A must-see resource for journalists reporting on employment.

Understanding the job market often depends on being able to access strong data. For journalists investigating current trends, Adzuna offers a unique repository of salary and vacancy data for the UK.

To find out more about the data and how it can be leveraged by journalists, we spoke to James Neave, Head of Data Science, Dimosthenis Kyriakidis, Software Engineer, and Becky Harkins, Head of PR.

DDJ: What kinds of data does the project offer journalists?

Adzuna team: As well as average salary trends and number of available vacancies over time for different regions, cities and job sectors, the tool offers insights into the most prolific recruiters, highest paying jobs and which areas are adding new jobs fastest.

All in all, it is a goldmine of interesting job market facts for journalists, economists or interested professionals.

What formats are the datasets available in?

On the website the data is presented as tables and charts. If charts are required we provide an option for the user to download the image in one of 4 formats (PNG, SVG. JPEG and PDF).

If raw data is required then the API allows a range of queries to be sent programmatically. The results from the API are available in one of 3 formats: HTML, JSON and JSONP.

Where do the datasets come from and how were they extracted?

The stats are taken from our comprehensive database of aggregated job adverts in the UK. This is over 95% of all online ads, and is collected on a real-time basis from many hundreds of different sources. Salaries provided are therefore advertised rather than 'actual'.

Every month, we query thousands of the most used terms for job titles, companies and locations. The most important data we collect for these queries are the number of vacancies available and the advertised salaries of those vacancies. 

After processing the data we store it  in our database so that they are accessible whenever we want, effectively storing a snapshot of the situation during that specific month for a specific term. Those stats are used for multiple purposes in our business with the latest of those being Salary Stats, which fetches information for the last year and creates a well structured, meaningful report for anyone who wants to be informed on the trends and changes occurring in a given sector or location.

While we currently only have Salary Stats pages for the UK, we collect this data for all of the 11 countries we operate in.

How often is data updated and what checks do you undertake to ensure that its accurate?

We gather the data for each country that Adzuna operates in at least once per month and store it in our databases. After anything is stored there it's never updated or rewritten as it represents the metrics for that specific period.

There are various measures and checks that we undertake in order to ensure that the data we gather and display are accurate. A few of those are:

- Salary normalization (e.g. converting monthly/daily rates to annual)
- Minimum sampling threshold (i.e. making sure there is enough data to be statistically significant)
- Volatility checking (an addition check related to minimum sample size)
- Removal of erroneous values

Your data has been used extensively by the press. What are some of the most innovative or powerful uses you've seen?

We've had hundreds of press mentions over the years featuring our real-time job market data, and seen some really exciting uses of our information - one of our favourites has to the most lucrative jobs for graduates and the most in-demand skills in Britain. Although, if we are honest, we have a real soft spot for these Christmas jobs stories, too!

If a journalist is working on a story and they think our data could help them we’re always happy to assist - they can contact us here.

Aside from raw data, what other resources does the project offer for journalists?

The tool boasts great graphics, interesting highlights and a nifty map function that shows exactly where the most vacancies are in your given area - all very handy for a job hunter into today's incredibly job search environment world.

Check out Adzuna here.