RobotWorld by Ray Verola
The year is 2075. Although it's against the law for robots to hold positions of power in the government and in large corporations, they have managed to do so largely because of the efforts of RobotWorld--one of the largest corporations on the planet. RW has created sentient robots that can totally pass for human.
Taylor Morris, a human, has risen rapidly up the RobotWorld hierarchy and has earned a life of privilege. But he laments the fact that he's had to compromise many of his personal values. When he goes too far in questioning RW's negative impact on humanity to Sophia Ross, RobotWorld's brilliant leader, he's fired, then marked for death by the hidden government/RobotWorld complex.
Taylor eventually becomes homeless and goes on the run. But with the help of Roz Troward, a loyal co-worker who gets fired with him; Austin O'Connor, a wise old homeless philosopher, who may not be what he appears to be; and others, Taylor must match wits with the powerful government/RobotWorld complex to save himself, his associates, and maybe all of humanity.