plan, company supplementary health insurance
* Germany ticket, JobRad, optional company car, Edenred card
* Further training: 1x/year trade fair/conference, online courses
* Team culture: 1-2 offsites/year (partly with families), weekly games evening, fitness in the office
Sounds like your next step? Send us your CV and, if available, links to GitHub/portfolio. We look forward to hearing from you!