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 3 months to 26 May 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)
London / Isleworth
3 months to
26 May 2017
Same period 2016 Same period 2015
Rank - - 4
Contract jobs citing JavaScript 0 0 6
As % of all contract IT jobs advertised in Isleworth - - 40.00%
As % of the Programming Languages category - - 50.00%
Number of daily rates quoted 0 0 0
Median daily rate - - -
UK excluding London median daily rate £375 £363 £349
% change year-on-year +3.44% +4.01%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £42.50 £32.20 £37.50
% change year-on-year +31.98% -14.13%  

JavaScript is in the programming language skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Isleworth with a requirement for programming language skills.

Contract Programming Language Skills
Isleworth
Contract job vacancies with a requirement for programming language skills 2 0 12
As % of all contract IT job vacancies advertised in Isleworth 50.00% - 80.00%
Number of daily rates quoted 0 0 1
Median daily rate - - £375
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £42.50 £37.50 £36.00
% change year-on-year +13.33% +4.16%  

JavaScript
Job Vacancy Trend in Isleworth

The job posting trend of jobs advertised in Isleworth citing JavaScript as a proportion of all contract or permanent IT jobs with a match in the Programming Languages category.

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