Welder

Together We Build – Partnership, Innovation, Excellence, and Safety

At Kelso Industries, 3,500+ employees across 30 companies work together to deliver exceptional HVAC, mechanical, plumbing, refrigeration, and electrical solutions nationwide. Join us to grow your career, make an impact, and be part of a team where innovation, excellence, and safety come first.

Recruiter Notice:
We respectfully ask external recruiters and staffing agencies not to submit candidates. We only accept direct applications.

Retrofit Technology is part of the Kelso Industries family of companies, a rapidly growing group of mechanical, electrical, and plumbing (MEP+) contractors committed to excellence in safety, quality, customer success, and craftsmanship.

Based in Bloomington, California, Retrofit Technology specializes in all aspects of commercial HVAC systems, including installation, maintenance, and service. Our team is equipped to handle projects from start to finish with precision and care. Backed by certified welders, electricians, and service technicians, we have the expertise to tackle even the most challenging HVAC retrofit and mechanical projects—delivering exceptional results every time.

We are seeking an experienced Pipe Welder to join our growing team and support mechanical and HVAC retrofit projects across Southern California.

This position is based out of Bloomington, CA and requires frequent travel to job sites throughout the region. A daily per diem is provided and hotel accommodations are covered by the company when overnight stays are necessary.

The Pipe Welder will be responsible for fabricating, assembling, and installing piping systems for commercial and industrial HVAC applications. The ideal candidate has hands‑on experience with multiple welding methods and piping materials, values safety and quality, and can work both independently and as part of a field crew.

• Weld and assemble piping systems using various methods (TIG, MIG, stick, brazing, soldering, etc.).
• Fit, align, and secure pipe systems and supports according to specifications and drawings.
• Read and interpret blueprints, schematics, and technical drawings.
• Fabricate and install copper, carbon steel, stainless steel, and PVC piping.
• Perform rigging, demo, and installation work on HVAC retrofit projects.
• Inspect completed welds to ensure compliance with codes and safety standards.
• Collaborate with project managers, foremen, and other trades to complete projects efficiently.
• Maintain a clean, safe, and organized work area in compliance with OSHA and company policies.

• High school diploma or GED equivalent.
• 3+ years of experience in pipe welding or mechanical retrofit environments.
• Proficiency in one or more of the following:
  • Soldering or brazing copper pipe
  • Welding carbon or stainless steel pipe
  • Fitting or threading steel and PVC pipe
• Ability to pass a pipe welding test (administered at our Bloomington shop).
• Skilled at reading and following mechanical drawings and specifications.
• Valid driver’s license and willingness to travel throughout Southern California.
• Strong attention to detail, reliability, and safety mindset.

• Hourly wage: $30 – $50 per hour (based on experience and certification)
• Per diem and hotel accommodations provided for overnight travel
• Paid travel time to and from job sites
• Comprehensive benefits package:
  • Medical and dental (50% employer paid)
  • 401(k) with up to 4% company match
  • Eligibility after 30 days of employment
• Paid Time Off (PTO) and company holidays
• Opportunities for long‑term growth within the Kelso Industries family

Kelso Industries celebrates diversity and is committed to creating an inclusive environment for all employees. We do not discriminate in any aspect of employment based on race, color, religion, national origin, ancestry, gender, sexual orientation, gender identity and/or expression, age, veteran status, disability, or any other characteristic protected by federal, state, or local employment discrimination laws where Kelso does business.