Senior C# Engineer (Trading Systems)

Work for a top North American bank remotely from Poland, building FX electronic trading systems with ultra-low-latency architectures and real-time market data.

• 7+ years of professional C# .NET development experience including algorithms, complexity, multi-threading, and familiarity with Java libraries.
• Good knowledge of data structures and the .NET collections library.
• Proven experience building backend services for front-office trading systems.
• Deep understanding of front-office workflows and electronic trading platforms.
• Experience developing or contributing to an electronic trading system.
• Expertise in multi-threading, event-driven systems, and performance tuning.
• Ability to break down complex workflows into maintainable, high-quality solutions.
• Strong communication skills for trader-facing environments.
• Knowledge of building low-latency (microseconds) trading systems.
• Familiarity with the FIX protocol.
• Ability to align work hours with 6-hour overlap with US Eastern business hours.

Nice to have:

• Familiarity with Broadway FX.
• Knowledge of Java.
• A computer science degree from a top Polish school.

• Design and implement robust software solutions for FX trading systems using C# .NET.
• Collaborate with other teams to research and implement changes to the trading system.
• Create thorough test cases to ensure software stability and reliability.
• Collaborate with operations teams regarding building new features and improving existing functionality.
• Support production issues, including independently completing root-cause analysis and diagnosis.
• Process business requirements with minimal guidance, derive implementation proposals, and implement them with a team or individually.
• Mentor junior developers.

Only open to residents of Poland, including Polish citizens and legal residents with permission to work in Poland. Successful candidates must pass a standard background check.