Rubuta ci gaba don wannan sakin layi - Marwa ya yi aiki a matsayin alkalin wasa na FIFA tun 2011. Shi ne jami'in kwallon kafa na Kenya na farko da ya shiga cikin duk wata gasa ta FIFA, bayan da ya fito a gasar cin kofin duniya ta FIFA U-17. An nada shi a matsayin mataimakin alkalin wasa a gasar cin kofin Afirka ta 2012 da 2013. An nada Marwa a matsayin jami'in ajiya a gasar cin kofin duniya ta FIFA ta 2014 kuma mataimakin alkalin wasa a gasar cin kofin duniya ta FIFA ta 2016.
Ka yi haƙuri. An hada shi a matsayin mataimakin alkalin wasa na CAF a gasar cin kofin FIFA ta 2017, inda ya yi aiki tare da Bakary Gassama, Jean-Claude Birumushahu da Malang Diedhiou.