The following table provides summary statistics for contract job vacancies advertised in Brentford 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 24 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.

JavaScript (including ECMAScript)
London / Brentford
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 10 11 20
Rank change year-on-year +1 +9  
Contract jobs citing JavaScript 4 3 1
As % of all contract IT jobs advertised in Brentford 12.12% 5.77% 1.06%
As % of the Programming Languages category 44.44% 37.50% 10.00%
Number of daily rates quoted 3 3 1
Median daily rate £385 £475 £400
Median daily rate % change year-on-year -18.94% +18.75%  
UK excluding London median daily rate £375 £363 £340
% change year-on-year +3.44% +6.61%  
Number of hourly rates quoted 0 0 0
Median hourly rate - - -
UK excluding London median hourly rate £43.39 £37.50 £39.78
% change year-on-year +15.70% -5.71%  

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 Brentford with a requirement for programming language skills.

Contract Programming Language Skills
Brentford
Contract job vacancies with a requirement for programming language skills 9 8 10
As % of all contract IT job vacancies advertised in Brentford 27.27% 15.38% 10.64%
Number of daily rates quoted 5 4 6
Median daily rate £385 £475 £400
Median daily rate % change year-on-year -18.94% +18.75%  
90% offered a daily rate of more than £369 £438 £390
10% offered a daily rate of more than £499 £475 £577
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 £36.50
% change year-on-year +13.33% +2.73%  

JavaScript
Job Vacancy Trend in Brentford

The job posting trend of jobs advertised in Brentford 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 Brentford

JavaScript
Contractor Daily Rate Trend in Brentford

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

Contractor daily rate trend for JavaScript in Brentford

JavaScript
Contractor Hourly Rate Trend in Brentford

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

Contractor hourly rate trend for JavaScript in Brentford

For the 6 months to 24 June 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 Brentford region with a requirement for JavaScript.

1 4 (66.67%) HTML
1 4 (66.67%) SAP
1 4 (66.67%) CSS
2 3 (50.00%) OO
2 3 (50.00%) jQuery
2 3 (50.00%) HTML5
3 2 (33.33%) Apple iOS
3 2 (33.33%) Front End Development
3 2 (33.33%) SAP Fiori
3 2 (33.33%) SAPUI5
3 2 (33.33%) Prototyping
3 2 (33.33%) SAP Portal
3 2 (33.33%) Microsoft Azure
3 2 (33.33%) Software Architecture
3 2 (33.33%) Data Management
3 2 (33.33%) Degree
3 2 (33.33%) Computer Science
3 2 (33.33%) Spanish Language
3 2 (33.33%) REST
3 2 (33.33%) AngularJS
3 2 (33.33%) Analytics
3 2 (33.33%) iOS Development
3 2 (33.33%) Service Management
3 2 (33.33%) Service Delivery
3 2 (33.33%) Management Information System
3 2 (33.33%) Workflow
3 2 (33.33%) Web Dynpro
3 2 (33.33%) ERP
3 2 (33.33%) Data Modelling
3 2 (33.33%) SOA

JavaScript
Co-occurring IT Skills in Brentford 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%) NetWeaver
1 2 (33.33%) SAP Portal
Cloud Services
1 2 (33.33%) Microsoft Azure
General
1 2 (33.33%) Spanish Language
Job Titles
1 3 (50.00%) Developer
2 2 (33.33%) Applications Architect
2 2 (33.33%) Architect
3 1 (16.67%) Angular Developer
3 1 (16.67%) Consultant
3 1 (16.67%) Front End Developer (Client-Side Developer)
3 1 (16.67%) JavaScript Developer
3 1 (16.67%) Node.js Developer
3 1 (16.67%) SAP Consultant
3 1 (16.67%) SAP Developer
3 1 (16.67%) SAPUI5 Consultant
Libraries, Frameworks & Software Standards
1 4 (66.67%) CSS
1 4 (66.67%) HTML
2 3 (50.00%) HTML5
2 3 (50.00%) jQuery
3 2 (33.33%) AngularJS
3 2 (33.33%) REST
3 2 (33.33%) SAP Fiori
3 2 (33.33%) SAPUI5
3 2 (33.33%) SOAP
3 2 (33.33%) Web Dynpro
4 1 (16.67%) Angular 2
4 1 (16.67%) CSS3
4 1 (16.67%) LESS
4 1 (16.67%) Node.js
4 1 (16.67%) React
Miscellaneous
1 2 (33.33%) Computer Science
1 2 (33.33%) Management Information System
2 1 (16.67%) Digital Media
Operating Systems
1 2 (33.33%) Apple iOS
Processes & Methodologies
1 3 (50.00%) OO
2 2 (33.33%) Analytics
2 2 (33.33%) Data Management
2 2 (33.33%) Data Modelling
2 2 (33.33%) ERP
2 2 (33.33%) Front End Development
2 2 (33.33%) iOS Development
2 2 (33.33%) Project Management
2 2 (33.33%) Prototyping
2 2 (33.33%) Service Delivery
2 2 (33.33%) Service Management
2 2 (33.33%) SOA
2 2 (33.33%) Software Architecture
2 2 (33.33%) Workflow
3 1 (16.67%) Agile Software Development
3 1 (16.67%) Data Protection
3 1 (16.67%) Responsive Web Design
Qualifications
1 2 (33.33%) Degree
Vendors
1 4 (66.67%) SAP