Pros
The work is very impactful and, for the time being, there are plenty of opportunities to learn from experts in many fields.
Cons
Where to begin? Well they are seemingly taking a sledgehammer to benefits across the board. Take any benefit: Promotions, 401k, PTOB, Number of holidays, WFH benefits, Financial awards, etc. You name it and they have recently made it much much worse. One such example is that they are now making all employees come in 50%+ of their time (as measured by hours) AND every employee must come on each and every Wednesday. Why Wednesday? No reason, this is apparently just to make your life complicated. What happens if it snows? or you're sick? No one has any idea. Zero communication. Just pray that your dept manager doesn't have it out for you I guess. Surely the CEO must have held an all hands to go over this recent benefit change and take employee questions? YES! He did! but instead of even talking about this new policy at all or the plethora of other problems that people have he just stalled, said the company was financially doing the best it has even been and then spent 30+ mins asking random employees if their favorite season was Autumn or Spring. I wish I was kidding. I wouldn't even call the CEO divisive because that would imply that there are those that think he is doing a good job. Everyone agrees that is not the case. The constant attacks on benefits and terrible communication has lead to an incredible number of people quitting to work elsewhere. It seriously feel like every month you hear about another 5-10+ year employee leaving for at a 25+% raise. Employees are now in the phase of looking around wondering who is the next to leave. It's depressing, and sadly I'm sure MITRE is well aware of this, the cost savings here is probably the point. If you get a job offer for MITRE then congratulations, use that to leverage any other job offer you can get elsewhere.