About the role#
As a Construction Management Intern at DN, you will gain hands-on experience in civil engineering and construction. You will work with a mentor to contribute to real projects and learn about the lifecycle of heavy-civil construction from start to finish. This role requires approximately 20 hours per week starting in January 2026, with additional opportunities available during the summer.
What you'll do#
- Identify local concrete suppliers and prepare pre-bid and post-bid pricing for concrete and shotcrete mixes.
- Work with suppliers to develop and trial batch mix designs.
- Assist Project Engineers with the preparation of detailed project submittals.
- Develop AutoCAD site layout drawings for cut and fill slopes, ramps, work roads, crane positions, and casting bed locations.
- Coordinate with sitework, rebar, crane, and concrete subcontractors.
- Perform jobsite pre-pour inspections with Project Managers and Project Engineers.
- Visit local construction sites during precast panel erection.
What you'll need#
- Current enrollment in an undergraduate Engineering or Construction Management program, preferably with a concentration in Civil Engineering.
- Experience with CAD software, specifically AutoCAD.
- Proficiency in Microsoft Office including Word, Outlook, and Excel.
- Strong communication and time management skills.
- Ability to multi-task, prioritize assignments, and solve problems in both individual and team settings.
- Reliable transportation to El Cajon, California.
Location & details#
- This position is based on-site in El Cajon, California.
- This is a paid internship.
About DN
DN designs and builds prestressed concrete liquid storage tanks. Founded in 1929, the company focuses on water storage and wastewater infrastructure. It operates ten regional offices and three facilities across the United States. The firm employs between 501 and 1,000 people.
How to get in at DN
Securing an internship at DN requires speed, as early applicants are often reviewed before the volume of candidates becomes unmanageable. Intern Insider sends an instant alert the moment a role matching your target is published anywhere, so you apply among the first and get seen before the pile grows. You should focus on demonstrating your interest in civil engineering or construction management when you submit your materials. Intern Insider surfaces the recruiters behind the company roles so you can reach out directly to ask about the role or a referral, which materially improves response rates. Connecting with the right person at DN can help you stand out from the standard application queue.



