I too am chartered, however I don't think this will help much as your exposure to the operation will be financially related, and their hiring requirements will be based solely upon your ATPL and flying skills.
At age 30, what sort of role are you looking for? You have presumably been in practice for over 5 years, so starting again in a financial role at any company would involve a considerable step down, coupled with nobody wishing to give you responsibility if they are aware that you could move to a flyign job at any time.
There is little financially in an airline that distinguishes it from any other company, and you are surely limiting options looking for an airline finance role rather than an aerospace finance role in one of the many support companies.
Consider instead exposure within your current role in practice, which surely gives you greater flexibility to fit in modular training?
Try a recruitment consultant, but I doubt there are many openings - you won't get into a finance role directly without going through one of them anyway.
Having said that, nobody will refuse the offer of you doing some more work in accountancy when in a flying career, but accountancy roles require regular hours, whereas you will be off operating the aircraft when they would need you doing the montly P&L or similar.
I would just leverage it to prove you can work under pressure.