I frequently speak at conferences around the world, mostly about large scale Data Warehousing and Business Intelligence.
Here are a few of the talks that I have given so far, or will give in the near future.

Understanding SSIS internals and performance tuning (full day training)

Relational Data Warehouse Performance Tuning

Bulk load and minimal logged inserts

Bulk load: methods for better data warehouse load performance

Integration Services (SSIS) for the DBA

Upgrading to SQL Server 2014

SSIS internals and performance

First look at the In-Memory OLTP database engine component in SQL Server 2014

10 tips and tricks for better SSIS performance

Layered Partitioning in SQL Server – manage very large data sets