The following table provides summary statistics for contract job vacancies advertised in Cambridge 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 25 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
25 Mar 2017
Same period 2016 Same period 2015
JSON
Cambridgeshire / Cambridge
Rank 31 40 36
Rank change year-on-year +9 -4  
Contract jobs citing JSON 9 6 3
As % of all contract IT jobs advertised in Cambridge 2.88% 1.47% 0.94%
As % of the Libraries, Frameworks & Software Standards category 11.11% 4.88% 3.30%
Number of daily rates quoted 3 4 3
Median daily rate £350 £368 £300
Median daily rate % change year-on-year -4.76% +22.50%  
UK excluding London median daily rate £413 £375 £350
% change year-on-year +10.00% +7.14%  
Number of hourly rates quoted 0 2 0
Median hourly rate - £52.50 -
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 Cambridge with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
Cambridge
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 81 123 91
As % of all contract IT job vacancies advertised in Cambridge 25.88% 30.15% 28.44%
Number of daily rates quoted 44 78 59
Median daily rate £350 £370 £350
Median daily rate % change year-on-year -5.40% +5.71%  
90% offered a daily rate of more than £200 £315 £250
10% offered a daily rate of more than £465 £505 £488
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 0 4 1
Median hourly rate - £50.00 £25.00
Median hourly rate % change year-on-year - +100.00%  
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 Cambridge

The job posting trend of jobs advertised in Cambridge 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 Cambridge

JSON
Contractor Daily Rate Trend in Cambridge

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

Contractor daily rate trend for JSON in Cambridge

JSON
Contractor Hourly Rate Trend in Cambridge

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing JSON in Cambridge.

Contractor hourly rate trend for JSON in Cambridge

JSON
Top 30 Related IT Skills in Cambridge

For the 6 months to 25 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 Cambridge region with a requirement for JSON.

1 11 (57.89%) Agile Software Development
1 11 (57.89%) HTML
1 11 (57.89%) Java
1 11 (57.89%) REST
2 10 (52.63%) JavaScript
2 10 (52.63%) XML
3 8 (42.11%) jQuery
4 7 (36.84%) Spring
4 7 (36.84%) PostgreSQL
4 7 (36.84%) MVC
4 7 (36.84%) SQL
4 7 (36.84%) CSS
4 7 (36.84%) MongoDB
4 7 (36.84%) NoSQL
5 6 (31.58%) HTML5
5 6 (31.58%) AngularJS
5 6 (31.58%) Web Services
6 5 (26.32%) OO
6 5 (26.32%) Hibernate
6 5 (26.32%) Continuous Integration
6 5 (26.32%) Open Source
6 5 (26.32%) JPA
6 5 (26.32%) Git (software)
7 4 (21.05%) Domain-Driven Design
7 4 (21.05%) Mercurial
7 4 (21.05%) Scala
7 4 (21.05%) Atlassian Bamboo
7 4 (21.05%) Groovy
7 4 (21.05%) Mockito
7 4 (21.05%) BDD

JSON
Top Related IT Skills in Cambridge 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 (15.79%) Cloud Foundry
2 2 (10.53%) Tomcat
3 1 (5.26%) Apache Spark
3 1 (5.26%) GlassFish
3 1 (5.26%) IIS
3 1 (5.26%) Mule
3 1 (5.26%) Mule ESB
3 1 (5.26%) nginx
3 1 (5.26%) Predix
Business Applications
1 4 (21.05%) Payment Gateway
Cloud Services
1 3 (15.79%) Amazon AWS
2 2 (10.53%) Microsoft Azure
3 1 (5.26%) Azure Active Directory
3 1 (5.26%) SaaS
Communications & Networking
1 1 (5.26%) HTTP
1 1 (5.26%) HTTPS
1 1 (5.26%) Internet
1 1 (5.26%) SSL
1 1 (5.26%) TCP/IP
1 1 (5.26%) X.509
Database & Business Intelligence
1 7 (36.84%) MongoDB
1 7 (36.84%) NoSQL
1 7 (36.84%) PostgreSQL
2 4 (21.05%) SQL Server
3 3 (15.79%) Redis
4 2 (10.53%) Big Data
4 2 (10.53%) MySQL
4 2 (10.53%) Relational Database
5 1 (5.26%) Apache Cassandra
5 1 (5.26%) GIS
5 1 (5.26%) Triplestore
Development Applications
1 5 (26.32%) Git (software)
2 4 (21.05%) Atlassian Bamboo
2 4 (21.05%) IntelliJ
2 4 (21.05%) Jenkins
2 4 (21.05%) JUnit
2 4 (21.05%) Mercurial
2 4 (21.05%) Mockito
2 4 (21.05%) WebStorm
3 2 (10.53%) Maven
4 1 (5.26%) NetBeans
4 1 (5.26%) Subversion
General
1 3 (15.79%) Games
1 3 (15.79%) Telecoms
2 1 (5.26%) Banking
2 1 (5.26%) Finance
Job Titles
1 15 (78.95%) Developer
2 7 (36.84%) Java Developer
3 2 (10.53%) AWS Developer
3 2 (10.53%) Cloud Developer
3 2 (10.53%) Python Developer
4 1 (5.26%) Front End Developer (Client-Side Developer)
4 1 (5.26%) GUI Developer
4 1 (5.26%) Integration Developer
4 1 (5.26%) Java GUI Developer
4 1 (5.26%) Software Developer
4 1 (5.26%) Software Engineer
4 1 (5.26%) Technical Leader
4 1 (5.26%) Tester
4 1 (5.26%) XML Developer
Libraries, Frameworks & Software Standards
1 11 (57.89%) HTML
1 11 (57.89%) REST
2 10 (52.63%) XML
3 8 (42.11%) jQuery
4 7 (36.84%) CSS
4 7 (36.84%) Spring
5 6 (31.58%) AngularJS
5 6 (31.58%) HTML5
5 6 (31.58%) Web Services
6 5 (26.32%) Hibernate
6 5 (26.32%) JPA
7 4 (21.05%) LESS
7 4 (21.05%) Node.js
7 4 (21.05%) XML Schema
8 3 (15.79%) Angular 2
8 3 (15.79%) D3.js
8 3 (15.79%) OpenLayers
8 3 (15.79%) Polymer
8 3 (15.79%) Unity (Game Engine)
8 3 (15.79%) Web Components
Miscellaneous
1 4 (21.05%) User Experience
2 1 (5.26%) Data Structures
2 1 (5.26%) Hedge funds
2 1 (5.26%) Internet of Things
Operating Systems
1 3 (15.79%) Linux
2 1 (5.26%) Unix
2 1 (5.26%) Windows
Processes & Methodologies
1 11 (57.89%) Agile Software Development
2 7 (36.84%) MVC
3 5 (26.32%) Continuous Integration
3 5 (26.32%) OO
3 5 (26.32%) Open Source
4 4 (21.05%) BDD
4 4 (21.05%) BPMN
4 4 (21.05%) Domain-Driven Design
4 4 (21.05%) Information Security
4 4 (21.05%) TDD
5 3 (15.79%) OWASP
5 3 (15.79%) Responsive Web Design
5 3 (15.79%) Software Delivery
5 3 (15.79%) Technical Architecture
6 2 (10.53%) Front End Development
6 2 (10.53%) Software Engineering
6 2 (10.53%) Stakeholder Management
6 2 (10.53%) Web Development
7 1 (5.26%) Asset Management
7 1 (5.26%) RDF
Programming Languages
1 11 (57.89%) Java
2 10 (52.63%) JavaScript
3 7 (36.84%) SQL
4 4 (21.05%) Groovy
4 4 (21.05%) Python
4 4 (21.05%) Scala
5 2 (10.53%) Perl
5 2 (10.53%) XPath
6 1 (5.26%) C
6 1 (5.26%) C#
6 1 (5.26%) C++
6 1 (5.26%) PHP
6 1 (5.26%) PowerShell
6 1 (5.26%) Tcl
6 1 (5.26%) VBA
6 1 (5.26%) XQuery
Qualifications
1 2 (10.53%) Security Cleared
2 1 (5.26%) DV Cleared
2 1 (5.26%) SC Cleared
Quality Assurance & Compliance
1 1 (5.26%) CDISC
1 1 (5.26%) HL7
System Software
1 1 (5.26%) Active Directory
1 1 (5.26%) Docker
1 1 (5.26%) Firmware
Vendors
1 1 (5.26%) SAP