Period
to 13 December 2018

The following table provides summary statistics for contract job vacancies advertised in Cardiff with a requirement for JSON skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JSON over the 6 months to 13 December 2018 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

JSON
South Wales > Cardiff
6 months to
13 Dec 2018
Same period 2017 Same period 2016
Rank 61 45 32
Rank change year-on-year -16 -13 +48
Contract jobs citing JSON 18 15 27
As % of all contract IT jobs advertised in Cardiff 2.02% 2.41% 4.86%
As % of the Libraries, Frameworks & Software Standards category 5.00% 8.29% 20.00%
Number of daily rates quoted 11 9 18
Cardiff median daily rate £400 £450 £375
Median daily rate % change year-on-year -11.11% +20.00% -
10th Percentile £338 £350 £321
90th Percentile £450 £480 £439
South Wales median daily rate £400 £450 £413
% change year-on-year -11.11% +9.09% +10.00%
Number of hourly rates quoted 0 0 0
Cardiff median hourly rate - - -
South Wales median hourly rate - - -

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

All Software Libraries and Frameworks
Cardiff
Contract vacancies with a requirement for technical specification, industry standards, software libraries and framework skills 360 181 135
As % of all contract IT jobs advertised in Cardiff 40.49% 29.05% 24.32%
Number of daily rates quoted 257 129 103
Cardiff median daily rate £413 £375 £375
Median daily rate % change year-on-year +10.00% - +13.64%
10th Percentile £313 £192 £263
90th Percentile £571 £475 £513
South Wales median daily rate £418 £398 £425
% change year-on-year +5.03% -6.47% +19.72%
Number of hourly rates quoted 2 1 1
Cardiff median hourly rate £27.50 £23.14 £21.50
Median hourly rate % change year-on-year +18.84% +7.63% +43.33%
South Wales median hourly rate £24.00 £23.14 £21.50
% change year-on-year +3.69% +7.63% +34.38%

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
Contractor Daily Rate Trend in Cardiff

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing JSON in Cardiff.

Contractor daily rate trend for JSON in Cardiff

For the 6 months to 13 December 2018, IT contractor jobs citing JSON also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Cardiff region with a requirement for JSON.

1 17 (94.44%) Git (software)
2 16 (88.89%) Agile Software Development
3 15 (83.33%) SOAP
4 14 (77.78%) Java
5 9 (50.00%) HTML
5 9 (50.00%) CSS
6 8 (44.44%) Unit Testing
6 8 (44.44%) Node.js
6 8 (44.44%) REST
6 8 (44.44%) CSS3
6 8 (44.44%) LESS
6 8 (44.44%) AngularJS
6 8 (44.44%) HTML5
6 8 (44.44%) npm
7 7 (38.89%) Confluence
7 7 (38.89%) XML
7 7 (38.89%) JIRA
8 6 (33.33%) Maven
8 6 (33.33%) Unix
8 6 (33.33%) Linux
8 6 (33.33%) JBoss
8 6 (33.33%) Python
8 6 (33.33%) SOA
8 6 (33.33%) HTTP
8 6 (33.33%) WSDL
8 6 (33.33%) Ant
8 6 (33.33%) Postfix
8 6 (33.33%) Jenkins
8 6 (33.33%) Ansible
8 6 (33.33%) DevOps

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 7 (38.89%) Confluence
2 6 (33.33%) JBoss
Cloud Services
1 8 (44.44%) npm
Communications & Networking
1 6 (33.33%) HTTP
Database & Business Intelligence
1 4 (22.22%) SQL Server
Development Applications
1 17 (94.44%) Git (software)
2 7 (38.89%) JIRA
3 6 (33.33%) Ant
3 6 (33.33%) Jenkins
3 6 (33.33%) Maven
3 6 (33.33%) Sonatype Nexus
4 5 (27.78%) Subversion
General
1 4 (22.22%) Marketing
2 2 (11.11%) Banking
2 2 (11.11%) Finance
Job Titles
1 12 (66.67%) Developer
2 6 (33.33%) Angular Developer
2 6 (33.33%) Front End Developer (Client-Side Developer)
3 3 (16.67%) Build Engineer
3 3 (16.67%) DevOps Engineer
4 2 (11.11%) Deployment Engineer
5 1 (5.56%) .NET Developer
5 1 (5.56%) C# .NET Developer
5 1 (5.56%) C# Developer
5 1 (5.56%) Linux Build Engineer
5 1 (5.56%) Linux Engineer
5 1 (5.56%) Senior Developer
Libraries, Frameworks & Software Standards
1 15 (83.33%) SOAP
2 9 (50.00%) CSS
2 9 (50.00%) HTML
3 8 (44.44%) AngularJS
3 8 (44.44%) CSS3
3 8 (44.44%) HTML5
3 8 (44.44%) LESS
3 8 (44.44%) Node.js
3 8 (44.44%) REST
4 7 (38.89%) XML
5 6 (33.33%) WSDL
6 4 (22.22%) .NET
6 4 (22.22%) RESTful
7 3 (16.67%) WCF
8 1 (5.56%) jQuery
Miscellaneous
1 3 (16.67%) Self-Motivation
Operating Systems
1 6 (33.33%) Linux
1 6 (33.33%) Unix
Processes & Methodologies
1 16 (88.89%) Agile Software Development
2 8 (44.44%) Unit Testing
3 6 (33.33%) Continuous Delivery
3 6 (33.33%) DevOps
3 6 (33.33%) Front End Development
3 6 (33.33%) SOA
4 5 (27.78%) Configuration Management
5 4 (22.22%) Decision-Making
5 4 (22.22%) Scrum
6 3 (16.67%) API Design
6 3 (16.67%) API Development
6 3 (16.67%) API Integration
6 3 (16.67%) B2B
6 3 (16.67%) BDD
6 3 (16.67%) Data Modelling
6 3 (16.67%) Problem-Solving
6 3 (16.67%) Software Delivery
6 3 (16.67%) Software Engineering
6 3 (16.67%) TDD
6 3 (16.67%) Test Automation
Programming Languages
1 14 (77.78%) Java
2 6 (33.33%) Python
3 4 (22.22%) C#
4 1 (5.56%) Bash Shell
4 1 (5.56%) JavaScript
4 1 (5.56%) SQL
Quality Assurance & Compliance
1 3 (16.67%) QA
System Software
1 6 (33.33%) Postfix
Systems Management
1 6 (33.33%) Ansible
1 6 (33.33%) Rundeck