Pros
Absolutely none- this is not hyperbole. See "Cons" for detail.
Cons
A quick snapshot of how ION operates: their most recent layoff occurred via email on a major holiday. It appears ION functions essentially as a mergers/acquisitions chop shop- the business model is to swoop in, acquire and reduce headcount by 1/3 - little more is produced aside from balance sheets, excel and powerpoint presentations and endless meetings. The end result is a Frankenstein’s monster. The recent ‘positive’ reviews on glassdoor seem coerced to offset previous bad reviews (also see Ion Trading/Ion Technology) Management is almost exclusively white, male, heteronormative that does little actual ‘work’- everything is smoke and mirrors; those who play the game remain to delegate rather than manage using over worked underpaid subordinates - women and marginalized folks are relegated to back office roles, referred to as ’girls’ and treated like pack-mule secretaries of another era. For those even remotely considering to join ION do so at your own peril knowing your days are numbered and you are nothing more than a number on a spread sheet in the finance department in Dublin. That is how ‘management’ values human beings. It is a culture formed and ruled by fear alternating with torpor- new hires are sub par because they are the only ones willing to accept below market pay and abysmal benefits; the business turns on a cycle of rotating grad hires who are built up to be star work horses when in reality ION was their third or forth choice as they couldn’t make the cut at first tier finance companies. Worst employment experience in my entire professional career. They win that hands down.