Nild has a Thai father and an American mother. In April 2017, she received her first senior call-up for Thailand. On April 3, she scored on her debut in a 6–0 victory against Palestine. In March 2018, she was named in the squad for the 2018 AFC Women's Asian Cup. She scored twice in a 6–1 win over Jordan on April 9 and played a role in all three goals against the Philippines on April 12. Thailand, with one defeat and two wins, finished second in the group and qualified for the 2019 FIFA Women's World Cup. In June 2018, she was named in the squad for the 2018 AFF Women's Championship. On July 4, she made her first appearance in the tournament, scoring four goals in an 11–0 victory against Cambodia. She finished the tournament with six goals in 5 appearances, helping Thailand claim their third AFF title in a row. In August 2018, she was named in the squad for the 2018 Asian Games. She made two appearances in the tournament, scoring a goal in a 3–2 loss to Vietnam. In February 2019, she was named in the squad for the 2019 Cyprus Women's Cup. She finished the tournament with one goal in four appearances.