The table below provides summary statistics for permanent job vacancies advertised in Hertfordshire requiring JSON skills. It includes a benchmarking guide to the annual salaries offered in vacancies that cited JSON over the 6 months leading up to 19 May 2025, comparing them to the same period in the previous two years.
6 months to 19 May 2025
Same period 2024
Same period 2023
Rank
80
111
114
Rank change year-on-year
+31
+3
-23
Permanent jobs citing JSON
2
7
17
As % of all permanent jobs advertised in Hertfordshire
JSON falls under the Software Libraries and Frameworks category. For comparison with the information above, the following table provides summary statistics for all permanent job vacancies requiring technical specification, industry standards, software libraries and framework skills in Hertfordshire.
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills
143
319
346
As % of all permanent jobs advertised in Hertfordshire
17.27%
15.97%
19.36%
Number of salaries quoted
80
290
169
10th Percentile
£32,500
£35,000
£44,900
25th Percentile
£46,875
£45,063
£57,500
Median annual salary (50th Percentile)
£62,000
£57,500
£67,500
Median % change year-on-year
+7.83%
-14.81%
+17.39%
75th Percentile
£80,000
£71,250
£76,250
90th Percentile
£87,500
£80,000
£87,500
East of England median annual salary
£62,500
£55,000
£60,000
% change year-on-year
+13.64%
-8.33%
+9.09%
JSON Job Vacancy Trend in Hertfordshire
Job postings citing JSON as a proportion of all IT jobs advertised in Hertfordshire.
JSON Salary Trend in Hertfordshire
3-month moving average salary quoted in jobs citing JSON in Hertfordshire.
JSON Salary Histogram in Hertfordshire
Salary distribution for jobs citing JSON in Hertfordshire over the 6 months to 19 May 2025.
JSON Job Locations in Hertfordshire
The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing JSON within the Hertfordshire region over the 6 months to 19 May 2025.
The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.
JSON Top 30 Co-occurring Skills and Capabilities in Hertfordshire
For the 6 months to 19 May 2025, job vacancies citing JSON also mentioned the following skills and capabilities in order of popularity.
The figures indicate the absolute number co-occurrences and as a proportion of all permanent job ads across the Hertfordshire region with a requirement for JSON.
JSON Co-occurring Skills and Capabilities in Hertfordshire by Category
The follow tables expand on the table above by listing co-occurrences grouped by category.
The same employment type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:
