Culture is very different by region - Engineer MongoDB Employee Review

Supportive people, a strong culture, and meaningful flexibility are the biggest positives. I've had the chance to work with thoughtful colleagues who care about doing good work and helping each other succeed. There are solid opportunities to learn, build relationships across teams, and contribute in a way that feels impactful.

Workloads can be heavy during busy periods, and priorities can sometimes shift quickly (which is expected in growing companies)

Remote work and decent pay

Really depends on the team, however middle management needs to be addressed. Toxic culture that truly depends on who your manager is. Silent layoffs are made to seem "Performance-based", then job is re-posted at a reduced range. Proceed with caution and understand that HR is not your friend.