Mine Planning Intern Summer 2026
- San Antonio, TX
- Training
- Full-time
Capitol Aggregates is seeking a Mine & Site Planning Intern to join our aggregates division. Under the guidance of our Mine & Site Planning Manager, you’ll contribute to projects that optimize mine operations, improve site efficiency, and support long-term planning. This internship provides hands-on exposure to mining and site planning in a real-world aggregates environment, offering valuable experience for students pursuing engineering and geology fields.What You’ll DoPerform mine design and planning work, contributing to projects involving mining efficiency, mine progression, and process flow.Conduct fieldwork to support active mine sites, including surveying and site layout activities.Collect, organize, and document operational and geological data.Assist with the creation and organization of environmental and site documentation, maps, and drawings.Present project updates and findings to the Mine & Site Planning Manager.Participate in team meetings and contribute ideas for improving mine planning processes.Maintain work area and equipment in a safe and clean condition at all times.Support all company and plant safety policies, rules, and procedures, as well as MSHA regulations.What You’ll BringProficiency in Microsoft Excel, Word, and Outlook.Strong attention to detail with an ability to analyze and organize technical information.Clear communication and teamwork skills.Commitment to producing high-quality work while maintaining a safety-first mindset.Education & ExperienceMust be currently enrolled in a degree program in Mining Engineering, Geological Engineering, Civil Engineering, or a related field.Other QualificationsFAA Remote Pilot Certificate (preferred).Experience with Computer-Aided Design (CAD) software (preferred).Surveying experience is helpful but not required.Strong problem-solving skills and initiative.Why You’ll Love This Role✔ Gain practical field and office experience in mining and aggregates.
✔ Learn directly from experienced mine planning professionals.
✔ Build your technical skills in data analysis, CAD, and surveying.
✔ Play a role in projects that improve site efficiency and sustainability.Who We AreCapitol 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 MattersTogether We Can Do Great ThingsThis is More Than a JobCapitol 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
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.