Key takeaways
- Job postings are spread across big boards, company career pages, sector boards, regional boards and public job portals.
- Company career pages often have the vacancy first, and some vacancies never leave them.
- Checking regularly matters: early applicants are usually read while the recruiter is still actively reviewing.
- Beware of "80% of jobs are hidden" claims; there is no solid source. Wider searching is still worth it.
The map of job sources
Vacancies are spread across five kinds of sources, and each one shows a different slice of the market.
- 01Big job boards
LinkedIn, Indeed, StepStone and similar. Wide reach, lots of competition, many reposts from agencies.
- 02Company career pages
The employer's own site, often run on an ATS such as Workday, Greenhouse or Personio. Usually the most accurate and up to date.
- 03Sector boards
Boards for healthcare, logistics, engineering, public sector and so on. Fewer ads, far more relevant ones.
- 04Regional boards and papers
Local employers who never post nationally, especially in trades, care and retail.
- 05Public job portals
In Germany the Bundesagentur für Arbeit's Jobsuche; across the EU the EURES portal for jobs in other member states.
Is there really a "hidden job market"?
Some roles are filled through referrals or internal moves before they are posted, but the popular "70-80% of jobs are never advertised" figure has no reliable source.
80% of jobs are never advertised.
This is repeated in countless articles, and none of them points to a study that measured it. What is true: referrals and internal candidates fill some roles quietly, and roles posted only on company career pages are easy to miss.
The practical answer is the same either way. Tell people you are looking, and search more places than one.
Why timing matters
Applying within the first few days of a posting usually helps, because recruiters review while applications arrive and often start interviewing before the ad closes.
Many employers review on a rolling basis. By the time an ad has been up for three weeks, the shortlist may already exist. That is why checking once a week is not enough in busy fields, and why alerts beat browsing.
Where CareerSide fits
CareerSide watches 20+ job boards, aggregators and company career pages for you, as often as every four hours, and sends only the vacancies that fit your CV.
Common questions
Which job sites should I use?
Is it better to apply on the company website or on the job board?
How often should I check for new jobs?
Sources
Written by the CareerSide team. Published , last updated .