JSON Job Trends in Cardiff

JSON
South Wales > Cardiff

The table below provides summary statistics and salary benchmarking for jobs advertised in Cardiff citing JSON skills. It covers permanent job vacancies from the 6 months leading up to 9 November 2026, with comparisons to the same periods in the previous two years.

	6 months to 9 Nov 2026	Same period 2025	Same period 2024
Rank	66	-	29
Rank change year-on-year	-	-	+14
Permanent jobs citing JSON	6	0	28
As % of all permanent jobs in Cardiff	0.58%	-	5.25%
As % of the Libraries, Frameworks & Software Standards category	3.92%	-	17.28%
Number of salaries quoted	1	0	21
10^th Percentile	-	-	-
25^th Percentile	-	-	£23,750
Median annual salary (50^th Percentile)	£75,000	-	£27,500
Median % change year-on-year	-	-	+19.57%
75^th Percentile	-	-	£31,250
90^th Percentile	-	-	£51,165
South Wales median annual salary	£65,000	-	£27,500
% change year-on-year	-	-	-19.12%

All Software Libraries and Frameworks
Cardiff

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 citing technical specification, industry standards, software libraries and framework skills in Cardiff.

	6 months to 9 Nov 2026	Same period 2025	Same period 2024
Permanent vacancies citing technical specification, industry standards, software libraries and framework skills	153	41	162
As % of all permanent jobs advertised in Cardiff	14.83%	12.62%	30.39%
Number of salaries quoted	124	38	122
10^th Percentile	£47,500	£48,125	£23,750
25^th Percentile	£52,500	£53,750	£31,250
Median annual salary (50^th Percentile)	£61,250	£65,000	£47,307
Median % change year-on-year	-5.77%	+37.40%	-13.99%
75^th Percentile	£73,750	£78,670	£64,688
90^th Percentile	£75,000	£80,000	£77,500
South Wales median annual salary	£60,000	£60,000	£50,000
% change year-on-year	-	+20.00%	-9.09%

JSON Job Vacancy Trend in Cardiff

Historical trend showing the proportion of permanent IT job postings citing JSON relative to all permanent IT jobs advertised in Cardiff.

JSON Salary Trend in Cardiff

Salary distribution trend for jobs in Cardiff citing JSON.

JSON Top 30 Co-Occurring Skills & Capabilities in Cardiff

For the 6 months to 9 November 2026, job vacancies citing JSON also mentioned the following skills and capabilities in order of popularity. The figures indicate the absolute number of co-occurrences and as a proportion of all permanent job ads across the Cardiff region citing JSON.

Rank	Skill	Share	Job Ads
1	Agile	100.0%	6
1	Git	100.0%	6
3	Ajax	83.3%	5
3	CSS	83.3%	5
3	HTML	83.3%	5
3	Intranet	83.3%	5
3	JavaScript	83.3%	5
3	jQuery	83.3%	5
3	OO	83.3%	5
3	OOP	83.3%	5
3	PHP	83.3%	5
3	Prototyping	83.3%	5
3	Relational Database	83.3%	5
3	Responsive Web Design	83.3%	5
3	Waterfall	83.3%	5
3	Web Design	83.3%	5
3	Web Development	83.3%	5
3	XML	83.3%	5
19	Docker	50.0%	3
20	Apache	33.3%	2
20	Bower	33.3%	2
20	Computer Science	33.3%	2
20	Degree	33.3%	2
20	Jenkins	33.3%	2
20	JIRA	33.3%	2
20	LESS	33.3%	2
20	Linux	33.3%	2
20	Master's Degree	33.3%	2
20	MVC	33.3%	2
20	npm	33.3%	2

JSON Co-Occurring Skills & Capabilities in Cardiff by Category

The table below expands on the one above by listing co-occurrences one category at a time. It covers the same employment type, locality and period, with up to 20 co-occurrences in each category.

Libraries, Frameworks & Software Standards

Rank	Skill	Share	Job Ads
1	Ajax	83.3%	5
1	CSS	83.3%	5
1	HTML	83.3%	5
1	jQuery	83.3%	5
1	XML	83.3%	5
6	LESS	33.3%	2
6	React	33.3%	2
6	RESTful	33.3%	2
6	Sass	33.3%	2
6	SOAP	33.3%	2
6	Web Services	33.3%	2
12	Pandas	16.7%	1
12	pydantic	16.7%	1
12	Terraform	16.7%	1