Testing Intern Jobs in Denver, CO (NOW HIRING)

Why Terracon:
Terracon is a specialty engineering consulting firm with expertise in geotechnical engineering, environmental consulting, construction materials testing and inspections, and facilities services with a fun and exciting intern program. Terracon supports public and private agencies, civil engineers, architects, developers, owners, and other partners throughout the project lifecycle, from site selection through design, construction, and asset management. Work alongside industry professionals and CU Boulder alumni while building practical skills on projects that support infrastructure, environmental stewardship, and community impact. The internship program emphasizes mentorship, early-career development, and potential pathways to full-time opportunities. Opportunities are available across Terracon's 200+ offices nationwide. Applicants may identify a preferred location and are encouraged to indicate interest in additional offices if open to relocation.
Position Summary
We are seeking students interested in Summer 2027 internships supporting one or more of these specialized service lines. Internships generally run May through August. Co-op opportunities may run May through December. Interns work alongside experienced engineers, scientists, consultants, and technicians on active projects. The experience may include field investigations, testing and inspection services, data collection and analysis, technical problem-solving, project delivery, and client-focused consulting. Each intern is paired with a leader or mentor who supports technical skill development, career exploration, and professional growth.
You will also have the opportunity to participate in a cohort. The cohort is a way for you to connect with other interns across the company and learn about their experiences. This is also a great way for you to start building your professional network!
Our summer concludes with a fun and engaging summit where you will meet leaders, learn more about how to grow a career at Terracon, and build stronger relationships with your peers.
Service Line Learning Opportunity:
Geotechnical: Laboratory testing capabilities; soil testing procedures; field exploration; data review; report and proposal preparation; test-result communication; GeoReport; and quality procedures.
Materials: Construction materials sampling and testing; laboratory organization and efficiency; proposals and report writing; change orders; project execution; client interaction; and communication of test results.
Environmental: Field sampling and testing; data acquisition and review; environmental field activities; report preparation; internal and external communication; and quality procedures.
Facilities: Building enclosure consulting; structural diagnostics; mechanical, electrical, and plumbing consulting; property and facility condition assessments; testing support; design-phase drawing review; and construction site visits.
Responsibilities
During the summer, you will have an opportunity to learn about the following:

• Laboratory safety and safe work practices
• All aspects of our laboratory testing capabilities and the purpose of each test
• Understanding soil test procedures (ASTM, DOT, COE, etc.)
• Shadow field exploration team
• Data review
• Report preparation
• Proposal creation
• Basics of project management
• Communication of test results (internal and external)
• Introduction to GeoReport
• Quality management system and procedures

Essential Roles and Responsibilities:

• Performs sampling or testing as directed.
• Seek learning opportunities from mentor
• Provides assistance to other field and/or laboratory personnel
• Assists other technicians or professional staff on routine tasks
• Will be placed in a progressively increased role of training and responsibility in work assignments.
• Create and give a final presentation to leadership regarding summer experiences.

What Helps You Stand Out

• Interest in hands-on field, testing, inspection, and materials work in addition to design-related activities.
• Faculty recommendation or alignment with academic programs focused on geotechnical, environmental, materials, architectural, or construction engineering.
• Openness to working across Terracon office locations nationwide, including relocation for the internship term.

Qualifications
Minimum Qualifications:

• Currently pursuing a degree in civil engineering, geotechnical engineering, geological engineering, construction engineering, architectural engineering, environmental engineering, geology, biology, construction science, or a closely related program.
• Ability to work safely and effectively in office, field, and/or laboratory environments, depending on assignment.
• Ability to learn technical procedures, follow direction, communicate clearly, and collaborate with a professional team.

Preferred Qualifications:

• Coursework or demonstrated interest in geotechnical engineering, soils, foundations, pavement design, construction materials, environmental systems, building enclosures, or related specialty services.
• Good academic standing; a 3.0 GPA or higher may be required by the assigned internship program.
• Entering junior or senior year is preferred; availability to return for multiple internship or co-op terms is a plus.

About Us
Terracon is a 100 percent employee-owned multidiscipline consulting firm comprised of more than 8,000 curious minds focused on solving engineering and technical challenges from more than 200 locations nationwide. Since 1965, Terracon has evolved into a successful multi-discipline firm specializing in environmental, facilities, geotechnical, and materials services. Terracon's growth is due to our talented employee-owners exceeding expectations in client service and growing their careers with new and exciting opportunities in the marketplace. Terracon was recognized as the #1 firm in Asbestos and Lead Abatement.
Terracon's vision of "Together, we are best at people" is demonstrated through our excellent compensation and benefits package. Based on eligibility, role and job status, we offer many programs including medical, dental, vision, life insurance, 401(k) plan, paid time off and holidays, education reimbursement, and various bonus programs.
About the Team
Terracon's internship program gives students the opportunity to turn classroom learning into meaningful, real-world experience while working alongside professionals who are shaping the built environment. Interns are trusted to contribute to real client projects, gain exposure across Terracon's service lines, and develop practical consulting skills with the guidance of a dedicated mentor. Through hands-on work, professional development, and connection with peers nationwide, interns build confidence, expand their networks, and learn what it means to be an employee owner. The program prepares students to launch their careers with industry-relevant experience, a strong professional foundation, and a clear path for future growth.