The following table provides summary statistics for contract job vacancies advertised in South Wales 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 26 June 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.

JSON
Wales / South Wales
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 47 48 64
Rank change year-on-year +1 +16  
Contract jobs citing JSON 9 2 4
As % of all contract IT jobs advertised in South Wales 1.69% 0.42% 0.68%
As % of the Libraries, Frameworks & Software Standards category 6.62% 1.61% 1.96%
Number of daily rates quoted 7 1 3
Median daily rate £350 £275 £350
Median daily rate % change year-on-year +27.27% -21.42%  
UK excluding London median daily rate £425 £400 £375
% change year-on-year +6.25% +6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £41.50 £29.14 £55.00
% change year-on-year +42.41% -47.01%  

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 South Wales with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
South Wales
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 136 124 204
As % of all contract IT job vacancies advertised in South Wales 25.56% 26.22% 34.93%
Number of daily rates quoted 106 96 163
Median daily rate £370 £400 £375
Median daily rate % change year-on-year -7.50% +6.66%  
90% offered a daily rate of more than £313 £300 £215
10% offered a daily rate of more than £450 £475 £450
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 3 1 0
Median hourly rate £16.50 £41.50 -
Median hourly rate % change year-on-year -60.24% -  
UK excluding London median hourly rate £42.50 £36.00 £40.00
% change year-on-year +18.05% -10.00%  

JSON
Job Vacancy Trend in South Wales

The job posting trend of jobs advertised in South Wales 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 South Wales

JSON
Contractor Daily Rate Trend in South Wales

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

Contractor daily rate trend for JSON in South Wales

JSON
Contractor Daily Rate Histogram in South Wales

The daily rate distribution of IT jobs citing JSON in South Wales over the 3 months to 26 June 2017.

Contractor daily rate histogram for JSON in South Wales

JSON
Contract Job Locations in South Wales

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JSON within the South Wales region over the 3 months to 26 June 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Cardiff +5 7 £338 +22.72%
JSON
Wales

For the 6 months to 26 June 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 South Wales region with a requirement for JSON.

1 16 (80.00%) Java
2 13 (65.00%) Scrum
3 12 (60.00%) Agile Software Development
3 12 (60.00%) RESTful
3 12 (60.00%) Kafka
4 11 (55.00%) Spring Boot
4 11 (55.00%) Spring
5 10 (50.00%) Microservices
5 10 (50.00%) MongoDB
6 9 (45.00%) Software Engineering
6 9 (45.00%) Test Automation
6 9 (45.00%) Linux
7 8 (40.00%) Cucumber
8 7 (35.00%) iXBRL
8 7 (35.00%) REST
8 7 (35.00%) Dropwizard
8 7 (35.00%) Continuous Deployment
8 7 (35.00%) HTML
8 7 (35.00%) Hibernate
9 6 (30.00%) Configuration Management
9 6 (30.00%) HTTP
9 6 (30.00%) Mac OS X
9 6 (30.00%) Unix
9 6 (30.00%) Security Cleared
9 6 (30.00%) Neo4j
9 6 (30.00%) Relational Database
9 6 (30.00%) JAX-RS
9 6 (30.00%) Go
10 5 (25.00%) Responsive Web Design
10 5 (25.00%) Web Design

JSON
Co-occurring IT Skills in South Wales 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 3 (15.00%) Apache
2 2 (10.00%) Apache Spark
3 1 (5.00%) Elasticsearch
3 1 (5.00%) WebLogic
Cloud Services
1 1 (5.00%) BrowserStack
Communications & Networking
1 6 (30.00%) HTTP
2 1 (5.00%) RTSP
Database & Business Intelligence
1 10 (50.00%) MongoDB
2 6 (30.00%) Neo4j
2 6 (30.00%) Relational Database
3 2 (10.00%) Big Data
3 2 (10.00%) Hadoop
3 2 (10.00%) HBase
4 1 (5.00%) Apache Hive
4 1 (5.00%) Impala
4 1 (5.00%) MySQL
4 1 (5.00%) NoSQL
4 1 (5.00%) Pentaho
4 1 (5.00%) PostgreSQL
Development Applications
1 8 (40.00%) Cucumber
2 2 (10.00%) Git (software)
3 1 (5.00%) IntelliJ
3 1 (5.00%) JBehave
3 1 (5.00%) JUnit
3 1 (5.00%) Selenium
3 1 (5.00%) Xcode
General
1 5 (25.00%) Finance
2 1 (5.00%) Military
2 1 (5.00%) Telecoms
Job Titles
1 16 (80.00%) Developer
2 12 (60.00%) Java Developer
3 2 (10.00%) Android Developer
3 2 (10.00%) Java Engineer
3 2 (10.00%) Software Engineer
4 1 (5.00%) Agile Business Analyst
4 1 (5.00%) Agile Developer
4 1 (5.00%) Agile Java Developer
4 1 (5.00%) AWS Developer
4 1 (5.00%) Big Data Engineer
4 1 (5.00%) Data Engineer
4 1 (5.00%) Developer/Software Engineer
4 1 (5.00%) iOS Developer
4 1 (5.00%) Java Software Engineer
4 1 (5.00%) Mobile Applications Developer
4 1 (5.00%) MongoDB Developer
4 1 (5.00%) PHP Developer
4 1 (5.00%) SC Cleared Java Developer
4 1 (5.00%) Senior Java Engineer
4 1 (5.00%) Test Engineer
Libraries, Frameworks & Software Standards
1 12 (60.00%) Kafka
1 12 (60.00%) RESTful
2 11 (55.00%) Spring
2 11 (55.00%) Spring Boot
3 7 (35.00%) Dropwizard
3 7 (35.00%) Hibernate
3 7 (35.00%) HTML
3 7 (35.00%) iXBRL
3 7 (35.00%) REST
4 6 (30.00%) JAX-RS
5 5 (25.00%) XML
6 3 (15.00%) Web Services
7 1 (5.00%) Android SDK
7 1 (5.00%) Cocoa
7 1 (5.00%) CSS
7 1 (5.00%) Flash
7 1 (5.00%) LAMP
7 1 (5.00%) Laravel
7 1 (5.00%) Middleware
7 1 (5.00%) SOAP
Miscellaneous
1 1 (5.00%) Analytical Skills
1 1 (5.00%) Computer Science
1 1 (5.00%) Cyberthreat
1 1 (5.00%) Data Structures
1 1 (5.00%) Management Information System
1 1 (5.00%) Replication
Operating Systems
1 9 (45.00%) Linux
2 6 (30.00%) Mac OS X
2 6 (30.00%) Unix
3 2 (10.00%) Android
4 1 (5.00%) Apple iOS
Processes & Methodologies
1 13 (65.00%) Scrum
2 12 (60.00%) Agile Software Development
3 10 (50.00%) Microservices
4 9 (45.00%) Software Engineering
4 9 (45.00%) Test Automation
5 7 (35.00%) Continuous Deployment
6 6 (30.00%) Configuration Management
7 5 (25.00%) Responsive Web Design
7 5 (25.00%) Web Design
8 3 (15.00%) OO
8 3 (15.00%) TDD
9 2 (10.00%) Android Development
9 2 (10.00%) ETL
10 1 (5.00%) Dashboard Development
10 1 (5.00%) Domain-Driven Design
10 1 (5.00%) iOS Development
10 1 (5.00%) Mobile Development
10 1 (5.00%) Model-Based Systems Engineering
10 1 (5.00%) Process Improvement
10 1 (5.00%) Root Cause Analysis
Programming Languages
1 16 (80.00%) Java
2 6 (30.00%) Go
3 3 (15.00%) SQL
4 1 (5.00%) Apple Swift
4 1 (5.00%) JavaScript
4 1 (5.00%) Objective-C
4 1 (5.00%) PHP
4 1 (5.00%) Python
Qualifications
1 6 (30.00%) Security Cleared
2 4 (20.00%) BPSS Clearance
3 3 (15.00%) SC Cleared
4 1 (5.00%) DV Cleared
Quality Assurance & Compliance
1 2 (10.00%) Disclosure Scotland
System Software
1 1 (5.00%) Apache Flume
Systems Management
1 1 (5.00%) Kibana
Vendors
1 1 (5.00%) Apple
1 1 (5.00%) Cloudera