Period
to 23 November 2017

The following table provides summary statistics for permanent job vacancies advertised in Cardiff with a requirement for JSON skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited JSON over the 6 months to 23 November 2017 with a comparison to the same period in the previous 2 years.

JSON
South Wales > Cardiff
6 months to
23 Nov 2017
Same period 2016 Same period 2015
Rank 65 82 85
Rank change year-on-year +17 +3 -4
Permanent jobs citing JSON 14 29 28
As % of all permanent IT jobs advertised in Cardiff 1.71% 2.10% 1.80%
As % of the Libraries, Frameworks & Software Standards category 4.59% 5.34% 4.67%
Number of salaries quoted 13 29 24
Cardiff median annual salary £32,500 £40,000 £30,000
Median salary % change year-on-year -18.75% +33.33% -9.47%
10th Percentile £28,281 £31,250 £25,550
90th Percentile £48,800 £52,500 £45,000
South Wales median annual salary £37,500 £40,000 £37,500
% change year-on-year -6.25% +6.67% +23.30%

JSON is in the Software Libraries and Frameworks category. The following table is for comparison with the above and provides summary statistics for all permanent job vacancies advertised in Cardiff with a requirement for technical specification, industry standards, software libraries and framework skills.

All Software Libraries and Frameworks
Cardiff
Permanent vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 305 543 599
As % of all permanent IT jobs advertised in Cardiff 37.33% 39.38% 38.42%
Number of salaries quoted 277 504 502
Cardiff median annual salary £40,000 £35,000 £35,000
Median salary % change year-on-year +14.29% - -
10th Percentile £24,250 £23,000 £23,825
90th Percentile £55,000 £53,750 £51,125
South Wales median annual salary £40,000 £35,000 £35,000
% change year-on-year +14.29% - -

JSON
Job Vacancy Trend in Cardiff

Job postings citing JSON as a percentage of all IT jobs advertised in Cardiff.

Job vacancy trend for JSON in Cardiff

JSON
Salary Trend in Cardiff

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing JSON in Cardiff.

Salary trend for JSON in Cardiff

JSON
Salary Histogram in Cardiff

The salary distribution of IT jobs citing JSON in Cardiff over the 6 months to 23 November 2017.

Salary histogram for JSON in Cardiff

For the 6 months to 23 November 2017, IT jobs citing JSON also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Cardiff region with a requirement for JSON.

1 10 (71.43%) HTML
2 8 (57.14%) JavaScript
2 8 (57.14%) CSS
2 8 (57.14%) XML
2 8 (57.14%) Agile Software Development
3 7 (50.00%) PHP
4 6 (42.86%) Java
4 6 (42.86%) OO
4 6 (42.86%) Apache
4 6 (42.86%) Ajax
4 6 (42.86%) Spring
4 6 (42.86%) jQuery
4 6 (42.86%) HTML5
4 6 (42.86%) CSS3
5 5 (35.71%) Scrum
6 4 (28.57%) MVC
6 4 (28.57%) Tomcat
6 4 (28.57%) SQL
6 4 (28.57%) OOP
6 4 (28.57%) SOAP
6 4 (28.57%) Hibernate
6 4 (28.57%) TDD
6 4 (28.57%) Web Design
6 4 (28.57%) Subversion
6 4 (28.57%) Test Automation
6 4 (28.57%) Responsive Web Design
6 4 (28.57%) SDLC
7 3 (21.43%) SQL Server
7 3 (21.43%) MySQL
8 2 (14.29%) J2EE

JSON
Co-occurring IT Skills in Cardiff by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 6 (42.86%) Apache
2 4 (28.57%) Tomcat
3 2 (14.29%) CMS
3 2 (14.29%) Elasticsearch
3 2 (14.29%) IIS
3 2 (14.29%) WordPress
Cloud Services
1 2 (14.29%) GitHub
Database & Business Intelligence
1 3 (21.43%) MySQL
1 3 (21.43%) SQL Server
2 2 (14.29%) MongoDB
3 1 (7.14%) Big Data
3 1 (7.14%) Data Warehouse
3 1 (7.14%) HPCC
3 1 (7.14%) Relational Database
Development Applications
1 4 (28.57%) Subversion
2 2 (14.29%) Bugzilla
2 2 (14.29%) Eclipse
2 2 (14.29%) GitLab
2 2 (14.29%) JMeter
2 2 (14.29%) NetBeans
2 2 (14.29%) Selenium
2 2 (14.29%) Team Foundation Server
2 2 (14.29%) Visual Studio
2 2 (14.29%) VSS/SourceSafe
3 1 (7.14%) JIRA
General
1 2 (14.29%) Finance
2 1 (7.14%) Marketing
2 1 (7.14%) Retail
Job Titles
1 13 (92.86%) Developer
2 5 (35.71%) Java Developer
3 4 (28.57%) PHP Developer
4 2 (14.29%) Front End Developer (Client-Side Developer)
4 2 (14.29%) J2EE Developer
4 2 (14.29%) Java Web Developer
4 2 (14.29%) Java/J2EE Developer
4 2 (14.29%) Web Developer
5 1 (7.14%) Applications Developer
5 1 (7.14%) HTML Developer
5 1 (7.14%) Java Applications Developer
5 1 (7.14%) JavaScript Developer
5 1 (7.14%) Junior
5 1 (7.14%) Junior Developer
5 1 (7.14%) Junior Front End Developer (Client-Side Developer)
5 1 (7.14%) Senior Developer
5 1 (7.14%) Senior J2EE Developer
5 1 (7.14%) Senior Java Developer
5 1 (7.14%) Senior Java/J2EE Developer
5 1 (7.14%) Web Applications Developer
Libraries, Frameworks & Software Standards
1 10 (71.43%) HTML
2 8 (57.14%) CSS
2 8 (57.14%) XML
3 6 (42.86%) Ajax
3 6 (42.86%) CSS3
3 6 (42.86%) HTML5
3 6 (42.86%) jQuery
3 6 (42.86%) Spring
4 4 (28.57%) Hibernate
4 4 (28.57%) SOAP
5 2 (14.29%) J2EE
5 2 (14.29%) Kafka
5 2 (14.29%) Mustache
5 2 (14.29%) REST
5 2 (14.29%) RESTful
5 2 (14.29%) Twitter Bootstrap
5 2 (14.29%) Web Services
6 1 (7.14%) Smarty
Miscellaneous
1 2 (14.29%) Fintech
2 1 (7.14%) Data Structures
2 1 (7.14%) Social Media
Operating Systems
1 1 (7.14%) Apple iOS
Processes & Methodologies
1 8 (57.14%) Agile Software Development
2 6 (42.86%) OO
3 5 (35.71%) Scrum
4 4 (28.57%) MVC
4 4 (28.57%) OOP
4 4 (28.57%) Responsive Web Design
4 4 (28.57%) SDLC
4 4 (28.57%) TDD
4 4 (28.57%) Test Automation
4 4 (28.57%) Web Design
5 2 (14.29%) Defect Management
5 2 (14.29%) DSDM
5 2 (14.29%) Front End Development
5 2 (14.29%) Migration
5 2 (14.29%) Open Source
5 2 (14.29%) Software Delivery
5 2 (14.29%) Test Strategy
5 2 (14.29%) Waterfall
5 2 (14.29%) Web Development
5 2 (14.29%) Workflow
Programming Languages
1 8 (57.14%) JavaScript
2 7 (50.00%) PHP
3 6 (42.86%) Java
4 4 (28.57%) SQL
5 2 (14.29%) Go
6 1 (7.14%) Apple Swift
6 1 (7.14%) Objective-C
Quality Assurance & Compliance
1 1 (7.14%) Data Quality
1 1 (7.14%) QA
Vendors
1 2 (14.29%) Twitter
2 1 (7.14%) Oracle