The following table provides summary statistics for permanent job vacancies advertised in Colchester 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 24 June 2017 with a comparison to the same period in the previous 2 years.

JavaScript (including ECMAScript)
Essex / Colchester
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 8 3 3
Rank change year-on-year -5 0  
Permanent jobs citing JavaScript 36 54 73
As % of all permanent IT jobs advertised in Colchester 17.48% 25.84% 44.24%
As % of the Programming Languages category 24.83% 50.00% 68.87%
Number of salaries quoted 32 53 69
Median salary £40,000 £35,000 £27,000
Median salary % change year-on-year +14.28% +29.62%  
90% offered a salary of more than £20,000 £25,000 £25,000
10% offered a salary of more than £61,500 £62,500 £40,000
UK excluding London median salary £40,000 £40,000 £39,000
% change year-on-year - +2.56%  

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 Colchester with a requirement for programming language skills.

Programming Language Skills
Colchester
Permanent job vacancies with a requirement for programming language skills 145 108 106
As % of all permanent IT job vacancies advertised in Colchester 70.39% 51.67% 64.24%
Number of salaries quoted 129 100 98
Median salary £45,000 £40,000 £27,000
Median salary % change year-on-year +12.50% +48.14%  
90% offered a salary of more than £33,500 £25,000 £25,000
10% offered a salary of more than £62,500 £45,000 £62,500
UK excluding London median salary £42,500 £41,000 £40,000
% change year-on-year +3.65% +2.50%  

JavaScript
Job Vacancy Trend in Colchester

The job posting trend of jobs advertised in Colchester 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 Colchester

JavaScript
Salary Trend in Colchester

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

Salary trend for JavaScript in Colchester

JavaScript
Salary Histogram in Colchester

The salary distribution of IT jobs citing JavaScript in Colchester over the 3 months to 24 June 2017.

Salary histogram for JavaScript in Colchester

For the 6 months to 24 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 Colchester region with a requirement for JavaScript.

1 89 (85.58%) CSS
2 85 (81.73%) HTML
3 49 (47.12%) Java
4 46 (44.23%) Agile Software Development
5 41 (39.42%) Degree
6 40 (38.46%) Oracle
6 40 (38.46%) jQuery
7 37 (35.58%) Ajax
8 36 (34.62%) .NET
9 33 (31.73%) SQL
9 33 (31.73%) MySQL
9 33 (31.73%) MVC
10 32 (30.77%) Web Development
10 32 (30.77%) JBoss
11 31 (29.81%) Computer Science
12 27 (25.96%) Spring MVC
12 27 (25.96%) Spring
12 27 (25.96%) C#
12 27 (25.96%) Tomcat
13 26 (25.00%) SQL Server
13 26 (25.00%) Java EE
14 24 (23.08%) T-SQL
14 24 (23.08%) Git (software)
15 23 (22.12%) GlassFish
15 23 (22.12%) PL/SQL
16 22 (21.15%) E-Commerce
16 22 (21.15%) CouchDB
16 22 (21.15%) MongoDB
16 22 (21.15%) Big Data
17 19 (18.27%) Oracle Database

JavaScript
Co-occurring IT Skills in Colchester 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 32 (30.77%) JBoss
2 27 (25.96%) Tomcat
3 23 (22.12%) GlassFish
4 19 (18.27%) WebSphere
5 15 (14.42%) Apache Pig
5 15 (14.42%) Apache Spark
6 13 (12.50%) Apache
7 7 (6.73%) WordPress
8 6 (5.77%) WebLogic
9 3 (2.88%) IIS
10 2 (1.92%) Apache Geronimo
10 2 (1.92%) CMS
11 1 (0.96%) Drupal
11 1 (0.96%) Joomla!
11 1 (0.96%) Umbraco
Applications
1 13 (12.50%) Photoshop
2 3 (2.88%) Adobe Illustrator
3 2 (1.92%) Autodesk Inventor
3 2 (1.92%) Revit
4 1 (0.96%) Weka
Business Applications
1 3 (2.88%) SessionCam
2 2 (1.92%) osCommerce
3 1 (0.96%) SAP Oil and Gas
Cloud Services
1 4 (3.85%) Oracle CX
1 4 (3.85%) Oracle Service Cloud
1 4 (3.85%) PaaS
1 4 (3.85%) SaaS
2 3 (2.88%) Google Analytics
Database & Business Intelligence
1 33 (31.73%) MySQL
2 26 (25.00%) SQL Server
3 22 (21.15%) Big Data
3 22 (21.15%) CouchDB
3 22 (21.15%) MongoDB
4 19 (18.27%) Oracle Database
5 17 (16.35%) Relational Database
6 15 (14.42%) Hadoop
6 15 (14.42%) NoSQL
7 11 (10.58%) RDBMS
8 9 (8.65%) PostgreSQL
9 8 (7.69%) Neo4j
10 6 (5.77%) QlikView
11 1 (0.96%) Apache Hive
11 1 (0.96%) Mahout
11 1 (0.96%) SQL Server 2008
11 1 (0.96%) Sqoop
Development Applications
1 24 (23.08%) Git (software)
2 18 (17.31%) Ant
2 18 (17.31%) Maven
3 12 (11.54%) Team Foundation Server
4 10 (9.62%) gulp
5 5 (4.81%) Xcode
6 4 (3.85%) Gradle
7 1 (0.96%) Grunt
7 1 (0.96%) Jasmine
7 1 (0.96%) jMock
7 1 (0.96%) JUnit
7 1 (0.96%) Karma Test Runner
7 1 (0.96%) Mocha
7 1 (0.96%) Mockito
7 1 (0.96%) Subversion
7 1 (0.96%) webpack
General
1 8 (7.69%) Marketing
2 3 (2.88%) Finance
3 2 (1.92%) Automotive
3 2 (1.92%) Games
4 1 (0.96%) Advertising
4 1 (0.96%) Back Office
4 1 (0.96%) Electronics
4 1 (0.96%) Manufacturing
4 1 (0.96%) Telecoms
Job Titles
1 90 (86.54%) Developer
2 33 (31.73%) Java Developer
3 25 (24.04%) Web Developer
4 22 (21.15%) .NET Developer
4 22 (21.15%) Senior Developer
5 19 (18.27%) Oracle Developer
6 18 (17.31%) Senior Java Developer
7 14 (13.46%) Lead Developer
7 14 (13.46%) Lead Java Developer
7 14 (13.46%) Senior Oracle Developer
8 13 (12.50%) JavaScript Developer
9 12 (11.54%) .NET Web Developer
10 10 (9.62%) Designer
10 10 (9.62%) HTML Developer
10 10 (9.62%) Photoshop Designer
10 10 (9.62%) Photoshop Web Designer
10 10 (9.62%) Programmer
10 10 (9.62%) Web Designer
11 9 (8.65%) Java Programmer
11 9 (8.65%) Senior Java Programmer
Libraries, Frameworks & Software Standards
1 89 (85.58%) CSS
2 85 (81.73%) HTML
3 40 (38.46%) jQuery
4 37 (35.58%) Ajax
5 36 (34.62%) .NET
6 27 (25.96%) Spring
6 27 (25.96%) Spring MVC
7 26 (25.00%) Java EE
8 19 (18.27%) Hibernate
8 19 (18.27%) Servlets
9 18 (17.31%) HTML5
10 17 (16.35%) CSS3
10 17 (16.35%) JSON
10 17 (16.35%) Swing
11 16 (15.38%) EJB
11 16 (15.38%) Web Services
12 12 (11.54%) JSP
12 12 (11.54%) REST
12 12 (11.54%) SOAP
13 11 (10.58%) JMS
Miscellaneous
1 31 (29.81%) Computer Science
2 14 (13.46%) Enterprise Software
3 5 (4.81%) Greenfield Project
3 5 (4.81%) Mobile App
4 3 (2.88%) Analytical Skills
4 3 (2.88%) User Experience
5 2 (1.92%) Animation
5 2 (1.92%) HoloLens
5 2 (1.92%) HTC Vive
5 2 (1.92%) Oculus Rift
Operating Systems
1 10 (9.62%) Linux
2 5 (4.81%) Apple iOS
3 3 (2.88%) Android
Processes & Methodologies
1 46 (44.23%) Agile Software Development
2 33 (31.73%) MVC
3 32 (30.77%) Web Development
4 22 (21.15%) E-Commerce
5 14 (13.46%) OO
6 13 (12.50%) Scrum
7 11 (10.58%) Front End Development
8 10 (9.62%) OOP
9 8 (7.69%) Mentoring
10 7 (6.73%) Mathematics
10 7 (6.73%) Waterfall
10 7 (6.73%) Web Design
11 6 (5.77%) Customer Requirements
11 6 (5.77%) Software Engineering
12 5 (4.81%) CRM
12 5 (4.81%) Responsive Web Design
13 4 (3.85%) Analytics
13 4 (3.85%) Configure, Price, Quote (CPQ)
13 4 (3.85%) Presales
13 4 (3.85%) User Acceptance Testing
Programming Languages
1 49 (47.12%) Java
2 33 (31.73%) SQL
3 27 (25.96%) C#
4 24 (23.08%) T-SQL
5 23 (22.12%) PL/SQL
6 15 (14.42%) PHP
7 8 (7.69%) TypeScript
8 6 (5.77%) Objective-C
9 2 (1.92%) Perl
9 2 (1.92%) VB.NET
Qualifications
1 41 (39.42%) Degree
2 1 (0.96%) Computer Science Degree
Quality Assurance & Compliance
1 3 (2.88%) SLA
System Software
1 1 (0.96%) HDFS
Systems Management
1 3 (2.88%) Puppet
Vendors
1 40 (38.46%) Oracle
2 7 (6.73%) Tableau
3 3 (2.88%) Dynatrace
3 3 (2.88%) Google
3 3 (2.88%) Microsoft
3 3 (2.88%) Software AG
3 3 (2.88%) Splunk
3 3 (2.88%) webMethods
4 2 (1.92%) Autodesk
5 1 (0.96%) Adobe
5 1 (0.96%) Alteryx
5 1 (0.96%) SAP