Welder Pipefitter

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CT Mechanical has been dedicated to providing exceptional mechanical solutions since 2014. With a focus on delivering comprehensive services in plumbing, HVAC, and mechanical contracting, we specialize in servicing both residential and commercial properties. Rooted in family values, our company has offices in Gainesville, Jacksonville, Orlando, and Tampa, serving clients with dedication and professionalism.

CT Mechanical is seeking a skilled Stainless Steel & AC Duct Welder for field-based work on active job sites (this is not a fabrication shop role). You will weld, fit, and install stainless steel and sheet metal duct assemblies, transitions, plenums, and related HVAC components in the field. The ideal candidate brings strong TIG (GTAW) experience on thin-gauge stainless, can control heat and distortion, and understands airtight, code-compliant duct systems.

Experience collaborating with HVAC installers and sheet metal mechanics is highly valued.

• Perform field welding using TIG (GTAW) as the primary process on stainless steel duct and fittings; use MIG (GMAW) or spot welding where appropriate per spec.
• Prepare joints and fit-ups (cleaning, beveling where needed, precise tacking) to ensure proper penetration and appearance on thin-gauge material.
• Use argon back-purging on stainless welds when required to prevent oxidation/sugaring on the root side.
• Weld common duct joints (butt, lap, fillet) and continuous seams to achieve airtight, liquid-tight welds where specified.
• Read and interpret blueprints, isometrics, duct layouts, and welding symbols; verify dimensions and elevations in the field.
• Fabricate and install field-made transitions, takeoffs, angle rings/flanges, and equipment connections as needed on site.
• Control heat input and distortion on thin gauge (approx. 16–22 ga) materials; grind, brush, and finish welds to spec; perform passivation when required.
• Ensure welds comply with project specs, SMACNA standards, and applicable codes; follow NFPA 96 requirements on grease duct where applicable.
• Perform quality checks, including visual inspection and leak/pressure testing of welded duct sections when required.
• Coordinate daily with HVAC installers, sheet metal mechanics, foremen, and project managers to sequence work and avoid trade conflicts.
• Operate portable welding rigs, grinders, shears, notchers, nibblers, plasma cutters, and hand tools safely; maintain equipment and consumables.
• Follow all OSHA and company safety procedures, including lockout/tagout, hot work permitting, fire watch, fall protection, and confined space protocols.
• Maintain a clean, organized, and safe work area on active job sites; perform other duties as assigned.

• High school diploma or GED.
• 4 or more years of welding experience with stainless steel in HVAC/sheet metal or closely related field; strong TIG (GTAW) on thin gauge required.
• Demonstrated proficiency controlling heat/distortion on thin-gauge stainless; clean, uniform, code-compliant welds.
• Ability to read blueprints, duct drawings, and welding symbols; solid layout and measurement skills.
• Familiarity with SMACNA standards; understanding of NFPA 96 for grease duct where applicable.
• Experience with back-purging techniques and proper stainless preparation/finishing; basic knowledge of passivation.
• OSHA 10 preferred; ability to gain access to state and federal institutions.
• Must pass drug test and background check; valid driver’s license and reliable transportation.
• Comfortable working at heights, on lifts, ladders, and in varying weather conditions; able to lift up to 75 lbs and perform physically demanding tasks.
• Strong problem-solving skills, attention to detail, and a commitment to safety and quality.
• Team-oriented, with the ability to work independently on remote/field assignments.

At CT Mechanical, we foster a culture of excellence, integrity, and customer-centric service. Our core values – 'Do what you say, Do what it takes, Walk with purpose, Do the right thing' – guide us in every interaction, ensuring that we exceed expectations and uphold the highest standards of quality and professionalism. With a supportive and inclusive work environment, we prioritize collaboration, professional growth, and community involvement.

Join us at CT Mechanical and be part of a team committed to delivering exceptional mechanical solutions to our valued customers.

If you’re a dedicated Stainless Steel & AC Duct Welder ready to make an impact in the mechanical/HVAC industry, we encourage you to apply today. Please submit your resume and a brief cover letter outlining relevant stainless and duct welding experience to

Mid-Senior level

Full-time

Management and Manufacturing

Consumer Services