Senior C# Trading Systems Engineer

Vistulo (for a major N. American bank); Polska; Hybrid; PLN 220,000 - 360,000; Full time

Job summary

Vistulo is seeking a Senior C# .NET Backend Engineer to join a FX electronic trading systems project for a major North American bank. You will engineer low-latency backend services for market data and electronic trading.

This fully remote role is open to residents of Poland and Romania. You will collaborate directly with traders and product teams across North America and Europe, tackling performance challenges under real-time pressure.

Qualifications

• Experience building trading systems.
• Understanding of financial markets and FX trading is a plus.
• Strong problem-solving skills and performance profiling expertise.

Responsibilities

• Develop high-performance backend services for market data and electronic trading.
• Contribute to ultra-low-latency architectures and real-time data processing.
• Collaborate with traders, product teams, and cross-functional partners.

Skills

C#

.NET

Backend engineering

Low latency

Job description

Want to work on FX electronic trading systems at a top N. American Bank?

This isn’t just another dev role. It’s your chance to engineer the core of global trading.

We’re talking ultra-low-latency architectures, real-time market data, and speedy electronic trading, all in an environment where milliseconds matter, and billions move. You’ll work on building FX (forex) electronic trading systems.

If you thrive on complexity, love solving performance challenges under pressure, and want to collaborate directly with traders and product teams at the sharp edge of financial technology, this is your arena.

The Role at a Glance

• Senior C# .NET Backend Engineer
• Building a trading systems, including high-performance backend services for market data and electronic trading
• Fully remote for a top N. American bank (for residents of Poland or Romania)
• Part of the core team - this is not a legacy support role or an outsourced B team

This role requires experience building trading systems, and an understanding of financial markets. An ideal candidate will have worked on FX trading systems.

If you enjoy working on low-latency, high-throughput trading systems, join us and build the next generation of high-performance capital markets solutions.

Why Join Us?

• Work on a large-scale, low-latency trading system.
• No Legacy: Join an actively developed system. The engineers who built it originally are still on the team.
• Collaborate with a world-class team of developers across North America and Europe.
• Enjoy the stability of a long-term, fully remote role that only a bank can offer.

A successful candidate will be a very strong programmer with current C# development experience. They must also be curious, open-minded, and desire to learn new things. English proficiency is a must. If you’re fascinated by understanding systems ‘under the hood,’ this role is for you. Successful candidates enjoy geeking out about data structures and debugging application performance issues.

This is a fully remote role for a developer in Poland or Romania. You will be working through a Polish company that will provide the support and administrative assistance to make you successful in the role. We are looking for people to join the team long-term.

Only open to residents of Poland and Romania. Citizens and legal residents with permission to work in Poland or Romania are welcome.

What we offer

• Work that matters in the financial domain: You’ll be building a high-performance trading system at an established financial institution.
• Professional growth: Collaborate with smart, highly capable developers in a supportive and challenging environment.
• Direct collaboration: You will work directly with the client team in North America and in Europe.
• 1st-tier work: This is not a technical support or legacy maintenance role. The system is functional and is actively being built and you will take part in updating it. The people who built the system are still part of the team.
• Long-term commitment: This is not a fixed-scope or fixed-term outsourcing role; we value people who want to grow and contribute long-term.
• Flexibility & remote work: Fully remote position based in Poland or Romania.
• Competitive Compensation: Top pay and ample time-off options.