Summer 2026 - Civil Engineering Intern

Gonzalez Companies is a partner managed firm that provides comprehensive Planning, Design, and Construction Management Services to large and small Water, Sewer and Utility Districts; Departments of Transportation; and municipalities. We are currently seeking Summer Interns to join our team for Summer 2026. If you’re hungry for knowledge, ready to make a difference and dedicated to providing personalized attention to our clients, we want you on our team.

This internship is for students currently pursuing a BS in Civil Engineering, Construction Management, or similar!

Gonzalez is a rapidly growing, dynamic, professional services firm specializing in civil engineering, construction management, and construction inspection. Our clientele includes large and small water, sewer, and utility districts; departments of transportation and other public transportation agencies; and municipalities throughout the Midwest.

Working primarily in the Greater St. Louis, Chicago, and Louisville metro areas, Gonzalez offers a great work environment, generous benefit packages, and opportunities to succeed in many professional disciplines.

Equal Opportunity Employer

Gonzalez Companies, LLC provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.

This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

Infrastructure is the backbone of the communities where we live, work, and play. Done well, infrastructure changes lives for the better – promoting opportunity, equity, sustainability, and safety.

Trilon is bringing together a family of the nation’s best infrastructure consulting firms. We invest in talent, technology, and targeted M&A to ensure we are the firm of choice for our clients and our people to deliver sustainable infrastructure solutions.

Trilon helps our communities plan, design, and deliver critical infrastructure more quickly, affordably, and impactfully.