Technical Services Intern - Summer 2026

Learn. Test. Support. Grow Your Technical Skills.
Capitol Aggregates is seeking a Technical Services Intern to join our team and support key product testing, data analysis, and customer support activities. This role offers hands-on experience in laboratory testing with cement, mortar, concrete, and aggregates while also providing exposure to technical service operations. Working alongside experienced professionals, you’ll gain valuable knowledge of quality standards, customer engagement, and product performance in the construction materials industry.

What You’ll Do

• Learn and apply standardized testing methods and procedures under the guidance of technical staff.

• Prepare materials in the lab for testing and perform a variety of lab tests.

• Assist with mortar cube mixes, concrete mixes, and aggregate testing.

• Provide support to technical services staff by responding to customer inquiries, troubleshooting issues, and addressing technical concerns.

• Help maintain accurate records of laboratory testing and technical service interactions.

• Keep work areas and equipment safe, clean, and organized.

• Abide by and support all company safety policies, rules, and procedures as well as M.S.H.A. regulations.

What You’ll Bring

• Proficiency with computer programs such as Excel, Word, and Outlook.

• Mechanical aptitude and willingness to learn laboratory and technical processes.

• Strong organizational and time management skills.

• Effective communication and interpersonal skills.

• Ability to work independently and take initiative while also contributing to a team environment.

Education & Experience

• Currently enrolled in a degree program in Concrete Industry Management (CIM), Materials Science, Chemistry, Civil Engineering, or a related field.

Why This Role Matters

✔ Gain hands-on experience with testing cement, concrete, and aggregates.
✔ Build problem-solving and customer-facing technical skills.
✔ Learn from experienced technical professionals in a supportive environment.
✔ Exposure to the cement and aggregates industry with opportunities to apply classroom learning.

Who We Are

Capitol Aggregates a division of Zachry stands on a rich tradition of creativity, stability, innovation, and experience in the construction and building materials industry. Fully understanding that Capitol's employees are the heart of our success, we foster a dynamic work environment by providing development opportunities such as training, education, and career advancement. We believe people are our greatest asset and offer a variety of training and development opportunities to promote excellence and facilitate career advancement.  We take care of our team members as family, within a culture of service where we do the right thing because it is the right thing to do. Our core values are at the center of every decision we make:

Every Person Matters

Together We Can Do Great Things

This is More Than a Job

Capitol Aggregates offers an industry leading benefits package for our employees and their families.

• Medical, Dental, Vision and Life Insurance
• 401K
• Paid Leave
• Incentive Compensation Program
• Company-paid short-term and long-term disability insurance
• Employee assistance program (EAP)
• Tuition Reimbursement
• And many more

We are an Equal Opportunity Employer.  All qualified applicants will receive consideration for employment without regard to race, color, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, or other legally protected status.

Notice to Staffing Agencies
Capitol Aggregates Inc. (Capitol) will not accept unsolicited resumes from any source other than directly from a candidate. Any unsolicited resumes sent to Capitol, including unsolicited resumes sent to a Capitol mailing address or email address, directly to Capitol employees, or to Capitol’s resume database will be considered Capitol property. Capitol will not pay a fee for any placement resulting from the receipt of an unsolicited resume. Capitol will consider any candidate for whom an Agency has submitted an unsolicited resume to have been referred by the Agency free of any charges or fees. Agencies must obtain advance written approval from Capitol’s recruiting function to submit resumes, and then only in conjunction with a valid, fully executed contract for service and in response to a specific job opening. Capitol will not pay a fee to any Agency that does not have such an agreement in place. Agency agreements will only be valid if in writing and signed by Capitol’s Human Resources Representative or his/her designee. No other Capitol employee is authorized to bind Capitol to any agreement regarding placement of candidates by Agency.