Fullstack Developer(React.js + .NET)

ALGOTEQUE Innovation Hub is developing a complex, production-grade web application for a strategic client in the aviation industry. The project requires reliability, security, and scalability, and involves working closely with an international product team in an agile environment.

• Strong hands-on experience with React in production environments
• TypeScript skills including typed components and generics
• Good understanding of REST API integration
• Familiarity with the BFF pattern and its role in frontend-backend communication
• Awareness of web security fundamentals, especially XSS attack prevention in React
• Experience with or genuine interest in C# / .NET and OOP principles (SOLID, DI, design patterns)
• Good command of English and Polish languages

• Develop and maintain high-quality frontend features using React and TypeScript
• Build reusable, scalable, and well-tested UI components following best practices in component architecture
• Implement and manage reactive state using RxJS
• Integrate REST APIs, handling authentication flows, error states, and async edge cases
• Collaborate closely with backend engineers on BFF layer design and implementation
• Ensure frontend security standards including XSS prevention, secure token handling, and CORS awareness
• Participate in code reviews and contribute to architectural decisions
• Work directly with an international product team in an agile environment
• Contribute to improving the code quality, performance, and maintainability of the application