The Department of Defense is offering its civilian employees an opportunity to volunteer with Homeland Security, working directly with ICE and Customs and Border Protection (CBP) agents on the front lines of the Trump administration’s immigration crackdown.

A U.S. defense official told Fox News Digital the volunteers will serve in critical support roles for up to 180 days at an ICE or CBP facility.

“Candidates should be committed to improving the efficiency of the Federal government, passionate about the ideals of our American republic, and committed to upholding the rule of law and the United States Constitution,” according to a listing posted on USA Jobs, an official government website.

Travel, lodging and per diem may be reimbursed by the receiving agency, and the salary is listed as $25,684 to $191,900 per year, according to the listing.

As of Wednesday afternoon, the site was still accepting applications.

Applications will be reviewed and submitted to DHS as they are received, according to the site. The closing date, which was not listed, may be extended to meet volunteer staffing needs.

DHS, ICE and CBP did not immediately respond to additional inquiries from Fox News Digital.