The following table provides summary statistics for contract job vacancies advertised in Surrey 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 3 months to 24 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.

Backbone.js
South East / Surrey
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 90 88 71
Rank change year-on-year -2 -17  
Contract jobs citing Backbone.js 1 6 19
As % of all contract IT jobs advertised in Surrey 0.083% 0.47% 1.47%
As % of the Libraries, Frameworks & Software Standards category 0.29% 1.52% 5.12%
Number of daily rates quoted 1 0 15
Median daily rate £363 - £400
UK excluding London median daily rate £360 £375 £375
% change year-on-year -4.00% -  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London 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 Surrey with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
Surrey
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 343 394 371
As % of all contract IT job vacancies advertised in Surrey 28.49% 31.12% 28.63%
Number of daily rates quoted 242 291 228
Median daily rate £400 £425 £400
Median daily rate % change year-on-year -5.88% +6.25%  
90% offered a daily rate of more than £325 £325 £300
10% offered a daily rate of more than £525 £550 £450
UK excluding London median daily rate £398 £375 £350
% change year-on-year +6.00% +7.14%  
Number of hourly rates quoted 5 13 5
Median hourly rate £45.00 £45.00 £40.00
Median hourly rate % change year-on-year - +12.50%  
90% offered a hourly rate of more than £43.00 £11.00 £13.50
10% offered a hourly rate of more than £47.00 £46.00 £52.18
UK excluding London median hourly rate £42.50 £36.00 £40.00
% change year-on-year +18.05% -10.00%  

Backbone.js
Job Vacancy Trend in Surrey

The job posting trend of jobs advertised in Surrey citing Backbone.js as a proportion of all contract or permanent IT jobs with a match in the Libraries, Frameworks & Software Standards category.

Job vacancy trend for Backbone.js in Surrey

Backbone.js
Contractor Daily Rate Trend in Surrey

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

Contractor daily rate trend for Backbone.js in Surrey

For the 6 months to 24 June 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 Surrey region with a requirement for Backbone.js.

1 8 (100.00%) AngularJS
2 7 (87.50%) Ember.js
2 7 (87.50%) Front End Development
2 7 (87.50%) JavaScript
3 5 (62.50%) Agile Software Development
3 5 (62.50%) TDD
4 4 (50.00%) CSS
4 4 (50.00%) React
4 4 (50.00%) HTML
5 3 (37.50%) Continuous Improvement
5 3 (37.50%) KnockoutJS
5 3 (37.50%) Durandal
5 3 (37.50%) Polymer
6 2 (25.00%) Adobe
7 1 (12.50%) Foreign Exchange (FX)
7 1 (12.50%) Software Engineering
7 1 (12.50%) Web Development
7 1 (12.50%) JSON
7 1 (12.50%) jQuery
7 1 (12.50%) PHP
7 1 (12.50%) SQL
7 1 (12.50%) Photoshop
7 1 (12.50%) Finance
7 1 (12.50%) Scrum
7 1 (12.50%) User Experience
7 1 (12.50%) Adobe Experience Manager
7 1 (12.50%) Sass
7 1 (12.50%) LESS
7 1 (12.50%) HTML5
7 1 (12.50%) NoSQL

Backbone.js
Co-occurring IT Skills in Surrey 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 (12.50%) Adobe Experience Manager
Applications
1 1 (12.50%) Photoshop
Database & Business Intelligence
1 1 (12.50%) NoSQL
General
1 1 (12.50%) Finance
Job Titles
1 8 (100.00%) Developer
2 4 (50.00%) Front End Developer (Client-Side Developer)
2 4 (50.00%) JavaScript Developer
3 1 (12.50%) Angular Developer
3 1 (12.50%) Senior Developer
3 1 (12.50%) Senior Front-End Developer
Libraries, Frameworks & Software Standards
1 8 (100.00%) AngularJS
2 7 (87.50%) Ember.js
3 4 (50.00%) CSS
3 4 (50.00%) HTML
3 4 (50.00%) React
4 3 (37.50%) Durandal
4 3 (37.50%) KnockoutJS
4 3 (37.50%) Polymer
5 1 (12.50%) CSS3
5 1 (12.50%) HTML5
5 1 (12.50%) jQuery
5 1 (12.50%) JSON
5 1 (12.50%) LESS
5 1 (12.50%) Node.js
5 1 (12.50%) REST
5 1 (12.50%) Sass
Miscellaneous
1 1 (12.50%) Foreign Exchange (FX)
1 1 (12.50%) User Experience
Processes & Methodologies
1 7 (87.50%) Front End Development
2 5 (62.50%) Agile Software Development
2 5 (62.50%) TDD
3 3 (37.50%) Continuous Improvement
4 1 (12.50%) Scrum
4 1 (12.50%) Software Engineering
4 1 (12.50%) Web Development
Programming Languages
1 7 (87.50%) JavaScript
2 1 (12.50%) PHP
2 1 (12.50%) SQL
Vendors
1 2 (25.00%) Adobe