We implement the solution for customers. The implementation time depends on the client and project. 

A large-scale implementation with different XMLs, different key messaging queues, and big data takes six months to a year. 

Deployment can be done in-house if you have dealt with a lot of ETL tools that are integration tools.

We are able to help clients implement the solution. 

As a consultant, I do the implementations myself, or a member of the team completes the implementation.

No vendor teams were harmed in the making of our projects.

I implemented Talend in-house / on-premises. I have no experience with using a Talend vendor for implementing a solution, though this may change in the near future. 

I observed the implementation, but normally, at least in the projects that I have, we bring in Talend engineers to set up the platform for us.

Deployment was a two-person job. There's a lot of coordination between the system administrators and the database administrators to get the connectors right. It's about a handful of people. Of course, that's not the same as the developers, but for our use case, it was a very small team that deployed it.

We implemented with a combination of a vendor team and our own in-house team. The vendor team level of expertise was low.