[4] He made his competitive debut for KB at the 2022 Brunei FA Cup first group match against Tutong Hotspurs in a 1–1 draw on 14 August.

[9] Jefri became the starting goalkeeper for Brunei at under-23 level in 2023, making the squad to compete at the 2023 AFF U-23 Championship held in Thailand in August of that year.

[13] A month later, almost the same side travelled to Jordan for the 2024 AFC U-23 Asian Cup qualification matches against three formidable Middle Eastern teams.

[15] Jefri became a surprise selection for the Brunei national team when the Wasps hosted both Laos and Maldives at a tri-nation tournament in September 2022.

[16] However despite consistently being in the national squad ever since, he could not dislodge the two senior goalkeepers Haimie Abdullah Nyaring and Ishyra Asmin Jabidi and he had to wait until 15 November 2024 for his international debut away against Russia in Krasnodar when both players were unavailable for selection.