C#UI Developer

MA CAPITAL U.S. LLC; Polska; On-site; PLN 120,000 - 180,000; Full time

Job summary

MA Capital U.S. LLC is seeking a C# UI Developer to design high-performance, real-time trading interfaces. You will partner with traders and engineers to build low-latency desktop tools for monitoring positions, executing trades, and analyzing streaming data.

You should be proficient in C#, WPF, and real-time data visualization, with experience integrating live feeds via WebSocket or gRPC. The role offers a startup-like environment with agile processes and opportunities to advance your career.

Qualifications

• Strong experience in C# desktop application development with a focus on real-time data visualization.
• Proficiency in handling streaming data via WebSocket, gRPC, or custom TCP/UDP protocols.
• UX for time-sensitive, data-heavy trading environments with efficient layouts and clear visuals.
• Experience with statistics, modelling, or machine learning for trading systems is a plus.
• Knowledge of Python-based visualization is a plus.
• Startup/entrepreneurial environment with agile practices and rapid decision-making.
• Efficient infrastructure for ultra-low-latency, high-performance trading.

Responsibilities

• Design and implement responsive, high-performance trading interfaces in C# and WPF.
• Integrate live market data, position monitoring, and trading controls into desktop apps.
• Collaborate with backend engineers and traders to deliver data-rich, low-latency tools.

Skills

C# desktop

WPF

Real-time data

Streaming data

UX for trading

Data visualization

Tools

WebSocket

gRPC

TCP/UDP

Job description

MA Capital is a proprietary trading firm specializing in systematic and high-performing discretionary strategies across multiple asset classes. We leverage advanced technology, quantitative research, and sophisticated models to capitalize on opportunities in global markets. Our culture is built on innovation, efficiency, and transparency. We are committed to providing liquidity and supporting fair, efficient markets, while ensuring our traders and professionals have flexibility, tools, and continuous learning opportunities to succeed.

Position Overview

We are seeking a C# UI Developer to design high-performance, responsive trading tools that bring real-time market data to life. You'll work closely with traders and engineers to create sleek, low-latency interfaces for monitoring positions, executing trades, and analyzing data. Ideal candidates are C# pros, skilled in streaming data integration, and passionate about designing intuitive, data-heavy applications.

MA Capital employs individuals with a passion for innovation and solving hard problems. If looking for a firm where you can make your mark or take a strategy to the next level MA Capital is your home.

Responsibilities

Interface Development: Design and implement responsive, high-performance trading and analytics interfaces using C# and WPF.

Real-Time Integration: Integrate live market data, position monitoring, and execution controls into desktop applications.

Collaboration: Work closely with backend developers and traders to deliver intuitive, low-latency, and data-rich tools.

Required Experience

Programming: Strong experience in C# desktop application development with a focus on real-time data visualization.

Data Integration: Proficiency in handling streaming data via WebSocket, gRPC, or custom TCP/UDP protocols.

UX for Trading: Understanding of UX principles for data-heavy, time-sensitive trading environments, including efficient layouts, responsiveness, and visual clarity.

Quantitative Techniques: Expertise in statistical modeling, signal processing, or machine learning for trading systems is a plus.

Visualization Tools: Knowledge of visualization in Python is a plus.

Professional Development: Opportunities to grow cutting-edge technology and infrastructure to advance your career.

Startup Environment: Agile and entrepreneurial setup, allowing for flexibility and rapid decisionmaking.

Efficient Infrastructure: Proprietary platform for systematic trading with plug-and-play access to major global exchanges. Built for ultra-low latency and fast execution in HFT environments.