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Frontend Engineer (C# and React)

IO Tech Solutions Limited
Hong Kong, Hong Kong
On-site

About this role

Frontend Engineer (C# and React)

Key Responsibilities

  • Develop and maintain modern, responsive web applications using React and TypeScript.

  • Integrate and collaborate with backend systems built in C#/.NET.

  • Deliver clean, maintainable code with a focus on performance and usability.

  • Partner with engineering, infrastructure, and trading teams to understand user needs and translate them into robust frontend solutions.

  • Ensure quality through unit testing, integration testing, and code reviews.

  • Work in a fast-paced environment where reliability and speed are critical.

  • Ideal Candidate

  • Solid commercial experience building frontend applications with React and TypeScript.

  • Strong programming background in C# and experience working with .NET-based APIs or services.

  • Comfortable working with real-time data and large-scale UI components.

  • Good understanding of software design principles, testing, and modern development workflows (Git, CI/CD).

  • Experience in performance tuning and optimizing UI/UX for responsiveness.

  • Strong communication skills and a proactive, team-oriented mindset.

  • Degree in Computer Science, Engineering, or a related technical field.

  • Nice to Have

  • Exposure to trading systems, financial data, or real-time analytics platforms.

  • Familiarity with WebSocket, SignalR, or similar real-time messaging tools.

  • Experience in high-performance or low-latency application environments.

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