Real-Time WinForms UI Engineer (C#/.NET)

CSHARK; Wrocław; Hybrid; PLN 180,000 - 240,000; Full time

Benefits offered by this job

Remote‑first

Flexible hours

In-house tech workshops

Job summary

CSHARK in Wrocław is seeking an experienced .NET WinForms Developer to join the frontendengineering team and help build high-performance, real-time trading applications.

This role focuses on crafting fast, responsive, custom-rendered desktop UI, not just configuring UI frameworks. You will work with real-time data, multi-threaded UI updates, and close collaboration with C++ backend engineers to maintain low-latency communication.

Qualifications

• 5+ years hands-on experience developing desktop applications in C#/.NET (preferably .NET 8).
• Proven experience building custom UI controls from scratch (not DevExpress/Telerik/Infragistics).
• Experience with continuous real-time data streams where data is pushed to UI.
• Strong understanding of multi-threaded UI applications and safe cross-thread updates.
• Practical experience in UI performance optimization (reducing redraw cost, GC pressure, batching).
• Experience with TCP/socket-based communication.

Responsibilities

• Design, implement and optimize custom WinForms controls (charts, grids, visual components).
• Work with continuous real-time data streams and ensure ultra-responsive UI under load.
• Ensure smooth multi-threaded UI updates without blocking or freezing.
• Collaborate with backend engineers (C++ systems) for low-latency TCP/socket communication.
• Profile, debug, and tune rendering performance (GC pressure, paint cost, batching, flicker control).
• Improve engineering practices and influence UI architecture and usability.

Skills

5+ years

desktop apps in C#/.NET

custom WinForms controls

real-time data streams

multithreaded UI

C++ interoperability

TCP/socket communication

UI performance optimization

Job description

CSHARK in Wrocław is seeking an experienced .NET WinForms Developer to join the frontendengineering team and help build high-performance, real-time trading applications.

This role focuses on crafting fast, responsive, custom-rendered desktop UI, not just configuring UI frameworks. You will work with real-time data, multi-threaded UI updates, and close collaboration with C++ backend engineers to maintain low-latency communication.