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Sr Billing Engineer

Virtual Poland💼 Full-time🗓 2026-02-24 → 2026-09-25

Core

Design, develop, test, and maintain financial systems and billing applications while analyzing datasets to troubleshoot billing discrepancies.

Role type

Senior IC billing engineer (financial systems)

Builds

Financial systems, billing applications, and cloud-migrated legacy applications

Domain

Financial services / Software engineering

Deliverable

production ML models | product features | dashboards & analysis

Required skills

C#, .NET Core/.NET 6+, ASP.NET Core MVC, Web APIs, Transact-SQL, SQL Server, REST/SOAP webservices, PowerBI, JasperReport, CI/CD automation, cloud migration

Preferred skills

German language knowledge, TDD/BDD, intermediate MS Excel

Technologies

C#, .NET Core, .NET 6+, ASP.NET Core MVC, Web APIs, SQL Server, PowerBI, JasperReport

Responsibilities

Design, develop, test, and maintain applications using C# and .NET; Develop queries, stored procedures, and data models; Integrate applications with databases, cloud services, and third-party APIs; Investigate and resolve defects in the established system; Assist in month-end close and compliance with internal controls; Coordinate monthly billing cycles and issuance of system-generated invoice attachments; Configure new billing models; Analyze large datasets to troubleshoot billing discrepancies; Migrate legacy applications to the cloud; Provide mentoring and support to junior developers.

Seniority

Senior, hands-on IC

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