Senior React Developer

About Us

At UpScale, we combine experienced professionals and modern technology to create real business value. We develop AI-powered products and solutions that solve complex business challenges.

We are looking for a Senior React Developer to join our AI-focused product development team. You will work on production-level AI applications, contribute to frontend architecture and technical decisions, and help shape our React development standards.

If you enjoy taking ownership, solving complex technical challenges, and working with modern technologies, we’d be happy to welcome you to our team!

As a Senior React Developer, you will:

• Develop and maintain React + TypeScript applications
• Build frontend features for products integrating AI capabilities
• Contribute to frontend architecture and technical decisions
• Design scalable client-side state management solutions using Redux Toolkit or modern alternatives
• Integrate frontend applications with RESTful backend services and WebSocket-based real-time communication
• Integrate browser-based audio and multimedia capabilities
• Improve React application performance and frontend code quality
• Develop automated UI, component, and integration tests using frontend testing frameworks
• Contribute to frontend CI/CD pipelines, code quality, and development standards
• Collaborate with Backend, QA, Product, and Architecture teams

You have

• 5+ years of professional software development experience
• Strong hands-on React experience in production environments
• Strong TypeScript knowledge
• Experience with Redux / Redux Toolkit or similar solutions
• Solid frontend architecture and REST API experience
• Experience with automated frontend testing
• Familiarity with CI/CD, Git and modern development workflows
• Experience with React performance optimization
• Experience with WebSocket or other real-time technologies
• Strong problem-solving, communication, and collaboration skills
• An ownership mindset and interest in technical leadership

It is a plus if you have:

• Experience with AI-powered applications
• AI, voice, audio, or multimedia integration experience
• VAD (Voice Activity Detection) experience
• Enterprise-scale application experience
• AWS, Azure, or GCP experience
• Tech Lead experience

Why join us?

• Real technical ownership and influence on frontend architecture
• Work on modern AI-driven products
• Modern technologies including React, TypeScript, AI and cloud
• Professional growth and continuous learning
• Supportive, collaborative, knowledge-sharing team culture
• Stable, growing company with an innovative mindset
• Opportunities to work on both internal products and customer-facing solutions