Magseis Fairfield announced that Mark Zajac will assume the position as CTO with effect from 1 June 2020. Mr. Zajac joins from Schlumberger and brings over 30 years of experience in the oilfield services industry. He replaces Nils Heieren, who has decided to leave the company after close to seven years. Mark Zajac has held a variety of global leadership positions in marine seismic operations, support and technology with WesternGeco, including Applied Technology Marine Manager, Global Operations Support Manager, and Vice President for Southeast Asia.