I received the following information from Dr. Ravi Subramaniam this morning.
The EPA has an "announcement out to fill a Cancer Biologist position at the GS-13 level in the IRIS Division. I would appreciate help in bringing this to the attention of scientists who may be interested. The position closes on May 13. Duty locations are either Arlington or RTP. I am attaching the job announcement (RTP-ORD-DE-2016-0043), and it can be found at https://www.usajobs.gov/GetJob/ViewDetails/436873500/ ".