Hello sir, how are you.? hope you are doing great.!!
we have not worked on turbulenz engine but we have experience working in most of the required skills like nodejs, mongoose/mongodb, express, javascript, jquery, HTML5/ css3, passportjs in addition to that we also know angularjs to to control the whole app from frontend.
About the Turbulenz i have seen on their website they have SDK and samples, lessions are also available so i think it will not be hard to develop a game that you want to develop.
i am really interested to work on such a project and waiting to discuss further.
we are in this industry since 7 years and knows many of the frameworks and technology, so it will be very easy for us to cope up with any new technologies that is introduced.
you can also read our feedbacks on the freelancer to know more about us.
looking forward to hear from you.
Thanks,
jExplorer