Bryan Kohberger, the accused killer of four Idaho college kids, reportedly once bragged about his boxing routine, weight loss, and previous work as a “fish cutter” on a 2015 application for a job in his hometown school district.

Kohberger, 28, also listed a year of youth law enforcement training when he applied for a custodian, courier or security officer position at a business in Effort, Pennsylvania, according to Fox News.

He said his athletic pursuits taught him that “dedication and perseverance are the most important skills,”

“I learned how to patrol and do basic security procedures from my year in Law Enforcement,” Kohberger wrote.

“I was a boxer and am still a runner,” he continued. “I lost 130 lbs at age 15 into age 16 whilst attending school … I believe this is proof that I have the required dedication to be successful.”

The criminology Ph.D. student also said he “cut fish to the specifications of the customer” while working at Big Brown Fish & Pay Lakes in Effort, Pennsylvania.

And he was a champion “extemporaneous speaker,” he said.

He eventually got the job at the Pleasant Valley School District, where he worked as a part-time security guard, Fox News said. The district outfitted him with a pair of size 13 boots, several extra-large shirts, a jacket and pants.

But he resigned on June 22, 2021 for reasons that remain unclear. The district refused to elaborate and said his disciplinary records were exempt from release under the state’s public record laws.

Kohberger had been put on leave without pay in February 2021 for expired clearance, however. And in his resignation letter, he acknowledged his right to a public hearing before he could be fired, Fox News said.

“I understand that if I do not resign, I have a right to a school board hearing to determine if I should be dismissed from employment with the School District,” Kohberger wrote.

Kohberger — who began his doctoral studies at Washington State University last fall — has since been accused of murdering four students from the University of Idaho during an early morning home invasion just before Thanksgiving break.

Kohberger allegedly stabbed the victims to death, and left the bodies of Madison Mogen, 21; Kaylee Goncalves, 21; Xana Kernodle, 20; and Ethan Chapin, 20; in an off-campus rental home in Moscow, Idaho.

Prosecutors have charged him with four counts of first-degree murder — crimes for which he could face the death penalty if convicted.

His trial will likely start in October.

In retrospect, some of Kohberger’s resume might be fabricated.

Kohberger only worked at Big Brown Fish & Pay Lakes for a few weeks in 2011 — not the seven months he claimed, said Charles Conklin, the business’s founder.

And he apparently never filleted fish. He also claimed to have worked in the butcher and produce department at BJ’s Wholesale Club in Stroudsburg, where he allegedly packed, tagged and priced meat.

He left after four months to pursue work with his father, he wrote.