Period
to 24 October 2017

The following table provides summary statistics for contract job vacancies advertised in Isleworth with a requirement for JavaScript skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JavaScript over the 6 months to 24 October 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.

JavaScript (including ECMAScript)
Hounslow > Isleworth
6 months to
24 Oct 2017
Same period 2016 Same period 2015
Rank 14 - 2
Rank change year-on-year - +2 0
Contract jobs citing JavaScript 7 0 3
As % of all contract IT jobs advertised in Isleworth 19.44% - 25.00%
As % of the Programming Languages category 25.93% - 75.00%
Number of daily rates quoted 7 0 1
Isleworth median daily rate £525 - £325
10th Percentile £391 - £313
90th Percentile £553 - £338
Hounslow median daily rate £450 £450 £388
% change year-on-year - +16.13% +4.73%
Number of hourly rates quoted 0 0 0
Isleworth median hourly rate - - -
Hounslow median hourly rate - £55.00 -

JavaScript is in the Programming Languages category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Isleworth with a requirement for coding skills.

All Programming Languages
Isleworth
Contract vacancies with a requirement for coding skills 27 4 4
As % of all contract IT jobs advertised in Isleworth 75.00% 80.00% 33.33%
Number of daily rates quoted 27 3 2
Isleworth median daily rate £525 £450 £350
Median daily rate % change year-on-year +16.67% +28.57% -7.28%
10th Percentile £393 £450 £318
90th Percentile £579 £502 £383
Hounslow median daily rate £460 £450 £390
% change year-on-year +2.22% +15.38% -7.14%
Number of hourly rates quoted 0 0 0
Isleworth median hourly rate - - -
Hounslow median hourly rate - £50.00 £26.21
% change year-on-year - +90.77% -18.73%

JavaScript
Job Vacancy Trend in Isleworth

Job postings citing JavaScript as a percentage of all IT jobs advertised in Isleworth.

Job vacancy trend for JavaScript in Isleworth

JavaScript
Contractor Daily Rate Trend in Isleworth

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

Contractor daily rate trend for JavaScript in Isleworth

JavaScript
Contractor Daily Rate Histogram in Isleworth

The daily rate distribution of IT jobs citing JavaScript in Isleworth over the 6 months to 24 October 2017.

Contractor daily rate histogram for JavaScript in Isleworth

For the 6 months to 24 October 2017, IT contractor jobs citing JavaScript 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 Isleworth region with a requirement for JavaScript.

1 7 (100.00%) HTML
1 7 (100.00%) Agile Software Development
1 7 (100.00%) Git (software)
1 7 (100.00%) CSS
2 6 (85.71%) HTML5
2 6 (85.71%) BDD
2 6 (85.71%) TDD
2 6 (85.71%) Pair Programming
2 6 (85.71%) CSS3
2 6 (85.71%) Continuous Improvement
3 5 (71.43%) Continuous Integration
4 4 (57.14%) Degree
4 4 (57.14%) Web Services
4 4 (57.14%) RESTful
4 4 (57.14%) High Availability
5 3 (42.86%) Redux
5 3 (42.86%) User Stories
5 3 (42.86%) Front End Development
5 3 (42.86%) Node.js
5 3 (42.86%) Analytical Skills
5 3 (42.86%) React
5 3 (42.86%) Continuous Delivery
5 3 (42.86%) MVC
6 2 (28.57%) AngularJS
6 2 (28.57%) Jasmine
7 1 (14.29%) Sass
7 1 (14.29%) LESS
7 1 (14.29%) Ember.js
7 1 (14.29%) Backbone.js
7 1 (14.29%) Gradle

JavaScript
Co-occurring IT Skills in Isleworth 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%) CMS
1 1 (14.29%) Drupal
1 1 (14.29%) Joomla!
1 1 (14.29%) WordPress
Database & Business Intelligence
1 1 (14.29%) MySQL
Development Applications
1 7 (100.00%) Git (software)
2 2 (28.57%) Jasmine
3 1 (14.29%) Gradle
3 1 (14.29%) Hudson
3 1 (14.29%) Jenkins
Job Titles
1 7 (100.00%) Developer
2 2 (28.57%) Front End Developer (Client-Side Developer)
3 1 (14.29%) HTML CSS Developer
3 1 (14.29%) HTML Developer
3 1 (14.29%) JavaScript Developer
3 1 (14.29%) MySQL Developer
3 1 (14.29%) Scala Developer
3 1 (14.29%) UI Developer
Libraries, Frameworks & Software Standards
1 7 (100.00%) CSS
1 7 (100.00%) HTML
2 6 (85.71%) CSS3
2 6 (85.71%) HTML5
3 4 (57.14%) RESTful
3 4 (57.14%) Web Services
4 3 (42.86%) Node.js
4 3 (42.86%) React
4 3 (42.86%) Redux
5 2 (28.57%) AngularJS
6 1 (14.29%) Backbone.js
6 1 (14.29%) Ember.js
6 1 (14.29%) Hibernate
6 1 (14.29%) LESS
6 1 (14.29%) Play Framework
6 1 (14.29%) Sass
6 1 (14.29%) spray
6 1 (14.29%) Spring
6 1 (14.29%) Spring Boot
6 1 (14.29%) Twitter Bootstrap
Miscellaneous
1 3 (42.86%) Analytical Skills
Operating Systems
1 1 (14.29%) Linux
Processes & Methodologies
1 7 (100.00%) Agile Software Development
2 6 (85.71%) BDD
2 6 (85.71%) Continuous Improvement
2 6 (85.71%) Pair Programming
2 6 (85.71%) TDD
3 5 (71.43%) Continuous Integration
4 4 (57.14%) High Availability
5 3 (42.86%) Continuous Delivery
5 3 (42.86%) Front End Development
5 3 (42.86%) MVC
5 3 (42.86%) User Stories
6 1 (14.29%) Acceptance Criteria
6 1 (14.29%) Content Management
6 1 (14.29%) Cross-Browser Development
6 1 (14.29%) Open Source
6 1 (14.29%) Release Management
6 1 (14.29%) Scrum
6 1 (14.29%) Web Development
Programming Languages
1 1 (14.29%) Java
1 1 (14.29%) Scala
1 1 (14.29%) SQL
Qualifications
1 4 (57.14%) Degree