The following table provides summary statistics for contract job vacancies advertised in Oxford 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 April 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
Oxfordshire / Oxford
3 months to
26 Apr 2017
Same period 2016 Same period 2015
Rank 35 27 40
Rank change year-on-year -8 +13  
Contract jobs citing JSON 9 10 5
As % of all contract IT jobs advertised in Oxford 3.09% 3.86% 1.37%
As % of the Libraries, Frameworks & Software Standards category 6.77% 12.99% 5.38%
Number of daily rates quoted 9 8 5
Median daily rate £500 £425 £275
Median daily rate % change year-on-year +17.64% +54.54%  
90% offered a daily rate of more than £470 £401 £256
10% offered a daily rate of more than £550 £425 £356
UK excluding London median daily rate £425 £389 £350
% change year-on-year +9.32% +11.07%  
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 Oxford with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
Oxford
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 133 77 93
As % of all contract IT job vacancies advertised in Oxford 45.70% 29.73% 25.41%
Number of daily rates quoted 88 55 73
Median daily rate £400 £425 £400
Median daily rate % change year-on-year -5.88% +6.25%  
90% offered a daily rate of more than £325 £300 £275
10% offered a daily rate of more than £525 £525 £600
UK excluding London median daily rate £375 £375 £350
% change year-on-year - +7.14%  
Number of hourly rates quoted 2 2 1
Median hourly rate £45.00 £11.00 £14.50
Median hourly rate % change year-on-year +309.09% -24.13%  
UK excluding London median hourly rate £42.50 £37.50 £36.50
% change year-on-year +13.33% +2.73%  

JSON
Job Vacancy Trend in Oxford

The job posting trend of jobs advertised in Oxford 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 Oxford

JSON
Contractor Daily Rate Trend in Oxford

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

Contractor daily rate trend for JSON in Oxford

For the 6 months to 26 April 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 Oxford region with a requirement for JSON.

1 14 (77.78%) Agile Software Development
2 9 (50.00%) E-Commerce
2 9 (50.00%) SOAP
2 9 (50.00%) Web Services
3 8 (44.44%) Java
3 8 (44.44%) RESTful
4 7 (38.89%) XML
5 6 (33.33%) JavaScript
5 6 (33.33%) Git (software)
6 5 (27.78%) JBoss
6 5 (27.78%) Tomcat
6 5 (27.78%) TDD
6 5 (27.78%) Spring
6 5 (27.78%) Maven
6 5 (27.78%) Continuous Integration
7 4 (22.22%) CSS
7 4 (22.22%) Linux
7 4 (22.22%) SSL
7 4 (22.22%) HTML
7 4 (22.22%) Dropwizard
7 4 (22.22%) Spring Boot
7 4 (22.22%) Microservices
7 4 (22.22%) Spring Security
7 4 (22.22%) Waterfall
7 4 (22.22%) REST
8 3 (16.67%) CSS3
8 3 (16.67%) Jenkins
8 3 (16.67%) Grunt
8 3 (16.67%) Yeoman
8 3 (16.67%) Ember.js

JSON
Co-occurring IT Skills in Oxford 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 5 (27.78%) JBoss
1 5 (27.78%) Tomcat
2 1 (5.56%) BizTalk Server
Business Applications
1 2 (11.11%) Magento
2 1 (5.56%) Salesforce.com CRM
2 1 (5.56%) SAP R/3
Cloud Services
1 2 (11.11%) Amazon AWS
Communications & Networking
1 4 (22.22%) SSL
2 1 (5.56%) FTP
Database & Business Intelligence
1 2 (11.11%) Data Warehouse
1 2 (11.11%) MongoDB
1 2 (11.11%) NoSQL
1 2 (11.11%) Oracle Database
2 1 (5.56%) MySQL
2 1 (5.56%) SQL Server
Development Applications
1 6 (33.33%) Git (software)
2 5 (27.78%) Maven
3 3 (16.67%) Bower
3 3 (16.67%) Grunt
3 3 (16.67%) Jenkins
3 3 (16.67%) Mockito
3 3 (16.67%) Yeoman
4 2 (11.11%) JIRA
4 2 (11.11%) Sonatype Nexus
4 2 (11.11%) Talend Open Studio
4 2 (11.11%) Xcode
General
1 2 (11.11%) Publishing
Job Titles
1 17 (94.44%) Developer
2 5 (27.78%) E-Commerce Developer
2 5 (27.78%) Java Developer
3 3 (16.67%) AWS Developer
4 2 (11.11%) Agile Developer
4 2 (11.11%) Agile Java Developer
4 2 (11.11%) Data Warehouse Developer
4 2 (11.11%) ETL Developer
4 2 (11.11%) iOS Developer
4 2 (11.11%) Java E-Commerce Developer
4 2 (11.11%) JavaScript Developer
4 2 (11.11%) Magento Developer
4 2 (11.11%) MongoDB Developer
4 2 (11.11%) PHP Developer
4 2 (11.11%) PHP Magento Developer
5 1 (5.56%) .NET Developer
5 1 (5.56%) BizTalk Developer
5 1 (5.56%) Senior Java Developer
5 1 (5.56%) Software Test Engineer
5 1 (5.56%) Test Engineer
Libraries, Frameworks & Software Standards
1 9 (50.00%) SOAP
1 9 (50.00%) Web Services
2 8 (44.44%) RESTful
3 7 (38.89%) XML
4 5 (27.78%) Spring
5 4 (22.22%) CSS
5 4 (22.22%) Dropwizard
5 4 (22.22%) HTML
5 4 (22.22%) REST
5 4 (22.22%) Spring Boot
5 4 (22.22%) Spring Security
6 3 (16.67%) CSS3
6 3 (16.67%) Ember.js
6 3 (16.67%) HTML5
6 3 (16.67%) jQuery
6 3 (16.67%) React
6 3 (16.67%) Redux
6 3 (16.67%) WireMock
7 2 (11.11%) Java EE
7 2 (11.11%) XML Schema
Miscellaneous
1 2 (11.11%) iPhone
Operating Systems
1 4 (22.22%) Linux
2 3 (16.67%) Apple iOS
3 1 (5.56%) Android
Processes & Methodologies
1 14 (77.78%) Agile Software Development
2 9 (50.00%) E-Commerce
3 5 (27.78%) Continuous Integration
3 5 (27.78%) TDD
4 4 (22.22%) Microservices
4 4 (22.22%) Waterfall
5 3 (16.67%) Front End Development
5 3 (16.67%) Scrum
5 3 (16.67%) Workflow
6 2 (11.11%) Automated Testing
6 2 (11.11%) Business Intelligence
6 2 (11.11%) Data Management
6 2 (11.11%) Data Modelling
6 2 (11.11%) DevOps
6 2 (11.11%) ETL
6 2 (11.11%) Informatics
6 2 (11.11%) Kanban
6 2 (11.11%) Migration
6 2 (11.11%) Pair Programming
6 2 (11.11%) Web Development
Programming Languages
1 8 (44.44%) Java
2 6 (33.33%) JavaScript
3 3 (16.67%) SQL
4 2 (11.11%) C#
4 2 (11.11%) Objective-C
4 2 (11.11%) PHP
5 1 (5.56%) Scala
5 1 (5.56%) T-SQL
Quality Assurance & Compliance
1 3 (16.67%) QA
2 2 (11.11%) PCI DSS
Vendors
1 2 (11.11%) Oracle
1 2 (11.11%) Talend
2 1 (5.56%) PayPal
2 1 (5.56%) Salesforce.com
2 1 (5.56%) SAP