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Senior C# .NET Developer (Trading Systems)
Reference Number: 234945
Posted: 15 mei 2026- Form of employment: Tijdelijk
salary-rate: € 6000 - € 7800 
education: HBO- Industry: Financiele instellingen
experience: Medior
Full-time/Part-time: Fulltime
Specialisatie: Developer
Step into a high-impact engineering role at the heart of a mission-critical trading platform powering global financial markets. You will build and optimize low-latency systems where every millisecond matters,directly influencing real-time trading performance. This is a rare opportunity to combine deep technical challenges with tangible business impact.
- Develop and maintain high-performance trading applications using C# and .NET;
- Build and integrate real-time communication solutions using FIX protocol, WebSockets, and messaging systems;
- Design and implement scalable, low-latency architectures;
- Collaborate with international teams across multiple time zones;
- Contribute to front-end components using Angular, Blazor, or React;
- Ensure system reliability through testing, monitoring, and incident management;
- Document technical flows, APIs, and trading logic clearly.
header-over-companydesc
You will be part of an international financial organization operating in a highly dynamic and technology-driven environment. The company focuses on delivering reliable, high-performance systems that support global trading operations. Collaboration, innovation, and precision are key elements of the culture, with teams distributed across multiple regions.
header-requirements
- Experience with C# and .NET;
- Familiarity with building reliable, high-performing applications;
- Experience working with APIs and integrated systems;
- Comfortable working in a fast-paced and dynamic environment;
- Strong communication skills and ability to collaborate with international teams;
- Experience in a larger or complex IT environment.
- Knowledge of FX trading systems and FIX protocol
- Affinity with mathematical concepts or trading calculations
header-terms-cond
- All-in yearly salary up to approximately €95,000 (depending on experience);
- 12-month contract with option to extend;
- Hybrid working model (minimum 2–3 days on-site);
- International working environment with global collaboration;
- Opportunity to work on mission-critical trading systems;
- Access to professional development and knowledge sharing.
