How to hire a welder (job description, interview questions, screening workflow)

A certification tells you someone passed a test on a specific process and position, on a specific day. It doesn't tell you whether the weld they lay down at 4pm on a Friday, alone in your shop, is the same quality as the one they laid down at 8am. At a small fabrication shop or manufacturer, there's usually no second welder checking the joint before it ships, no in-house inspector, and no redundancy if a weld fails after the part is out the door. The hire has to be someone whose habits hold up when nobody's watching: reading the print correctly, choosing the right process for the material and joint, running consistent beads under a deadline, and telling you the truth when something's harder than expected instead of rushing it out. This guide screens for that, not for a piece of paper.

What a welder actually does at a small fabrication shop

At a large manufacturer, a welder works a fixed station on a line, runs one process on one material all day, and has a quality department checking the output behind them. At a small fab shop or small manufacturer, the welder is usually working across multiple jobs, multiple materials, and sometimes multiple processes in the same week, with far less backup if something goes wrong.

That changes what the role actually requires. A welder at a small shop needs the hand skill, but also the judgment to make calls that a quality engineer or a lead would normally make at a bigger operation: which process fits this joint, whether the fit-up is good enough to proceed or needs to go back to the fabricator, when a print detail doesn't match what's actually in front of them and needs a question instead of a guess. There's less redundancy, and the stakes are real. A weld that doesn't hold under load isn't a scrap-rate statistic, it's a part that comes back, or worse, fails in the field with your company's name on it.

The core responsibilities, in practice:

• Reading blueprints, weld symbols, and specs to determine joint type, process, and weld size before starting
• Choosing the right process for the job, MIG, TIG, or stick, based on material, thickness, position, and what the part needs to do
• Setting up and running equipment correctly for the material and process, including selecting filler metal and adjusting parameters
• Inspecting fit-up before welding and flagging it back if it's not within tolerance, rather than welding it anyway
• Producing consistent, full-penetration welds that meet the print, and checking their own work rather than assuming it's fine
• Following PPE, ventilation, and fire watch procedures on every job, not just the ones someone happens to be walking by
• Working with minimal supervision, often the only welder on a job or shift, and knowing when to flag something up instead of pushing through it
• Communicating clearly and early about a defect, a material issue, or a timeline problem, instead of letting it surface at delivery

If you run a small shop, your welders are also your quality control and your liability at the same time. There's usually no one else checking the joint before it ships. That's worth naming when you post the role, because "welder wanted" undersells what you're actually asking someone to be responsible for.

Job description you can post today

Copy this, then adjust the specifics (your company name, hours, pay) to match your shop.

Welder
[Company name] is looking for a welder to join our fabrication team. You'll work across MIG, TIG, and/or stick welding depending on the job, read prints and weld symbols, and produce work that holds up without someone checking behind you.

What you'll do
Read blueprints and weld symbols to determine joint type and weld requirements. Select and run the right welding process for the material and application. Inspect fit-up before welding and flag issues instead of welding around them. Produce consistent, full-penetration welds that meet spec. Follow PPE, ventilation, and fire watch procedures on every job. Communicate early about defects, material issues, or anything that puts a deadline at risk.

What we're looking for
Hands-on experience with MIG, TIG, or stick welding on [your typical materials, e.g. mild steel, stainless, aluminum]. Ability to read blueprints and weld symbols. Comfort working with minimal supervision, often as the only welder on a job. AWS certification is a plus but not required. [Adjust this line if your work requires a specific code certification.]

Schedule
[Insert hours, e.g. Monday-Friday, 6am-2:30pm, with occasional overtime during busy periods]

[Insert pay, per your company's policy and any applicable state salary transparency requirements]

10 interview questions, and what a good answer sounds like

1. How do you decide between MIG, TIG, and stick for a given job?

You're checking for actual process judgment, not memorized definitions. A strong answer walks through the real tradeoffs: MIG for speed and general fabrication work, TIG for thinner material or where appearance and precision matter, stick for outdoor work, dirty or rusty material, or where you can't control the environment as tightly. A candidate who can't connect the process to the material, joint, and working conditions is telling you they've run equipment without understanding why, which shows up as inconsistent quality on jobs that don't match whatever they're used to.

2. Walk me through how you check a joint's fit-up before you start welding.

Listen for a real sequence: checking the gap, alignment, and cleanliness against the print or spec, and what they do when it's off. A strong answer says they'd flag bad fit-up back to whoever did the fabrication rather than welding around it or trying to compensate with more filler metal. A candidate who says they'd "just make it work" is telling you they'll paper over a problem instead of fixing it, which on a structural or load-bearing part is exactly the habit that comes back on you later.

3. What's your process for reading a weld symbol you're not immediately sure about?

Every welder eventually hits a print with a symbol they don't recognize or that seems to conflict with what's in front of them. A strong answer is specific: they'd stop and ask rather than guess, or cross-reference against the weld symbol chart, rather than proceeding on a best guess. A candidate who says they'd just "go with what makes sense" is telling you they'll interpret specs instead of following them, which is a real risk on a job you're not standing over.

4. Tell me about your PPE and safety habits on a typical day. What do you actually do, not what you're supposed to do?

Ask it this way on purpose. A strong answer is specific and automatic: proper respirator or ventilation for the material (especially anything galvanized or coated), fire watch when working near combustibles, and PPE that doesn't come off because it's hot or inconvenient. A candidate who treats the question as obvious and gives a vague answer, or admits they skip steps "when it's just a quick job," is telling you what happens on the days you're not in the shop.

5. Tell me about a weld or a job that turned out more complicated than you expected. What did you do?

Every experienced welder has this story: bad base material, a print that didn't match reality, equipment that wasn't behaving. Listen for whether they diagnosed the actual problem and adjusted, or pushed through and hoped it would hold. A strong answer names what they noticed, what they changed, and whether they looped in anyone else. A candidate who can't produce a real example, or whose answer is really about working faster to make up time, is a flag for a small shop where you're not there to catch it.

6. How do you handle it when you find a defect in your own work after the fact?

This tests honesty under a genuinely uncomfortable situation. A strong answer is direct: they'd flag it, explain what happened, and fix it or grind it out and reweld, even if it means admitting a mistake and losing time. A candidate who hedges, says they'd "probably just touch it up" without mentioning it, or seems uncomfortable even discussing the scenario, is telling you what happens to your quality control when nobody's checking behind them.

7. You're the only welder on a job and something doesn't match the print. How do you decide whether to keep going or stop and call someone?

Small shops don't have a lead standing over every job, so this tests whether a welder knows their own limits. A strong answer draws a real line: minor discrepancies they can resolve and note, anything that changes the joint's integrity or the part's function they stop and call before proceeding. A candidate who says they'd always push through, or who says they'd call for absolutely everything, is either overconfident or not ready to work unsupervised yet.

8. Tell me about a time a deadline was at risk because of something on your end, material, equipment, or the work itself. What did you do?

Listen for whether they communicated early or let it surface at delivery. A strong answer includes a specific story: they noticed the problem, said something as soon as they knew, and gave a real timeline instead of a hopeful one. A candidate who can't produce an example, or whose instinct is clearly to stay quiet and hope it works out, is a flag for a small shop where a missed delivery date is a customer relationship, not just an internal metric.

9. What's your attendance and reliability record like? Has anything ever come up that made you late or unavailable, and how did you handle it?

Ask this directly. A strong answer is honest that it happens occasionally, and specific about how they handled it: called ahead, gave real notice. A candidate who claims a perfect record with no specifics, or gets defensive at the question, is harder to read. On a small shop with one or two welders, a single no-show can shut down a job for the day, so this is worth real time.

10. How do you keep your work area and equipment in shape so you're not losing time to setup or cleanup?

Good welders treat their station like it's theirs to maintain. A strong answer describes an actual habit: checking consumables and gas before starting, keeping the area clear of hazards, cleaning up between jobs rather than letting it pile up. A candidate who says they "just deal with it as it comes" or has no real system is telling you to expect wasted setup time and a messier, less safe station.

A scorecard you can score candidates against

These questions only help if everyone interviewing is listening for the same thing, so score every candidate on the same signals instead of comparing gut feelings from separate conversations.

How to screen welder candidates without losing a week to it

Truffle is a candidate screening platform that combines resume screening, one-way video interviews, and talent assessments, so you can build a workflow around what actually matters for a hands-on trade role like this one.

For a welder, the résumé is often the least useful part of the application. Welders get sourced through Indeed listings, walk-ins, and word of mouth more than a polished LinkedIn profile, and plenty of skilled welders don't write resumes that reflect what they can actually do. This is the same dynamic you'll see if you also hire electricians, maintenance technicians, or production associates: keep the resume optional and lean on a structured process that checks real skill instead. Here's one that fits a small fabrication shop or manufacturer:

• Make the resume optional, not required. A lot of your strongest candidates learned welding through a vocational program or on the job and don't have a formatted resume to show for it. Where you do use resume screening, weight relevant experience and any certifications over formatting or presentation.
• A short one-way video interview before you commit an in-person slot. Ask 2-3 of the scenario questions above, like the fit-up question or the "found your own defect" question, so you can hear how someone thinks and how honest they are before you use up a shop visit on them. A one-way video interview surfaces judgment and communication, which is hard to read from a resume and much easier to hear on video.
• A manufacturing skills assessment to check the fundamentals before someone's on your floor. The manufacturing skills assessment lets you build a role-based stack, blueprint and measurement basics, safety judgment scenarios, attention to detail, so you're checking the reasoning behind the trade, not just years of experience on a resume.
• Verify certification where your work actually requires it. If a job calls for a specific AWS certification or code qualification, confirm it's current before you move forward. If your work doesn't require a specific certification, don't treat one as a proxy for skill either way, since it tells you someone passed a specific test on a specific day, not how consistent they are now.
• A practical weld test before an offer. Nothing replaces watching someone lay a bead on your own equipment and material. A short, real test, a fillet or butt joint that mirrors your actual work, checked by you or your best welder for penetration, consistency, and cleanliness, tells you more in 20 minutes than any other step in the process.

AI surfaces the evidence. You review it and make the call. It doesn't pick for you, and it never should for a hire where the wrong call carries real safety and quality risk, not just a scheduling headache.

Common hiring mistakes for this role

Requiring a resume when your best welders don't have one. A lot of skilled welders learned the trade through a vocational program or years on the job, don't use LinkedIn, and apply through Indeed, a walk-in, or a call from someone already on your floor. If you require a formatted resume just to apply, you filter out people who can weld and keep the ones who are good at writing resumes instead.

Blaming "nobody wants to work" when the real issue is pay. If your shop pays below what other shops in your area are offering, no amount of better screening fixes the turnover. Welders who take the job anyway tend to leave the moment something better comes along, and a revolving door gets chalked up to a labor shortage when the actual cause is the number on the offer.

Treating certification as the whole screen. A certification confirms someone passed a specific test on a specific process and position, on a specific day. It doesn't tell you whether their current work is consistent, or whether they'll flag a problem instead of welding around it. Skip the practical test and you're hiring on paper instead of on the weld.

Skipping or rushing background checks to fill the seat faster. It's tempting to move fast when you're short a welder and a job is due, but skipping the background check or rushing it is exactly what causes a problem months later. Build the check into the process instead of treating it as optional paperwork you'll get to eventually.

Writing a posting that's vague about process and materials. A generic "welder wanted" posting pulls in applicants whose experience doesn't match what you actually need, whether that's TIG on thin stainless or stick on structural steel outdoors. Be specific about the processes, materials, and typical jobs from the first line of the post, so you're not sorting through mismatched applicants later.