The following table provides summary statistics for contract job vacancies advertised in Bristol 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 28 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 West / Bristol
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 71 68 61
Rank change year-on-year -3 -7  
Contract jobs citing Backbone.js 3 3 13
As % of all contract IT jobs advertised in Bristol 0.35% 0.35% 1.41%
As % of the Libraries, Frameworks & Software Standards category 1.33% 1.48% 4.71%
Number of daily rates quoted 2 2 11
Median daily rate £263 £275 £375
Median daily rate % change year-on-year -4.36% -26.66%  
90% offered a daily rate of more than £252 £263 £288
10% offered a daily rate of more than £284 £288 £463
UK excluding London median daily rate £375 £375 £375
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 Bristol with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
Bristol
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 226 203 276
As % of all contract IT job vacancies advertised in Bristol 26.68% 23.74% 29.90%
Number of daily rates quoted 630 591 908
Median daily rate £350 £338 £375
Median daily rate % change year-on-year +3.70% -10.00%  
90% offered a daily rate of more than £275 £263 £275
10% offered a daily rate of more than £500 £475 £438
UK excluding London median daily rate £390 £375 £350
% change year-on-year +4.00% +7.14%  
Number of hourly rates quoted 1 3 0
Median hourly rate £55.00 £20.39 -
Median hourly rate % change year-on-year +169.74% -  
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 Bristol

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

Job vacancy trend for Backbone.js in Bristol

Backbone.js
Contractor Daily Rate Trend in Bristol

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

Contractor daily rate trend for Backbone.js in Bristol

For the 6 months to 28 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 Bristol region with a requirement for Backbone.js.

1 6 (85.71%) AngularJS
2 5 (71.43%) Agile Software Development
3 4 (57.14%) HTML
3 4 (57.14%) JavaScript
3 4 (57.14%) CSS
3 4 (57.14%) Front End Development
4 3 (42.86%) Coaching
4 3 (42.86%) Continuous Improvement
4 3 (42.86%) Kanban
4 3 (42.86%) HTML5
4 3 (42.86%) Scrum
4 3 (42.86%) Ajax
4 3 (42.86%) TDD
4 3 (42.86%) JSON
5 2 (28.57%) Git (software)
5 2 (28.57%) Web Accessibility
5 2 (28.57%) Test Automation
5 2 (28.57%) jQuery
5 2 (28.57%) Games
5 2 (28.57%) Web Design
5 2 (28.57%) MySQL
5 2 (28.57%) Adobe
5 2 (28.57%) Social Media
5 2 (28.57%) Node.js
5 2 (28.57%) Continuous Integration
5 2 (28.57%) Feature Driven Development
5 2 (28.57%) User Stories
5 2 (28.57%) ATDD
5 2 (28.57%) Responsive Web Design
5 2 (28.57%) Sass

Backbone.js
Co-occurring IT Skills in Bristol 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 (14.29%) Oracle Service Bus
1 1 (14.29%) Oracle SOA Suite
1 1 (14.29%) WebLogic
1 1 (14.29%) WordPress
Applications
1 2 (28.57%) Adobe Creative Suite
Business Applications
1 1 (14.29%) Oracle BPM
Communications & Networking
1 1 (14.29%) HTTP
Database & Business Intelligence
1 2 (28.57%) MySQL
Development Applications
1 2 (28.57%) Git (software)
General
1 2 (28.57%) Games
Job Titles
1 4 (57.14%) Developer
2 3 (42.86%) Front End Developer (Client-Side Developer)
2 3 (42.86%) Scrum Master
3 1 (14.29%) HTML CSS Developer
3 1 (14.29%) HTML Developer
3 1 (14.29%) Java Developer
3 1 (14.29%) JavaScript Developer
Libraries, Frameworks & Software Standards
1 6 (85.71%) AngularJS
2 4 (57.14%) CSS
2 4 (57.14%) HTML
3 3 (42.86%) Ajax
3 3 (42.86%) HTML5
3 3 (42.86%) JSON
4 2 (28.57%) CSS3
4 2 (28.57%) jQuery
4 2 (28.57%) LESS
4 2 (28.57%) Node.js
4 2 (28.57%) Sass
5 1 (14.29%) Akka
5 1 (14.29%) Handlebars
5 1 (14.29%) Java EE
5 1 (14.29%) OAuth
5 1 (14.29%) REST
5 1 (14.29%) RESTful
5 1 (14.29%) SAML
5 1 (14.29%) SOAP
5 1 (14.29%) Spring
Miscellaneous
1 2 (28.57%) Social Media
Processes & Methodologies
1 5 (71.43%) Agile Software Development
2 4 (57.14%) Front End Development
3 3 (42.86%) Coaching
3 3 (42.86%) Continuous Improvement
3 3 (42.86%) Kanban
3 3 (42.86%) Scrum
3 3 (42.86%) TDD
4 2 (28.57%) ATDD
4 2 (28.57%) Continuous Integration
4 2 (28.57%) Feature Driven Development
4 2 (28.57%) Infographics
4 2 (28.57%) Mentoring
4 2 (28.57%) Responsive Web Design
4 2 (28.57%) Test Automation
4 2 (28.57%) User Stories
4 2 (28.57%) Web Accessibility
4 2 (28.57%) Web Design
5 1 (14.29%) BPEL
5 1 (14.29%) Microservices
5 1 (14.29%) Software Engineering
Programming Languages
1 4 (57.14%) JavaScript
2 1 (14.29%) Java
2 1 (14.29%) PHP
2 1 (14.29%) Python
2 1 (14.29%) Scala
2 1 (14.29%) SQL
Vendors
1 2 (28.57%) Adobe
2 1 (14.29%) IBM
2 1 (14.29%) Oracle