Heavy Equipment Maintenance Intern- Summer 2026

Gain Hands-On Experience. Learn Industrial Maintenance. Support Reliability.
Capitol Aggregates is looking for a Heavy Equipment Maintenance Intern to join our Aggregates Division. In this role, you’ll work alongside experienced maintenance technicians and learn how to inspect, service, and repair heavy mobile equipment such as loaders, haul trucks, dozers, and excavators. This internship provides practical exposure to mechanical troubleshooting, preventive maintenance, and industrial safety practices in a real-world aggregates plant environment.

What You’ll Do

• Assist with routine servicing, inspections, and minor repairs of heavy equipment.

• Support preventive maintenance activities such as oil changes, filter replacement, lubrication, and fluid checks.

• Help troubleshoot basic equipment malfunctions and document findings.

• Learn to read and interpret equipment manuals and work orders to support repair activities.

• Assist with maintaining accurate maintenance logs and records.

• Participate in daily safety meetings and follow all safety procedures.

• Keep work areas clean, organized, and hazard-free.

• Support tool and parts inventory organization.

• Shadow senior mechanics to gain exposure to advanced repairs and precision maintenance.

What You’ll Bring

• Mechanical aptitude and eagerness to learn equipment maintenance.

• Ability to follow instructions accurately.

• Effective communication and teamwork skills.

• Attention to detail and willingness to build new skills.

• Comfort using basic hand tools; willingness to assist with supervised power tool operations.

• Commitment to safe work practices.

Education & Experience

• High School Diploma or GED required.

• Enrollment in a vocational, technical, or college program in Diesel Mechanics, Heavy Equipment Technology, or Industrial Maintenance.

• Previous exposure to mechanical work or equipment maintenance is a plus.

Other Qualifications

• Valid driver’s license with a clean driving record.

• Ability to work outdoors in varying weather conditions.

• Physical ability to work in a demanding industrial environment.

• Willingness to adapt to a fast-paced plant setting.

Why You’ll Love This Role

✔ Hands-on learning with heavy mobile equipment.
✔ Exposure to real-world troubleshooting and preventive maintenance.
✔ Mentorship from experienced technicians.
✔ Opportunities to build mechanical and safety-focused skills in the aggregates industry.

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 and Bonus Program
• Company-paid short-term and long-term disability insurance
• Employee assistance program
• 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.