The following table provides summary statistics for contract job vacancies advertised in London with a requirement for YUI skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited YUI over the 3 months to 28 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.

Yahoo! User Interface Library (YUI)
England / London
3 months to
28 Mar 2017
Same period 2016 Same period 2015
Rank 400 417 401
Rank change year-on-year +17 -16  
Contract jobs citing YUI 2 9 11
As % of all contract IT jobs advertised in London 0.010% 0.040% 0.051%
As % of the Libraries, Frameworks & Software Standards category 0.029% 0.13% 0.17%
Number of daily rates quoted 1 8 10
Median daily rate £650 £563 £479
Median daily rate % change year-on-year +15.55% +17.43%  
UK excluding London median daily rate - £425 £350
% change year-on-year - +21.42%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate - - -

YUI 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 London with a requirement for industry standards, technical specifications and software library and framework skills.

Contract Software Library & Framework Skills
London
Contract job vacancies with a requirement for industry standards, technical specifications and software library and framework skills 6789 7106 6491
As % of all contract IT job vacancies advertised in London 34.82% 31.86% 30.16%
Number of daily rates quoted 5057 5320 4694
Median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.55% +5.88%  
90% offered a daily rate of more than £345 £325 £311
10% offered a daily rate of more than £601 £600 £575
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 50 27 27
Median hourly rate £47.50 £50.00 £27.37
Median hourly rate % change year-on-year -5.00% +82.68%  
90% offered a hourly rate of more than £17.01 £21.17 £20.00
10% offered a hourly rate of more than £100.00 £55.00 £55.00
UK excluding London median hourly rate £40.50 £38.00 £36.00
% change year-on-year +6.57% +5.55%  

YUI
Job Vacancy Trend in London

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

Job vacancy trend for YUI in London

YUI
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for YUI in London

YUI
Contractor Hourly Rate Trend in London

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing YUI in London.

Contractor hourly rate trend for YUI in London

YUI
Top 30 Co-occurring IT Skills in London

For the 6 months to 28 March 2017, IT contractor jobs citing YUI 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 London region with a requirement for YUI.

1 7 (100.00%) HTML
2 6 (85.71%) Agile Software Development
2 6 (85.71%) JavaScript
2 6 (85.71%) CSS
2 6 (85.71%) jQuery
3 5 (71.43%) HTML5
3 5 (71.43%) CSS3
3 5 (71.43%) AngularJS
3 5 (71.43%) Java
3 5 (71.43%) Finance
4 4 (57.14%) TDD
4 4 (57.14%) Web Services
4 4 (57.14%) Responsive Web Design
4 4 (57.14%) Analytical Skills
4 4 (57.14%) Amazon AWS
5 3 (42.86%) Scala
5 3 (42.86%) Puppet
5 3 (42.86%) MongoDB
5 3 (42.86%) RabbitMQ
5 3 (42.86%) Dojo
5 3 (42.86%) Grails
5 3 (42.86%) Groovy
5 3 (42.86%) JRuby
5 3 (42.86%) Clojure
5 3 (42.86%) OO
5 3 (42.86%) Python
5 3 (42.86%) MySQL
5 3 (42.86%) Jython
5 3 (42.86%) Scrum
6 2 (28.57%) MVC

YUI
Co-occurring IT Skills in London 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 2 (28.57%) WebLogic
2 1 (14.29%) Apache
2 1 (14.29%) GlassFish
2 1 (14.29%) JBoss
2 1 (14.29%) Oracle Coherence
2 1 (14.29%) Oracle SOA Suite
2 1 (14.29%) Tomcat
2 1 (14.29%) WebLogic Integration
2 1 (14.29%) WebLogic Portal
2 1 (14.29%) WebSphere
2 1 (14.29%) WebSphere Application Server
2 1 (14.29%) WebSphere Process Server
Business Applications
1 1 (14.29%) Oracle BPM
Cloud Services
1 4 (57.14%) Amazon AWS
Communications & Networking
1 1 (14.29%) HTTP
Database & Business Intelligence
1 3 (42.86%) MongoDB
1 3 (42.86%) MySQL
2 2 (28.57%) Oracle Database
2 2 (28.57%) Relational Database
3 1 (14.29%) DB2
3 1 (14.29%) Oracle Database 11g
3 1 (14.29%) RDBMS
Development Applications
1 1 (14.29%) Git (software)
1 1 (14.29%) JUnit
1 1 (14.29%) Maven
1 1 (14.29%) Selenium
1 1 (14.29%) Subversion
General
1 5 (71.43%) Finance
2 1 (14.29%) Back Office
2 1 (14.29%) Manufacturing
2 1 (14.29%) Prime Brokerage
2 1 (14.29%) Retail
2 1 (14.29%) Telecoms
Job Titles
1 7 (100.00%) Developer
2 5 (71.43%) Java Developer
3 4 (57.14%) Senior Developer
3 4 (57.14%) Senior Java Developer
4 1 (14.29%) Angular Developer
4 1 (14.29%) JavaScript Developer
4 1 (14.29%) UI Developer
Libraries, Frameworks & Software Standards
1 7 (100.00%) HTML
2 6 (85.71%) CSS
2 6 (85.71%) jQuery
3 5 (71.43%) AngularJS
3 5 (71.43%) CSS3
3 5 (71.43%) HTML5
4 4 (57.14%) Web Services
5 3 (42.86%) Dojo
5 3 (42.86%) Grails
5 3 (42.86%) JRuby
5 3 (42.86%) RabbitMQ
6 2 (28.57%) Backbone.js
6 2 (28.57%) Hibernate
6 2 (28.57%) J2EE
6 2 (28.57%) JSP
6 2 (28.57%) REST
6 2 (28.57%) Servlets
6 2 (28.57%) SOAP
6 2 (28.57%) Spring
6 2 (28.57%) XML
Miscellaneous
1 4 (57.14%) Analytical Skills
2 1 (14.29%) Clustering
2 1 (14.29%) DataPower
2 1 (14.29%) Derivative
2 1 (14.29%) Mobile App
2 1 (14.29%) User Experience
Processes & Methodologies
1 6 (85.71%) Agile Software Development
2 4 (57.14%) Responsive Web Design
2 4 (57.14%) TDD
3 3 (42.86%) OO
3 3 (42.86%) Scrum
4 2 (28.57%) MVC
5 1 (14.29%) AOP
5 1 (14.29%) BDD
5 1 (14.29%) BPEL
5 1 (14.29%) Business Activity Monitoring
5 1 (14.29%) Continuous Integration
5 1 (14.29%) Functional Programming
5 1 (14.29%) OOA/OOD
5 1 (14.29%) OOP
5 1 (14.29%) SOA
5 1 (14.29%) Software Engineering
5 1 (14.29%) SOLID
5 1 (14.29%) UML
5 1 (14.29%) Web Design
5 1 (14.29%) Wireframes
Programming Languages
1 6 (85.71%) JavaScript
2 5 (71.43%) Java
3 3 (42.86%) Clojure
3 3 (42.86%) Groovy
3 3 (42.86%) Jython
3 3 (42.86%) Python
3 3 (42.86%) Scala
4 2 (28.57%) PL/SQL
4 2 (28.57%) SQL
5 1 (14.29%) Perl
Qualifications
1 1 (14.29%) Degree
Systems Management
1 3 (42.86%) Puppet
Vendors
1 2 (28.57%) Oracle
2 1 (14.29%) Google
2 1 (14.29%) IBM
2 1 (14.29%) Kony
2 1 (14.29%) Sybase
2 1 (14.29%) Yahoo!