Senior Billing Engineer - .NET, SQL & Cloud Integrations

Solera Corporation; Polska; Hybrid; PLN 90,000 - 130,000; Full time

Job summary

Solera Corporation offers a remote mid developer / data analyst role focused on C#/.NET technologies and data-driven solutions. You will design, develop, and maintain software while analyzing large datasets, supporting billing processes, and collaborating with global teams.

The position requires strong T-SQL, .NET/C#, and BI tooling experience, plus English fluency and a can-do mindset. A flexible, remote setup and ongoing learning opportunities are provided.

Qualifications

• Strong knowledge of Transact-SQL.
• Strong knowledge of .NET/C# and ASP.NET WebAPI (or ASP.NET Core).
• Fluency in English; German language knowledge is nice to have.
• Experience with C#, TDD/BDD, SQL Server databases and REST/SOAP webservices.
• Ability to create PowerBI/JasperReport reports; Intermediate MS Excel knowledge.
• At least 5 years of professional experience in all of the above.

Responsibilities

• Design, develop, test, and maintain applications using C#, .NET Core/.NET 6+, ASP.NET Core MVC, and Web APIs.
• Create clean, maintainable, well-structured code following best practices and coding standards.
• Develop queries, stored procedures, and data model.
• Participate in system design, architecture discussions, and solution planning.
• Implement secure and scalable patterns, including dependency injection, configuration management, and logging.
• Integrate applications with databases, cloud services, third-party APIs, and identity providers.
• Translate business requirements into technical solutions.
• Develop additional features on existing applications.
• Investigate and resolve defects in the established system.
• Deliver operationally stable software and help to ensure uptime.

Skills

Transact-SQL

.NET/C#

English fluency

German knowledge (nice to have)

C# testing (TDD/BDD)

SQL Server

REST/SOAP web services

Power BI/JasperReports

MS Excel (intermediate)

5+ years experience

Job description

Solera Corporation offers a remote mid developer / data analyst role focused on C#/.NET technologies and data-driven solutions. You will design, develop, and maintain software while analyzing large datasets, supporting billing processes, and collaborating with global teams.

The position requires strong T-SQL, .NET/C#, and BI tooling experience, plus English fluency and a can-do mindset. A flexible, remote setup and ongoing learning opportunities are provided.