Preheat oven 350 degrees. Grease an 8-inch round springform pan and line the base with parchment paper.
In a large bowl, combine gluten-free flour, almond flour, sugar, baking powder, salt and mix well.
In a separate bowl, mix orange juice, coconut oil, ground flaxseeds, vanilla, and orange zest.
Mix wet ingredients into dry ingredients until fully combined. Spoon mixture into baking pan and bake for 50 minutes or until a toothpick inserted in the center comes out smooth.
Remove cake from the oven, allow to cool completely before spreading the frosting.