The following table provides summary statistics for permanent job vacancies advertised in Brentwood 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 28 June 2017 with a comparison to the same period in the previous 2 years.

JavaScript (including ECMAScript)
Essex / Brentwood
3 months to
28 Jun 2017
Same period 2016 Same period 2015
Rank 6 16 25
Rank change year-on-year +10 +9  
Permanent jobs citing JavaScript 17 10 11
As % of all permanent IT jobs advertised in Brentwood 37.78% 9.26% 6.40%
As % of the Programming Languages category 62.96% 25.64% 19.64%
Number of salaries quoted 17 9 11
Median salary £55,000 £27,500 £57,500
Median salary % change year-on-year +100.00% -52.17%  
90% offered a salary of more than £41,250 £22,500 £43,750
10% offered a salary of more than £72,500 £100,000 £72,500
UK excluding London median salary £40,000 £40,000 £38,625
% change year-on-year - +3.55%  

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 Brentwood with a requirement for programming language skills.

Programming Language Skills
Brentwood
Permanent job vacancies with a requirement for programming language skills 27 39 56
As % of all permanent IT job vacancies advertised in Brentwood 60.00% 36.11% 32.56%
Number of salaries quoted 42 57 50
Median salary £50,000 £42,500 £47,500
Median salary % change year-on-year +17.64% -10.52%  
90% offered a salary of more than £41,250 £26,250 £37,725
10% offered a salary of more than £72,500 £72,500 £94,150
UK excluding London median salary £42,500 £40,500 £40,000
% change year-on-year +4.93% +1.25%  

JavaScript
Job Vacancy Trend in Brentwood

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

Job vacancy trend for JavaScript in Brentwood

JavaScript
Salary Trend in Brentwood

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

Salary trend for JavaScript in Brentwood

JavaScript
Salary Histogram in Brentwood

The salary distribution of IT jobs citing JavaScript in Brentwood over the 3 months to 28 June 2017.

Salary histogram for JavaScript in Brentwood

For the 6 months to 28 June 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 Brentwood region with a requirement for JavaScript.

1 31 (100.00%) C#
1 31 (100.00%) HTML
1 31 (100.00%) .NET
1 31 (100.00%) SQL Server
1 31 (100.00%) CSS
1 31 (100.00%) .NET Framework
1 31 (100.00%) Team Foundation Server
2 28 (90.32%) ASP.NET
3 24 (77.42%) Workflow
3 24 (77.42%) OOD
3 24 (77.42%) Visual Studio
3 24 (77.42%) QA
3 24 (77.42%) Wealth Management
3 24 (77.42%) Unit Testing
3 24 (77.42%) Ajax
3 24 (77.42%) SQL Server 2008
3 24 (77.42%) SQL Server 2012
3 24 (77.42%) SDLC
4 14 (45.16%) Finance
4 14 (45.16%) VB.NET
5 7 (22.58%) Greenfield Project
5 7 (22.58%) SOLID
5 7 (22.58%) AngularJS
5 7 (22.58%) Twitter Bootstrap
5 7 (22.58%) ASP.NET Web API
5 7 (22.58%) DevOps
5 7 (22.58%) Don't repeat yourself (DRY)
5 7 (22.58%) Entity Framework
5 7 (22.58%) Node.js
5 7 (22.58%) RESTful

JavaScript
Co-occurring IT Skills in Brentwood 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:

Cloud Services
1 7 (22.58%) Amazon AWS
1 7 (22.58%) Cloud Computing
1 7 (22.58%) Microsoft Azure
Database & Business Intelligence
1 31 (100.00%) SQL Server
2 24 (77.42%) SQL Server 2008
2 24 (77.42%) SQL Server 2012
Development Applications
1 31 (100.00%) Team Foundation Server
2 24 (77.42%) Visual Studio
3 7 (22.58%) Git (software)
General
1 14 (45.16%) Finance
Job Titles
1 21 (67.74%) .NET Developer
1 21 (67.74%) Developer
2 14 (45.16%) .NET Software Developer
2 14 (45.16%) VB.NET Developer
3 10 (32.26%) Technical Leader
4 7 (22.58%) Agile .NET Developer
4 7 (22.58%) Agile Developer
5 5 (16.13%) Senior .NET Developer
5 5 (16.13%) Senior Agile Developer
5 5 (16.13%) Senior Developer
6 3 (9.68%) Digital Developer
Libraries, Frameworks & Software Standards
1 31 (100.00%) .NET
1 31 (100.00%) .NET Framework
1 31 (100.00%) CSS
1 31 (100.00%) HTML
2 28 (90.32%) ASP.NET
3 24 (77.42%) Ajax
4 7 (22.58%) AngularJS
4 7 (22.58%) ASP.NET Web API
4 7 (22.58%) Entity Framework
4 7 (22.58%) NHibernate
4 7 (22.58%) Node.js
4 7 (22.58%) RESTful
4 7 (22.58%) Twitter Bootstrap
5 4 (12.90%) ASP.NET MVC
6 3 (9.68%) CSS3
6 3 (9.68%) HTML5
Miscellaneous
1 7 (22.58%) Greenfield Project
Processes & Methodologies
1 24 (77.42%) OOD
1 24 (77.42%) SDLC
1 24 (77.42%) Unit Testing
1 24 (77.42%) Wealth Management
1 24 (77.42%) Workflow
2 7 (22.58%) Agile Software Development
2 7 (22.58%) Business Development
2 7 (22.58%) Continuous Integration
2 7 (22.58%) DevOps
2 7 (22.58%) Don't repeat yourself (DRY)
2 7 (22.58%) Kanban
2 7 (22.58%) MVC
2 7 (22.58%) OO
2 7 (22.58%) OOP
2 7 (22.58%) Scrum
2 7 (22.58%) SOLID
2 7 (22.58%) TDD
3 4 (12.90%) Machine Learning
Programming Languages
1 31 (100.00%) C#
2 14 (45.16%) VB.NET
Quality Assurance & Compliance
1 24 (77.42%) QA