Senior .NET Backend Engineer – Greenfield Electronic Trading

Vortech PCI Group S.L.; Valencia; On-site; EUR 70,000 - 100,000; Full time

Job summary

Vortech PCI Group is seeking a Senior .NET Backend Engineer to join an international project in the financial sector, focusing on building a greenfield Electronic Trading platform in the Fixed Income domain. The role targets high-performance backend systems, scalable architectures and solid experience with C#, .NET Core, and AWS.

As a hands-on senior engineer, you will work on REST APIs, microservices, event-driven integrations and CI/CD pipelines, collaborating with global teams and operating

Qualifications

• 5+ years of professional software development experience.
• Strong expertise in C# and .NET.
• Solid experience with .NET Core, ASP.NET Core and REST APIs.
• Proven experience with microservices and distributed systems.
• 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.

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.

Job description

Vortech PCI Group is seeking a Senior .NET Backend Engineer to join an international project in the financial sector, focusing on building a greenfield Electronic Trading platform in the Fixed Income domain. The role targets high-performance backend systems, scalable architectures and solid experience with C#, .NET Core, and AWS.

As a hands-on senior engineer, you will work on REST APIs, microservices, event-driven integrations and CI/CD pipelines, collaborating with global teams and operating