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

JavaScript (including ECMAScript)
South East / Middlesex
3 months to
28 Mar 2017
Same period 2016 Same period 2015
Rank 6 8 11
Rank change year-on-year +2 +3  
Contract jobs citing JavaScript 15 16 12
As % of all contract IT jobs advertised in Middlesex 11.81% 10.19% 7.45%
As % of the Programming Languages category 42.86% 35.56% 21.43%
Number of daily rates quoted 5 12 9
Median daily rate £350 £406 £350
Median daily rate % change year-on-year -13.84% +16.07%  
90% offered a daily rate of more than £344 £350 £274
10% offered a daily rate of more than £468 £425 £415
UK excluding London median daily rate £375 £350 £350
% change year-on-year +7.14% -  
Number of hourly rates quoted 0 1 0
Median hourly rate - £48.50 -
UK excluding London median hourly rate £42.50 £38.00 £33.75
% change year-on-year +11.84% +12.59%  

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 Middlesex with a requirement for programming language skills.

Contract Programming Language Skills
Middlesex
Contract job vacancies with a requirement for programming language skills 35 45 56
As % of all contract IT job vacancies advertised in Middlesex 27.56% 28.66% 34.78%
Number of daily rates quoted 18 26 33
Median daily rate £350 £388 £350
Median daily rate % change year-on-year -9.67% +10.71%  
90% offered a daily rate of more than £213 £330 £300
10% offered a daily rate of more than £423 £425 £430
UK excluding London median daily rate £388 £375 £350
% change year-on-year +3.33% +7.14%  
Number of hourly rates quoted 0 8 0
Median hourly rate - £44.00 -
UK excluding London median hourly rate £41.50 £40.00 £36.00
% change year-on-year +3.75% +11.11%  

JavaScript
Job Vacancy Trend in Middlesex

The job posting trend of jobs advertised in Middlesex 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 Middlesex

JavaScript
Contractor Daily Rate Trend in Middlesex

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

Contractor daily rate trend for JavaScript in Middlesex

JavaScript
Contractor Daily Rate Histogram in Middlesex

The daily rate distribution of IT jobs citing JavaScript in Middlesex over the 3 months to 28 March 2017.

Contractor daily rate histogram for JavaScript in Middlesex

JavaScript
Contractor Hourly Rate Trend in Middlesex

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

Contractor hourly rate trend for JavaScript in Middlesex

For the 6 months to 28 March 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 Middlesex region with a requirement for JavaScript.

1 35 (92.11%) HTML
1 35 (92.11%) CSS
2 20 (52.63%) HTML5
3 19 (50.00%) Agile Software Development
4 18 (47.37%) Web Services
5 17 (44.74%) Java
6 16 (42.11%) CSS3
7 15 (39.47%) MVC
8 14 (36.84%) SQL Server
9 13 (34.21%) MySQL
10 11 (28.95%) Oracle
10 11 (28.95%) Spring
10 11 (28.95%) Java EE
10 11 (28.95%) Continuous Integration
10 11 (28.95%) Mule
10 11 (28.95%) Mule ESB
11 10 (26.32%) AngularJS
12 9 (23.68%) User Experience
12 9 (23.68%) Security Cleared
12 9 (23.68%) Finance
12 9 (23.68%) Legal
12 9 (23.68%) Prototyping
13 8 (21.05%) OO
13 8 (21.05%) jQuery
13 8 (21.05%) Analytics
14 6 (15.79%) Usability Testing
14 6 (15.79%) Google Analytics
14 6 (15.79%) Axure RP
14 6 (15.79%) Information Architecture
14 6 (15.79%) ClickTale

JavaScript
Co-occurring 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 11 (28.95%) Mule
1 11 (28.95%) Mule ESB
2 4 (10.53%) CMS
3 3 (7.89%) Adobe Experience Manager
4 1 (2.63%) Apache
4 1 (2.63%) IIS
4 1 (2.63%) SharePoint
4 1 (2.63%) Tomcat
Applications
1 6 (15.79%) Photoshop
Cloud Services
1 6 (15.79%) Adobe Analytics
1 6 (15.79%) Google Analytics
2 3 (7.89%) SaaS
3 2 (5.26%) Amazon AWS
4 1 (2.63%) GitHub
4 1 (2.63%) Office 365
Communications & Networking
1 2 (5.26%) HTTP
2 1 (2.63%) Intranet
Database & Business Intelligence
1 14 (36.84%) SQL Server
2 13 (34.21%) MySQL
3 2 (5.26%) NoSQL
3 2 (5.26%) SQL Server 2005
4 1 (2.63%) Microsoft Analysis Services
4 1 (2.63%) SQL Server 2012
4 1 (2.63%) SQL Server Analysis Services
4 1 (2.63%) SQL Server Integration Services
4 1 (2.63%) SQL Server Reporting Services
Development Applications
1 6 (15.79%) Axure RP
2 2 (5.26%) Bower
2 2 (5.26%) Git (software)
2 2 (5.26%) Grunt
2 2 (5.26%) gulp
2 2 (5.26%) webpack
3 1 (2.63%) Bitbucket
3 1 (2.63%) Eclipse
3 1 (2.63%) Team Foundation Server
3 1 (2.63%) Visual Studio
General
1 9 (23.68%) Finance
1 9 (23.68%) Legal
2 2 (5.26%) Telecoms
3 1 (2.63%) Back Office
3 1 (2.63%) Local Government
Job Titles
1 32 (84.21%) Developer
2 11 (28.95%) Java Developer
3 7 (18.42%) UI Developer
4 6 (15.79%) Designer
4 6 (15.79%) Front End Developer (Client-Side Developer)
4 6 (15.79%) JavaScript Developer
4 6 (15.79%) UX Designer
5 5 (13.16%) UI Designer
5 5 (13.16%) UI/UX Designer
6 3 (7.89%) .NET Developer
6 3 (7.89%) Front End Java Developer (Client-Side Java Developer)
6 3 (7.89%) Web Developer
7 2 (5.26%) Angular Developer
7 2 (5.26%) C# .NET Developer
7 2 (5.26%) C# Developer
7 2 (5.26%) Senior Developer
7 2 (5.26%) Senior Front-End Developer
7 2 (5.26%) Senior JavaScript Developer
7 2 (5.26%) Senior UI Developer
8 1 (2.63%) C# VB.NET Developer
Libraries, Frameworks & Software Standards
1 35 (92.11%) CSS
1 35 (92.11%) HTML
2 20 (52.63%) HTML5
3 18 (47.37%) Web Services
4 16 (42.11%) CSS3
5 11 (28.95%) Java EE
5 11 (28.95%) Spring
6 10 (26.32%) AngularJS
7 8 (21.05%) jQuery
8 5 (13.16%) .NET
8 5 (13.16%) JSON
8 5 (13.16%) React
8 5 (13.16%) Twitter Bootstrap
8 5 (13.16%) XML
9 4 (10.53%) ASP.NET
10 3 (7.89%) Node.js
10 3 (7.89%) REST
10 3 (7.89%) Struts
11 2 (5.26%) Sass
11 2 (5.26%) Semantic HTML
Miscellaneous
1 9 (23.68%) User Experience
2 2 (5.26%) Minimum Viable Product
3 1 (2.63%) Clustering
3 1 (2.63%) CMDB
3 1 (2.63%) Smart Meter
Operating Systems
1 4 (10.53%) Windows
2 2 (5.26%) Unix
3 1 (2.63%) Solaris
3 1 (2.63%) Windows Server
Processes & Methodologies
1 19 (50.00%) Agile Software Development
2 15 (39.47%) MVC
3 11 (28.95%) Continuous Integration
4 9 (23.68%) Prototyping
5 8 (21.05%) Analytics
5 8 (21.05%) OO
6 6 (15.79%) Data Analytics
6 6 (15.79%) Information Architecture
6 6 (15.79%) Usability Testing
6 6 (15.79%) Wireframes
7 4 (10.53%) Front End Development
7 4 (10.53%) Responsive Web Design
7 4 (10.53%) Web Development
8 3 (7.89%) Continuous Delivery
8 3 (7.89%) OOP
8 3 (7.89%) Open Source
8 3 (7.89%) Scrum
8 3 (7.89%) TDD
8 3 (7.89%) Unit Testing
9 2 (5.26%) API Design
Programming Languages
1 17 (44.74%) Java
2 4 (10.53%) C#
3 3 (7.89%) Ruby
3 3 (7.89%) SQL
3 3 (7.89%) T-SQL
4 2 (5.26%) UniBasic
4 2 (5.26%) VB.NET
5 1 (2.63%) PHP
5 1 (2.63%) PHP 5
Qualifications
1 9 (23.68%) Security Cleared
Quality Assurance & Compliance
1 1 (2.63%) Data Quality
1 1 (2.63%) WCAG
System Software
1 1 (2.63%) Active Directory
Systems Management
1 1 (2.63%) Microsoft Clustering
Vendors
1 11 (28.95%) Oracle
2 6 (15.79%) ClickTale
3 4 (10.53%) ServiceNow
4 3 (7.89%) IBM
5 2 (5.26%) Redback
6 1 (2.63%) Sun