Boiler Mechanic

Thermal Tech Inc.; Jacksonville (FL); On-site; USD 34,440,000 - 48,216,000; Full time

Job summary

Thermal Tech Inc. in Jacksonville, FL seeks a Boiler Mechanic to perform welding, mechanical system work, piping, and pressure vessel repairs. The role covers heat exchangers, pumps, and fittings for commercial and industrial customers.

You will fabricate, weld, and install components, follow ASME code procedures, and support preventive maintenance with attention to detail. This is a hands-on field position in industrial environments requiring safety compliance.

Qualifications

• Experience with welding on piping, fittings, flanges and pressure vessel components.
• Ability to perform fixed-position 6G pipe welds to code and document quality.
• Fabricate and weld brackets, supports, and structural components.
• Proficient torch operation for cutting, heating, and fitting preparation.

Responsibilities

• Weld about 30% of time per the schedule and ASME pressure vessel work procedures.
• Install, replace, and maintain heat exchangers; perform tube rolling and shell inspections.
• Perform full pressure vessel repairs including shell patches and nozzle replacements.
• Open, inspect, and close boilers and pressure vessels per PM schedule; document findings.
• Install, repair, and replace piping; lay out from blueprints and drawings; service pumps and related equipment.
• Complete work orders and as-built documentation; respond to emergency calls; maintain valid driver license.

Skills

Welding

Pipe fitting

Mechanical aptitude

Blueprints reading

Tools

Welding torch

Job description

As a Boiler Mechanic you'll spend your time on stick and TIG welding, with the rest split across mechanical systems, piping, pump work, heat exchanger installs, and full pressure vessel repair — real variety, real responsibilityacross a diverse book of industrial and commercial customers.

Responsibilities

Welding (~30% of time)

• Perform STICand TIG weldingpipe, fittings, flanges, and pressure vessel components following approved welding code procedures.
• Execute fixed-position 6G pipe welds to code; maintain weld quality and documentation standards required for ASME pressure vessel work.
• Fabricate and weld custom brackets, supports, and structural components as required during installation and repair projects.
• Use torch proficiently for cutting, heating, and fitting preparation

Heat exchangers & pressure vessels

• Install, replace, and maintain heat exchangers; perform tube rolling, bundle removal and re-installation, and shell inspection.
• Perform full pressure vessel repairs including shell patch welding, nozzle replacement, refractory removal and replacement, and re-certification support.

Preventive maintenance

• Open, inspect, and close boilers and pressure vessels per PM schedule; document findings and condition of internal components with attention to detail and accuracy.
• Re-gasket flanges, manholes, handholes, and access covers using correct gasket materials and torque specifications.
• Perform burner service and safety-valve testing as part of scheduled PM visits.
• Perform general maintenance tasks including lubrication, hardware replacement, and minor repairs to keep equipment in reliable operating condition.

Mechanical work & piping

• Install, repair, and replace piping systems; perform pipe threading, fitting, and layout from blueprints anddrawings.
• Install, align, and service pumps and associated mechanical equipment; perform packing, seal, and coupling replacements.
• Size pipe, valves, and system components to meet design specifications.
• Perform minor rigging during equipment installation — including lifting, positioning, and securing boilers, heat exchangers, pumps, and vessels using appropriate rigging hardware and practices.

• Complete work orders, daily activity reports, and as-built documentation accurately and on time.
• Maintain a valid driver's license and clean driving record.
• Work overtime and weekends as necessary; respond to emergency service calls.
• Perform other related duties as assigned by the Service Manager.

Physical requirements

Must be physically fit and able to: work with hands above the head for extended periods; carry a 50 lb pail 50 feet without difficulty; climb and descend ladders; and bend, kneel, and crouch for extended periods. Work takes place in industrial and mechanical room environments including confined spaces and extreme temperatures. PPE including welding gear, respirator, and fall-arrest harness is required.

At Thermal Tech Inc, our core values—Customer Driven & Focused, Respect for People and Policy, and Doing the Right Thing—define who we are and guide everything we do. Our purpose is “Helping the Customer Remove the Worry,” targeting medium to large commercial and industrial customers who value consistent service and innovative solutions. We follow a proven process from needs assessment to lifelong partnership, committed to delivering total system efficiency and reliability. If you share our values and seek to join one of the fastest-growing companies in Central/North Florida and South Georgia, we invite you to join our dynamic team.