Sales Driven Development (SDD) is not a new anti pattern, but one MM has perfected. You will hear how some in leadership used to be developers, however take the time to look at their LinkedIn profiles. All the startups that they were part of no longer exist or were a joke to begin with. The key to promotions is being a sales engineer (aka architect, principal, VP, SVP, C?O) or bully. You will have some fake title, but if you can do the deal then that will be your key to success at MM. True engineers evaporate like water from the dead sea. MM is only left with the salt (the dead sea effect).
The technology stack is a dated hodgepodge of JavaScript/TypeScript/Java. The Sr. and above level developers think they can create better software than proven stacks/frameworks. MM is the home of the square wheel. Being able to make a better mouse trap is being able to fully understand the problem domain and doing the proper R&D to evaluate if homemade truly is better. MM does not have the skills in house to do that, so they end up writing a poor imitation of a service bus for example. Hey, let's hard code everything to produce/ingest JSON instead of abstracting that away. Rookie architectural mistakes left and right. Perhaps MM should go back to their web scraping roots. They've never really matured.
Best practices are thrown out the window at MM. Requirements, analysis, unit tests, load testing, thread safety, encapsulation, loose coupling, retrospectives, etc. are a waste of time. Hacking up a solution or copy-n-paste programming are the norm. So if you come from an unstructured cowboy IT background then you will fit right in. However, if you come from a structured IT environment MM will seem alien.
QA is a joke that could be automated out of existence. If the tickets they create are legible then the steps to reproduce the issue will not be accurate, thus you'll be doing that too. Project Managers are completely worthless ticket pushers. They literally have no clue how to manage projects and spend most of their time on meetings with clients explaining why something was not delivered. Then they hire more worthless managers thinking this will help fix the broken processes.
HR feels the need to call you a Mad Mobiler like it's some kind of cult or culture thing. The culture is simple, do the sales deal at all costs or bully other employees. Sorry, your Mad Mobiler tag is creepy and immature. Some of us are adults and we just want to do our work and get paid without having to be part of selling junk (non-sales employees) or being bullied.
Be prepared for the HR response starting with how they are improving the Mad Mobiler experience. Also, note that the positive reviews are one liners. No one really tells you why it's so great at MM. Please do your homework on this place before making a career mistake.