Period
to 22 July 2017

The following table provides summary statistics for contract job vacancies advertised in Leeds with a requirement for Backbone.js skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited Backbone.js over the 6 months to 22 July 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.

Backbone.js
6 months to
22 Jul 2017
Same period 2016 Same period 2015
Rank 129 130 129
Rank change year-on-year +1 -1 -14
Contract jobs citing Backbone.js 5 26 23
As % of all contract IT jobs advertised in Leeds 0.23% 0.87% 0.78%
As % of the Libraries, Frameworks & Software Standards category 0.55% 2.24% 2.51%
Number of daily rates quoted 4 18 14
Leeds median daily rate £385 £423 £400
Median daily rate % change year-on-year -8.88% +5.63% +77.78%
10th Percentile £316 £312 £331
90th Percentile £430 £516 £600
West Yorkshire median daily rate £385 £420 £400
% change year-on-year -8.33% +5.00% +77.78%
Number of hourly rates quoted 0 0 0
Leeds median hourly rate - - -
West Yorkshire median hourly rate - - -

Backbone.js 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 Leeds with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
Leeds
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 908 1162 917
As % of all contract IT job vacancies advertised in Leeds 41.90% 38.94% 31.22%
Number of daily rates quoted 682 870 633
Leeds median daily rate £400 £400 £350
Median daily rate % change year-on-year - +14.29% +9.38%
10th Percentile £308 £310 £263
90th Percentile £510 £538 £488
West Yorkshire median daily rate £400 £400 £350
% change year-on-year - +14.29% +7.69%
Number of hourly rates quoted 0 7 6
Leeds median hourly rate - £10.20 £35.00
Median hourly rate % change year-on-year - -70.86% +100.00%
West Yorkshire median hourly rate - £10.20 £40.00
% change year-on-year - -74.50% +162.30%

Backbone.js
Job Vacancy Trend in Leeds

Job postings citing Backbone.js as a percentage of all IT jobs advertised in Leeds.

Job vacancy trend for Backbone.js in Leeds

Backbone.js
Contractor Daily Rate Trend in Leeds

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Backbone.js in Leeds.

Contractor daily rate trend for Backbone.js in Leeds

For the 6 months to 22 July 2017, IT contractor jobs citing Backbone.js 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 Leeds region with a requirement for Backbone.js.

1 5 (100.00%) JavaScript
1 5 (100.00%) Agile Software Development
1 5 (100.00%) AngularJS
2 4 (80.00%) Node.js
2 4 (80.00%) React
2 4 (80.00%) TDD
3 3 (60.00%) Python
3 3 (60.00%) Ruby
4 2 (40.00%) Selenium
4 2 (40.00%) HTML
4 2 (40.00%) Java
4 2 (40.00%) PHP
4 2 (40.00%) SQL
4 2 (40.00%) CSS
4 2 (40.00%) OO
4 2 (40.00%) Pair Programming
4 2 (40.00%) Front End Development
4 2 (40.00%) Redux
4 2 (40.00%) HTML5
4 2 (40.00%) Ember.js
4 2 (40.00%) CSS3
4 2 (40.00%) jQuery
5 1 (20.00%) Continuous Integration
5 1 (20.00%) WordPress
5 1 (20.00%) TeamCity
5 1 (20.00%) Laravel
5 1 (20.00%) KnockoutJS
5 1 (20.00%) Jasmine
5 1 (20.00%) Sass
5 1 (20.00%) LESS

Backbone.js
Co-occurring IT Skills in Leeds 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 (20.00%) CMS
1 1 (20.00%) Drupal
1 1 (20.00%) Tornado
1 1 (20.00%) WordPress
Development Applications
1 2 (40.00%) Selenium
2 1 (20.00%) Git (software)
2 1 (20.00%) Grunt
2 1 (20.00%) Hudson
2 1 (20.00%) Jasmine
2 1 (20.00%) Jenkins
2 1 (20.00%) JIRA
2 1 (20.00%) Karma Test Runner
2 1 (20.00%) Mercurial
2 1 (20.00%) Mocha
2 1 (20.00%) Protractor
2 1 (20.00%) Subversion
2 1 (20.00%) TeamCity
Job Titles
1 5 (100.00%) Developer
2 3 (60.00%) JavaScript Developer
3 2 (40.00%) Front End Developer (Client-Side Developer)
4 1 (20.00%) Front End Web Developer (Client-Side Developer)
4 1 (20.00%) Node.js Developer
4 1 (20.00%) PHP Developer
4 1 (20.00%) Web Developer
Libraries, Frameworks & Software Standards
1 5 (100.00%) AngularJS
2 4 (80.00%) Node.js
2 4 (80.00%) React
3 2 (40.00%) CSS
3 2 (40.00%) CSS3
3 2 (40.00%) Ember.js
3 2 (40.00%) HTML
3 2 (40.00%) HTML5
3 2 (40.00%) jQuery
3 2 (40.00%) Redux
4 1 (20.00%) CodeIgniter
4 1 (20.00%) Flask
4 1 (20.00%) KnockoutJS
4 1 (20.00%) Laravel
4 1 (20.00%) LESS
4 1 (20.00%) RESTful
4 1 (20.00%) Sass
4 1 (20.00%) Symfony
4 1 (20.00%) Twitter Bootstrap
4 1 (20.00%) XHTML
Miscellaneous
1 1 (20.00%) Algorithms
1 1 (20.00%) Computer Science
1 1 (20.00%) Data Structures
1 1 (20.00%) Greenfield Project
1 1 (20.00%) User Experience
Processes & Methodologies
1 5 (100.00%) Agile Software Development
2 4 (80.00%) TDD
3 2 (40.00%) Front End Development
3 2 (40.00%) OO
3 2 (40.00%) Pair Programming
4 1 (20.00%) Continuous Integration
4 1 (20.00%) OO PHP
4 1 (20.00%) Open Source
4 1 (20.00%) Test Automation
4 1 (20.00%) UX Design
4 1 (20.00%) Web Development
Programming Languages
1 5 (100.00%) JavaScript
2 3 (60.00%) Python
2 3 (60.00%) Ruby
3 2 (40.00%) Java
3 2 (40.00%) PHP
3 2 (40.00%) SQL
4 1 (20.00%) C#
System Software
1 1 (20.00%) Docker
Systems Management
1 1 (20.00%) Ansible
1 1 (20.00%) Salt
Vendors
1 1 (20.00%) Zend