Engineers are professionals who apply science to the creation of practical business solutions. If you’ve ever used your smart phone in a cab after catching a flight, on your way to a quickly warmed up meal, you’ve benefited from four feats of engineering. Engineers solve problems by designing solutions. Rational thinking, expertise, and imagination go hand-in-hand in this field. The many disciplines are often brought down to four where fundamental qualifications are concerned: Civil, Chemical, Mechanical and Electrical. Qualifications include PE license and related master’s or doctoral degrees.