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

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