In 2013, he graduated from Yanka Kupala University of Grodno and went to work as a history teacher at a school in Zhemyslavl. Soon after, Sergei became the first secretary of the Ivyevsky District Committee of the Belarusian Republican Youth Union (BRSM) and even joined the local executive committee's leadership reserve. In interviews with state-run media, he praised Belarusian stability and organized patriotic events.
However, after 2017, he left education. In February 2025, Pakhomov registered as a sole proprietor, listing roofing work as his primary activity.
In the winter of 2026, it became known that the 37-year-old man was in pretrial detention. He was charged under Article 130 of the Criminal Code of the Republic of Belarus ("inciting racial, national, religious, or other social hatred"). Although a sentence had not yet been handed down, the KGB had already included him on its list of "terrorists."
The exact reason for the criminal prosecution remains unknown. It's likely due to comments on a Telegram message from an unprotected account.
On March 19, 2026, he was pardoned after another visit to Minsk by US President Donald Trump's special representative, John Cole (among a group of 235 prisoners left in Belarus).
