MSA is seeking a motivated Mechanical Engineering Intern to join our team and contribute to the design of HVAC or plumbing systems for commercial and institutional buildings. This role is onsite in our Des Moines (Ankeny) IA office. MSA internships are typically at least 12 weeks in duration, ranging from mid-May 2026 to mid-August 2026, with start/exit dates confirmed later in the hiring process. For engineering students seeking consulting experience with building projects, this is the position for you! Additionally, an internship at MSA provides you with a collaborative environment across the firm among the 40 interns each summer.