I agree with tour first guess. The original sentence is hard to translate because it confusing even in Portuguese. A empresa não trabalha AOS colaboradores - this doesn't make any sense. I guess what he/she is trying to say is that the company really makes an effort to support its employees. The expression stands benhing keeps the informallity of the speech.

And "colaboradores" has a slightly difference from "empregados". It says that the company somehow values them more than just a machinery workforce. From PT>EN I would use employees, but from EN>PT this may be somehing to consider. Colaboradores é "politicamente correto".

I hope this may help. =)

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Note added at 1 day 6 hrs (2019-10-15 11:38:02 GMT)
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For the general context, the employee is probably referring to the social and financial benefits that the company provides, such as good health insurance, meals and transportations services, bonus, and so on.

The expression "com muito peito" here is used at a very informal level of speech, as if the company would take on all the world to treat its employees as well as possible, to defend them from harm. It is good to remember that Brazil has been facing a huge economic crisis and that many factories had to let go of their employees. I don't know if this particular company was affected by the crisis but most of the big ones were.