As longer as you are not advising on any haram benefits or bonuses then, it is fine.
As for working in such company in itself, if the software they are selling is mainly to help with the performance of financial companies only, then I would not advice to take up a job there.
However, given the current economic climate, and since the role itself may be permissible, then it would be acceptable to apply for such a job. However, as I always advice, try to always find a better alternative which is more shariah compliant and with an decent salary or better.