Research the senior leadership team thoroughly via Google and Companieshouse before accepting an offer, many of them have questionable backgrounds, and a history of software plagiarism and lawsuits with previous business ventures. Furthermore, the product itself not a new or unique concept, and is poorly managed internally from a technical/IT perspective compared to most other SaaS firms of any size in the startup game.
The management way oversell the business potential, innovation, and overall benefits of this service to applicants and clientele, repeatedly using the phrase "fastest growing startup in London!!" (no.. its not..) . This is particularly manipulative to fresh graduates, or entry level career starters whom are unable to pick up the sales tactics used to lure them in.
On top of the fraudulent false advertising, the salaries are poor and below London standards, there were NO additional employee benefits, no personal development sessions with line managers, etc. They are simply focused on hiring as quickly as possible and closing out customers deals as quickly as possible (retention rate LOW btw), to give the facade of a bigger operation than they are to potential investors (they have very few backers).