Mechanic I

Capitol Aggregates, Inc; San Antonio (TX); On-site; USD 38,000 - 52,000; Full time

Job summary

Capitol Aggregates, Inc. in Texas is seeking an entry-level Plant Mechanic I to support mechanical maintenance in a cement plant.

This role assists with inspections, basic repairs, and preventative maintenance, with a strong focus on safety, teamwork, and continuous learning. You will work with experienced mechanics on conveyors, pumps, fans, and material handling systems, performing lubrication, cleaning, and component replacement under supervision.

Qualifications

• High school diploma or GED required or preferred.
• 0–1 year of mechanical maintenance or related experience preferred.
• Technical training in mechanical maintenance is a plus.

Responsibilities

• Adhere to safety policies and MSHA regulations.
• Assist experienced mechanics with maintenance and repair of plant equipment (conveyors, pumps, fans, etc.).
• Perform basic maintenance tasks such as lubrication, cleaning, and component replacement under supervision.
• Learn cement plant systems and equipment layout and function.
• Support preventive maintenance activities per work orders and schedules.
• Document work performed, parts used, and observations, as needed.

Skills

Strong mechanical aptitude

Education

High school diploma or GED

Technical training in mechanical maintenance/industrial technology

Job description

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.

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 Plant Mechanic I is an entry-level position responsible for supporting mechanical maintenance activities in a cement plant. This role assists with inspections, basic repairs, and preventative maintenance tasks to help ensure safe and reliable equipment operation. The position is designed for individuals developing mechanical skills in a heavy industrial environment, with a strong focus on safety, teamwork, and continuous learning.

What You’ll Do

• Adhere to all environmental and safety policies, rules, and procedures, including MSHA regulations.
• Assist experienced mechanics with maintenance and repair of plant equipment such as conveyors, pumps, fans, and material handling systems.
• Perform basic maintenance tasks such as lubrication, cleaning, and component replacement under supervision.
• Learn the layout and function of cement plant systems and equipment.
• Support preventative maintenance activities according to work orders and schedules.
• Conduct basic visual inspections of equipment and report abnormalities to supervision.
• Maintain clean and organized work areas before, during, and after task completion.
• Follow all lockout/tagout and safety procedures without exception.
• Accurately communicate job progress, issues, and completion status to supervisors or lead mechanics.
• Assist in documenting work performed, including parts used and observations.
• Safely operate basic hand tools and equipment as trained.
• Participate in training to develop mechanical skills and understanding of cement plant operations.
• Demonstrate a positive attitude and willingness to learn in a team-oriented environment.
• Follow plant schedules including start times, breaks, and shift end times.
• Support housekeeping and area inspections to maintain a safe and compliant facility.

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

Education & Experience

• High school diploma or GED preferred.
• Technical training in mechanical maintenance, industrial technology, or a related field is a plus.
• 0 to 1 year of experience in mechanical maintenance, industrial work, or a related field preferred.
• Previous experience in construction, mining, manufacturing, or heavy industrial environments is beneficial but not required.
• Entry-level candidates with strong mechanical aptitude and a willingness to learn are encouraged to apply.

Other Qualifications

• Ability to work in a physically demanding industrial environment, including exposure to heights, confined spaces, and moving equipment.
• Willingness to work outdoors in varying weather conditions for extended periods
• Commitment to following all safety rules, including proper use of PPE and MSHA compliance.
• Willingness to learn and take direction from supervisors and experienced mechanics.
• Ability to work effectively as part of a team in a production-driven environment.
• Basic problem-solving skills and a desire to develop mechanical knowledge.
• Dependable with good attendance and a strong work ethic.
• Ability to adapt to changing priorities and work schedules, including overtime or shift work as needed.

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.