A technology is a better filter than a job title
Technology recruiters know that titles mean little. A data engineer at one company is a platform engineer at the next, and the advert for either might never use the words a title search looks for. What holds steady is the stack. A company that runs the technology you recruit for employs the people you place, and will need more of them.
There are two different facts hiding in that sentence, and most lists blur them. A company that uses the technology is a long-term account: the skill is in the building and the need recurs. A company that is hiring for it has a need with a date on it. The first is a reason to build a relationship. The second is a reason to call this week. A company showing both has committed to the technology and is growing the team around it, which is the best position a specialist recruiter can find an account in.
This play builds the two lists separately, then joins them.
What you get back
One table, ranked: company, domain, a mark for using, hiring or both, and the evidence behind the mark. For a detection, the dates it was first and last seen. For hiring, the adverts that asked for the skill, with title, location and link. For the companies that qualified, the team leader with title and verified work email, and a draft opener.
Above it, the counts: how many companies use it, how many are hiring for it, and how many do both.
Variations worth knowing
Recent adopters only. Ask for detections first seen since a date. A company that has just taken on a technology often does not have the people to run it yet.
Check one account. A single company's stack can be looked up by its domain, which is the quick way to qualify a prospect before a call.
Turn it round for sourcing. Companies that have used a technology for years are where the experienced people work. Source engineers on proof of work is the candidate-side play.
Add the rest of the market. Find every company hiring in your market sweeps the job boards by title and region, for roles the stack filter misses.
Where this goes wrong
A loose technology name. A common word matches unrelated products. The label is confirmed against each source's own catalogue before any paid search runs.
Treating a detection as a vacancy. Use does not mean a role is open. Writing to a company about hiring you have only inferred is how a specialist ends up sounding like a mailshot.
Popular technologies. A widely used technology returns a very large list, and every row returned is charged. Narrow by country and date before pulling, and cap the run.
Adverts that list everything. One mention among a dozen nice-to-haves is weak evidence. Several adverts from one company asking for the same skill is strong.
