Electrical Engineer Intern

Capitol Aggregates, Inc.; San Antonio (TX); On-site; USD 22,000 - 33,000; Part time

Job summary

Capitol Aggregates, Inc. in San Antonio, TX seeks an Electrical Engineer Intern to support maintenance and reliability initiatives within a cement plant environment.

You will rotate through maintenance and reliability functions and gain practical exposure to equipment, documentation, and continuous improvement processes. The internship emphasizes hands-on experience with mechanical systems, CAD drawings, and fieldwork, while working closely with the maintenance and reliability teams to apply

Qualifications

• Currently pursuing a Bachelor's degree in Mechanical Engineering.
• Previous internship or related mechanical/industrial experience is helpful but not required.
• Experience with CAD software preferred but not required.

Responsibilities

• Assist with maintenance planning and reliability activities.
• Document inspection findings and equipment conditions.
• Use ultrasound and laser alignment tools for condition measurements.
• Support with drawings, specifications, and part identifications.
• Assist in updating CAD drawings from measurements and sketches.
• Contribute to weekly maintenance planning and parts research.
• Maintain safety-focused work practices in an industrial setting.

Skills

Microsoft Office

AutoCAD

Analytical thinking

Reading drawings

Documentation

Organizational skills

Communication skills

Technical research

Teamwork

Learning attitude

Education

Bachelor's in Mechanical Engineering

Tools

AutoCAD

Job description

Electrical Engineer Intern San Antonio, TX

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 guide everything we do:

Every Person Matters | Together We Can Do Great Things | This Is More Than a Job

Position Overview

The Mechanical Engineering Intern works under the direction of the Maintenance Manager and rotates through different maintenance and reliability functions within the plant. This position provides hands-on experience in industrial maintenance, equipment reliability, precision maintenance, planning, troubleshooting, and mechanical systems. The intern will work alongside maintenance and reliability teams to apply engineering concepts in a working cement plant while gaining practical experience with equipment, maintenance processes, technical documentation, and continuous improvement.

What You'll Do

• Assist with equipment inspections, lubrication routes, oil sampling, and other assigned preventative and reliability maintenance activities.
• Accurately document and communicate inspection findings, equipment conditions, and reliability data.
• Assist with equipment condition measurements using tools and technologies such as ultrasound and laser alignment equipment.
• Work alongside maintenance personnel to support the use of precision maintenance procedures and established equipment standards.
• Assist with organizing technical documentation and providing maintenance crews with drawings, equipment specifications, required clearances, torque values, equipment identification, and other technical information.
• Participate in planning and preparing maintenance work to support safe and efficient job execution.
• Create and update CAD drawings as needed using existing sketches, field measurements, or reverse engineering of parts and equipment.
• Research equipment manuals, drawings, specifications, and other technical resources needed to support maintenance activities.
• Assist the reliability team with troubleshooting equipment failures using available documentation, manuals, equipment history, and precision maintenance information.
• Support development of the weekly maintenance plan by reviewing required parts and materials, visiting job sites before work is scheduled, identifying potential issues, and researching technical specifications.
• Assist with identifying required replacement parts and maintaining accurate part information within the stockroom system.
• Support maintenance crews with fieldwork as needed and help provide the technical documentation and precision maintenance information necessary to complete assigned work.
• Assist with the organization, storage, and identification of specialized tools used to maintain plant equipment.
• Collaborate with maintenance, reliability, engineering, operations, and stockroom personnel to support assigned projects and maintenance activities.
• Maintain work areas and equipment in a safe, clean and organized condition.
• Follow all Company and plant safety policies, rules, and procedures, as well as applicable MSHA regulations.

NOTE: This list presents only the principal duties of the position and is not intended to be comprehensive. Other duties and responsibilities may be assigned as dictated by business needs and conditions. As an essential function of the job, good attendance is required.

What You'll Bring

Required Skills and Abilities

• Proficiency with Microsoft Office applications.
• Working knowledge of AutoCAD or other CAD-based software.
• Strong analytical and problem-solving skills with an interest in mechanical equipment, maintenance, and reliability.
• Ability to read and interpret basic technical drawings, equipment documentation, and specifications.
• Strong attention to detail with the ability to accurately document findings and technical information.
• Strong organizational, planning, and time-management skills.
• Effective verbal and written communication skills.
• Ability to research and locate technical information using equipment manuals, drawings, specifications, and other available resources.
• Ability to work effectively as part of a team while also completing assigned tasks independently.
• Willingness to learn industrial maintenance practices, mechanical systems, equipment reliability, and precision maintenance techniques.

Education & Experience

• Currently enrolled in a bachelor's degree program in Mechanical Engineering.
• Previous internship, mechanical, maintenance, manufacturing, or industrial experience is helpful but not required.
• Experience with computer-aided design software is preferred but not required.

Other Qualifications

• Knowledge of CAD/CAM is preferred but not required.
• Interest in industrial maintenance, equipment reliability, troubleshooting, and continuous improvement.
• Ability and willingness to perform fieldwork in an active industrial environment.
• Ability to wear required personal protective equipment (PPE) and work safely around industrial equipment.
• Ability to work collaboratively with maintenance crews, reliability personnel, engineers, operations personnel, and other plant team members.
• Commitment to following all Company safety policies, procedures, and applicable MSHA regulations.

Position Information

• Company : Zachry
• Position : Electrical Engineer Intern
• Req # : 11131040
• Date Posted : September 17, 2026
• Location : 11551 Nacogdoches Rd, San Antonio,
  US,
  TX,
  78216
• Job Category : Instrumentation/Electrical