Period
to 21 August 2019

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 21 August 2019 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
21 Aug 2019
Same period 2018 Same period 2017
Rank 40 61 43
Rank change year-on-year +21 -18 +10
Contract jobs citing JSON 24 14 19
As % of all contract IT jobs advertised in Cardiff 3.70% 1.81% 3.02%
As % of the Libraries, Frameworks & Software Standards category 10.53% 5.13% 9.60%
Number of daily rates quoted 18 12 13
Cardiff median daily rate £415 £413 £425
Median daily rate % change year-on-year +0.61% -2.94% +16.44%
10th Percentile £311 £284 £300
90th Percentile £625 £473 £479
South Wales median daily rate £415 £400 £425
% change year-on-year +3.75% -5.88% +14.86%
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 228 273 198
As % of all contract IT jobs advertised in Cardiff 35.13% 35.27% 31.48%
Number of daily rates quoted 176 210 155
Cardiff median daily rate £413 £413 £370
Median daily rate % change year-on-year - +11.49% -1.33%
10th Percentile £267 £293 £234
90th Percentile £604 £538 £478
South Wales median daily rate £425 £410 £375
% change year-on-year +3.66% +9.33% -0.66%
Number of hourly rates quoted 4 0 2
Cardiff median hourly rate £35.25 - £19.71
10th Percentile £31.55 - £16.74
90th Percentile £38.93 - £23.61
South Wales median hourly rate £35.75 - £18.25

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

JSON
Contractor Daily Rate Histogram in Cardiff

The daily rate distribution of IT jobs citing JSON in Cardiff over the 6 months to 21 August 2019.

Contractor daily rate histogram for JSON in Cardiff

For the 6 months to 21 August 2019, 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 21 (87.50%) Java
1 21 (87.50%) SOAP
1 21 (87.50%) REST
2 14 (58.33%) Agile Software Development
3 11 (45.83%) AngularJS
3 11 (45.83%) XML
3 11 (45.83%) CSS
3 11 (45.83%) Finance
4 10 (41.67%) Scrum
4 10 (41.67%) HTML
4 10 (41.67%) Node.js
4 10 (41.67%) CSS3
4 10 (41.67%) Git (software)
4 10 (41.67%) HTML5
4 10 (41.67%) Front End Development
4 10 (41.67%) npm
5 8 (33.33%) Confluence
5 8 (33.33%) Spring
5 8 (33.33%) JIRA
5 8 (33.33%) Web Services
6 7 (29.17%) Hibernate
6 7 (29.17%) JUnit
6 7 (29.17%) Web Development
6 7 (29.17%) Unit Testing
6 7 (29.17%) Maven
6 7 (29.17%) MVC
6 7 (29.17%) JPA
6 7 (29.17%) LESS
6 7 (29.17%) Creative Thinking
6 7 (29.17%) Apache Camel

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 8 (33.33%) Confluence
2 6 (25.00%) WebSphere
3 3 (12.50%) Anypoint
4 1 (4.17%) ColdFusion
4 1 (4.17%) Tomcat
Cloud Services
1 10 (41.67%) npm
Database & Business Intelligence
1 4 (16.67%) SQL Server
2 1 (4.17%) SQL Server 2012
Development Applications
1 10 (41.67%) Git (software)
2 8 (33.33%) JIRA
3 7 (29.17%) JUnit
3 7 (29.17%) Maven
4 1 (4.17%) Visual Studio
General
1 11 (45.83%) Finance
2 3 (12.50%) Back Office
3 1 (4.17%) Banking
3 1 (4.17%) Marketing
Job Titles
1 22 (91.67%) Developer
2 10 (41.67%) Front End Developer (Client-Side Developer)
3 8 (33.33%) Java Developer
4 5 (20.83%) Front End Web Developer (Client-Side Developer)
4 5 (20.83%) Web Developer
5 3 (12.50%) Angular Developer
6 2 (8.33%) HTML CSS Developer
6 2 (8.33%) HTML Developer
6 2 (8.33%) MuleSoft Developer
6 2 (8.33%) React Developer
7 1 (4.17%) .NET Developer
7 1 (4.17%) Architect
7 1 (4.17%) ColdFusion Developer
7 1 (4.17%) Senior Developer
7 1 (4.17%) Software Developer
7 1 (4.17%) Solutions Architect
Libraries, Frameworks & Software Standards
1 21 (87.50%) REST
1 21 (87.50%) SOAP
2 11 (45.83%) AngularJS
2 11 (45.83%) CSS
2 11 (45.83%) XML
3 10 (41.67%) CSS3
3 10 (41.67%) HTML
3 10 (41.67%) HTML5
3 10 (41.67%) Node.js
4 8 (33.33%) Spring
4 8 (33.33%) Web Services
5 7 (29.17%) Apache Camel
5 7 (29.17%) Hibernate
5 7 (29.17%) JPA
5 7 (29.17%) LESS
6 4 (16.67%) Angular 2
7 3 (12.50%) .NET
8 2 (8.33%) React
9 1 (4.17%) ASP.NET
9 1 (4.17%) Spring Boot
Miscellaneous
1 3 (12.50%) Mobile App
2 1 (4.17%) Enterprise Software
2 1 (4.17%) Self-Motivation
Processes & Methodologies
1 14 (58.33%) Agile Software Development
2 10 (41.67%) Front End Development
2 10 (41.67%) Scrum
3 7 (29.17%) Creative Thinking
3 7 (29.17%) MVC
3 7 (29.17%) Unit Testing
3 7 (29.17%) Web Development
4 6 (25.00%) Continuous Improvement
4 6 (25.00%) Product Roadmap
4 6 (25.00%) Time Management
5 3 (12.50%) Configuration Management
6 1 (4.17%) Architectural Design
6 1 (4.17%) B2B
6 1 (4.17%) BDD
6 1 (4.17%) Data Modelling
6 1 (4.17%) OO
6 1 (4.17%) Project Roadmap
6 1 (4.17%) Software Engineering
6 1 (4.17%) TDD
6 1 (4.17%) Test Automation
Programming Languages
1 21 (87.50%) Java
2 7 (29.17%) Java 8
3 5 (20.83%) C#
4 3 (12.50%) JavaScript
5 1 (4.17%) SQL
5 1 (4.17%) VB.NET
Quality Assurance & Compliance
1 1 (4.17%) QA
Vendors
1 5 (20.83%) IBM
2 3 (12.50%) MuleSoft