The certification halves the market.
The job ad halves it again.
Your own recruiting system for refrigeration mechatronics engineers and service technicians – for manufacturers and for service operators maintaining installed systems in the field. Built inside your company, yours afterwards.
No obligation – no lock-in contract
Few segments have such a narrowly cut hiring market – and it hits manufacturers and service operators alike, whether you ship your own systems or maintain other people’s in the field. Anyone working on refrigeration systems needs certification under the German chemicals climate protection ordinance – not a nice-to-have, an access requirement. The market of eligible people is not scarce, it is countable.
On top of that comes a competition that did not exist ten years ago: the heat pump ramp-up has put plumbing and heating trades, plant builders and industrial refrigeration into direct competition for the same people. The refrigeration mechatronics engineer is now among the scarcest single occupations in the entire technical field.
In a market this size, what decides is not reach but precision – and speed. Take a week to respond and you are negotiating against a signed acceptance. So we build a system with a fixed response rhythm and a pre-selection your technical manager defines. And we hand it over instead of renting it out.
One application. Answered the same day.
A technician applies in the evening after their shift – and usually not only to you. Whoever answers first gets the interview. That is not a service promise, it is the selection mechanism of this market.
First application within 72 hours.
Then a fixed rhythm: every application answered the same day – even when the service manager is at a customer site or on holiday. The process and the templates belong to your company from day one.
- Answers in minutes, not days – evenings and weekends included
- Asks the points your service manager defined
- Ms Bauer
Good evening, your refrigeration mechatronics role – is certification a requirement?
- Blacklyne
Good evening! Having it is ideal but not mandatory – the company funds the qualification if the fundamentals are there. Do you have an electrical or building services background?
< 3 s - Ms Bauer
Plumbing and heating mechanic, four years on heat pumps, certification in progress.
- Blacklyne
Exactly the background our technical manager is after. Wednesday 14:00 works for him – shall I book it?
< 4 s
Every route. One entry point.
Careers page, ad, message, callback – all in one place, on your access and with your data. No agency inbox you have to have candidates forwarded from.
- One entry point instead of five channels and three inboxes
- All applicant data stays with you – from day one
What keeps your roles open.
The bottlenecks in this segment – and why they rarely sit in the market.
The pool is countable, not merely scarce
With an access requirement like mandatory certification, reach helps little. What matters is reaching the few right people – specifically the people who are not searching among them who are not currently searching and therefore read no job ad.
You are bidding against the heat pump boom
A business that was never your competitor is now courting your refrigeration technician. That shifts salary bands and willingness to move at the same time – making retention as important as recruiting.
Career changers fail on structure, not on will
A plumbing and heating mechanic with electrical experience could be there in twelve months. But almost no company has described a route you could read on a careers page. That closes off an entire inflow – not for lack of candidates, for lack of description.
A three-day response time is a rejection in this market
Anyone applying with certification has several options. The company that answers the same day gets the interview. That is not a service promise, it is the selection mechanism of this market.
6 percent are searching. a third would be open to an offer.
According to the EY job study 2025, a quarter of employees are actively looking and another third are open to an offer without searching. A job ad addresses the first 6 percent. The rest are reachable, just not where you advertise.
Every application is answered the same day.
Here is what changes for you.
What ends
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Recruiter fee per head -
Open-ended retainer -
Staffing mark-up -
Accounts and applicant data with a provider
Outreach instead of advertising
Regional access to the passively open – run on your accounts. Audiences and creative belong to you from day one, together with the knowledge of what worked.
A documented route for career changers
If you want to develop plumbing and heating mechanics into refrigeration technicians, that route belongs on the careers page – with duration, milestones and who carries the cost. It opens an inflow your competitors do not advertise.
Response rhythm as part of the system
First application within 72 hours, then every application answered the same day – with message templates in place so it works even when the technical manager is on site.
Your system, your data
Careers page, ad accounts, questionnaire, applicant data and handover stay with you. With a pool this small, the candidate base you build is worth the build on its own.
4 steps.
Live from day one.
First we check whether the role can be filled in your region. Then it goes out – advert, application route and campaign from us, under your name. First applications within 72 hours.
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Feasibility check
Can the role be filled in your region, and is your area still open? We put in writing what “the right fit” means technically. We decline roles that cannot be filled – even when that means one engagement less.
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We launch it
Role profile with travel radius and on-call, careers page on your domain, a 90-second application path, campaign in your region. We build it and switch it live – you approve it once. Every account runs under your name.
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Applications
Then a fixed rhythm: every application answered the same day, pre-screened on your service manager’s criteria. You run interviews instead of sorting. If a committed role stays open, we keep working – at no further cost.
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It stays live
Accounts, audiences, templates and applicant data keep running under your name – live, not a kit to learn. The next role takes minutes: type the title, tick the box, live. If you would rather hand it back to us, you can – but you do not have to.
Honest answers.
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01 We do not build systems, we service other people’s. Does the system still fit?
Yes. What matters is not whether you built the plant but that you look after an installed base and hire technicians for it regularly. Refrigeration, HVAC and building-technology service runs on the same build as the manufacturer. -
02 Can recruiting grow a market that does not exist?
No. If a role cannot be filled in your region, we say so in advance and decline it. What a system delivers is access to the people who are not searching who exist but are not visible – not the invention of people. -
03 We want to develop career changers. Is that part of the system?
Yes, if you can carry the training internally. We describe the route on the careers page and in the role profile so a plumbing and heating mechanic feels addressed. The training itself is yours, not ours – we say that plainly rather than blurring it. -
04 How do we keep people afterwards?
Retention is not part of the recruiting system, and we do not claim it is. What the system contributes: it promises nothing the company does not deliver – and that is exactly where most first-year hires fail. -
05 Is there a price on the website?
No, deliberately. What the build costs depends on the number of roles and territories. We settle that in the first call against your numbers.
Articles for this industry
Practical guides and levers – straight from the field
One company per specialisation and area. Every slot is currently taken.
Put your name down. As soon as a slot opens in your area we will come back to you – with an assessment, not a pitch.
What happens next
- You leave a postcode and a website. That is all we need to place your catchment area.
- We come back as soon as we can – and we decline if your area is taken or the role cannot be filled. Honestly, before you lose time.
- If it fits, we run your area together: how many suitable technicians work within range, and what the build would cost you – including when we advise against it.