.NET Developer

We are looking for a .NET Developer to join the front-office Trading Tool team that builds and maintains high-performance applications used by traders for market-making. You will work on a complex system combining WPF/DevExpress interfaces, browser-based tools, and integrations with multiple internal APIs. The team operates in a distributed setup between France and Poland.

The role requires working from the Warsaw office two to three days per week.

Your tasks

• Design, develop, test, and deploy high-performance trading applications operating in a multi-threaded environment

• Build and maintain WPF/DevExpress user interface components used by traders

• Translate technical and functional requirements into detailed user stories and collaborate closely with Agile Masters and Business Analysts

• Deliver and support applications through Continuous Delivery (DevOps)

• Maintain and improve production support tools and participate in non-regression testing

• Recommend and implement improvements to application performance, architecture, and development processes

• Provide clear and consistent progress updates to traders and stakeholders

Requirements

• Minimum 5 years of experience in backend C# development

• Strong understanding of multithreaded programming and microservices architecture

• Experience with WPF/DevExpress

• Fluency in English (spoken and written)

• Excellent communication and teamwork skills

• Proactive, solution-oriented, and collaborative mindset

• Open to a hybrid work model (2-3 days per week on-site)

• Fluent in Polish required

• Residing in Poland required