Data sources
Where do jobs, places and exchange rates come from?
You are searching as your Data Scientist profile and looking at a London posting from Spotify. Before you trust it, you want to know where Portage got it, how fresh it is, and where the city, the pay estimate and the visa rules come from. Portage reads only published, official or employer sources, and shows you which one each fact came from.
Jobs
| Source | How Portage reads it | How often |
|---|---|---|
| Employers' job boards on Greenhouse, Lever, Ashby, Workable, SmartRecruiters, Personio, Teamtailor and Recruitee | The board's public feed of open postings | Every hour |
| Employers you follow | The employer's board is added to the list above | Every hour |
| Jobs you add or paste | What you entered, visible only in your workspace | When you add it |
Portage maps only the fields a feed states. A posting that gives no salary period, for example, gets none; Portage does not guess one.
To see where one job came from:
- Open Jobs and select the posting.
- Select the Sources tab.

Each row is one place the job is listed, with how Portage reads it, when Portage first and last saw it there, and Open to view the original. A job listed on several boards is shown once, with a row for each. Insights counts these under Jobs listed on more than one source.
Places
Portage places a job using GeoNames, a free gazetteer of every city with more than 1,000 people. It is used when a posting names a city but no country, or a country with no city of that name. Portage reloads it once a month.
Exchange rates
Pay estimates use the European Central Bank's daily reference rates, the only exchange rates Portage uses. Portage reads them once a day. Under Salary currency in the Jobs filters, the note gives the date of the rates in use, such as Converted at ECB rates of 19 Oct. Eligibility checks never convert currencies.
Immigration rules and sponsor registers
| Source | How often |
|---|---|
| The official government pages each visa rule quotes | Re-read weekly |
| The UK and Dutch official registers of licensed sponsors | Re-read weekly |
Each rule links to its page, and each country page links to its register and gives the date Portage last read it.
Next
- Pay estimates for how ECB rates turn pay into a yearly figure
- When a rule changes for what the weekly re-read does
- Add a job or follow an employer to add a source of your own