 The earliest office recorded on this inscription was "quattuorviri viarum curandarum", one of the four boards that comprised the "vigintiviri"; membership in one of these was a required first step toward a gaining entry into the Roman Senate.His next recorded office was as quaestor of the public province of Achaea; upon completion of this traditional Republican magistracy he would be enrolled in the Senate.The inscription omits all mention of a term of service as military tribune; John D. Grainger speculates that Senecio may have served with Legio XXI Rapax, which was destroyed by the Iazyges in 92.