What is manageEngine about ?

What is manageEngine about ?

Hello !
Thanks for your interest to reading my post.
I have received an invitation from a friend for attending an event of ManageEngine in Dubai - UAE. I did registered for that event and I am going to attend it, though I have no idea about this event and this product as well.
I am working in a software company in Dubai. I have a Bachelor degree in computer science and statistics, I have average experience in software development using .net technologies and also average experience in working with database management systems (Oracle and Sqlserver). In my current job, I went little bit for from development into dealing with clients, training, attending listening to thier problems, resolving the problems of the to type (How to), collect their requirements and reflecting them to the development team besides other administrative works. 
My friend told me that this event will be good for my career and it can help me find better opportunities ..etc. So, my question is " How can ManageEngine help me and Which product should I focus on?"
Thanks and regards
Yousif