Maintenance Technician

Oldcastle Infrastructure; Houston (TX); On-site; USD 65,000 - 90,000; Full time

Benefits offered by this job

Medical benefits

Dental benefits

Retirement savings plan

Health and wellness programs

Growth opportunities

Job summary

Oldcastle Infrastructure, a CRH company, seeks a Maintenance Technician to troubleshoot, repair, maintain and improve heavy industrial equipment in a fast-paced manufacturing environment. The role focuses on mechanical and electrical systems, industrial automation, and PLC-controlled equipment to minimize downtime.

Qualified candidates have 3+ years in industrial maintenance, strong diagnostic skills, and the ability to read schematics.

Qualifications

• Strong mechanical troubleshooting ability.
• Working knowledge of industrial electrical systems and motor controls.
• Experience with PLC controlled equipment and industrial automation.
• Ability to read and interpret electrical and mechanical schematics.

Responsibilities

• Diagnose and repair hydraulic and pneumatic systems, including pumps, valves, cylinders, motors, and associated controls.
• Troubleshoot mechanical failures involving bearings, gearboxes, conveyors, drive systems, and power transmission components.
• Perform equipment alignments, component replacements, adjustments, and mechanical repairs.
• Maintain and repair concrete manufacturing equipment, material handling systems, and related production machinery.
• Identify root causes of recurring mechanical failures and implement corrective actions.
• Troubleshoot and repair industrial electrical systems operating on 24VDC, 120VAC, 240VAC, and 480VAC.
• Diagnose PLC-controlled equipment, including inputs, outputs, sensors, relays, contactors, and control circuits.
• Troubleshoot variable frequency drives (VFDs), electric motors, motor starters, and control panels.
• Read and interpret electrical schematics, wiring diagrams, and technical documentation.
• Identify electrical faults using multimeters and other diagnostic equipment.

Skills

Mechanical troubleshooting

Electrical troubleshooting

Industrial automation understanding

Ability to read schematics

Tools

Siemens PLC

Allen-Bradley PLC

Multimeter

Job description

Career Opportunities: Maintenance Technician (530404)

Requisition ID530404-Posted11/03/2026-Infrastructure Products Group-Oldcastle Infrastructure-Full Time-Maintenance/Mechanics-United States-Texas

Oldcastle, a CRH company, is reinventing what's possible in building solutions. We are the leading provider of innovative outdoor living products and utility infrastructure solutions for the water, energy, and communications markets throughout North America. We're a trusted and strategic partner to engineers, contractors, distributors, specifiers, retailers, and homeowners alike as the manufacturer of precast concrete, polymer concrete, and plastic infrastructure products. Our portfolio of brands includes Oldcastle APG, Oldcastle Infrastructure, Belgard® hardscape, Echelon® Masonry, RDI® railing, Catalyst™ Fence Solutions, Sakrete® packaged concrete, Amerimix® mortar, Pebble Technology International® pool finishes, and Techniseal® sands and sealant technologies.

This position is responsible for troubleshooting, repairing, maintaining, and improving industrial manufacturing equipment & mobile equipment in a fast-paced heavy industrial environment.

The ideal candidate possesses strong mechanical and electrical troubleshooting skills, understands industrial automation, and can efficiently diagnose equipment failures to minimize production downtime.

We are looking for a technician who takes ownership of equipment reliability, works safely, demonstrates initiative, and approaches maintenance with a problem-solving mindset.

Job Responsibilities

• Diagnose and repair hydraulic and pneumatic systems, including pumps, valves, cylinders, motors, and associated controls.
• Troubleshoot mechanical failures involving bearings, gearboxes, conveyors, drive systems, and power transmission components.
• Perform equipment alignments, component replacements, adjustments, and mechanical repairs.
• Maintain and repair concrete manufacturing equipment, material handling systems, and associated production machinery.
• Identify root causes of recurring mechanical failures and implement corrective actions.
• Troubleshoot and repair industrial electrical systems operating on 24VDC, 120VAC, 240VAC, and 480VAC.
• Diagnose PLC-controlled equipment, including inputs, outputs, sensors, relays, contactors, and control circuits.
• Troubleshoot variable frequency drives (VFDs), electric motors, motor starters, and control panels.
• Read and interpret electrical schematics, wiring diagrams, and technical documentation.
• Identify electrical faults using multimeters and other diagnostic equipment.
• Troubleshoot industrial communication and automation-related failures.

Job Requirements

• Previous industrial maintenance experience in a manufacturing or heavy industrial environment.
• Strong mechanical troubleshooting and repair capabilities.
• Working knowledge of industrial electrical systems and motor controls.
• Experience troubleshooting hydraulic and pneumatic equipment.
• Ability to read and interpret electrical and mechanical schematics.
• Ability to independently diagnose equipment malfunctions and determine effective repair solutions.
• Familiarity with preventive maintenance procedures and industrial safety practices.
• Ability to use hand tools, power tools, and electrical diagnostic equipment.
• Willingness to work overtime or respond to critical equipment breakdowns as operational needs require.
• 3+ years of industrial maintenance experience.
• Experience troubleshooting PLC-controlled equipment, particularly Siemens or Allen-Bradley systems

What CRH Offers You

• Highly competitive base pay
• Comprehensive medical, dental and disability benefits programs
• Group retirement savings program
• Health and wellness programs
• Aninclusive culture that values opportunity for growth, development, and internal promotion

About CRH

CRH has a long and proud heritage. We are a collection of hundreds of family businesses, regional companies and large enterprises that together form the CRH family. CRH operates in a decentralized, diversified structure that allows you to work in a small company environment while having the career opportunities of a large international organization.

Oldcastle Infrastructure, a CRH Company, is an affirmatively action and equal opportunity employer.

EOE/Vet/Disability

CRH is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, status as a protected veteran or any other characteristic protected under applicable federal, state, or local law.

AI tools may be used in certain stages of the employment lifecycle, such as candidate review; however, all final employment decisions will be made by a person.