How to hire a commercial diver

Hiring a commercial diver is less about finding someone with a diving certificate and more about verifying whether they can safely perform the specific underwater work you need.

Before hiring, check their commercial diving training, current dive medical, relevant logged experience, diving mode, task-specific qualifications, and emergency training. You also need to decide whether you need an individual diver or a full-service diving contractor.

This guide covers what to verify, where to find qualified commercial divers, what hiring can cost, and how to assess their practical judgment before putting them on a job.

TL;DR

• Verify the basics first: commercial diving training, a current dive medical, CPR/first aid, and logged experience in the diving mode your job requires.
• Define the job before hiring: depth, environment, diving mode, task, equipment, and emergency requirements determine which diver is qualified.
• Use contractors for most project work: a commercial diving contractor can provide the dive team, equipment, insurance, safety procedures, and emergency support.
• Source through the trade: commercial diving schools, experienced dive supervisors, contractors, unions, and industry networks are more useful than general job boards.
• Assess judgment, not just credentials: use practical scenarios, document checks, and supervisor references to find out how a diver responds when conditions change.

What does a commercial diver actually do?

A commercial diver performs industrial work underwater: inspecting and repairing ships, bridge foundations, dams, pipelines, docks and water intakes, plus welding, cutting, non-destructive testing and salvage. The work is the job. The diving is only how they get to it. That distinction is the single most useful filter in the whole hiring process.

It matters because two candidates can both be certified divers and be useless to each other's employer. A diver whose logged hours are all in harbor hull cleaning is not the person to weld a structural repair on a bridge pier. When you write the role, lead with the task and the environment, not with the word diver. Depth range, water temperature, visibility, current, contamination, and whether the site is inland or offshore all change who is qualified.

Testlify groups this kind of work under blue collar and skilled trades, where the honest signal is what someone can do with their hands under real conditions. The same logic applies when you are hiring a welder for topside work, except that underwater, a mistake has a much shorter recovery window.

What does OSHA require before a diver works?

In the u.s., commercial diving is governed by 29 CFR 1910 subpart t. It sets requirements for dive-team qualifications, diving procedures, equipment, emergency planning, and recordkeeping.

Under 1910.410, each dive-team member must have the training or experience needed for their assigned tasks and diving mode, including emergency procedures. Team members must also have current CPR and first-aid training. Anyone exposed to hyperbaric conditions must be trained in diving physics and physiology. A designated person must be present at the dive location and responsible for the team's safety.

Before hiring, ask:

• Who is the designated person for this job?
• What experience do they have with this type of diving operation?
• Which diving mode will the team use?
• When did each team member last complete CPR and first-aid training?
• Does the team have the required training for the specific tasks?

The diving mode matters because OSHA has separate requirements for scuba and surface-supplied air operations. Confirm that the proposed mode matches the job's depth, environment, communication, air supply, and emergency requirements.

Pro tip: ask to review the safe practices manual required under 1910.420, particularly its emergency procedures. Check that it identifies the nearest available recompression chamber and the arrangements for reaching it.

Which credentials prove a diver can do the job?

Certificates prove that someone met a standard on a particular day. What you actually need to know is whether they can do your job now. The Testlify Competency-to-Evidence Matrix maps every role to the competencies that matter, then connects each competency to measurable evidence through assessments, simulations, interviews, references and structured feedback. For divers it turns a stack of laminated cards into something you can check.

The supervisor reference is the row people skip, and it is the most useful one. A client can tell you the job got done. Only the person who ran the dive can tell you whether the diver called an abort when they should have, or pushed on because the schedule was tight. In this trade, the diver who aborts is the one you want back.

The verification column is doing the real work in that table. A dive log is self-reported. Treating it as proof, rather than as a set of claims you can check with named people, is how unqualified divers get hired by careful employers.

What does hiring commercial divers cost?

For a directly employed diver, federal wage data is the anchor: median pay is 35.09 dollars an hour, or 72,990 dollars a year, according to occupational data for commercial divers. Treat that as a floor to beat rather than a rate to match, because the same figure is competing against offshore work that pays considerably more for rotation schedules.

Contract pricing is a different animal, and anyone who quotes a day rate without seeing the site is guessing. What you are actually buying looks like this.

The lowest bid deserves a specific kind of scrutiny. In a trade where the required team size is set by regulation, a price well under the others usually means somebody is missing from the boat, or the mode has been downgraded, or the mobilization is about to arrive as a change order. Ask which one it is. A good contractor will tell you plainly, because they have already priced the answer.

How should you test a diver before hiring?

A dive log tells you where someone has been. It does not tell you how they think when a plan goes sideways, and that judgment is what separates a safe diver from a certified one. Structured assessment fills that gap before you commit a day of boat time to finding out.

For diving roles, the useful signals are narrow and worth being specific about. A commercial diver skills assessment covers diving techniques and procedures, underwater tools and equipment, welding and cutting, inspection and maintenance, and emergency response. A broader diver assessment fits when the role spans several kinds of underwater work. Situational judgment questions are the ones that earn their place here: give the candidate a dive that is going wrong and see whether they stop it.

A few practical settings matter more than the test choice. Weight safety and emergency-response sections higher than the rest, because Testlify lets you set a weight from x0 to x5 per test and equal weighting is rarely right for work this risky. Use qualifier questions as a screening gate for hard requirements like a current medical. Ask for evidence with a practical or file-upload question, so candidates submit certificates and logs as part of the application rather than as an email you chase. And trigger reference checks by score threshold, so the supervisor reference happens automatically for anyone who clears the bar.

Two constraints are worth knowing up front, because this is a workforce that often applies from a phone. Testlify assessments need a Chromium desktop browser such as Chrome or Edge, and the mobile app is a capture fallback for audio and video rather than a way to sit a whole assessment.

If your applicants are phone-first, keep the assessment for a shortlist you have already spoken to. Personality tests are qualitative and carry no total score, so use them to shape an interview, never to rank divers.

AI scoring and insights help you read open-ended answers quickly, and the product says so plainly in the interface: AI scores and insights are for guidance only, and human judgment makes the final decision. For work where a wrong call is measured in minutes of air, that is the right division of labor.

Hire divers on evidence

The fastest way to improve a diving hire is to stop treating a certificate as the answer and start treating it as one input among several. Build the role around the task and the water, verify the credentials with named people, weight safety judgment above everything else, and let the evidence decide. Testlify runs the assessment and interview layer of that process and integrates with the systems you already use, so the evidence arrives before the first call rather than after the first incident. Book a demo to see how a diving assessment is built, or start with a practical approach to assessing trade skills.

Frequently asked questions (FAQs)