Jančevski was named to the
Australia U17 (Junior Matildas) squad, which competed at
2019 AFC U-16 Women's Championship qualifiers (first round) held in
Kyrgyzstan from 15 to 23 September 2018. She scored six goals across four matches; her team won all their games against Palestine (11–0),
Indonesia (11-0),
Kyrgyzstan (10–0, hosts) and Chinese Taipei (7-0). In the
second round in
Laos during March 2019, the Young Matildas won all three matches and qualified for
2019 AFC U-16 Women's Championship. At the final tournament from 15 to 28 September in
Thailand, the forward scored two further goals in their win against
the hosts (6–1), where she was awarded Most Valuable Player. The team reached the semi-finals and finished fourth. The player was named to
Australia women's national under-20 soccer team (Young Matildas) training camp from 30 May to 3 June 2022 in Blacktown, Sydney ahead of
2022 FIFA U-20 Women's World Cup in
Costa Rica. However, she was not a member of the final 21-player
squad in August. At the
2025 ASEAN Women's Championship in
Vietnam in August, Jančevski, as a forward, joined the
Australia U23 squad, which competed against senior national teams in
Group B. She scored the winning goal in their match against
Philippines, and two more in their 9–0 defeat of
Timor Leste to reach the semi-finals. For her performances against both Philippines and Timor-Leste, she was awarded Player of the Match. Australia U23 were crowned champions after defeating
Myanmar 1–0 in the
final. Jančevski was named Rising Star of the Tournament. ==Honours==