A Burbank man was sentenced to 30 years in federal prison on Monday for producing pornography involving children he watched over while working as a nanny in Santa Monica and Van Nuys.

Travis Elconin, 35, pleaded guilty to federal child pornography charges in March. In addition to the prison sentence, he will spend the rest of his life under supervised release.

Elconin was employed as a nanny by several families, including his own friends, throughout Los Angeles County from August 2016 to November 2018 and advertised himself as the “perfect caretaker.”

During that time, he sexually abused and made pornographic videos with at least four children who were under his care, according to a copy of his plea agreement with the U.S. Attorney’s office.

The victims ranged from 4 to 8 years old.

Eight victims have been linked to him since his arrest earlier this year by federal agents.

While he was employed as a nanny in the Burbank area at the time of his arrest, a spokesman with the U.S. Attorney’s office said Elconin’s victims were in the Santa Monica and Van Nuys areas.

According to court documents, Elconin would make sexually explicit photos and videos of the children on his cellphone.

In one video, he walks up to a naked 8-year-old boy and begins touching his genitals. The boy repeatedly says “no” to him throughout the video.

Authorities said Elconin would share the pornographic images with at least two unidentified people through the encrypted messaging service WhatsApp.

He would also talk about making more pornography with the children.

Over a two-year period, Elconin exchanged more than 10,000 messages and images with suspected child-sex abusers in Germany, the U.S. Attorney’s office said.

Germany’s Bundeskriminalamt Police and the Santa Barbara County Sheriff’s Office assisted the FBI in investigating the case.