Senior Full-Stack Developer (.Net and React) - Remote

Overview

As a Senior Full-Stack Developer, you will play a key role in designing, developing, and maintaining high-traffic, customer-facing applications across international markets including the United Kingdom, Germany, Spain, France and Japan. You'll work across the stack with React, .NET Core, .NET 6 and C#, contributing to feature development and AI-driven enhancements.

In Short

• Design, develop, and maintain scalable full-stack web applications using React, .NET Core, .NET 6+
• Collaborate with Product, UX, and Engineering to clarify business requirements and plan technical solutions
• Write clean, testable, and maintainable code with appropriate unit and integration tests
• Participate in peer code reviews and help mentor junior developers
• Support and improve CI/CD pipelines, monitor production systems, and ensure system performance and stability
• Participate in research and implementation of AI-generated content and LLM-based flows
• Continuously look for ways to improve deployment frequency, code quality, and overall team velocity

Requirements

• 5+ years of commercial experience in full-stack development
• Strong experience with .NET Core, C#, and React
• Experience with web services, REST APIs, and asynchronous backend architecture
• Hands-on experience with automated testing tools such as Jest/Vitest, Playwright and NUnit
• Experience working in an Agile environment with continuous integration and delivery
• Upper-Intermediate level of English or higher
• Proven ability to work independently, creatively solve problems, and collaborate effectively across teams
• Demonstrated curiosity for learning new technologies and contributing to a culture of innovation

Benefits

• Time off throughout the year (paid and unpaid)
• Professional development support and encouragement
• Resources to help improve your overall well-being
• Free membership to dive into JA product