RESPONSIBILITIES
* Design, develop and maintain backend services using C#, .
NET Core and ASP.
NET Core.
* Build scalable REST APIs and microservices-based architectures.
* Develop distributed systems and event-driven integrations using messaging technologies.
* Implement multithreading, concurrency and asynchronous programming solutions.
* Optimise application performance, scalability and reliability.
* Work with SQL and NoSQL databases.
* Apply Clean Architecture, SOLID principles and software engineering best practices.
* Implement automated testing and contribute to CI/CD processes.
* Troubleshoot production issues and collaborate with international technical teams. REQUIREMENTS
* 5+ years of professional software development experience, with strong expertise in C# and .
NET.
* Solid experience with .
NET Core, ASP.
NET Core and REST APIs.
* Proven experience with microservices and distributed systems.
* Strong knowledge of multithreading, asynchronous programming and concurrency.
* Experience with event-driven architectures and messaging technologies such as RabbitMQ, TIBCO, SignalR or equivalent.
* Experience with SQL and NoSQL databases.
* Knowledge of SOLID principles, Clean Architecture and design patterns.
* Experience with Docker,



automated testing and CI/CD pipelines.
* Experience supporting and troubleshooting applications in production.
* Experience working in Agile environments.
* Advanced English. NICE TO HAVE
* Experience in Financial Services, Fixed Income or Electronic Trading.
* Knowledge of trading platforms, pricing systems or RFQ workflows.
* Experience with AWS.
* Knowledge of Infrastructure as Code (IaC) and observability tools.
* Experience with JavaScript and SPA frameworks. WORKING CONDITIONS

Location:
Spain, Portugal, Poland or United Kingdom. Project: International greenfield Electronic Trading platform. Working language: English.

WHAT WE OFFER
* International project within the financial sector.
* Opportunity to build a new trading platform using modern .
NET technologies.
* Technically challenging environment focused on distributed systems, scalability and performance.
* Collaboration with experienced international engineering teams.
* Active involvement in technical design and architectural decisions.
* Close support throughout the recruitment process. Para ejercer sus derechos de acceso, rectificación, cancelación y oposición, puede escribir a. #J-18808-Ljbffr

📌 Senior Backend Engineer .NET (España)
🏢 VORTECH PCI GROUP
📍 España