Is it permissible to marry a systems engineer who works in the computer department of a bank, and is his earning lawful or unlawful?

It is not permissible to work in an usurious bank, due to the hadith narrated by Jabir (may Allah be pleased with him): "The Messenger of Allah (peace and blessings of Allah be upon him) cursed the one who consumes Riba (usury), the one who pays it, the one who writes it down, and the two witnesses to it, and he said: 'They are all equal (in sin).'"