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 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
West Midlands / Birmingham
3 months to
26 Jun 2017
Same period 2016 Same period 2015
Rank 51 62 60
Rank change year-on-year +11 -2  
Contract jobs citing JSON 1 10 7
As % of all contract IT jobs advertised in Birmingham 0.16% 1.23% 0.94%
As % of the Libraries, Frameworks & Software Standards category 0.58% 4.26% 3.85%
Number of daily rates quoted 1 7 5
Median daily rate £375 £325 £335
Median daily rate % change year-on-year +15.38% -2.98%  
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 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 172 235 182
As % of all contract IT job vacancies advertised in Birmingham 27.92% 28.83% 24.50%
Number of daily rates quoted 118 176 123
Median daily rate £375 £350 £350
Median daily rate % change year-on-year +7.14% -  
90% offered a daily rate of more than £275 £248 £238
10% offered a daily rate of more than £550 £458 £425
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 2 0 1
Median hourly rate £28.50 - £11.93
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 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

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 Birmingham region with a requirement for JSON.

1 2 (50.00%) Agile Software Development
1 2 (50.00%) XML
1 2 (50.00%) Microsoft
1 2 (50.00%) Change Management
2 1 (25.00%) Migration
2 1 (25.00%) CMS
2 1 (25.00%) Scrum
2 1 (25.00%) Python
2 1 (25.00%) Microsoft Excel
2 1 (25.00%) Cognos
2 1 (25.00%) Data Warehouse
2 1 (25.00%) ETL
2 1 (25.00%) HTTP
2 1 (25.00%) C#
2 1 (25.00%) C++
2 1 (25.00%) Java
2 1 (25.00%) SQL
2 1 (25.00%) T-SQL
2 1 (25.00%) SQL Server
2 1 (25.00%) TDD
2 1 (25.00%) NUnit
2 1 (25.00%) SQL Server Reporting Services
2 1 (25.00%) Ruby
2 1 (25.00%) SQL Server Integration Services
2 1 (25.00%) Selenium
2 1 (25.00%) Release Management
2 1 (25.00%) Groovy
2 1 (25.00%) Data Migration
2 1 (25.00%) Data Mapping
2 1 (25.00%) Team Foundation Server

JSON
Co-occurring 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 (25.00%) CMS
1 1 (25.00%) Elasticsearch
Applications
1 1 (25.00%) Microsoft Excel
Communications & Networking
1 1 (25.00%) HTTP
Database & Business Intelligence
1 1 (25.00%) CouchDB
1 1 (25.00%) Data Warehouse
1 1 (25.00%) MongoDB
1 1 (25.00%) PouchDB
1 1 (25.00%) SQL Server
1 1 (25.00%) SQL Server 2012
1 1 (25.00%) SQL Server 2014
1 1 (25.00%) SQL Server Integration Services
1 1 (25.00%) SQL Server Reporting Services
Development Applications
1 1 (25.00%) Cucumber
1 1 (25.00%) eggPlant
1 1 (25.00%) Mocha
1 1 (25.00%) MSTest
1 1 (25.00%) NUnit
1 1 (25.00%) Selenium
1 1 (25.00%) Team Foundation Server
1 1 (25.00%) Travis CI
1 1 (25.00%) WebDriver
Job Titles
1 2 (50.00%) Developer
2 1 (25.00%) Analyst
2 1 (25.00%) Developer in Test
2 1 (25.00%) ETL Analyst
2 1 (25.00%) Node.js Developer
2 1 (25.00%) Senior Test Engineer
2 1 (25.00%) Software Developer
2 1 (25.00%) SQL Analyst
2 1 (25.00%) SSIS Analyst
2 1 (25.00%) Test Engineer
Libraries, Frameworks & Software Standards
1 2 (50.00%) XML
2 1 (25.00%) AngularJS
2 1 (25.00%) Gherkin
2 1 (25.00%) Node.js
2 1 (25.00%) React
2 1 (25.00%) REST
Miscellaneous
1 1 (25.00%) Enterprise Software
Processes & Methodologies
1 2 (50.00%) Agile Software Development
1 2 (50.00%) Change Management
2 1 (25.00%) BDD
2 1 (25.00%) Data Governance
2 1 (25.00%) Data Mapping
2 1 (25.00%) Data Migration
2 1 (25.00%) ETL
2 1 (25.00%) Migration
2 1 (25.00%) Performance Optimisation
2 1 (25.00%) Prototyping
2 1 (25.00%) Release Management
2 1 (25.00%) Scrum
2 1 (25.00%) TDD
2 1 (25.00%) Test Automation
Programming Languages
1 1 (25.00%) C#
1 1 (25.00%) C++
1 1 (25.00%) ES6
1 1 (25.00%) Groovy
1 1 (25.00%) Java
1 1 (25.00%) Python
1 1 (25.00%) Ruby
1 1 (25.00%) SQL
1 1 (25.00%) T-SQL
1 1 (25.00%) TypeScript
Vendors
1 2 (50.00%) Microsoft
2 1 (25.00%) Cognos
2 1 (25.00%) IDERA
2 1 (25.00%) Mapbox
2 1 (25.00%) RedGate
2 1 (25.00%) Tableau