Welder: Types, Duties, Training, Certification and Salary

A welder is a skilled tradesperson who joins, fuses, or cuts metal parts with heat-based equipment. A welder applies heat from an electric arc or a gas torch to the edges of two metal pieces. The heated edges melt and cool into one permanent bond. The permanent bond holds together the steel frames, pipelines, ship hulls, and machinery that manufacturing and construction depend on. The workforce behind those bonds divides by the process it runs. A MIG welder feeds wire through a gun, a TIG welder holds a tungsten electrode above the joint, and a laser welder directs a focused beam along it. Every process ends in the same outcome of one metal piece where two once existed.

The importance of a welder lies in the permanence of that outcome, since a welded joint cannot be unbolted or peeled apart once the metal has cooled. Permanent joints place the trade inside metal fabrication plants, machinery plants, and structural steel projects. The job outlook for welding reflects a stable occupation with slow growth and a large volume of yearly openings created by retirement. Retirement openings favor a candidate who knows the types of welder, the duties an employer expects, the training and certification that prove the skill, and the salary the trade pays. Each facet rests on the definition of the occupation.

What is a Welder?

Welder using heat or pressure to join metal parts, with weld joints inspected for strength and quality

A welder is a production worker who uses hand-held or remotely controlled welding, flame-cutting, soldering, or brazing equipment to join fabricated metal components. The production worker melts a joint with heat and adds filler metal, which cools with the two components into a single piece. The word welder names the person and not the machine, because the machine that supplies the arc is called a welding machine. The occupation sits in a statistical group with cutters, solderers, and brazers. The United States Bureau of Labor Statistics (BLS) records 457,300 jobs in that group for 2024. BLS projects growth in welding jobs of 2 percent between 2024 and 2034, a rate slower than the average for all occupations. Slow growth describes the job count and not the daily work.

What does a Welder do?

A welder works by aligning prepared metal parts and fusing them to blueprint specifications. The blueprint tells the tradesperson where each seam sits and which dimensions the assembly must meet. Those dimensions govern the preparation stage. In the preparation stage the operator cleans the surfaces, clamps the workpieces, and sets the heat. Heat then travels through a torch or an electrode into the joint. The operator fills the joint with molten metal in a flat, vertical, or overhead position. A sagging weld pool in the overhead position weakens the seam. A weak seam is caught at the finishing stage, where the worker grinds the edges until the parts fit. Some tradespeople specialize in gas welding or robotic welding alone, while others combine welding, cutting, and soldering. The work of a welder in every specialization reduces to applying heat and filler metal until a strong bond forms. The process behind that bond defines the type.

What are the Types of Welder?

Six welder specialties: structural steel, pipe, aerospace, fabrication, underwater and robotic welding

There are six main types of welder based on the process the worker runs and the setting the worker welds in, and they are listed below. The types of welding jobs are the MIG welder, the TIG welder, the stick welder, the laser welder, the spot welder, and the underwater welder.

1. MIG Welder

A MIG welder is a metal inert gas operator who feeds a continuous wire electrode through a gun under a shielding gas. The continuous wire melts into the joint at a steady rate, which gives a fast and even bead on steel or aluminum sheet. Employers place the MIG operator on assembly lines where speed outweighs fine finish.

2. TIG Welder

A TIG welder is a tungsten inert gas operator who holds a non-consumable tungsten electrode over the seam and feeds filler rod by hand. The hand-fed rod gives full control of the weld pool on thin or reactive metal, which makes the TIG welder the aluminum welder of choice. Employers assign the TIG operator to aerospace and stainless steel joints.

3. Stick Welder

A stick welder is an arc welder who strikes an electric arc between a flux-coated consumable electrode and the workpiece. The flux coating burns into a protective slag, which lets the arc welder work outdoors in wind and on rusty steel. Employers send the stick operator to structural steel, pipeline, and repair sites.

4. Laser Welder

A laser welder is a beam operator who directs a focused laser along the seam to melt a narrow, deep joint. The narrow beam puts little heat into the surrounding metal, which keeps thin parts from warping. A seam that never warps needs little finishing. Employers pair the beam operator with automated cells in precision manufacturing.

5. Spot Welder

A spot welder is a resistance operator who presses two overlapping sheets between electrodes and passes current through the contact point. The current heats the contact point into a small fused spot, which joins the sheets without filler metal. Employers station the resistance operator on automotive and appliance assembly lines.

6. Underwater Welder

An underwater welder is a commercial diver who welds and cuts submerged steel on offshore rigs, pipelines, and ship hulls. The submerged work combines diving skill with wet or hyperbaric welding, which raises the hazard level and the pay level above shop work. Employers recruit a diver who holds both a diving and a welding qualification.

The table below compares the six types of welder on the heat source, the joint formed, the metal or site, and the employer placement.

Type

Heat Source

Joint Formed

Metal or Site

Employer Placement

MIG Welder

Arc from a continuous wire electrode under a shielding gas

Fast, even bead fed by the melting wire

Steel or aluminum sheet

Assembly lines where speed outweighs fine finish

TIG Welder

Arc from a non-consumable tungsten electrode

Controlled weld pool fed by a hand-held filler rod

Thin or reactive metal, including aluminum and stainless steel

Aerospace and stainless steel joints

Stick Welder

Arc from a flux-coated consumable electrode

Bead laid under a protective slag from the burning flux

Rusty steel outdoors in wind

Structural steel, pipeline, and repair sites

Laser Welder

Focused laser beam directed along the seam

Narrow, deep joint with little heat in the surrounding metal

Thin parts that warp under wider heat

Automated cells in precision manufacturing

Spot Welder

Electric current passed through the contact point between electrodes

Small fused spot joined without filler metal

Two overlapping sheets

Automotive and appliance assembly lines

Underwater Welder

Wet or hyperbaric welding arc on submerged steel

Weld or cut made under water at a raised hazard level

Offshore rigs, pipelines, and ship hulls

Employers that require both a diving and a welding qualification

Choosing among the MIG, TIG, stick, laser, spot, and underwater types lets a candidate match a process to the metal, the site, and the pay they want. Miller welder, Lincoln welder, and YesWelder name the machine brands the trade operates and not a type of worker. A brand names the equipment, while a type names the work, and the work is fixed by the duties that every type shares.

What are the Duties of Welder?

Welder duties: read blueprints, prepare metal, set equipment, weld joints, inspect welds and maintain equipment

The main duties of a welder are reading blueprints, measuring parts, preparing workpieces, welding joints in position, monitoring the weld, and maintaining equipment, and they are listed below. The six duties appear in every welding job description because each one protects the strength of the finished joint.

1. Reading Blueprints

Reading blueprints is the duty of interpreting the drawings, symbols, and sketches that specify where and how each joint is welded. The drawing gives the operator the joint type, the weld size, and the sequence of seams. A correct sequence prevents distortion, since heat applied in the wrong order pulls the parts out of line. Supervisors treat blueprint reading as the first of the welder responsibilities on any job.

2. Measuring Parts

Measuring parts is the duty of calculating and checking the dimensions of the components to be welded before the arc is struck. The check confirms that cut lengths, angles, and gaps match the drawing within tolerance. A gap outside tolerance starves the joint of filler or burns through the base metal. Supervisors expect the operator to measure twice and weld once.

3. Preparing Workpieces

Preparing workpieces is the duty of cleaning the material surfaces and aligning and clamping the parts so the seam stays fixed. Clean surfaces keep rust, oil, and paint out of the weld pool, where contamination creates porosity. Firm clamping holds the alignment while the metal expands and contracts. Supervisors judge a weld by the fit-up that preceded it.

4. Welding Joints in Position

Welding joints in position is the duty of fusing components in flat, vertical, horizontal, or overhead positions with the process the job specifies. Each position changes how gravity acts on the molten pool, so the operator adjusts travel speed and angle to keep the bead uniform. Supervisors qualify an operator position by position rather than once for all.

5. Monitoring the Weld

Monitoring the weld is the duty of watching the fitting, burning, and welding processes and adjusting heat to avoid overheating, warping, or expansion. Excess heat distorts the assembly and weakens the metal beside the seam. A watched arc reveals cracks and incomplete fusion while the joint is still open for repair. Supervisors rely on the operator's eye as the first inspection of every weld.

6. Maintaining Equipment

Maintaining equipment is the duty of keeping welding machines, torches, cables, and consumables in working order. A clean torch and a sound cable deliver a stable arc, and a stable arc delivers a consistent bead. Supervisors hold the operator accountable for the condition of the tools at the end of a shift.

Carrying out the blueprint, measuring, preparation, positional welding, monitoring, and maintenance duties together lets the tradesperson produce joints that pass inspection at any site where the trade is practiced.

Where does a Welder Work?

Welder work settings including manufacturing plants, construction sites, repair shops, shipyards and offshore environments

A welder works in manufacturing plants for the most part, with construction sites, repair shops, and self-employment absorbing the remainder. Manufacturing places the tradesperson in fabricated metal, machinery, and vehicle body plants, where parts move along a production line. Construction places the worker on steel frames, bridges, and pipelines, where the parts stay fixed and the worker moves. The site decides the welding work environment. A pipeline site puts the operator outdoors in all types of weather. A factory floor keeps the operator indoors in a confined area designed to contain sparks and glare. Sparks and glare explain the protective helmet and gloves worn in every setting. BLS lists scaffold work, heavy lifting, and overhead welding among the physical conditions of the trade. BLS puts the share of the combined group employed in manufacturing at 61 percent for 2024. Those manufacturing settings open to a candidate through training.

How to Become a Welder?

Becoming a welder requires five stages. The stages are the training for a welder, the credentials required for a welder, the apprenticeship for a welder, the skills required for a welder, and the hiring route for a welder. The training stage covers secondary education and a welding program. The credential stage covers the Certified Welder test plus the code and safety qualifications. The apprenticeship stage covers a sponsored program and a helper position. The skills stage covers blueprint reading and physical stamina. The hiring stage covers the target industries and the specialization. BLS sets the typical entry-level education for the occupation at a high school diploma or equivalent plus technical and on-the-job training. The five stages are discussed below.

1. What is the Training for a Welder?

The training for a welder is classroom instruction in welding theory combined with supervised practice on welding equipment. The classroom portion teaches metallurgy, welding codes, shop math, and blueprint reading. The practice portion builds control of the torch, the filler rod, and the heat of the joint on test coupons in flat, vertical, and overhead positions. Welding training runs in two steps. The steps are completing the required education and enrolling in a welding program.

1.1 Complete the Education Required to Be a Welder

Earn a high school diploma or a GED before entering a welding program. The education required to be a welder is this secondary credential. BLS lists no degree above it for entry. High school courses in geometry, algebra, physics, and shop prepare a student for the measurement and heat calculations of the trade.

1.2 Enroll in a Welding Program

Choose a welding program at a vocational-technical school, a community college, or a private trade school. A welding certificate program lasts 6 months to 2 years. The program covers shielded metal arc welding (SMAW), gas metal arc welding (GMAW), and gas tungsten arc welding (GTAW). The coursework adds welding codes such as the American Welding Society (AWS) and American Society of Mechanical Engineers (ASME) standards. The U.S. Army delivers the same instruction through the 91E welder specialty.

2. What are the Credentials Required for a Welder?

The credentials required for a welder are voluntary performance qualifications rather than a government license. No federal welder license exists. A welding credential certifies that the holder produced a sound weld under controlled test conditions. The primary credential is the AWS Certified Welder (CW) qualification. The two credential steps are passing the Certified Welder test and adding the code and safety qualifications.

2.1 Pass the AWS Certified Welder Test

Take the Certified Welder performance test at an AWS Accredited Test Facility (ATF). The test requires welding a sample joint in front of an examiner under a code standard such as AWS D1.1 for steel. The resulting certificate names the process, the position, and the material that the holder qualified on. One example is stick welding on carbon steel plate. Employers screen applicants against the certificate rather than the diploma.

2.2 Add Code and Safety Qualifications

Obtain process-specific certificates from the National Center for Construction Education and Research (NCCER) for SMAW or GMAW when a contractor or a union program requires them. Welding on boilers, gas pipelines, or nuclear systems demands qualification under the ASME Boiler and Pressure Vessel Code. Construction welders add the Occupational Safety and Health Administration (OSHA) 10-hour safety training, known as OSHA-10, to the certificate file. The Certified Welding Inspector credential belongs to inspection roles and sits outside the entry credential set.

3. What is the Apprenticeship for a Welder?

The apprenticeship for a welder is a structured program that pairs classroom instruction with paid, supervised welding work under a union or an employer sponsor. A welding apprenticeship lasts 2 to 4 years. The duration answers how long it takes to become a welder by the sponsored route. Formal apprenticeship standards for welding are registered under the U.S. Department of Labor. The two routes into practical experience are registering with a sponsored apprenticeship and starting as a welder helper.

3.1 Register with a Sponsored Apprenticeship Program

Welder apprenticeship combining paid on-the-job training with classroom instruction

Apply to a union or employer apprenticeship that follows a registered standard. One welding standard published by AWS in 2023 sets 1,744 hours of related instruction and 8,000 hours of on-the-job training. The standard spreads those hours across 4 years. Apprentices split each week between classroom theory and supervised welding beside journey-level welders. The logged hours become the experience record that a later employer reads.

3.2 Start as a Welder Helper or Trainee

Take a welder helper or trainee position when no apprenticeship opening exists. A helper learns under an experienced welder while handling material preparation and fit-up. An employer that hires a trainee without prior experience still expects a completed formal training program. The helper route converts into a welder position once the trainee passes the employer's own performance test.

4. What are the Skills Required for a Welder?

The skills required for a welder are manual dexterity, blueprint interpretation, knowledge of how heat affects metal, and physical stamina. Blueprint interpretation converts a drawing into joint locations and dimensions. Metal knowledge lets the operator adjust the heat before a joint overheats. Physical stamina carries the worker through overhead, stooping, and standing positions. The two skill-building steps are building blueprint and measurement skills and developing stamina with safety habits.

4.1 Build Blueprint Reading and Measurement Skills

Read and interpret the blueprint before striking an arc. Blueprint reading identifies the joint type, the weld symbol, and the welding position. Measurement then calculates the dimensions of the parts to be welded and checks the fit of the clamped pieces. Inspection of the materials before welding catches a defect that a finished weld would hide. Monitoring the weld pool and adjusting the heat close the sequence.

4.2 Develop Physical Stamina and Safety Habits

Train the body for heavy lifting, bending, and overhead work on scaffolds and in confined spaces. Welding exposes the worker to ultraviolet light, hot metal, sparks, electric shock, and fumes. The fumes contain manganese, lead, and cadmium. Protective gear adds heat and weight to every shift. Fume extraction and a fire watch in hot-work areas complete the safety habit set.

5. How to Get Hired as a Welder?

Getting hired as a welder depends on presenting completed training and passed performance tests to the industries that employ welders. Employers prefer applicants who completed a training or credentialing program. Manufacturing holds the largest share of those industries, so the plant is the first application target. The two hiring steps are targeting the employing industries and presenting certificates while advancing into a specialization.

5.1 Target the Industries That Employ Welders

Apply first to fabricated metal product plants, which employ 68,110 welders, and to machinery manufacturers, which employ 60,390. Motor vehicle body and trailer manufacturing holds 24,950 welding positions. Foundation and structure contractors hold 18,210, and ship and boat building holds 14,760. Texas, California, and Ohio rank as the three largest states by welder employment. Manufacturing plants run multiple shifts, so night and overtime openings cluster there.

5.2 Present Certificates and Advance with a Specialization

Supply each Certified Welder certificate with the application, since the certificate names the exact process and material the applicant qualified on. Specialization by process, such as aluminum or GTAW, or by application, such as pipeline, structural, or aerospace welding, raises pay above the general welder rate. Welders in air transportation earn a mean of $102,900. Completing the five stages in order lets a candidate move from a diploma to a certified, specialized welding position. That position fixes the pay the trade offers.

What is the Average Salary For a Welder?

Welder salary snapshot showing annual, hourly, monthly and quarterly pay

The average welder salary is $52,640 per year, which equals a mean of $25.31 per hour. The per-month equivalent is $4,386.67 and the per-quarter equivalent is $13,160. Both figures are arithmetic divisions of the annual mean rather than separate estimates. BLS sets how many hours a welder works at a 40-hour week, which totals 2,080 hours per year. Overtime lifts earnings above that base. The median stands at $48,940 and the 75th percentile at $59,900. The welder annual salary after these calculations averages $52,640 per year in the BLS May 2023 wage survey.

Is There a Demand For Welders?

Yes, there is a demand for welders, since BLS projects 45,600 openings per year for welders, cutters, solderers, and brazers from 2024 to 2034. The job outlook for welders turns on that openings count, since the yearly openings equal 10% of the 2024 base employment. That ratio is an arithmetic division rather than a BLS estimate. Most of those openings replace welders who retire or transfer to other occupations. The demand for welders therefore rests on replacement need in manufacturing and infrastructure, not on rapid job growth.

Is it Necessary to Wear Welder Mask?

Yes, a welder mask is necessary, because OSHA requires a welding helmet or hood with a filter lens during arc welding. The filter lens blocks the ultraviolet and infrared radiation of the arc. Unfiltered arc radiation causes burns and a condition called arc eye. The lens must meet the ANSI Z87.1 standard under the personal protective equipment rule at 29 CFR 1910.133. Side shields or goggles alone do not satisfy the rule. The helmet protects the face and eyes only, so the welding industry pairs it with a respirator or ventilation against fumes. The protective gear, the certificates, and the training then become the record that a welder resume carries.

How to Create a Resume for Welder?

A welder resume is a written record of welding processes, positions, materials, and credentials. An applicant tracking system (ATS) reads that record before a hiring manager does. The record passes the screen when its wording mirrors the welder job description for resume keywords, such as SMAW, flux-cored arc welding (FCAW), cutting, and blueprint reading. Unmudl's free ATS Resume Builder at unmudl.com/create-resume arranges the record into a single-column format. Screening software parses the single-column format without error. The builder opens without an account and asks for a free sign-up only at the download stage. The five steps for building a welder resume on Unmudl are listed below. The steps are opening the builder, entering contact details and a summary, adding work experience and skills, including education and credentials, and reviewing, saving, and downloading the file.

  • Open the Unmudl resume builder: Go to unmudl.com/create-resume, where the Build a Resume that Gets You Hired page starts the tool with no sign-in.
    Unmudl resume builder opening screen with the Build My Resume button
  • Enter contact details and a summary: Type your name, phone, email, and a two-line summary that states your welding focus, such as five years of fabrication experience.
  • Add work experience and skills: List each welding job with the processes performed there, for example SMAW and FCAW welding, cutting, or blueprint reading, so the builder highlights the matching keywords.
    Selecting basic information and profile details in the Unmudl resume builder
  • Include education and credentials: Record your diploma, welding certificates, apprenticeship hours, and safety training under the standard Education and Skills headings that the builder preserves.
  • Review, save, and download: Check the formatted page, create the free Unmudl account when prompted, and export the ATS-ready PDF for every application.

Following the five steps in the builder gives a candidate a keyword-matched PDF that is ready to attach to a job application.

How to Apply For Welder Jobs?

A welder job application is a submission that pairs a completed candidate profile with one specific posting on a job board. Unmudl's job board at unmudl.com/search-jobs lists welder postings under the occupation code 51-4121.00. The postings include Welder at Fulghum Industries in Wadley, Georgia, Assembler Welder at Epiroc, and Fitter/Welder at Arcosa. Every listing on the board carries an Apply Now button. The button asks for a sign-in before the application proceeds. A welder career on the platform therefore begins with a verified profile and advances posting by posting from that profile. Applying to welder jobs on Unmudl takes six steps, which are listed below. The steps are going to the job board, searching for welder positions, selecting a listing, clicking Apply Now, completing the profile, and applying for the job.

  • Go to Unmudl's job board: Open unmudl.com/search-jobs, where the Find Jobs That Match Your Skills interface shows fields for job title and location.
  • Search for welder positions: Enter Welder or the occupation code 51-4121.00 in the title field and set a location filter to narrow the cards to welding roles.
    Searching for welder jobs on the Unmudl job board
  • Select a welder listing: Click a result such as the Fulghum Industries posting and read the employer, location, posting date, qualifications, and benefits on the listing page.
  • Click Apply Now: Press the button on the job page, and sign in or create a free account when the Sign in to apply prompt appears.
  • Complete your profile: Verify the account and add skills, work experience, and the resume, since the platform requires a finished profile before any application.
  • Apply for the job: Return to the listing, click Apply Now again, and submit through Unmudl or through the employer's own form when the posting redirects there.
    Welder job listing on Unmudl with an Apply Now panel

Working through the six steps carries a candidate from a keyword search to a submitted application. The same platform lists the course that adds a credential to that profile.

What is the Best Welder Course?

The best welder course is the one that builds the electrical and mechanical skills a welder uses beside the torch in maintenance and repair work. On Unmudl that course is Multi-Craft Technician: Level 1. Unmudl lists no course dedicated to a welding process, so the course choice rests on the skills that surround the weld. Multi-Craft Technician: Level 1 sits in Unmudl's catalog of technical courses alongside programs such as Introduction to Mechatronics. The course covers the broad electrical and mechanical skill set of a production crew. Fabricated metal and machinery manufacturing plants, the two largest employers of the trade, run such crews. A process qualification paired with the Multi-Craft Technician course widens the range of maintenance and fabrication roles open to the tradesperson. Those roles include work beside computer numerical control (CNC) technicians on the same shop floor.

What is the Difference between Welder and CNC Technician?

The difference between a welder and a CNC technician is that a welder fuses metal parts into one permanent joint while a CNC technician cuts stock into a dimensioned part. A CNC technician is a manufacturing worker who sets up, runs, and monitors computer-controlled mills and lathes from pre-written programs. The goal of the CNC technician is dimensional accuracy, whereas the goal of the welder is joint strength.

The tools of the two roles split along the same line. A welder holds an arc torch, electrodes or wire, and a filtered helmet, as when joining I-beams on a construction site. A CNC technician loads G-code, fixtures, and end mills into a milling machine, as when machining an engine mount. The welder owns the joint, and the CNC technician owns the shape within the wider technician category.

What is the Difference between Welder and Technician?

A welder differs from a technician in that a welder is one named occupation while a technician is a category of skilled workers spanning many occupations. A technician is a worker who applies technical knowledge to install, operate, test, or maintain a system in a field such as electrical, mechanical, laboratory, or IT work. A technician aims at a functioning system, whereas a welder aims at a sound metal joint.

The equipment follows the same division. A welder works with a welding power source, a torch, filler wire, and protective gear, as when sealing hull plates in a shipyard. A technician works with the instruments of one specialty, such as a multimeter in electronics or diagnostic software in an auto shop. Welding is one technician skill, and technician work reaches beyond welding into maintenance, assembly, and support.

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Last updated on:
October 19, 2026
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