Rubuta ci gaba don wannan sakin layi - A watan Mayu 2014, an kira Ssewankambo zuwa tawagar Sweden U21 a karon farko. Ya fara bugawa ƙungiyar U21 ta ƙasa, yana zuwa a matsayin mai maye gurbin minti na 81, a cikin nasara 2<unk>0 a kan Sweden U21 a ranar 4 ga Yuni 2014. Watanni uku bayan haka a ranar 9 ga Satumba, 2014, Ssewankambo ya fara bugawa Sweden U21 wasa kuma ya buga wasan gaba daya, a wasan da suka yi nasara da Turkiyya U21. A cikin wasan da ya biyo baya, ya sake farawa don ƙungiyar U21 ta ƙasa kuma ya buga minti 73 kafin a maye gurbinsa, a cikin asarar 2<unk>0 a kan Faransa U21. A wasan dawowa, an sanya Ssewankambo a benci mai maye gurbin, yayin da kungiyar U21 ta kasa ta yi nasarar shawo kan rashi ta hanyar doke su 4<unk>1 don cancanta ga Gasar Zakarun Turai ta UEFA. Ya buga wasanni biyu don Sweden U21 tsakanin 11 ga Yuni 2015 da 16 ga Yuni 2015 a kan Denmark U21 da Albania U21. Koyaya, Ssewankambo bai shiga cikin ƙungiyar 'yan ƙasa ta U21 ba don Gasar Zakarun Turai ta Under-21 ta UEFA. Bayan ya shafe kusan shekara guda ba tare da ƙungiyar U21 ta ƙasa ba, ya fara bugawa Sweden U21 wasa, yana fara wasa da Serbia U21 a ranar 24 ga Maris, 2017, amma ya sami rauni wanda ya sa aka maye gurbinsa a minti na 10. A watan Mayun 2017, an kira Ssewankambo zuwa tawagar Sweden ta U21 don Gasar Zakarun Turai ta UEFA ta Under-21
Ka yi haƙuri. Koyaya, ya bayyana sau uku a matsayin wanda ba a yi amfani da shi ba, yayin da Sweden U21 aka fitar da ita a gasar Group Stage. Bayan wannan, Ssewankambo ya zama na yau da kullun ga ƙungiyar U21 ta ƙasa, yana yin farawa goma a jere tsakanin Satumba 2017 da Oktoba 2018. A lokacin, ya zira kwallaye na farko na Sweden U21, a cikin nasara 3<unk>0 a kan Malta U21 a ranar 10 ga Oktoba 2017. Koyaya a wasan da suka buga da Belgium U21 a ranar 16 ga Oktoba 2018, an fitar da Ssewankambo a minti na 41 don jan kati kai tsaye, a cikin rashin nasara na 3-0, a cikin abin da ya zama bayyanarsa ta ƙarshe ga ƙungiyar U21 ta ƙasa. Bayan wannan, ya ci gaba da yin wasanni ashirin da ɗaya kuma ya zira kwallaye sau ɗaya don Sweden U21.