Frontend Engineer

Ihre Aufgaben

As a Frontend Engineer, you will play a key role in building a high-performance, data-intensive web application that transforms complex automotive time-series data into intuitive, actionable insights.

The platform enables engineers and analysts to upload, process, validate, and explore vehicle signal data across a multi-step workflow—from ingestion to quality validation and visualization. Your work ensures that these workflows are reliable, responsive, and easy to use, even when handling large datasets and real-time updates.

Your primary responsibility is to design and implement scalable, maintainable frontend systems that integrate seamlessly with backend services and real-time pipelines. As the product grows in complexity, your expertise will be critical in maintaining performance, usability, and architectural consistency.


Your Role in More Detail

Frontend Architecture and Development

• Design and build scalable React applications using a modern TypeScript-first stack.
• Implement modular feature-based architecture with clear separation between UI, state, and data layers.
• Ensure high performance and responsiveness across complex data-heavy interfaces.

Data Visualization and User Workflows

• Develop interactive dashboards and tools for time-series data using Apache ECharts.
• Translate complex data processing steps into intuitive multi-stage user workflows (upload → mapping → validation → analysis).
• Implement advanced UI features such as filtering, sorting, zooming, and comparison views.

State Management and Data Integration

• Integrate REST APIs using structured service layers and hooks.
• Manage server state with TanStack Query and client state with Zustand.
• Handle caching, optimistic updates, and synchronization with backend systems.

Real-Time Data and Event Handling

• Implement real-time features using Socket.IO for pipeline updates, notifications, and system status.
• Ensure consistent UI updates based on asynchronous events and long-running backend processes.

Quality, Testing, and Maintainability

• Write and maintain unit and integration tests using Vitest and Testing Library.
• Maintain strict TypeScript standards with zero `any` usage.
• Ensure code quality through linting, testing, and CI pipelines.

Collaboration

• Work closely with backend engineers, data engineers, and product stakeholders to define API contracts and user experiences.
• Translate technical requirements into clean, maintainable UI solutions.
• Communicate design decisions and implementation trade-offs clearly.

Documentation and Knowledge Sharing

• Document frontend architecture, patterns, and workflows.
• Contribute to shared design systems and frontend best practices.
• Support team members with guidance on architecture, tooling, and patterns.

About the Role

You will be working on a modern frontend stack built around React, TypeScript, and a strongly modular architecture. The application includes:

• Multi-step workflow systems with enforced state transitions
• Real-time data pipelines and notifications
• Advanced data visualization dashboards
• A custom design system with semantic tokens and theming
• A scalable app shell with dynamic layouts

The environment emphasizes code quality, maintainability, and strong collaboration between frontend and backend teams.

Ihr Profil

Must Have
- Strong professional experience with React and modern frontend development.
- Expertise in TypeScript (strict mode, advanced types, generics).
- Experience with state management patterns and clear 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.