Bachynska turned senior in 2019 and made her debut at the Ukrainian Championships. She finished second behind Angelina Radivilova. She later competed at the Baku World Cup where she qualified to the uneven bars and balance beam finals. She finished seventh in the uneven bars final and fourth in the balance beam final, incurring a 0.5 penalty for having her coach present on the podium. In April Bachynska competed at the 2019 European Championships where she placed fifth in the all-around and seventh on the balance beam.