Hi,
I've 10+ years experienece in java/jee application development, with databases like oracle, mysql and sybase. I've done many performance optimization at various level : like while using data structure in java code, or while doing joins in database. In oracle and sybase, I've done many query optimization using data shortening before doing cartesian product as a result of join. Í've also used Jprofiler to profile project to find out cpu usage, memory usage, objects creations and stack call count and time; on the database side I've done optimization by using temp table, indexes, hints, parallel processing etc, I can be a good help in your requirement of performance optimization.
I can deliver this project with best quality and and on time.
Thanks,
Birendra