This Decision concerns a Complaint filed by Himadri K. Das against RCS Corporation, his former employer, and Parsons Infrastructure and Technology Group, Inc. (Parsons), under the Department of Energy=s (DOE) Contractor Employee Protection Program regulations found at 10 C.F.R. Part 708. RCS is professional staffing company that identifies and hires personnel for its clients. At all times relevant to this proceeding, Parsons was a DOE contractor operating in Aiken, South Carolina, and was a client of RCS. RCS hired Mr. Das to provided his services to Parsons as a mechanical engineer. Mr. Das contends that during his placement with Parsons, he engaged in protected activity and, as a consequence, suffered reprisal by RCS and Parsons. Among the remedies that the Complainant seeks are reinstatement, back pay, and reimbursement for legal and other expenses. As discussed below, I have concluded that Mr. Das is not entitled to the relief that he seeks.