The following table provides summary statistics for permanent job vacancies advertised in Chiswick with a requirement for JavaScript skills. Included is a benchmarking guide to the salaries offered in vacancies that have cited JavaScript over the 3 months to 27 March 2017 with a comparison to the same period in the previous 2 years.

3 months to
27 Mar 2017
Same period 2016 Same period 2015
JavaScript (including ECMAScript)
London / Chiswick
Rank 25 24 14
Rank change year-on-year -1 -10  
Permanent jobs citing JavaScript 1 2 5
As % of all permanent IT jobs advertised in Chiswick 1.47% 2.90% 8.77%
As % of the Programming Languages category 2.22% 5.88% 17.24%
Number of salaries quoted 1 2 5
Median salary £35,000 £55,000 £37,500
Median salary % change year-on-year -36.36% +46.66%  
UK excluding London median salary £40,000 £40,000 £38,500
% change year-on-year - +3.89%  

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

Programming Language Skills
Chiswick
Permanent job vacancies with a requirement for programming language skills 45 34 29
As % of all permanent IT job vacancies advertised in Chiswick 66.18% 49.28% 50.88%
Number of salaries quoted 45 33 27
Median salary £52,500 £55,000 £40,000
Median salary % change year-on-year -4.54% +37.50%  
90% offered a salary of more than £41,500 £41,000 £35,000
10% offered a salary of more than £67,750 £48,000 £72,500
UK excluding London median salary £41,000 £40,500 £40,000
% change year-on-year +1.23% +1.25%  

JavaScript
Job Vacancy Trend in Chiswick

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

Job vacancy trend for JavaScript in Chiswick

JavaScript
Salary Trend in Chiswick

This chart provides the 3-month moving average for salaries quoted in permanent IT jobs citing JavaScript in Chiswick.

Salary trend for JavaScript in Chiswick

JavaScript
Top 30 Related IT Skills in Chiswick

For the 6 months to 27 March 2017, IT jobs citing JavaScript also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Chiswick region with a requirement for JavaScript.

1 2 (100.00%) Agile Software Development
2 1 (50.00%) Systems Analysis
2 1 (50.00%) Dynamics AX
2 1 (50.00%) Web Development
2 1 (50.00%) QA
2 1 (50.00%) Selenium
2 1 (50.00%) Use Case
2 1 (50.00%) User Acceptance Testing
2 1 (50.00%) Performance Testing
2 1 (50.00%) Web Testing
2 1 (50.00%) Time Management
2 1 (50.00%) Sitecore
2 1 (50.00%) Team Foundation Server
2 1 (50.00%) HP Quality Center
2 1 (50.00%) HTML5
2 1 (50.00%) SoapUI
2 1 (50.00%) REST
2 1 (50.00%) Test Strategy
2 1 (50.00%) Twitter
2 1 (50.00%) Jasmine
2 1 (50.00%) Twitter Bootstrap
2 1 (50.00%) Mobile App
2 1 (50.00%) Karma Test Runner
2 1 (50.00%) HTML5 Boilerplate
2 1 (50.00%) Test Planning
2 1 (50.00%) Translating Business Requirements
2 1 (50.00%) Issue Tracking
2 1 (50.00%) Cross-Browser Compatibility
2 1 (50.00%) Cross-Browser Development
2 1 (50.00%) C#

JavaScript
Top Related IT Skills in Chiswick 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 1 (50.00%) BizTalk Server
Applications
1 1 (50.00%) MS Excel
Business Applications
1 1 (50.00%) Dynamics AX
Development Applications
1 1 (50.00%) HP UFT
1 1 (50.00%) Jasmine
1 1 (50.00%) Karma Test Runner
1 1 (50.00%) Selenium
1 1 (50.00%) SoapUI
1 1 (50.00%) Team Foundation Server
1 1 (50.00%) TestDirector
1 1 (50.00%) Visual Studio
General
1 1 (50.00%) Advertising
1 1 (50.00%) Finance
Job Titles
1 1 (50.00%) Analyst
1 1 (50.00%) Developer
1 1 (50.00%) Java Developer
1 1 (50.00%) Junior
1 1 (50.00%) Junior Developer
1 1 (50.00%) Junior Java Developer
1 1 (50.00%) Service Analyst
1 1 (50.00%) Test Analyst
1 1 (50.00%) Web Analyst
1 1 (50.00%) Web Test Analyst
Libraries, Frameworks & Software Standards
1 1 (50.00%) CSS
1 1 (50.00%) HTML
1 1 (50.00%) HTML5
1 1 (50.00%) HTML5 Boilerplate
1 1 (50.00%) REST
1 1 (50.00%) SOAP
1 1 (50.00%) Twitter Bootstrap
1 1 (50.00%) Web Services
Miscellaneous
1 1 (50.00%) Client/Server
1 1 (50.00%) Mobile App
Processes & Methodologies
1 2 (100.00%) Agile Software Development
2 1 (50.00%) Cross-Browser Compatibility
2 1 (50.00%) Cross-Browser Development
2 1 (50.00%) E-Commerce
2 1 (50.00%) Issue Tracking
2 1 (50.00%) OO
2 1 (50.00%) Performance Testing
2 1 (50.00%) Regression Testing
2 1 (50.00%) Systems Analysis
2 1 (50.00%) Test Planning
2 1 (50.00%) Test Strategy
2 1 (50.00%) Time Management
2 1 (50.00%) Translating Business Requirements
2 1 (50.00%) Use Case
2 1 (50.00%) User Acceptance Testing
2 1 (50.00%) Web Development
2 1 (50.00%) Web Testing
Programming Languages
1 1 (50.00%) C#
1 1 (50.00%) Java
Quality Assurance & Compliance
1 1 (50.00%) QA
Systems Management
1 1 (50.00%) HP Quality Center
Vendors
1 1 (50.00%) Microsoft
1 1 (50.00%) Sitecore
1 1 (50.00%) Twitter