Everybody has to work to survive, even in a world of evil. Jesus said render to Caesar what is Caesar's, and to God, what is God's. He did not call on the people to withhold paying taxes to a secular ruler. He told them they should pay taxes to a secular ruler (which you could define as evil).

A programmer is in the same boat with everyone else. He has to earn money to live, which means programming for a non-Christian world. That doesn't mean his activity is morally wrong, or that he shouldn't program at all in the modern world. Surviving and taking care of one's family require a programmer to work in the modern world, just as much as using public services require a citizen to pay taxes to a secular, non-Christian ruler.