Adin Mauer, 28-29, was born and grew up in Israel. He served in the Israeli military from 2014 to 2019, including as a platoon commander and operations officer, according to his CV. After doing so, Mauer moved to Canada and completed a bachelor of applied sciences at the University of British Columbia (UBC). His LinkedIn profile notes that he works at AMD, a technology company with a location in Vancouver.

Mauer was featured in an Oct. 15, 2023 article from CTV News about men from Vancouver enlisting or re-enlisting in the Israeli military. The article states, “Adin Mauer is in his fourth year of computer science at the University of British Columbia, but knew he needed to step away. ‘Sunday morning, I was supposed to be in a study group to do an assignment in algorithms and there was no way that was going to happen,’ said the 27-year-old Israeli. Mauer, who grew up in Israel and already completed mandatory military service, says he lost friends in the Hamas slaughter that killed at least 1,400 people, many of them civilian women, children and babies. ‘I couldn’t, as an Israeli, as someone who served in the army, sit and watch what was happening.’ Mauer couldn’t divulge specifics, but told CTV News he’s in the warzone located near the south of the Gaza border.”

A December 2023 article from Jewish Vancouver stated that Mauer was one of about 30 men from Vancouver that had gone to join the military since October 8 of that year.

In January 2024, Hillel BC, a Jewish organization on the UBC campus held an event titled “Voices from the Frontlines: An Exclusive Israel Update and Insights from the Ground⁠,” which featured Mauer. The event was protested by several other groups on campus.