The following table provides summary statistics for permanent job vacancies advertised in Westminster 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 30 March 2017 with a comparison to the same period in the previous 2 years.

JavaScript (including ECMAScript)
London / Westminster
3 months to
30 Mar 2017
Same period 2016 Same period 2015
Rank 10 5 5
Rank change year-on-year -5 0  
Permanent jobs citing JavaScript 12 6 7
As % of all permanent IT jobs advertised in Westminster 17.65% 21.43% 24.14%
As % of the Programming Languages category 31.58% 46.15% 33.33%
Number of salaries quoted 12 5 7
Median salary £85,000 £75,000 £20,500
Median salary % change year-on-year +13.33% +265.85%  
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 Westminster with a requirement for programming language skills.

Programming Language Skills
Westminster
Permanent job vacancies with a requirement for programming language skills 38 13 21
As % of all permanent IT job vacancies advertised in Westminster 55.88% 46.43% 72.41%
Number of salaries quoted 30 12 11
Median salary £85,000 £55,000 £40,000
Median salary % change year-on-year +54.54% +37.50%  
UK excluding London median salary £41,000 £41,000 £40,000
% change year-on-year - +2.50%  

JavaScript
Job Vacancy Trend in Westminster

The job posting trend of jobs advertised in Westminster 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 Westminster

JavaScript
Salary Trend in Westminster

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

Salary trend for JavaScript in Westminster

JavaScript
Salary Histogram in Westminster

The salary distribution of IT jobs citing JavaScript in Westminster over the 3 months to 30 March 2017.

Salary histogram for JavaScript in Westminster

For the 6 months to 30 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 Westminster region with a requirement for JavaScript.

1 11 (84.62%) Agile Software Development
2 10 (76.92%) Amazon AWS
2 10 (76.92%) Windows
3 8 (61.54%) Java
4 7 (53.85%) UML
4 7 (53.85%) Python
4 7 (53.85%) SOA
4 7 (53.85%) Streaming Video
4 7 (53.85%) Objective-C
4 7 (53.85%) SaaS
4 7 (53.85%) PaaS
4 7 (53.85%) Waterfall
4 7 (53.85%) Android
4 7 (53.85%) Apple iOS
4 7 (53.85%) IaaS
4 7 (53.85%) Mobile App
4 7 (53.85%) Windows Phone
4 7 (53.85%) Enterprise Software
4 7 (53.85%) Xbox
4 7 (53.85%) PlayStation
4 7 (53.85%) Virtual Private Cloud
5 5 (38.46%) .NET
6 4 (30.77%) Microsoft
7 3 (23.08%) PostgreSQL
7 3 (23.08%) Scrum
7 3 (23.08%) SQL Server
7 3 (23.08%) Web Services
7 3 (23.08%) Linux
7 3 (23.08%) DevOps
7 3 (23.08%) Mentoring

JavaScript
Co-occurring IT Skills in Westminster 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 3 (23.08%) Drupal
1 3 (23.08%) GeoServer
Cloud Services
1 10 (76.92%) Amazon AWS
2 7 (53.85%) IaaS
2 7 (53.85%) PaaS
2 7 (53.85%) SaaS
2 7 (53.85%) Virtual Private Cloud
3 1 (7.69%) G Suite
Database & Business Intelligence
1 3 (23.08%) PostgreSQL
1 3 (23.08%) SQL Server
Development Applications
1 1 (7.69%) Jasmine
1 1 (7.69%) JBehave
1 1 (7.69%) Protractor
1 1 (7.69%) Selenium
1 1 (7.69%) Team Foundation Server
1 1 (7.69%) WebDriver
General
1 1 (7.69%) Back Office
1 1 (7.69%) Finance
1 1 (7.69%) Legal
1 1 (7.69%) Manufacturing
1 1 (7.69%) Retail
Job Titles
1 7 (53.85%) Architect
1 7 (53.85%) Senior Architect
1 7 (53.85%) Senior Solutions Architect
1 7 (53.85%) Solutions Architect
2 3 (23.08%) Consultant
2 3 (23.08%) DevOps Consultant
2 3 (23.08%) Technical Consultant
3 2 (15.38%) Developer
4 1 (7.69%) .NET Developer
4 1 (7.69%) ASP.NET Developer
4 1 (7.69%) ASP.NET MVC Developer
4 1 (7.69%) HTML CSS Developer
4 1 (7.69%) HTML Developer
4 1 (7.69%) JavaScript Developer
4 1 (7.69%) JavaScript Engineer
4 1 (7.69%) Test Automation Engineer
4 1 (7.69%) Test Engineer
4 1 (7.69%) UI Engineer
4 1 (7.69%) Web Engineer
Libraries, Frameworks & Software Standards
1 5 (38.46%) .NET
2 3 (23.08%) Web Services
3 2 (15.38%) CSS
3 2 (15.38%) HTML
4 1 (7.69%) AngularJS
4 1 (7.69%) ASP.NET
4 1 (7.69%) ASP.NET MVC
4 1 (7.69%) ASP.NET Web API
4 1 (7.69%) jQuery
4 1 (7.69%) Twitter Bootstrap
4 1 (7.69%) WCF
Miscellaneous
1 7 (53.85%) Enterprise Software
1 7 (53.85%) Mobile App
1 7 (53.85%) PlayStation
1 7 (53.85%) Streaming Video
1 7 (53.85%) Xbox
Operating Systems
1 10 (76.92%) Windows
2 7 (53.85%) Android
2 7 (53.85%) Apple iOS
2 7 (53.85%) Windows Phone
3 3 (23.08%) Linux
3 3 (23.08%) Windows Server
Processes & Methodologies
1 11 (84.62%) Agile Software Development
2 7 (53.85%) SOA
2 7 (53.85%) UML
2 7 (53.85%) Waterfall
3 3 (23.08%) Coaching
3 3 (23.08%) DevOps
3 3 (23.08%) Mentoring
3 3 (23.08%) Open Source
3 3 (23.08%) Scrum
3 3 (23.08%) Software Delivery
4 1 (7.69%) BDD
4 1 (7.69%) Business Intelligence
4 1 (7.69%) Cash Management
4 1 (7.69%) E-Commerce
4 1 (7.69%) MVC
4 1 (7.69%) Test Automation
Programming Languages
1 8 (61.54%) Java
2 7 (53.85%) Objective-C
2 7 (53.85%) Python
3 1 (7.69%) C#
3 1 (7.69%) SQL
Vendors
1 4 (30.77%) Microsoft
2 1 (7.69%) Google
Croydon or Westminster
Home Office
Salary: £52,969 - £62,239 (+ market supplement of up to £11,300)
Posted: 8 days ago
Croydon or Westminster
Home Office
Salary: £32,168 - £37,797 (+ market supplement of up to £5,000)
Posted: 8 days ago
Croydon or Westminster
Home Office
Salary: £32,168 - £37,797 (+ market supplement of up to £5,000)
Posted: 8 days ago
Croydon or Westminster
Home Office
Salary: £52,969 - £62,239 (+ market supplement of up to £11,300)
Posted: 8 days ago
Croydon or Westminster
Home Office
Salary: £52,969 - £62,239 (+ market supplement of up to £11,300)
Posted: 17 days ago
Croydon or Westminster
Home Office
Salary: £32,168 - £37,797 (+ market supplement of up to £5,000)
Posted: 17 days ago