Industrial HVAC Maintenance Technician III -… at Caterpillar · Seguin

Career Area: Operations

Job Description:

Your Work Shapes the World at Caterpillar Inc.

When you join Caterpillar, you're joining a global team who cares not just about the work we do – but also about each other. We are the makers, problem solvers, and future world builders who are creating stronger, more sustainable communities. We don't just talk about progress and innovation here – we make it happen, with our customers, where we work and live. Together, we are building a better world, so we can all enjoy living in it.

About IPSD

Caterpillar’s Industrial Power Systems Division (IPSD) designs, tests and manufactures 0.5 to 18L engines that not only power Caterpillar machines, but also power over 5000 other applications including Marine, Petroleum, Industrial Applications, Electric Generators, and Locomotives. Caterpillar’s company strategy includes sustainability as one of four focus areas and IPSD is engaged and actively preparing green energy solutions for the future.

Job Summary

As an Industrial HVAC Maintenance Technician III, you will ensure the reliable operation, safety, and efficiency of complex commercial and industrial HVAC systems across multiple facilities. In this role, you will perform advanced troubleshooting, maintenance, and repairs on chillers, compressors, cooling towers, heat exchangers, and other large‑scale mechanical systems. You will work independently, respond to service needs with minimal supervision, and travel between sites as required. This position is ideal for a licensed HVAC professional with strong industrial/commercial experience who thrives in hands‑on environments and takes pride in keeping critical building systems operating at peak performance.

What you will do:

• Perform preventive, corrective, and predictive maintenance on industrial HVAC systems, including chillers, cooling towers, rooftop units, air handlers, and compressors
• Troubleshoot, diagnose, and repair HVAC mechanical and electrical issues to minimize downtime and maintain optimal building performance
• Inspect, maintain, and repair shell‑and‑tube and plate‑and‑frame heat exchangers
• Work independently to respond to service requests across multiple facilities with minimal disruption to operations
• Monitor and maintain HVAC control systems, ensuring proper calibration and configuration
• Conduct system testing, airflow measurements, refrigerant checks, and equipment performance evaluations
• Maintain accurate documentation including work orders, equipment logs, parts usage, and service reports
• Recommend process improvements to enhance system reliability, energy efficiency, and environmental compliance
• Work as a contributing member of the maintenance team to provide the best service and maximize uptime of the production facilities
• Complete work order processes documentation for complete work history and parts inventory tracking
• Submit and assist with the creation and resolution of Continuous Improvement Cards
• Follow all safety standards including lockout/tagout, refrigerant handling best practices, and OSHA/EPA requirements
• Work cooperatively as a team with engineering, operations, logistics, janitorial, quality, and environmental health and safety departments

What you will have:

• Active HVAC license or recognized HVAC Certification
• Minimum of 5 years of work experience in maintaining, troubleshooting, and repairing industrial/commercial HVAC systems
• Strong troubleshooting skills with chillers, compressors, cooling towers, air handlers, and large‑scale HVAC systems
• Experience working with refrigerants, recovery systems, leak detection, and EPA guidelines
• Ability to read and interpret mechanical drawings, HVAC schematics, wiring diagrams, and technical manuals
• Proficiency with standard HVAC tools, diagnostic instruments, gauges, and test equipment
• Solid understanding of industrial electrical systems including motors, contactors, relays, and VFDs
• Strong mechanical aptitude with pumps, bearings, belts, valves, and fluid/airflow systems

What would make you a top candidate:

• Experience servicing shell‑and‑tube or plate‑and‑frame heat exchangers
• Industrial facility maintenance experience in manufacturing, heavy equipment, or large commercial buildings
• Familiarity with building automation systems (BAS/BMS)
• EPA 608 Universal Certification

Physical Requirements:

• Ability to sit or stand for prolonged periods of time
• Ability to perform repetitive operations
• Ability to lift up to 35 lbs.

We are committed to ensuring a supportive and accommodating work environment for all employees. Please advise of any reasonable accommodation requests to facilitate your ability to perform the job’s essential functions.

Additional Requirements:

• Resumes are highly encouraged
• Former Caterpillar employees must meet rehire eligibility guidelines for consideration
• Must successfully complete a background, drug, and medical screening

Additional Information:

• 1st Shift: Monday – Thursday: 6:00AM – 4:30PM. Overtime as required.
• Local travel is required up to 60% to support facilities located in San Antonio, Schertz, & Seguin, TX.
• Relocation assistance is NOT available for this position.
• Visa Sponsorship is NOT available for this position.

About Caterpillar

Caterpillar Inc. is the world’s leading manufacturer of construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. For nearly 100 years, we have been helping customers build a better, more sustainable world and are committed and contributing to a reduced-carbon future. Our innovative products and services, backed by our global dealer network, provide exceptional value that helps customers succeed. 

Please ensure you frequently check the e-mail account you provided on your application, including the junk/spam folder, as this is the primary correspondence method in our recruiting process.

Summary Pay Range:

$31.50 - $41.00

Compensation and benefits offered may vary depending on multiple individualized factors, job level, market location, job-related knowledge, skills, individual performance and experience. Please note that salary is only one component of total compensation at Caterpillar.

Benefits:

Subject to plan eligibility, terms, and guidelines. This is a summary list of benefits.

• Medical, dental, and vision benefits*
• Paid time off plan (Vacation, Holidays, Volunteer, etc.)*
• 401(k) savings plans*
• Health Savings Account (HSA)*
• Flexible Spending Accounts (FSAs)*
• Health Lifestyle Programs*
• Employee Assistance Program*
• Voluntary Benefits and Employee Discounts*
• Career Development*
• Incentive bonus*
• Disability benefits
• Life Insurance
• Parental leave
• Adoption benefits
• Tuition Reimbursement

* These benefits also apply to part-time employees

Posting Dates: July 30, 2026 - August 6, 2026

Any offer of employment is conditioned upon the successful completion of a drug screen.

Caterpillar is an Equal Opportunity Employer, Including Veterans and Individuals with Disabilities. Qualified applicants of any age are encouraged to apply.

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