Front-End Engineer

We are looking for a Middle Frontend Engineer (React) to join one of our projects on a part-time, project-based basis. The project involves developing and improving a web application with a strong focus on document and file management, including file visualization, previews, and user interactions. Requirements - 2+ years of commercial frontend development experience. - Strong proficiency in React, TypeScript, JavaScript (ES6+). - Experience with state management and modern React architecture. - Solid understanding of REST APIs and frontend-backend integration. - Experience building complex, interactive user interfaces. - Knowledge of frontend performance optimization. - Ability to work independently, estimate tasks, and propose technical solutions. - Experience with Git and collaborative development workflows. Nice to Have - Experience with Document Management Systems (DMS) or document-heavy applications. - Experience implementing file viewers and previews (PDF, images, Office documents, etc.). - Familiarity with libraries such as PDF.js, React PDF, or similar solutions. - Experience with file uploading, downloading, versioning, and document-related workflows. - Experience building interactive document viewers with annotations, highlighting, or other advanced features. - Understanding of handling large files and optimizing document rendering performance. Responsibilities - Develop and maintain frontend functionality using React and TypeScript. - Implement and improve file management interfaces and document preview components. - Integrate frontend features with backend APIs. - Build responsive, user-friendly interfaces for complex workflows. - Participate in technical discussions and suggest implementation approaches. - Ensure code quality, maintainability, and frontend performance. What We Offer - Part-time, project-based cooperation with a flexible workload. - Fully remote work. - Flexible working hours. - Direct communication with the technical team. - Opportunity to work on technically challenging features involving document processing and visualization. - Potential for further cooperation on other [компания] projects.