Jewish Biblical prophecies state:

Before the time of the mashiach, there shall be war and suffering (Ezekiel 38:16), the mashiach will bring about the political and spiritual redemption of the Jewish people by bringing us back to Israel and restoring Jerusalem (Isaiah 11:11-12; Jeremiah 23:8; 30:3; Hosea 3:4-5). He will establish a government in Israel that will be the center of all world government, both for Jews and gentiles (Isaiah 2:2-4; 11:10; 42:1). He will rebuild the Temple and re-establish its worship (Jeremiah 33:18). He will restore the religious court system of Israel and establish Jewish law as the law of the land (Jeremiah 33:15).

Jews do not believe that Jesus was the mashiach because JESUS DID NONE OF THESE THINGS!

So how did Christians justify Jesus being messiah? By bullshitting. Seriously. They said things like "Well, Jesus's body is Israel, and since all men must follow him, this satisfies the requirement that he make Israel the leading nation".

Look up JewTube videos about why Jews don't think Jesus is messiah, and read the comments if you want a few good long laughs.