Sr Billing Engineer

What You’ll Do

• 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
• Assist in month end close and compliance with internal controls, occasionally includes working evenings or weekends
• Assist in coordinating monthly billing cycles and issuance of system generated invoice attachments
• Configurate new billing models
• Analyze large datasets to troubleshoot billing discrepancies
• Take ownership of work and see it all the way through the software development life cycle
• Help to define non-functional requirements and build systems capable of meeting them
• Improve automation of our CI/CD processes
• Deliver API enabled components
• Migrate legacy applications to the cloud
• Provide mentoring and support to junior developers.

What You’ll Bring

Technical skills:

• 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

Non-Technical skills:

• Accuracy and attention to detail

• Managing several activities in parallel

• Organization, time management and prioritization abilities

• A can-do, problem-solving attitude

• Excellent communication and interpersonal skills

• Works effectively in a team setting

• Proactive and professional attitude

It is impossible to list every requirement for, or responsibility of, any position. Similarly, we cannot identify all the skills a position may require since job responsibilities and the Company’s needs may change over time. Therefore, the above job description is not comprehensive or exhaustive. The Company reserves the right to adjust, add to or eliminate any aspect of the above description. The Company also retains the right to require all employees to undertake additional or different job responsibilities when necessary to meet business needs.