The following table provides summary statistics for contract job vacancies advertised in Chester 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 27 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)
Cheshire / Chester
3 months to
27 Jun 2017
Same period 2016 Same period 2015
Rank 12 19 25
Rank change year-on-year +7 +6  
Contract jobs citing JavaScript 15 24 10
As % of all contract IT jobs advertised in Chester 10.79% 10.81% 4.78%
As % of the Programming Languages category 22.39% 17.52% 12.82%
Number of daily rates quoted 14 22 7
Median daily rate £400 £381 £370
Median daily rate % change year-on-year +4.91% +3.04%  
90% offered a daily rate of more than £311 £289 £320
10% offered a daily rate of more than £463 £424 £400
UK excluding London median daily rate £375 £363 £350
% change year-on-year +3.44% +3.57%  
Number of hourly rates quoted 0 1 0
Median hourly rate - £20.78 -
UK excluding London median hourly rate £43.45 £37.50 £39.78
% change year-on-year +15.85% -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 Chester with a requirement for programming language skills.

Contract Programming Language Skills
Chester
Contract job vacancies with a requirement for programming language skills 67 137 78
As % of all contract IT job vacancies advertised in Chester 48.20% 61.71% 37.32%
Number of daily rates quoted 63 127 56
Median daily rate £450 £400 £401
Median daily rate % change year-on-year +12.50% -0.12%  
90% offered a daily rate of more than £326 £301 £346
10% offered a daily rate of more than £475 £500 £485
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 0 3 2
Median hourly rate - £21.00 £33.00
Median hourly rate % change year-on-year - -36.36%  
UK excluding London median hourly rate £42.50 £37.50 £37.00
% change year-on-year +13.33% +1.35%  

JavaScript
Job Vacancy Trend in Chester

The job posting trend of jobs advertised in Chester 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 Chester

JavaScript
Contractor Daily Rate Trend in Chester

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

Contractor daily rate trend for JavaScript in Chester

JavaScript
Contractor Daily Rate Histogram in Chester

The daily rate distribution of IT jobs citing JavaScript in Chester over the 3 months to 27 June 2017.

Contractor daily rate histogram for JavaScript in Chester

JavaScript
Contractor Hourly Rate Trend in Chester

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

Contractor hourly rate trend for JavaScript in Chester

For the 6 months to 27 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 Chester region with a requirement for JavaScript.

1 17 (70.83%) Agile Software Development
2 15 (62.50%) Java
3 12 (50.00%) Spring
4 10 (41.67%) Continuous Integration
4 10 (41.67%) Web Services
5 9 (37.50%) CSS
6 7 (29.17%) HTML
7 6 (25.00%) TDD
7 6 (25.00%) HTML5
8 5 (20.83%) CSS3
8 5 (20.83%) Git (software)
8 5 (20.83%) gulp
8 5 (20.83%) Twitter Bootstrap
8 5 (20.83%) React
8 5 (20.83%) MVC
8 5 (20.83%) jQuery
9 4 (16.67%) C#
9 4 (16.67%) Front End Development
9 4 (16.67%) RESTful
10 3 (12.50%) Sass
10 3 (12.50%) AngularJS
10 3 (12.50%) .NET
10 3 (12.50%) SQL Server
10 3 (12.50%) ASP.NET
11 2 (8.33%) OO
11 2 (8.33%) PHP
11 2 (8.33%) SQL
11 2 (8.33%) Microsoft
11 2 (8.33%) Unit Testing
11 2 (8.33%) Scrum

JavaScript
Co-occurring IT Skills in Chester 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 (8.33%) SharePoint
2 1 (4.17%) CMS
2 1 (4.17%) ExpressionEngine
2 1 (4.17%) SharePoint 2013
2 1 (4.17%) WordPress
Business Applications
1 1 (4.17%) Dynamics CRM
Cloud Services
1 1 (4.17%) Dynamics 365
1 1 (4.17%) Microsoft Azure
1 1 (4.17%) Office 365
1 1 (4.17%) Slack
Database & Business Intelligence
1 3 (12.50%) SQL Server
2 1 (4.17%) SQL Server 2012
Development Applications
1 5 (20.83%) Git (software)
1 5 (20.83%) gulp
2 2 (8.33%) Team Foundation Server
2 2 (8.33%) webpack
3 1 (4.17%) Grunt
3 1 (4.17%) JIRA
3 1 (4.17%) ProC
3 1 (4.17%) Selenium
3 1 (4.17%) SoapUI
3 1 (4.17%) WebDriver
General
1 2 (8.33%) Banking
1 2 (8.33%) Finance
2 1 (4.17%) Automotive
2 1 (4.17%) Back Office
2 1 (4.17%) Investment Banking
2 1 (4.17%) Legal
2 1 (4.17%) Marketing
Job Titles
1 23 (95.83%) Developer
2 13 (54.17%) Java Developer
3 10 (41.67%) Agile Developer
3 10 (41.67%) Agile Java Developer
4 8 (33.33%) JavaScript Developer
5 2 (8.33%) Front End Developer (Client-Side Developer)
5 2 (8.33%) Full Stack Developer
6 1 (4.17%) .NET Developer
6 1 (4.17%) Angular Developer
6 1 (4.17%) C# Developer
6 1 (4.17%) CRM Developer
6 1 (4.17%) Developer/Software Engineer
6 1 (4.17%) Dynamics CRM Developer
6 1 (4.17%) HTML CSS Developer
6 1 (4.17%) Java Engineer
6 1 (4.17%) Java Software Developer
6 1 (4.17%) Java Software Engineer
6 1 (4.17%) PHP Developer
6 1 (4.17%) QA Analyst
6 1 (4.17%) Senior JavaScript Developer
Libraries, Frameworks & Software Standards
1 12 (50.00%) Spring
2 10 (41.67%) Web Services
3 9 (37.50%) CSS
4 7 (29.17%) HTML
5 6 (25.00%) HTML5
6 5 (20.83%) CSS3
6 5 (20.83%) jQuery
6 5 (20.83%) React
6 5 (20.83%) Twitter Bootstrap
7 4 (16.67%) RESTful
8 3 (12.50%) .NET
8 3 (12.50%) AngularJS
8 3 (12.50%) ASP.NET
8 3 (12.50%) Sass
9 2 (8.33%) ASP.NET MVC
9 2 (8.33%) Laravel
10 1 (4.17%) ASP.NET Web API
10 1 (4.17%) J2EE
10 1 (4.17%) LAMP
10 1 (4.17%) SOAP
Miscellaneous
1 1 (4.17%) Analytical Skills
1 1 (4.17%) Greenfield Project
1 1 (4.17%) Linux Command Line
Operating Systems
1 1 (4.17%) Unix
Processes & Methodologies
1 17 (70.83%) Agile Software Development
2 10 (41.67%) Continuous Integration
3 6 (25.00%) TDD
4 5 (20.83%) MVC
5 4 (16.67%) Front End Development
6 2 (8.33%) OO
6 2 (8.33%) Scrum
6 2 (8.33%) Secure Coding
6 2 (8.33%) Software Engineering
6 2 (8.33%) Test Automation
6 2 (8.33%) Unit Testing
7 1 (4.17%) ATDD
7 1 (4.17%) BDD
7 1 (4.17%) Business Intelligence
7 1 (4.17%) CRM
7 1 (4.17%) Kanban
7 1 (4.17%) Pair Programming
7 1 (4.17%) Software Testing
7 1 (4.17%) Time Management
7 1 (4.17%) Web Development
Programming Languages
1 15 (62.50%) Java
2 4 (16.67%) C#
3 2 (8.33%) PHP
3 2 (8.33%) SQL
4 1 (4.17%) C
4 1 (4.17%) C++
4 1 (4.17%) PowerShell
4 1 (4.17%) Python
Quality Assurance & Compliance
1 1 (4.17%) QA
Vendors
1 2 (8.33%) Microsoft
2 1 (4.17%) Google
2 1 (4.17%) Twitter