The following table provides summary statistics for contract job vacancies advertised in Birmingham 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
West Midlands / Birmingham
Rank 55 52 58
Rank change year-on-year -3 +6  
Contract jobs citing JSON 4 6 5
As % of all contract IT jobs advertised in Birmingham 0.62% 0.93% 0.68%
As % of the Libraries, Frameworks & Software Standards category 2.23% 4.51% 3.05%
Number of daily rates quoted 4 4 2
Median daily rate £315 £338 £313
Median daily rate % change year-on-year -6.66% +8.00%  
90% offered a daily rate of more than £280 £290 £263
10% offered a daily rate of more than £368 £420 £363
UK excluding London median daily rate £413 £375 £350
% change year-on-year +10.00% +7.14%  
Number of hourly rates quoted 0 0 1
Median hourly rate - - £17.00
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 Birmingham with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
Birmingham
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 179 133 164
As % of all contract IT job vacancies advertised in Birmingham 27.58% 20.62% 22.44%
Number of daily rates quoted 121 93 117
Median daily rate £375 £350 £345
Median daily rate % change year-on-year +7.14% +1.44%  
90% offered a daily rate of more than £300 £250 £250
10% offered a daily rate of more than £500 £450 £525
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 0 3 2
Median hourly rate - £9.00 £17.00
Median hourly rate % change year-on-year - -47.05%  
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 Birmingham

The job posting trend of jobs advertised in Birmingham 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 Birmingham

JSON
Contractor Daily Rate Trend in Birmingham

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

Contractor daily rate trend for JSON in Birmingham

JSON
Top 30 Related IT Skills in Birmingham

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 Birmingham region with a requirement for JSON.

1 9 (75.00%) XML
1 9 (75.00%) Agile Software Development
2 8 (66.67%) CSS
2 8 (66.67%) HTML
3 7 (58.33%) JavaScript
4 6 (50.00%) Scrum
4 6 (50.00%) Node.js
4 6 (50.00%) REST
4 6 (50.00%) AngularJS
5 5 (41.67%) GitHub
5 5 (41.67%) CSS3
5 5 (41.67%) Test Automation
5 5 (41.67%) Front End Development
5 5 (41.67%) Git (software)
6 4 (33.33%) Unit Testing
6 4 (33.33%) Integration Testing
6 4 (33.33%) jQuery
6 4 (33.33%) User Acceptance Testing
6 4 (33.33%) Kanban
6 4 (33.33%) Software Testing
6 4 (33.33%) Selenium
6 4 (33.33%) OO
6 4 (33.33%) Open Source
6 4 (33.33%) HTML5
7 3 (25.00%) Cucumber
7 3 (25.00%) WebDriver
7 3 (25.00%) Gherkin
7 3 (25.00%) Twitter Bootstrap
7 3 (25.00%) Docker
7 3 (25.00%) gulp

JSON
Top Related IT Skills in Birmingham 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 1 (8.33%) Elasticsearch
Applications
1 1 (8.33%) MS Excel
Cloud Services
1 5 (41.67%) GitHub
2 2 (16.67%) Amazon CloudWatch
Communications & Networking
1 2 (16.67%) Wireshark
2 1 (8.33%) HTTP
Database & Business Intelligence
1 2 (16.67%) Data Warehouse
1 2 (16.67%) SQL Server
1 2 (16.67%) SQL Server 2012
1 2 (16.67%) SQL Server 2014
1 2 (16.67%) SQL Server Integration Services
1 2 (16.67%) SQL Server Reporting Services
2 1 (8.33%) CouchDB
2 1 (8.33%) MongoDB
2 1 (8.33%) PostgreSQL
2 1 (8.33%) PouchDB
Development Applications
1 5 (41.67%) Git (software)
2 4 (33.33%) Selenium
3 3 (25.00%) Cucumber
3 3 (25.00%) gulp
3 3 (25.00%) JHipster
3 3 (25.00%) Protractor
3 3 (25.00%) WebDriver
4 2 (16.67%) Hudson
4 2 (16.67%) Jenkins
4 2 (16.67%) JIRA
4 2 (16.67%) PhantomJS
5 1 (8.33%) eggPlant
5 1 (8.33%) git-flow
5 1 (8.33%) Mocha
5 1 (8.33%) TeamCity
5 1 (8.33%) Travis CI
General
1 1 (8.33%) Finance
1 1 (8.33%) Multimedia
Job Titles
1 8 (66.67%) Developer
2 4 (33.33%) Front End Developer (Client-Side Developer)
3 3 (25.00%) Analyst
3 3 (25.00%) Angular Developer
4 2 (16.67%) ETL Analyst
4 2 (16.67%) JavaScript Developer
4 2 (16.67%) SQL Analyst
4 2 (16.67%) SSIS Analyst
5 1 (8.33%) Applications Developer
5 1 (8.33%) Excel Developer
5 1 (8.33%) Java Applications Developer
5 1 (8.33%) Java Developer
5 1 (8.33%) Java Web Applications Developer
5 1 (8.33%) PostgreSQL Developer
5 1 (8.33%) RAD Developer
5 1 (8.33%) Senior Developer
5 1 (8.33%) Test Analyst
5 1 (8.33%) Test Engineer
5 1 (8.33%) UI Developer
5 1 (8.33%) Web Applications Developer
Libraries, Frameworks & Software Standards
1 9 (75.00%) XML
2 8 (66.67%) CSS
2 8 (66.67%) HTML
3 6 (50.00%) AngularJS
3 6 (50.00%) Node.js
3 6 (50.00%) REST
4 5 (41.67%) CSS3
5 4 (33.33%) HTML5
5 4 (33.33%) jQuery
6 3 (25.00%) Angular 2
6 3 (25.00%) Gherkin
6 3 (25.00%) Twitter Bootstrap
7 1 (8.33%) .NET
7 1 (8.33%) Ajax
7 1 (8.33%) React
7 1 (8.33%) Spring
Miscellaneous
1 1 (8.33%) Enterprise Software
1 1 (8.33%) User Experience
Operating Systems
1 1 (8.33%) Linux
1 1 (8.33%) Windows
Processes & Methodologies
1 9 (75.00%) Agile Software Development
2 6 (50.00%) Scrum
3 5 (41.67%) Front End Development
3 5 (41.67%) Test Automation
4 4 (33.33%) Integration Testing
4 4 (33.33%) Kanban
4 4 (33.33%) OO
4 4 (33.33%) Open Source
4 4 (33.33%) Software Testing
4 4 (33.33%) Unit Testing
4 4 (33.33%) User Acceptance Testing
5 3 (25.00%) Change Management
6 2 (16.67%) Automated Testing
6 2 (16.67%) Continuous Integration
6 2 (16.67%) Migration
6 2 (16.67%) Performance Testing
6 2 (16.67%) Regression Testing
6 2 (16.67%) TDD
6 2 (16.67%) Test Scripting
6 2 (16.67%) Validation
Programming Languages
1 7 (58.33%) JavaScript
2 2 (16.67%) Java
2 2 (16.67%) SQL
2 2 (16.67%) T-SQL
3 1 (8.33%) C#
3 1 (8.33%) C++
3 1 (8.33%) ES6
3 1 (8.33%) Groovy
3 1 (8.33%) PHP
3 1 (8.33%) Python
3 1 (8.33%) Ruby
3 1 (8.33%) TypeScript
System Software
1 3 (25.00%) Docker
Systems Management
1 2 (16.67%) Zenoss
2 1 (8.33%) Ansible
Vendors
1 3 (25.00%) Microsoft
2 2 (16.67%) Cognos
2 2 (16.67%) IDERA
2 2 (16.67%) RedGate
2 2 (16.67%) Tableau
3 1 (8.33%) Mapbox