Pros
Mediocre coffee and some free snacks.
Kontras
ESTsoft is a company on life support that should have been dead already. They know it, their remaining unhappy customers know it. There's no commitment to product enhancement, no vision for the future and a lot of fake career growth promises. Among the too many cons you can expect: Favoritism for a few individuals, unequal treatment between Korean employees and others, HORRIBLE pay, a lot of stupid "be quiet" rules, sexism to its fullest extent, management mistreatment (they will try to make you feel small and inferior), gossip environment, no communication between teams and did I mention horrible pay? NO 401k, no transparency.