Developer C# / .NET as Freelancer (all genders)

Vexcash AG · Berlin · posted today ago

engineering dotnet remote jobs in germany

Listing supplied by Arbeitnow. 101 Careers did not originate this post and applications are handled by the employer.

About this role

About Vexcash AG

VEXCASH AG is Germany’s leading online provider of short-term loans. We offer our customers a quick and straightforward solution to bridge the gap until their next payday. More than 800,000 customers already rely on our service. Thanks to our innovative approach, they can secure financial liquidity without having to commit to a long-term agreement.

We are looking for an experienced Developer C# / .NET to join our team and contribute to the development of modern, reliable, and scalable web applications in the FinTech sector as Freelancer.

You will work in a skilled and collaborative environment using modern Microsoft technologies, primarily .NET 8+ and ASP.NET Core. Your main focus will be on designing and developing robust backend services, APIs, and data-driven applications while ensuring high standards of code quality, performance, security, and maintainability.

Your responsibilities

Develop clean, maintainable, testable, and reusable C# code based on business requirements and user stories
Design, develop, and maintain backend applications and services using .NET 8+, ASP.NET Core, and Entity Framework Core
Design and implement RESTful APIs following best practices and scalable architecture principles
Work with SQL Server, including data modelling, query optimization, and performance tuning
Work with Entity Framework Core and ADO.NET for efficient data access and persistence
Implement automated unit and integration tests to ensure software quality and reliability
Apply software architecture principles, design patterns, and clean code practices
Collaborate using Git-based workflows and participate in code reviews
Contribute to CI/CD pipelines and automated deployments
Work with Microsoft Azure services and cloud-based architectures
Analyze, troubleshoot, and resolve technical, functional, and performance issues
Contribute to the continuous improvement of code quality, architecture, scalability, and development processes

What you bring

Strong professional experience with C# and the .NET ecosystem
Hands-on experience with .NET Framework, including maintenance and enhancement of legacy applications
Strong experience with .NET 8+ and ASP.NET Core for modern backend development
Solid experience with Entity Framework Core and ADO.NET
Proven experience designing and building RESTful APIs
Strong knowledge of SQL Server, relational database design, and query optimization
Good understanding of software architecture principles, design patterns, and clean code
Experience with automated testing frameworks such as xUnit, NUnit, or MSTest
Experience using Git in collaborative development environments
Familiarity with CI/CD pipelines and automated deployment processes
Experience with Microsoft Azure and cloud-based application architectures
Experience working in agile development environments
Strong analytical and problem-solving skills with a strong focus on code quality
Good command of English, German is a plus