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Salary
$48k – $50k per year
Location
In office (El Cajon)
Seniority
Intern
Visa
green card filings: 1
Employment
Internship

Confirmed on the employer's own hiring board on Oct 30, 2026. First seen by Alion on Sep 30, 2026. DN Tanks scores A on the Alion truth index.

Overview
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DN Tanks is a designer and builder of prestressed concrete liquid storage tanks for water, wastewater, thermal energy storage and industrial uses, headquartered in Wakefield, Massachusetts. With more than 3,500 prestressed concrete tanks built over some 90 years, it also offers Concrete Tank Services for the inspection, rehabilitation and retrofit of existing tanks, and runs traveling construction crews across the eastern, central and western United States. It hires traveling concrete superintendents and carpenter foremen, construction and assistant project managers, regional sales managers, structural design engineers, estimators and engineering and construction co-op students.

As a Preconstruction Estimating Intern at DN, you will gain hands-on experience in the exciting field of civil engineering and construction. With a dedicated mentor in the industry you will contribute to real projects, develop valuable skills, and learn about the lifecycle of heavy-civil construction projects, from conception to completion. This is a great opportunity to gain valuable experience, build your future, and make a tangible impact in the world!

We are seeking an intern local to San Diego, CA able to work approximately 20 hours per week beginning January 2026, with summer internship opportunities available.

Roles and Responsibilities:

  • Assist Regional Estimators with the evaluation of project site conditions and the generation of tank site layout drawings using AutoCAD.
  • Prepare earthwork takeoffs using Civil 3D and sitework cost estimates using Excel.
  • Solicit bid level pricing for cranes, rebar installation, fence work, and various other subcontractor scopes of work.
  • Preparation of Requests for Quotation after local subcontractors have been identified.
  • Gain insight into the process of developing and bidding construction projects.
  • Visit our local tank construction sites.

Qualifications:

  • Currently enrolled in an Engineering or Construction Management undergraduate program. A concentration in Civil Engineering is preferred.
  • Experience working with CAD software (preferably AutoCAD) and Microsoft Office (Word, Outlook, and Excel).
  • Excellent communication and time management skills.
  • Ability to multi-task and prioritize work assignments.
  • Ability to problem-solve in individual and team settings.
  • Transportation to El Cajon, California

Benefits:

  • Competitive Hourly Rate
  • Paid Time Off
  • Scholarship Opportunity
  • Gym membership discount
  • Employee referral program
  • Leadership training programs
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