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 3 months to 24 March 2017 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.

3 months to
24 Mar 2017
Same period 2016 Same period 2015
JSON
South Wales / Cardiff
Rank 30 59 -
Rank change year-on-year +29 -  
Contract jobs citing JSON 11 1 0
As % of all contract IT jobs advertised in Cardiff 3.24% 0.24% -
As % of the Libraries, Frameworks & Software Standards category 9.24% 0.60% -
Number of daily rates quoted 8 1 0
Median daily rate £400 £388 -
Median daily rate % change year-on-year +3.22% -  
UK excluding London median daily rate £414 £375 £350
% change year-on-year +10.33% +7.14%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £36.50 £55.00 £37.50
% change year-on-year -33.63% +46.66%  

JSON is in the industry standards, technical specifications and software library and framework skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Cardiff with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
Cardiff
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 119 167 68
As % of all contract IT job vacancies advertised in Cardiff 35.00% 39.86% 26.25%
Number of daily rates quoted 99 124 42
Median daily rate £388 £380 £375
Median daily rate % change year-on-year +1.97% +1.33%  
90% offered a daily rate of more than £225 £288 £279
10% offered a daily rate of more than £475 £473 £550
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 0 0 2
Median hourly rate - - £32.50
UK excluding London median hourly rate £40.00 £38.00 £36.00
% change year-on-year +5.26% +5.55%  

JSON
Job Vacancy Trend in Cardiff

The job posting trend of jobs advertised in Cardiff citing JSON as a proportion of all contract or permanent IT jobs with a match in the Libraries, Frameworks & Software Standards category.

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
Top 30 Related IT Skills in Cardiff

For the 6 months to 24 March 2017, IT contractor jobs citing JSON also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Cardiff region with a requirement for JSON.

1 25 (96.15%) Java
2 23 (88.46%) Scrum
3 22 (84.62%) Spring
3 22 (84.62%) RESTful
4 21 (80.77%) Kafka
4 21 (80.77%) Microservices
4 21 (80.77%) Spring Boot
5 20 (76.92%) MongoDB
6 19 (73.08%) Cucumber
6 19 (73.08%) Agile Software Development
7 17 (65.38%) Go
8 16 (61.54%) HTTP
8 16 (61.54%) iXBRL
8 16 (61.54%) Software Engineering
9 15 (57.69%) Hibernate
9 15 (57.69%) Dropwizard
9 15 (57.69%) Continuous Deployment
10 14 (53.85%) HTML
11 13 (50.00%) Linux
11 13 (50.00%) JAX-RS
11 13 (50.00%) Neo4j
12 12 (46.15%) Responsive Web Design
12 12 (46.15%) REST
12 12 (46.15%) Mac OS X
12 12 (46.15%) Configuration Management
12 12 (46.15%) Unix
12 12 (46.15%) Web Design
12 12 (46.15%) Relational Database
13 8 (30.77%) Finance
14 6 (23.08%) Security Cleared

JSON
Top Related 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 2 (7.69%) WebLogic
2 1 (3.85%) Confluence
Cloud Services
1 1 (3.85%) PaaS
Communications & Networking
1 16 (61.54%) HTTP
Database & Business Intelligence
1 20 (76.92%) MongoDB
2 13 (50.00%) Neo4j
3 12 (46.15%) Relational Database
Development Applications
1 19 (73.08%) Cucumber
2 3 (11.54%) Selenium
3 2 (7.69%) JBehave
3 2 (7.69%) JUnit
4 1 (3.85%) Git (software)
4 1 (3.85%) JIRA
4 1 (3.85%) SoapUI
General
1 8 (30.77%) Finance
Job Titles
1 24 (92.31%) Developer
2 22 (84.62%) Java Developer
3 3 (11.54%) Software Engineer
4 2 (7.69%) Agile Developer
4 2 (7.69%) Agile Java Developer
4 2 (7.69%) Developer/Software Engineer
4 2 (7.69%) Java Engineer
4 2 (7.69%) Java Software Developer
4 2 (7.69%) Java Software Engineer
5 1 (3.85%) Agile Test Manager
5 1 (3.85%) AWS Developer
5 1 (3.85%) HTML Developer
5 1 (3.85%) MongoDB Developer
5 1 (3.85%) Test Manager
Libraries, Frameworks & Software Standards
1 22 (84.62%) RESTful
1 22 (84.62%) Spring
2 21 (80.77%) Kafka
2 21 (80.77%) Spring Boot
3 16 (61.54%) iXBRL
4 15 (57.69%) Dropwizard
4 15 (57.69%) Hibernate
5 14 (53.85%) HTML
6 13 (50.00%) JAX-RS
7 12 (46.15%) REST
8 3 (11.54%) XML
9 2 (7.69%) CSS
10 1 (3.85%) Node.js
10 1 (3.85%) SOAP
10 1 (3.85%) Swagger
Miscellaneous
1 1 (3.85%) Enterprise Software
Operating Systems
1 13 (50.00%) Linux
2 12 (46.15%) Mac OS X
2 12 (46.15%) Unix
3 1 (3.85%) Mac OS
Processes & Methodologies
1 23 (88.46%) Scrum
2 21 (80.77%) Microservices
3 19 (73.08%) Agile Software Development
4 16 (61.54%) Software Engineering
5 15 (57.69%) Continuous Deployment
6 12 (46.15%) Configuration Management
6 12 (46.15%) Responsive Web Design
6 12 (46.15%) Web Design
7 3 (11.54%) BDD
7 3 (11.54%) TDD
8 2 (7.69%) Automated Testing
8 2 (7.69%) DevOps
8 2 (7.69%) Kanban
8 2 (7.69%) OWASP
8 2 (7.69%) Secure Coding
9 1 (3.85%) API Design
9 1 (3.85%) API Development
9 1 (3.85%) Integration Testing
9 1 (3.85%) Performance Testing
9 1 (3.85%) Unit Testing
Programming Languages
1 25 (96.15%) Java
2 17 (65.38%) Go
3 3 (11.54%) SQL
4 1 (3.85%) Python
4 1 (3.85%) Ruby
4 1 (3.85%) Scala
Qualifications
1 6 (23.08%) Security Cleared
2 5 (19.23%) BPSS Clearance
3 2 (7.69%) DV Cleared
3 2 (7.69%) SC Cleared
Quality Assurance & Compliance
1 3 (11.54%) Disclosure Scotland
2 1 (3.85%) QA
Vendors
1 1 (3.85%) HP
1 1 (3.85%) Oracle