Senior .NET Developer (Fintech)

TL;DR

Senior .NET Developer (Fintech): Developing and evolving a Portfolio Management System with an accent on backend services, desktop user interfaces, and system integration. Focus on designing reliable WCF/REST APIs, implementing WPF applications, and managing data-intensive workflows.

Location: Must be based in Poland (Remote or Hybrid in Krakow, Lodz, Lublin, Warsaw, Wroclaw)

Company

hirify.global is a global IT consultancy providing professional software engineering services for complex business systems.

What you will do

• Design and develop backend services using C# and .NET.
• Develop, support, and enhance WCF services and RESTful APIs for reliable internal and external integrations.
• Create and maintain desktop applications utilizing WPF and VSTO.
• Integrate asynchronous messaging solutions using RabbitMQ.
• Work with MS SQL Server using Entity Framework and ADO.NET for data management.
• Collaborate on architectural decisions and ensure smooth delivery via CI/CD pipelines.

Requirements

• Commercial experience with C# and the .NET platform.
• Hands-on experience developing VSTO-based solutions and WPF desktop applications.
• Proven experience in building backend applications and RESTful APIs.
• Practical experience with WCF services, Entity Framework, and ADO.NET.
• Strong knowledge of MS SQL Server and relational database design.
• Understanding of RabbitMQ and automated CI/CD delivery pipelines.

Nice to have

• Experience with large-scale enterprise-level systems.
• Ability to maintain legacy applications alongside new development.
• Knowledge of application performance optimization and troubleshooting.

Culture & Benefits

• Vacation and sick pay provided according to the laws of your country.
• Health insurance assistance for employees and their families.
• Paid time off for state holidays regardless of the client's schedule.
• Engaging corporate culture with large parties and regular team get-togethers.
• Financial support for IT certifications and access to premium learning platforms.