Langan Engineering & Environmental Services Civil Engineering internships in Doylestown, Pennsylvania

As of November 15, 2026, Intern Insider listed 3 open Civil Engineering internships at Langan Engineering & Environmental Services in Doylestown, Pennsylvania: Intern/Co-op - Site/Civil Engineering and Intern/Co-op - Highway/Roadway Engineering. 3 of these 3 listings state that the role is paid. This page does not invent a salary when the listing is silent. Browse the roles by employer below. You can read the full posting free, then apply in minutes with a free account.