1476 Nucor Building Systems jobs in Irving, TX

3–5+ years of commercial HVAC experience.
Strong troubleshooting and diagnostic skills.
Experience working with rooftop units (RTUs), package units, and commercial refrigeration systems.
EPA Section 608 Certification required (Universal Required).
Valid driver's license and clean driving record.
Ability to read electrical schematics and mechanical drawings.
Works in field environments across residential job sites, climbing ladders and navigating uneven surfaces.
Regularly works in confined spaces and moves materials up to 50 pounds.
Operates hand and power tools and vehicles.
Must be able to see, hear, and exchange accurate information with customers and team members.
Regular exposure to outdoor weather, noise, and dust.

Outlier

Garland, TX 75040

2+ years of experience in backend engineering, AI automation, or complex systems integration
Proven ability to build and maintain production-grade software with modular separation (e.g., distinct services for data parsing, logic processing, and reporting)
Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases
Practical experience building for live, non-mocked environments and handling multi-turn system interactions
Outstanding attention to detail and the ability to provide clear, high-density technical feedback on complex system behaviors
This is a 1099 contract opportunity on the Outlier.ai platform
You must be authorized to work in your country of residence
If you are an international student, you may be able to sign up for Outlier if you are on a visa

Lex Cooling, Heating, Plumbing & Electrical

Plano, TX 75025

3–5+ years of commercial HVAC experience
Strong troubleshooting and diagnostic skills.
EPA Section 608 Certification required (Universal Required)
Valid driver's license and clean driving record
Experience working with rooftop units (RTUs), package units, and commercial refrigeration systems
Ability to read electrical schematics and mechanical drawings