Maintenance Technician 3 1st Shift

Cornerstone Building Brands, Inc.; Phoenix (AZ); On-site; USD 41,000 - 52,000; Full time

Benefits offered by this job

Medical benefits from day 1

Paid time off (PTO)

401k plans

Tuition reimbursement

Job summary

Cornerstone Building Brands is seeking a Maintenance Technician III in Phoenix, AZ to diagnose and repair industrial electrical systems up to 480 VAC and troubleshoot PLCs, servo drives, and related controls. You will interpret schematics, perform energized diagnostics with proper safety, and collaborate with teams on reliability improvements.

The role requires 5+ years of maintenance experience, high school diploma or GED, and strong problem-solving skills.

Qualifications

• High school diploma or GED required.
• Technical training, industrial maintenance certification, electrical training or equivalent experience preferred.
• Minimum of 5 years of industrial maintenance experience.

Responsibilities

• Diagnose and repair industrial electrical systems up to 480 VAC.
• Interpret electrical schematics, ladder diagrams, and control documentation.
• Troubleshoot PLCs, sensors, and field devices; repair mechanical components as needed.
• Safely perform energized diagnostics under approved safety procedures.
• Coordinate with maintenance team to minimize downtime.

Skills

Electrical troubleshooting

PLC diagnostics

Servo motors & drives

Electrical testing

Education

High school diploma or GED

Industrial maintenance training

Tools

Digital multimeters

Clamp meters

HMI/PLC interfaces

Job description

Cornerstone Building Brands is a leading manufacturer of exterior building products for residential and low‑residential buildings in North America. Headquartered in Cary, N.C., we serve residential and commercial customers across the new construction and Repair & Remodel (R&R) markets. Our market‑leading portfolio of products spans vinyl windows, vinyl siding, stone veneer, metal roofing, metal wall systems and metal accessories. Cornerstone Building Brands’ broad, multi‑channel distribution platform and expansive national footprint includes more than 18,800 team members at manufacturing, distribution and office locations throughout North America. Corporate stewardship and Environmental, Social and Governance (ESG) responsibility are embedded in our culture. We are committed to contributing positively to the communities where we live, work and play. For more information, visit us at cornerstonebuildingbrands.com .

Job Description

JOB DETAILS

Base pay: $30 - $38 per hour, depending on experience

Employment Benefits start on day 1

Weekly Pay

DUTIES AND RESPONSIBILITIES

Essential Duties and Responsibilities

Electrical Systems and Controls

Diagnose and repair industrial electrical systems operating up to 480 VAC, including three-phase motors, motor starters, contactors, relays, and control circuits.

Perform accurate electrical testing and troubleshooting across a measurement range from 10 mV through 480 V, using appropriate testing equipment and safe work practices.

Interpret electrical schematics, wiring diagrams, ladder logic, and equipment control documentation.

Troubleshoot programmable logic controllers (PLCs), including input/output circuits, fault conditions, and associated field devices.

Diagnose sensors, proximity switches, photoelectric devices, limit switches, encoders, and other industrial control components.

Troubleshoot variable frequency drives (VFDs), motor controls, and electrical feedback systems.

Safely perform energized diagnostic measurements only when qualified and authorized under applicable electrical safety procedures.

Mechanical Systems and Power Transmission

Troubleshoot and repair industrial mechanical equipment, including gears, gearboxes, bearings, shafts, couplings, belts, chains, and drive assemblies.

Diagnose mechanical failures involving misalignment, excessive vibration, abnormal wear, and improper equipment operation.

Perform precision alignment, adjustment, installation, and replacement of mechanical components.

Troubleshoot and maintain servo‑driven equipment, including servo motors, drives, positioning systems, encoders, and mechanical motion assemblies.

Identify mechanical and electrical causes of positioning errors, synchronization problems, and repeated equipment failures.

Perform equipment adjustments, component replacements, and mechanical repairs to restore proper operation.

Pneumatic Systems

Diagnose, repair, and maintain pneumatic controls and compressed‑air‑operated equipment.

Troubleshoot pneumatic cylinders, directional control valves, solenoids, regulators, pressure switches, flow controls, and air preparation components.

Interpret pneumatic schematics and identify control sequence failures.

Diagnose air leaks, pressure losses, timing problems, and improper cylinder operation.

Adjust pneumatic components to maintain proper machine sequencing, positioning, and operating performance.

Troubleshoot integrated electrical and pneumatic control systems.

Production Equipment Maintenance

Perform preventive, predictive, and corrective maintenance on automated and semi‑automated production equipment.

Troubleshoot cutting, routing, welding, conveying, assembly, and fabrication equipment used in window and door manufacturing.

Diagnose automated equipment failures involving electrical, pneumatic, mechanical, and servo‑driven components.

Perform machine setup adjustments, alignment checks, and functional testing following repairs.

Work with Production and Quality personnel to identify equipment‑related defects and restore machinery to acceptable operating conditions.

Support equipment installations, modifications, upgrades, and manufacturing process improvements.

Equipment Reliability and Continuous Improvement

Independently investigate complex or recurring equipment failures and determine their root causes.

Develop and implement corrective actions to reduce unplanned downtime and repeat failures.

Complete assigned preventive maintenance activities and identify emerging equipment concerns.

Accurately document repairs, troubleshooting findings, parts used, and labor hours within the computerized maintenance management system (CMMS).

Recommend improvements to equipment reliability, maintainability, and performance.

Assist in identifying critical spare parts and replacement component requirements.

Provide technical guidance and troubleshooting assistance to lower‑level maintenance technicians.

Coordinate with Production, Quality, Engineering, and other departments to resolve equipment‑related problems.

Required Qualifications

High school diploma or GED required.

Technical training, industrial maintenance certification, electrical training, or equivalent practical experience preferred.

Minimum of 5 years of industrial maintenance experience, or an equivalent combination of education and demonstrated technical proficiency.

Demonstrated ability to independently troubleshoot industrial electrical systems through 480 VAC, including low‑voltage electronic control signals down to 10 mV.

Proficiency using digital multimeters, clamp meters, and other appropriate electrical diagnostic equipment.

Strong working knowledge of PLC‑controlled equipment and industrial electrical components.

Experience troubleshooting VFDs, servo motors, servo drives, and automated positioning systems.

Strong mechanical troubleshooting skills involving gearing, bearings, power transmission, and rotating machinery.

Demonstrated proficiency troubleshooting and repairing pneumatic control systems.

Ability to read and interpret electrical, mechanical, and pneumatic diagrams.

Ability to independently diagnose complex equipment failures and implement effective repairs.

Ability to communicate technical issues clearly and accurately document work performed.

Hydraulic system experience is not required for this position.

Safety Responsibilities

Follow established Lockout/Tagout (LOTO) procedures before performing maintenance or repairs requiring hazardous‑energy isolation.

Follow electrical safe work practices, including appropriate shock and arc‑flash protective measures.

Perform energized electrical diagnostics only when qualified, authorized, and necessary under approved safety procedures.

Maintain machine guarding, interlocks, emergency stops, and other engineered safety devices.

Identify and report unsafe equipment conditions, near misses, and potential hazards.

Exercise Stop Work Authority when conditions present an unacceptable safety risk.

Maintain a clean, organized, and safe working environment.

Physical and Work Requirements

Ability to stand, walk, bend, kneel, reach, and work around industrial manufacturing equipment for extended periods.

Ability to safely lift and handle tools, components, and replacement parts consistent with company lifting requirements.

Ability to work from approved ladders or elevated platforms when necessary.

Ability to work in production environments with moving machinery, noise, and varying temperatures.

Ability to respond to equipment failures and production interruptions as required by operational needs.

Ability to distinguish equipment indicators, interpret instrument readings, and perform detailed mechanical and electrical inspections.

Level III Performance Expectations

A Maintenance Technician III is expected to demonstrate technical competence beyond routine maintenance and component replacement.

The individual must be capable of:

Independently diagnosing and resolving complex electrical, mechanical, pneumatic, and servo‑control problems.

Understanding how multiple machine systems interact and identifying the underlying cause of equipment failures.

Completing technically advanced repairs with minimal supervision.

Restoring equipment to safe, reliable operating condition while minimizing unnecessary production downtime.

Providing technical assistance and sharing troubleshooting knowledge with other maintenance personnel.

Identifying opportunities to improve equipment performance, reduce recurring failures, and support long‑term manufacturing reliability.

Qualifications

Preferred Qualifications:

Previous maintenance experience within window, door, glass, or related building‑product manufacturing.

Familiarity with glass cutting tables, glass handling systems, insulating glass equipment, and related manufacturing machinery.

Experience with vinyl window fabrication equipment, including cutting, welding, corner cleaning, routing, and automated assembly systems.

Experience with industrial automation, PLC diagnostics, HMI interfaces, and machine sequencing.

Experience with servo motion control, electronic positioning, and encoder feedback systems.

Familiarity with computerized maintenance management systems and preventive maintenance programs.

Experience supporting equipment reliability improvements and root‑cause failure analysis.

Additional Information

Our Location:2225 S 75th Ave Suite 140 Phoenix, AZ 85043

Why work for Cornerstone Building Brands?

Our teams are at the heart of our purpose to positively contribute to the communities where we live, work and play. Full-time* team members receive** medical, dental and vision benefits starting day 1. Other benefits include PTO, paid holidays, FSA, life insurance, LTD, STD, 401k, EAP, discount programs, tuition reimbursement, training, and professional development.

*Full‑time is defined as regularly working 30+ hours per week. **Union programs may vary depending on the collective bargaining agreement.

Cornerstone Building Brands 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, pregnancy, genetic information, disability, or status as a protected veteran. You can find the Equal Employment Opportunity Poster here . You can also view Your Right to Work Poster here along with This Organizations Participation in E-Verify Poster here .If you'd like to view a copy of the company's affirmative action planfor protected veterans or individuals with disabilities or policy statement, please contact Human Resources at 281-897-7788 or [e-mail]. If you have a disability and you believe that you need a reasonable accommodation in order to search for a job opening or to submit an online application, please contact Human Resources at 281-897-7788 or [e-mail]. This email is used exclusively to assist disabled job seekers whose disability prevents them from being able to apply online. Only emails received for this purpose will be returned. Messages left for other purposes, such as following up on an application or technical issues not related to a disability, will not receive a response.

All your information will be kept confidential according to EEO guidelines.

Must be at least 18 years of age to apply.

Note to External Recruiters

Cornerstone Building Brands does not accept unsolicited resumes and will not pay fees for any candidate submissions that were not expressly authorized.