Alhaji Zakariya'U held senior and management positions at Nigeria Airways Limited, AIICO Insurance Pic, Kapita Insurance Company, CIB Insurance Brokers and NICON Insurance Pic. He moved to Niger Insurance Pic as General Manager (Technology) in 1993 and rose to Executive Director position the same year. In 1997, he was appointed Managing Director of the company. He now sits on the board of that company as chairman.