A native of Murmansk, Peshkov initially served with the Northern Fleet on surface ships, primarily minesweepers.

Having achieved this task, Peshhkov was appointed chief of staff and deputy commander of one of the fleet's minesweeper divisions.

[2] In 2012 Peshkov graduated from the Military Academy of the General Staff and was briefly appointed chief of staff and deputy commander of the Northern Fleet's missile ship division, before later that year becoming deputy commander of the fleet's Kola Flotilla of Mixed Forces [ru].

[1][5] Among the tasks taking place at the base during his time in charge was the deployment of minesweepers to detect and make safe old naval mines.

On 13 October 2020 Peshkov welcomed the Alexandrit-class minesweeper Aleksandr Obukhov back into port at Baltiysk.

[6] The Aleksandr Obukhov had been sweeping the waters outside the base, and had discovered 12 galvanic contact anchor mines dating from the Second World War, which were neutralized by detonation.

[6] The Baltic Naval Base was recognized as one of the fleet's best formations for 2020, having carried out a large number of successful cruises and exercises.