Senior Frontend Developer (React / Next.js, and German language)

About the Role

In this role, you will shape the user experience of a modern web application that gives engineers and planners at a German transmission system operator clear, fast access to technical asset information. You will own the interface of a data-heavy product, from importing and validating structured data to filtering and visualizing it, working side by side with backend and content platform specialists.
Responsibilities

• Develop the application frontend with React, Next.js, and TypeScript, creating fast, accessible interfaces for data-heavy workflows
• Build and maintain the backend-for-frontend layer with Nest.js, serving the UI through REST and GraphQL APIs
• Integrate the application with Sitecore XM Cloud or a comparable headless CMS to deliver managed content reliably
• Implement bulk import and export of structured data (for example from Excel), including validation, filtering, and visualisation
• Structure the UI as microfrontends, using Tailwind CSS and Radix UI components to keep it consistent and easy to extend
• Collaborate closely with designers, backend engineers, and client stakeholders to turn business needs into usable features
• Set up and maintain CI/CD pipelines in Azure DevOps and deploy to Microsoft Azure
• Contribute to code reviews and share frontend best practices within the team

Requirements

• 5+ years of professional frontend development experience
• 3+ years of hands-on experience with React, Next.js, and TypeScript
• 1+ year of experience with headless CMS platforms, preferably Sitecore XM Cloud or comparable
• Proven experience with microfrontend architectures and with backend-for-frontend implementations using Nest.js
• 3+ years of experience working with REST and GraphQL APIs
• Solid knowledge of HTML and CSS in modern web applications, including Tailwind CSS and UI component libraries such as Radix UI or comparable
• Experience developing data-intensive web applications, including bulk data processing
• Practical experience with Microsoft Azure and Azure DevOps, including CI/CD pipelines
• Experience with monorepo-based development environments
• Scalable frontend architectures in enterprise environments
• Frontend performance optimization
• Fluent German (C1) and very good English for working with the client, joining technical discussions, and writing documentation

SoftServe is an equal opportunity employer. Qualified applicants will receive consideration regardless of race, color, ancestry, ethnicity, national origin, religion, sex, sexual orientation, gender identity or expression, age, citizenship, disability, health condition, marital or family status, veteran status, or any other characteristic protected by applicable law.