Billing

Hi, I moved into a new role at a tech (hardware and software) company working on subscriptions billing, specifically invoicing and usage. One of the company's main products has a subscription but this is to support it. Our software besides the invoices are not really customer facing. Backend work entirely. Tech stack is mainly C# .NET 10 and SQL Server. Lots of new development work, good engineering practices, but some painful maintenance, especially with invoice templates. Wondering if this is a good place to grow as a newer engineer versus working on a product that makes the company money directly.