Period
to 22 November 2017

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 6 months to 22 November 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
6 months to
22 Nov 2017
Same period 2016 Same period 2015
Rank 4 3 11
Rank change year-on-year -1 +8 +2
Contract jobs citing JavaScript 38 71 31
As % of all contract IT jobs advertised in Middlesex 14.45% 19.89% 8.91%
As % of the Programming Languages category 48.72% 50.35% 27.68%
Number of daily rates quoted 37 49 22
Middlesex median daily rate £450 £438 £333
Median daily rate % change year-on-year +2.86% +31.58% -5.00%
10th Percentile £300 £352 £263
90th Percentile £503 £528 £436
South East median daily rate £400 £375 £375
% change year-on-year +6.67% - +7.14%
Number of hourly rates quoted 0 0 0
Middlesex median hourly rate - - -
South East median hourly rate £45.00 £46.00 £36.00
% change year-on-year -2.17% +27.78% +10.77%

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 Middlesex with a requirement for coding skills.

All Programming Languages
Middlesex
Contract vacancies with a requirement for coding skills 78 141 112
As % of all contract IT jobs advertised in Middlesex 29.66% 39.50% 32.18%
Number of daily rates quoted 60 85 47
Middlesex median daily rate £425 £400 £350
Median daily rate % change year-on-year +6.25% +14.29% -
10th Percentile £300 £302 £263
90th Percentile £503 £528 £438
South East median daily rate £413 £400 £375
% change year-on-year +3.13% +6.67% +7.14%
Number of hourly rates quoted 0 3 11
Middlesex median hourly rate - £40.00 £35.00
Median hourly rate % change year-on-year - +14.29% -12.50%
South East median hourly rate £45.00 £40.00 £37.50
% change year-on-year +12.50% +6.67% +7.14%

JavaScript
Job Vacancy Trend in Middlesex

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

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 6 months to 22 November 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 22 November 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 31 (81.58%) HTML
2 29 (76.32%) CSS
3 18 (47.37%) AngularJS
4 16 (42.11%) Agile Software Development
5 12 (31.58%) OO
6 11 (28.95%) PHP
6 11 (28.95%) jQuery
7 10 (26.32%) React
7 10 (26.32%) Front End Development
8 8 (21.05%) XHTML
9 7 (18.42%) User Experience
9 7 (18.42%) Node.js
10 6 (15.79%) HTML5
10 6 (15.79%) TDD
10 6 (15.79%) Retail
11 5 (13.16%) SQL
12 4 (10.53%) Telecoms
12 4 (10.53%) Web Development
13 3 (7.89%) BDD
13 3 (7.89%) Git (software)
13 3 (7.89%) Test Automation
13 3 (7.89%) Jasmine
13 3 (7.89%) Analytics
13 3 (7.89%) CSS3
13 3 (7.89%) MVC
13 3 (7.89%) MySQL
14 2 (5.26%) Java
14 2 (5.26%) C#
14 2 (5.26%) .NET
14 2 (5.26%) Linux

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:

Business Applications
1 1 (2.63%) Magento
1 1 (2.63%) Oracle Financials
Cloud Services
1 1 (2.63%) Amazon AWS
1 1 (2.63%) AWS Lambda
1 1 (2.63%) Serverless
Communications & Networking
1 2 (5.26%) Internet
Database & Business Intelligence
1 3 (7.89%) MySQL
2 2 (5.26%) MongoDB
3 1 (2.63%) GIS
3 1 (2.63%) Hadoop
Development Applications
1 3 (7.89%) Git (software)
1 3 (7.89%) Jasmine
2 2 (5.26%) Karma Test Runner
2 2 (5.26%) Mocha
3 1 (2.63%) Appium
3 1 (2.63%) Cucumber
3 1 (2.63%) Gradle
3 1 (2.63%) Hudson
3 1 (2.63%) Jenkins
3 1 (2.63%) JIRA
3 1 (2.63%) WebDriver
General
1 6 (15.79%) Retail
2 4 (10.53%) Telecoms
3 2 (5.26%) Marketing
4 1 (2.63%) Finance
Job Titles
1 35 (92.11%) Developer
2 27 (71.05%) JavaScript Developer
3 18 (47.37%) Front End Developer (Client-Side Developer)
4 12 (31.58%) UI Developer
5 8 (21.05%) Angular Developer
6 6 (15.79%) HTML CSS Developer
6 6 (15.79%) HTML Developer
6 6 (15.79%) PHP Developer
7 4 (10.53%) JavaScript Engineer
8 3 (7.89%) Front End Web Developer (Client-Side Developer)
8 3 (7.89%) UI/UX Developer
8 3 (7.89%) UX Developer
8 3 (7.89%) Web Developer
9 2 (5.26%) Applications Developer
9 2 (5.26%) Node.js Developer
9 2 (5.26%) PHP Web Developer
9 2 (5.26%) Senior Developer
10 1 (2.63%) AWS Developer
10 1 (2.63%) Magento Developer
10 1 (2.63%) Senior Salesforce Developer
Libraries, Frameworks & Software Standards
1 31 (81.58%) HTML
2 29 (76.32%) CSS
3 18 (47.37%) AngularJS
4 11 (28.95%) jQuery
5 10 (26.32%) React
6 8 (21.05%) XHTML
7 7 (18.42%) Node.js
8 6 (15.79%) HTML5
9 3 (7.89%) CSS3
10 2 (5.26%) .NET
10 2 (5.26%) Ajax
10 2 (5.26%) Angular 2
10 2 (5.26%) Laravel
11 1 (2.63%) DHTMLX
11 1 (2.63%) DOM
11 1 (2.63%) Meteor
11 1 (2.63%) spray
11 1 (2.63%) Spring Boot
11 1 (2.63%) Web Services
11 1 (2.63%) XML
Miscellaneous
1 7 (18.42%) User Experience
2 1 (2.63%) Analytical Skills
2 1 (2.63%) Animation
2 1 (2.63%) IPTV
2 1 (2.63%) Linux Command Line
2 1 (2.63%) Mobile App
Operating Systems
1 2 (5.26%) Linux
2 1 (2.63%) Unix
Processes & Methodologies
1 16 (42.11%) Agile Software Development
2 12 (31.58%) OO
3 10 (26.32%) Front End Development
4 6 (15.79%) TDD
5 4 (10.53%) Web Development
6 3 (7.89%) Analytics
6 3 (7.89%) BDD
6 3 (7.89%) MVC
6 3 (7.89%) Test Automation
7 2 (5.26%) Code Coverage
7 2 (5.26%) Project Management
7 2 (5.26%) Unit Testing
7 2 (5.26%) Web Analytics
8 1 (2.63%) Continuous Improvement
8 1 (2.63%) Continuous Integration
8 1 (2.63%) Data Protection
8 1 (2.63%) Don't repeat yourself (DRY)
8 1 (2.63%) High Availability
8 1 (2.63%) Responsive Web Design
8 1 (2.63%) User Stories
Programming Languages
1 11 (28.95%) PHP
2 5 (13.16%) SQL
3 2 (5.26%) C#
3 2 (5.26%) Java
4 1 (2.63%) ActionScript
4 1 (2.63%) C++
4 1 (2.63%) ES6
4 1 (2.63%) PowerShell
4 1 (2.63%) Python
4 1 (2.63%) Ruby
4 1 (2.63%) Scala
Qualifications
1 2 (5.26%) Degree
Vendors
1 1 (2.63%) Capita
1 1 (2.63%) Civica
1 1 (2.63%) Oracle
1 1 (2.63%) Salesforce.com
1 1 (2.63%) Zend