Consider one opening, a full-time service technician at a small firm, advertised twice. The first version ran for six weeks and produced a large number of applications, nine interviews and one hire who left in month three. The second version, rewritten and rerun, produced fewer applications and filled the role in eleven days.
The work was identical. The difference was entirely in what the advert asked the reader to do.
What a job advert is actually for
The mechanism worth understanding is that screening cost does not disappear. It moves.
An advert that leaves out the pay, the hours and the physical requirements will be read by more people, because more people can imagine themselves in it. Every one of those imaginings has to be corrected later, one at a time, by a person on the phone. The advert saved a paragraph and bought fifty phone calls.
An advert that states those things plainly is read by fewer people, and the ones who apply have already selected themselves against the constraints. The pile is smaller and the density of usable candidates in it is far higher, which is the only measure that matters.
The lines that did the damage
"Competitive salary." This is the expensive one. Applicants read it as an unwillingness to say, and the strongest candidates, who have options and no patience, skip the posting entirely. Everyone who does apply has to be asked about pay individually, and roughly a third of them are somewhere the role cannot reach.
"Fast-paced environment." Describes nearly every workplace and therefore describes none. It also reads, to anyone who has been in a badly run shop, as a warning about understaffing.
"Must be a team player with a positive attitude." Nobody has ever excluded themselves on this basis. A requirement that cannot filter is decoration.
"Some heavy lifting may be required." Vague in a way that costs both sides. A candidate with a bad back cannot tell whether the job is possible, and the employer finds out in week two.
The lines that replaced them
The pay range, stated. A stated range, with what moves someone through it, changes who applies more than any other single edit. Several states now require the range in the posting anyway, and the ones that do not are heading in the same direction.
The schedule, exactly. Which days, which hours, how much notice of changes, whether there is an on-call rotation and how often it comes around. This is the detail that decides whether a job fits a life, and it is the most common reason a good hire leaves in month three.
The physical and license requirements, specifically. Lifting fifty pounds repeatedly, ladders to the second story, a valid driver's license with a clean record because you will be in a company vehicle. Precise requirements let people rule themselves out honestly.
What the first month looks like. Who trains them, what they will be doing alone by week four, what tools are provided and what they are expected to own. Applicants for skilled work are trying to judge whether the employer is organized, and this paragraph answers it.
Set the two against each other
| Vague version | Specific version | |
|---|---|---|
| Applications | Many | Fewer |
| Phone screens needed | One per applicant | Few, mostly confirming |
| Ruled out on pay | Late, after time spent | Before applying |
| Surprises after hiring | Schedule, lifting, on-call | Rare |
The objection, and what is behind it
Employers resist publishing a range for two reasons, and they are worth separating.
The first is that current staff will see it. That is not a problem the advert created. If the range you would offer a stranger is above what a loyal employee earns for the same work, the posting has revealed something that was already true and would have surfaced eventually in a worse way.
The second is a worry about losing negotiating room. In practice a range does the negotiating for you, because it sets the ceiling before anyone gets attached, and candidates arriving at an interview with the number already accepted are easier to hire, not harder.
What the second version deliberately left out
It got shorter, not longer. Gone were the paragraph about the company's history, the list of eleven duties, and the sentence about being an equal opportunity employer expanded into three lines of prose rather than one.
Also gone was the phrase asking for salary expectations. Once a range is published, asking the applicant to name a number first serves no purpose beyond making them uncomfortable, and it is prohibited in a growing number of states in one form or another.
The posting ended up around two hundred and fifty words. Short postings are read to the end, and the end is where the instruction to apply lives.
What to keep from this
Write the advert as though the reader has three others open and thirty seconds. Give them the four facts that decide whether to keep reading: what the work is, what it pays, when it happens, and what the body has to be able to do.
Everything else in a posting is preference. Those four are the filter, and an advert that includes them is doing the first round of interviews for free, before anyone has picked up a phone.