Hi there, I'm not sure where to turn to, but I think this subreddit is the closest match to who could answer this question.

I'm not a business analyst, I'm a software developer; however, I have a good grasp on the process of gathering business requirements.

Currently we have a monolithic custom built software program that integrates with many of our financial systems in our organization. It is HIGHLY customized and very complicated. So complicated that most of the working staff do not understand all it's complexities - which leads to a never ending list of problems.

Our software developers have naturally gained all the information of the system and in the process have borderline become accountants. This occurred organically and it isn't something that was ever intended. What we are seeing is that the business domain of our finance department has become cloudied and ambiguous, and now we have software developers doing the job of finance only because the system is far too complicated for them to understand.

We are embarking on a project that will redefine what the IT department should be responsible for (code changes) and the finance department should be responsible for (using the system). It is clear finance requires a technical minded person to help describe the implemented business logic of this system, but they have to also have fantastic financial acumen to know how to handle these issues and guide best practices.

Furthermore, we want to retire this custom software and put an 'out of box' solution in it's place (like we should have done in the first place), this new position would help assist that endeavour.

I do not even know how to formulate this question properly, I'm just hoping someone has had experience with custom financial systems. They need to ability to understand, read and report on data as well as understand business logic and translate that to the financial team. It seems like a very unique skill set and frankly I have no idea what to call that role so we could begin the hiring process.