The median contractor rate for a JavaScript Developer was £460 per day in advertised job vacancies in Middlesex during the 3 months to 23 March 2017.

The first table below provides contractor rate benchmarking and summary statistics including a comparison to 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.

3 months to
23 Mar 2017
Same period 2016 Same period 2015
JavaScript Developer
South East / Middlesex
Rank 16 15 17
Rank change year-on-year -1 +2  
Contract jobs requiring a JavaScript Developer 4 7 5
As % of all contract IT jobs advertised in Middlesex 3.05% 4.40% 3.16%
As % of the Job Titles category 3.25% 4.58% 3.36%
Number of daily rates quoted 2 7 4
Median daily rate £460 £400 £400
Median daily rate % change year-on-year +15.00% -  
90% offered a daily rate of more than £428 £374 £365
10% offered a daily rate of more than £492 £413 £409
UK excluding London median daily rate £378 £350 £375
% change year-on-year +7.85% -6.66%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £42.50 £22.54 -
% change year-on-year +88.55% -  

The next table is for comparison with the above and includes summary statistics for all job roles in contract job vacancies advertised in Middlesex. Most job vacancies include a discernible job title. As such, the figures in the first row provide an indication of the number of contract jobs in our overall sample.

Contract IT Job Roles
Middlesex
Contract job vacancies with a job title containing a recognized job role 123 153 149
As % of all contract IT job vacancies advertised in Middlesex 93.89% 96.23% 94.30%
Number of daily rates quoted 76 103 90
Median daily rate £420 £400 £385
Median daily rate % change year-on-year +5.00% +3.89%  
90% offered a daily rate of more than £294 £230 £270
10% offered a daily rate of more than £560 £543 £475
UK excluding London median daily rate £400 £388 £375
% change year-on-year +3.22% +3.33%  
Number of hourly rates quoted 0 11 3
Median hourly rate - £44.00 £22.50
Median hourly rate % change year-on-year - +95.55%  
UK excluding London median hourly rate £17.50 £20.00 £17.00
% change year-on-year -12.50% +17.64%  

JavaScript Developer
Job Vacancy Trend in Middlesex

The job posting trend of jobs advertised in Middlesex that featured JavaScript Developer in the job title.

Job vacancy trend for JavaScript Developer in Middlesex

JavaScript Developer
Contractor Daily Rate Trend in Middlesex

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

Contractor daily rate trend for JavaScript Developer in Middlesex

JavaScript Developer
Contractor Hourly Rate Trend in Middlesex

This chart provides the 3-month moving average for hourly rates quoted in IT contractor jobs citing JavaScript Developer in Middlesex.

Contractor hourly rate trend for JavaScript Developer in Middlesex

JavaScript Developer Skill Set
Top 30 Related IT Skills in Middlesex

For the 6 months to 23 March 2017, JavaScript Developer contract jobs required the following IT skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Middlesex region featuring JavaScript Developer in the job title.

1 6 (100.00%) JavaScript
1 6 (100.00%) AngularJS
2 5 (83.33%) HTML5
2 5 (83.33%) HTML
2 5 (83.33%) CSS3
2 5 (83.33%) CSS
3 4 (66.67%) OO
3 4 (66.67%) Agile Software Development
4 3 (50.00%) React
4 3 (50.00%) Front End Development
5 2 (33.33%) Minimum Viable Product
5 2 (33.33%) Continuous Delivery
5 2 (33.33%) Twitter Bootstrap
5 2 (33.33%) ServiceNow
5 2 (33.33%) Responsive Web Design
5 2 (33.33%) Sass
5 2 (33.33%) Node.js
5 2 (33.33%) TDD
5 2 (33.33%) Telecoms
5 2 (33.33%) CMS
5 2 (33.33%) Open Source
5 2 (33.33%) SaaS
6 1 (16.67%) Smart Meter
6 1 (16.67%) RESTful
6 1 (16.67%) Ruby
6 1 (16.67%) Ruby on Rails
6 1 (16.67%) JSON
6 1 (16.67%) BDD
6 1 (16.67%) Ember.js
6 1 (16.67%) Backbone.js

JavaScript Developer Skill Set
Top Related IT Skills in Middlesex 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 (33.33%) CMS
Cloud Services
1 2 (33.33%) SaaS
General
1 2 (33.33%) Telecoms
Libraries, Frameworks & Software Standards
1 6 (100.00%) AngularJS
2 5 (83.33%) CSS
2 5 (83.33%) CSS3
2 5 (83.33%) HTML
2 5 (83.33%) HTML5
3 3 (50.00%) React
4 2 (33.33%) Node.js
4 2 (33.33%) Sass
4 2 (33.33%) Twitter Bootstrap
5 1 (16.67%) Backbone.js
5 1 (16.67%) Ember.js
5 1 (16.67%) JSON
5 1 (16.67%) KnockoutJS
5 1 (16.67%) React Native
5 1 (16.67%) RESTful
5 1 (16.67%) Ruby on Rails
Miscellaneous
1 2 (33.33%) Minimum Viable Product
2 1 (16.67%) Smart Meter
Processes & Methodologies
1 4 (66.67%) Agile Software Development
1 4 (66.67%) OO
2 3 (50.00%) Front End Development
3 2 (33.33%) Continuous Delivery
3 2 (33.33%) Open Source
3 2 (33.33%) Responsive Web Design
3 2 (33.33%) TDD
4 1 (16.67%) BDD
Programming Languages
1 6 (100.00%) JavaScript
2 1 (16.67%) Ruby
Vendors
1 2 (33.33%) ServiceNow