Jr. Process Engineer Intern

Capitol Aggregates, Inc.; San Antonio (TX); On-site; USD 25,000 - 30,000; Part time

Job summary

Capitol Aggregates Inc. in San Antonio, TX is seeking a Jr. Process Engineer Intern to work closely with the Process Engineer and plant teams on monitoring, analyzing, and optimizing cement production processes.

You'll gain hands-on experience in process engineering within a heavy industrial setting, participating in data analysis, improvement initiatives, and safety-focused projects. Ideal candidates are currently enrolled in Chemical, Mechanical, or Industrial Engineering, entering junior or

Qualifications

• Proficiency with Microsoft Office applications (Excel, Word, Outlook).
• Strong analytical skills to collect, organize, analyze, and interpret data.
• Excellent problem-solving and attention to detail.
• Ability to identify trends and draw meaningful conclusions from production data.

Responsibilities

• Assist with monitoring daily production trends and analyzing process performance.
• Participate in weekly process routines and performance reviews.
• Collaborate on process optimization projects to increase efficiency and quality.
• Collect and analyze data from cement manufacturing stages (raw materials, grinding, kiln, milling).
• Perform statistical analysis to identify trends and opportunities for improvement.
• Support root cause analysis and troubleshooting to minimize downtime.
• Assist with 5S improvement projects and downtime reports.
• Track technical and operational training in weekly updates.

Skills

Excel

Word

Outlook

Analytical skills

Problem solving

Organizational skills

Communication

Team collaboration

Education

Bachelor's degree in Chemical Engineering

Bachelor's degree in Mechanical Engineering

Bachelor's degree in Industrial Engineering

Job description

Jr. Process 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 Process Engineering Intern works closely with the Process Engineer and plant operations teams to support the monitoring, analysis, and optimization of cement production processes. This position provides hands‑on experience in process engineering within a heavy industrial manufacturing environment, with opportunities to analyze production data, participate in process improvement initiatives, troubleshoot operational issues, and support projects focused on efficiency, reliability, product quality, and safety.

What You’ll Do

• Assist with monitoring daily production trends and analyzing process performance to identify opportunities for improvement.
• Participate in the plant’s scheduled weekly process routines and performance reviews.
• Collaborate with the Process Engineer and operations teams on process optimization projects focused on increasing efficiency, reducing power consumption and waste, and improving product quality.
• Collect, organize, and analyze data from various stages of the cement manufacturing process, including raw material handling, grinding, kiln operations, and cement milling.
• Perform statistical analysis of production and process data to help identify trends and improvement opportunities.
• Participate in root cause analysis and troubleshooting of process issues to help minimize downtime and improve plant performance.
• Assist with maintaining root cause analysis action plans, dashboards, and follow-up activities.
• Participate in a 5S improvement project within a designated area of the plant, working with team members to improve organization, efficiency, and overall conditions.
• Update and monitor Uptime Go equipment downtime reports and assist with identifying recurring equipment or process trends.
• Participate in weekly updates of the plant’s technical and operational training tracking tools.
• Work collaboratively with engineering, operations, maintenance, and other plant personnel to support process improvement initiatives.
• 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, including Excel, Word, and Outlook.
• Strong analytical skills with the ability to collect, organize, analyze, and interpret data.
• Excellent problem-solving skills and attention to detail.
• Ability to identify trends and draw meaningful conclusions from production and process data.
• Strong organizational and time management skills.
• Effective verbal and written communication skills.
• Ability to work collaboratively with engineering, operations, maintenance, and other plant personnel.
• Ability to follow written and verbal instructions and manage assigned projects and responsibilities.
• Willingness and ability to learn cement manufacturing processes, equipment, and operational practices.

Education & Experience

• Currently enrolled in a bachelor's degree program in Chemical Engineering, Mechanical Engineering, Industrial Engineering, or a related engineering discipline.
• Must be entering or currently enrolled in junior or senior year.
• Minimum GPA of 2.5 required.
• Previous internship, manufacturing, industrial, or engineering experience is helpful but not required.

Other Qualifications

• Basic understanding of process engineering principles, preferably within a manufacturing or industrial environment.
• Basic knowledge of process control systems and industrial automation.
• Interest in process optimization, continuous improvement, and heavy industrial manufacturing.
• Ability and willingness to work in an active cement plant environment and wear required personal protective equipment (PPE).
• Commitment to following all Company safety policies, procedures, and applicable MSHA regulations.

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 their designee. No other Capitol employee is authorized to bind Capitol to any agreement regarding the placement of candidates by an Agency.

Position Information

Company : Zachry

Position : Jr. Process Engineer Intern

Req # : 11130969

Date Posted : September 17, 2026

Location : 11551 Nacogdoches Rd, San Antonio,
US,
TX,
78216

Job Category : Engineering/Process