The following table provides summary statistics for contract job vacancies advertised in Buckinghamshire 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 30 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.

JSON
South East / Buckinghamshire
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 67 76 80
Rank change year-on-year +9 +4  
Contract jobs citing JSON 16 5 7
As % of all contract IT jobs advertised in Buckinghamshire 1.55% 0.47% 0.58%
As % of the Libraries, Frameworks & Software Standards category 6.35% 1.97% 2.68%
Number of daily rates quoted 4 2 6
Median daily rate £369 £463 £500
Median daily rate % change year-on-year -20.27% -7.50%  
UK excluding London median daily rate £413 £375 £350
% change year-on-year +10.00% +7.14%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £37.00 £55.00 £37.50
% change year-on-year -32.72% +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 Buckinghamshire with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
Buckinghamshire
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 252 254 261
As % of all contract IT job vacancies advertised in Buckinghamshire 24.35% 23.89% 21.73%
Number of daily rates quoted 104 157 151
Median daily rate £365 £355 £325
Median daily rate % change year-on-year +2.81% +9.23%  
90% offered a daily rate of more than £275 £275 £263
10% offered a daily rate of more than £450 £538 £450
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 2 4 0
Median hourly rate £13.50 £16.00 -
Median hourly rate % change year-on-year -15.62% -  
UK excluding London median hourly rate £41.00 £38.00 £36.00
% change year-on-year +7.89% +5.55%  

JSON
Job Vacancy Trend in Buckinghamshire

The job posting trend of jobs advertised in Buckinghamshire 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 Buckinghamshire

JSON
Contractor Daily Rate Trend in Buckinghamshire

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

Contractor daily rate trend for JSON in Buckinghamshire

JSON
Contract Job Locations in Buckinghamshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JSON within the Buckinghamshire region over the 3 months to 30 March 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
Milton Keynes +5 10 £369 -20.27% 1
JSON
South East

For the 6 months to 30 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 Buckinghamshire region with a requirement for JSON.

1 15 (83.33%) Agile Software Development
2 11 (61.11%) Git (software)
3 10 (55.56%) RESTful
3 10 (55.56%) XML
4 9 (50.00%) OO
4 9 (50.00%) Banking
5 8 (44.44%) Web Services
5 8 (44.44%) Apple iOS
6 7 (38.89%) iOS Development
6 7 (38.89%) Apple Swift
6 7 (38.89%) git-flow
6 7 (38.89%) Java
7 6 (33.33%) Scrum
7 6 (33.33%) Objective-C
7 6 (33.33%) TDD
7 6 (33.33%) REST
7 6 (33.33%) Jenkins
8 5 (27.78%) Node.js
8 5 (27.78%) iOS SDK
8 5 (27.78%) Mobile Development
8 5 (27.78%) Software Engineering
8 5 (27.78%) JavaScript
8 5 (27.78%) Apple
9 4 (22.22%) Shell Script
9 4 (22.22%) HTML
9 4 (22.22%) JUnit
9 4 (22.22%) CSS
9 4 (22.22%) SOAP
9 4 (22.22%) Ajax
9 4 (22.22%) jQuery

JSON
Co-occurring IT Skills in Buckinghamshire 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 (11.11%) Tomcat
1 2 (11.11%) WebSphere
2 1 (5.56%) Apache
2 1 (5.56%) Apache Spark
Business Applications
1 1 (5.56%) BusinessWorks
Cloud Services
1 4 (22.22%) OpenShift
Communications & Networking
1 2 (11.11%) Internet
2 1 (5.56%) Intranet
Database & Business Intelligence
1 4 (22.22%) Big Data
1 4 (22.22%) Hadoop
2 3 (16.67%) PostgreSQL
3 2 (11.11%) Apache Hive
3 2 (11.11%) Impala
4 1 (5.56%) Data Lake
4 1 (5.56%) MySQL
4 1 (5.56%) Relational Database
4 1 (5.56%) Sqoop
Development Applications
1 11 (61.11%) Git (software)
2 7 (38.89%) git-flow
3 6 (33.33%) Jenkins
4 4 (22.22%) JUnit
5 2 (11.11%) Selenium
6 1 (5.56%) Maven
6 1 (5.56%) Mockito
6 1 (5.56%) SonarQube
General
1 9 (50.00%) Banking
2 2 (11.11%) Finance
Job Titles
1 15 (83.33%) Developer
2 7 (38.89%) iOS Developer
3 4 (22.22%) Agile Developer
3 4 (22.22%) Java Developer
4 3 (16.67%) Front End Developer (Client-Side Developer)
4 3 (16.67%) Front End Java Developer (Client-Side Java Developer)
5 2 (11.11%) Agile Java Developer
5 2 (11.11%) JavaScript Developer
5 2 (11.11%) Technical Leader
6 1 (5.56%) Applications Developer
6 1 (5.56%) Big Data Developer
6 1 (5.56%) Hadoop Developer
6 1 (5.56%) Internet Developer
6 1 (5.56%) Java Applications Developer
6 1 (5.56%) JSP Developer
6 1 (5.56%) Node.js Developer
6 1 (5.56%) PHP Software Engineer
6 1 (5.56%) Software Engineer
6 1 (5.56%) TIBCO Developer
6 1 (5.56%) WebSphere Developer
Libraries, Frameworks & Software Standards
1 10 (55.56%) RESTful
1 10 (55.56%) XML
2 8 (44.44%) Web Services
3 6 (33.33%) REST
4 5 (27.78%) iOS SDK
4 5 (27.78%) Node.js
5 4 (22.22%) Ajax
5 4 (22.22%) CSS
5 4 (22.22%) HTML
5 4 (22.22%) jQuery
5 4 (22.22%) SOAP
6 3 (16.67%) CSS3
7 2 (11.11%) Java EE
7 2 (11.11%) XSLT
8 1 (5.56%) HTML5
8 1 (5.56%) Java SE
8 1 (5.56%) Middleware
8 1 (5.56%) RabbitMQ
8 1 (5.56%) Ruby on Rails
8 1 (5.56%) TIBCO EMS
Miscellaneous
1 2 (11.11%) Online Banking
2 1 (5.56%) Computer Science
2 1 (5.56%) Enterprise Software
2 1 (5.56%) Mobile App
2 1 (5.56%) Mobile Banking
Operating Systems
1 8 (44.44%) Apple iOS
2 3 (16.67%) Linux
3 1 (5.56%) Android
3 1 (5.56%) Red Hat Enterprise Linux
Processes & Methodologies
1 15 (83.33%) Agile Software Development
2 9 (50.00%) OO
3 7 (38.89%) iOS Development
4 6 (33.33%) Scrum
4 6 (33.33%) TDD
5 5 (27.78%) Mobile Development
5 5 (27.78%) Software Engineering
6 3 (16.67%) Agile Testing
6 3 (16.67%) Unit Testing
7 2 (11.11%) Analytics
7 2 (11.11%) Change Management
8 1 (5.56%) API Development
8 1 (5.56%) BDD
8 1 (5.56%) Continuous Integration
8 1 (5.56%) Kanban
8 1 (5.56%) MapReduce
8 1 (5.56%) Mathematics
8 1 (5.56%) MVC
8 1 (5.56%) Open Source
8 1 (5.56%) Waterfall
Programming Languages
1 7 (38.89%) Apple Swift
1 7 (38.89%) Java
2 6 (33.33%) Objective-C
3 5 (27.78%) JavaScript
4 4 (22.22%) Shell Script
5 3 (16.67%) SQL
6 2 (11.11%) Perl
7 1 (5.56%) C#
7 1 (5.56%) PHP
7 1 (5.56%) Ruby
7 1 (5.56%) Scala
Qualifications
1 1 (5.56%) Degree
Systems Management
1 1 (5.56%) Oozie
Vendors
1 5 (27.78%) Apple
2 3 (16.67%) Red Hat
3 2 (11.11%) TIBCO
4 1 (5.56%) Cloudera
4 1 (5.56%) Oracle
4 1 (5.56%) Pega