Frontend Engineer (React)

TL;DR

Frontend Engineer (React): Building a high-performance, data-intensive web application that transforms complex automotive time-series data into intuitive, actionable insights with an accent on scalable architecture, data visualization, and real-time updates. Focus on designing interactive dashboards, multi-step workflows, and integrating with backend services handling large datasets.

Location: Darmstadt, Remote

Company

hirify.global develops Virtual Sensors for Mobility to optimize vehicle design, usage, and maintenance, partnering with automotive manufacturers and Tier1 companies worldwide.

What you will do

• Design and build scalable React applications with TypeScript, modular feature-based architecture, and high performance for data-heavy interfaces.
• Develop interactive dashboards and tools for time-series data using Apache ECharts, including filtering, sorting, zooming, and multi-stage workflows.
• Integrate REST APIs, manage state with TanStack Query and Zustand, handle caching, optimistic updates, and real-time features via Socket.IO.
• Write unit and integration tests with Vitest and Testing Library, maintain TypeScript standards, and ensure code quality through CI pipelines.
• Collaborate with backend, data engineers, and stakeholders to define APIs and user experiences, document architecture, and share best practices.

Requirements

• Strong professional experience with React and modern frontend development
• Expertise in TypeScript (strict mode, advanced types, generics)
• Experience with state management patterns and separation of client vs server state
• Hands-on experience integrating REST APIs (e.g., with Axios)
• Solid understanding of component architecture and composition patterns
• Experience with modern styling approaches such as Tailwind CSS
• Testing experience with modern tools (Vitest/Jest + Testing Library)
• Familiarity with Git workflows and collaborative development

Nice to have

• Familiar with using Claude in software development workflows
• Experience with data visualization libraries such as Apache ECharts, D3, or similar
• Experience with real-time systems using Socket.IO or WebSockets
• Familiarity with containerized development using Docker
• Experience with headless UI libraries such as Radix UI or Base UI
• Knowledge of build tools like Vite