Samarin changed coaches ahead of the 2014–15 season, joining Elena Buianova and Svetlana Sokolovskaya. He won bronze at his first Junior Grand Prix event of the season, in Courchevel, France, and then silver in Ostrava, Czech Republic. Making his senior international debut, he took silver in November at the 2014 Ice Challenge, an ISU Challenger Series (CS) competition in Graz, Austria, and finished eighth the following month at another CS event, the 2014 Golden Spin of Zagreb. Nationally, he finished eleventh on the senior level and second on the junior level. Concluding his season, he placed sixth in the short, ninth in the free, and eleventh overall at the 2015 World Junior Championships in Tallinn, Estonia.