  The purpose of this paper is to study pseudo-Euclidean and symplectic
Hom-alternative superalgebras and discuss some of their proprieties and provide
construction procedures. We also introduce the notion of Rota-Baxter operators
of pseudo-Euclidean Hom-alternative superalgebras of any weight and
Hom-post-alternative superalgebras. A Hom-post-alternative superalgebras
consists of three operations such that some compatibility conditions are
satisfied. We show that a weighted Rota-Baxter operator induces a
Hom-post-alternative superalgebra naturally. Conversely, a Hom-post-alternative
superalgebra gives rise to a new Hom-alternative superalgebra. In particular, a
Hom-pre-alternative superalgebra is naturally built via symplectic structures.
