The following table provides summary statistics for permanent job vacancies advertised in Letchworth 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)
Hertfordshire / Letchworth
3 months to
24 Jun 2017
Same period 2016 Same period 2015
Rank 5 5 12
Rank change year-on-year 0 +7  
Permanent jobs citing JavaScript 30 15 2
As % of all permanent IT jobs advertised in Letchworth 35.71% 34.09% 5.13%
As % of the Programming Languages category 53.57% 51.72% 8.33%
Number of salaries quoted 30 12 2
Median salary £42,500 £33,500 £31,750
Median salary % change year-on-year +26.86% +5.51%  
90% offered a salary of more than £37,050 £28,100 £25,150
10% offered a salary of more than £45,000 £40,000 £38,350
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 Letchworth with a requirement for programming language skills.

Programming Language Skills
Letchworth
Permanent job vacancies with a requirement for programming language skills 56 29 24
As % of all permanent IT job vacancies advertised in Letchworth 66.67% 65.91% 61.54%
Number of salaries quoted 50 26 23
Median salary £40,000 £40,000 £31,000
Median salary % change year-on-year - +29.03%  
90% offered a salary of more than £25,000 £27,500 £24,000
10% offered a salary of more than £45,000 £42,375 £42,500
UK excluding London median salary £42,500 £41,000 £40,000
% change year-on-year +3.65% +2.50%  

JavaScript
Job Vacancy Trend in Letchworth

The job posting trend of jobs advertised in Letchworth 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 Letchworth

JavaScript
Salary Trend in Letchworth

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

Salary trend for JavaScript in Letchworth

JavaScript
Salary Histogram in Letchworth

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

Salary histogram for JavaScript in Letchworth

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 Letchworth region with a requirement for JavaScript.

1 55 (100.00%) SQL
2 41 (74.55%) Scrum
3 38 (69.09%) SQL Server
4 36 (65.45%) Agile Software Development
5 30 (54.55%) TDD
5 30 (54.55%) NUnit
5 30 (54.55%) MVC
5 30 (54.55%) ASP.NET
5 30 (54.55%) .NET
5 30 (54.55%) C#
5 30 (54.55%) Unit Testing
5 30 (54.55%) Continuous Integration
5 30 (54.55%) Team Foundation Server
5 30 (54.55%) ASP.NET MVC
5 30 (54.55%) MSTest
5 30 (54.55%) AngularJS
6 26 (47.27%) ASP.NET Web API
7 25 (45.45%) Java
7 25 (45.45%) Tomcat
8 19 (34.55%) Selenium
8 19 (34.55%) JIRA
8 19 (34.55%) JUnit
9 14 (25.45%) Software Engineering
9 14 (25.45%) CSS
9 14 (25.45%) HTML
10 11 (20.00%) Data Protection
11 8 (14.55%) Spring
11 8 (14.55%) Degree
11 8 (14.55%) Computer Science
11 8 (14.55%) ATDD

JavaScript
Co-occurring IT Skills in Letchworth 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 25 (45.45%) Tomcat
Database & Business Intelligence
1 38 (69.09%) SQL Server
Development Applications
1 30 (54.55%) MSTest
1 30 (54.55%) NUnit
1 30 (54.55%) Team Foundation Server
2 19 (34.55%) JIRA
2 19 (34.55%) JUnit
2 19 (34.55%) Selenium
Job Titles
1 51 (92.73%) Developer
2 29 (52.73%) .NET Developer
3 27 (49.09%) C# Developer
4 26 (47.27%) C# .NET Developer
5 21 (38.18%) ASP.NET MVC Developer
5 21 (38.18%) Java Developer
6 18 (32.73%) ASP.NET Developer
6 18 (32.73%) C# ASP.NET Developer
7 8 (14.55%) Agile .NET Developer
7 8 (14.55%) Agile C# Developer
7 8 (14.55%) Agile Developer
8 4 (7.27%) Java Engineer
8 4 (7.27%) Java Software Engineer
8 4 (7.27%) Software Engineer
9 3 (5.45%) Java Software Developer
9 3 (5.45%) JavaScript Developer
9 3 (5.45%) SQL Developer
10 2 (3.64%) HTML CSS Developer
10 2 (3.64%) HTML Developer
10 2 (3.64%) Senior Developer
Libraries, Frameworks & Software Standards
1 30 (54.55%) .NET
1 30 (54.55%) AngularJS
1 30 (54.55%) ASP.NET
1 30 (54.55%) ASP.NET MVC
2 26 (47.27%) ASP.NET Web API
3 14 (25.45%) CSS
3 14 (25.45%) HTML
4 8 (14.55%) Spring
5 6 (10.91%) XML
6 4 (7.27%) XSLT
7 3 (5.45%) Web Services
Miscellaneous
1 8 (14.55%) Computer Science
Processes & Methodologies
1 41 (74.55%) Scrum
2 36 (65.45%) Agile Software Development
3 30 (54.55%) Continuous Integration
3 30 (54.55%) MVC
3 30 (54.55%) TDD
3 30 (54.55%) Unit Testing
4 14 (25.45%) Software Engineering
5 11 (20.00%) Data Protection
6 8 (14.55%) ATDD
Programming Languages
1 55 (100.00%) SQL
2 30 (54.55%) C#
3 25 (45.45%) Java
Qualifications
1 8 (14.55%) Degree
2 4 (7.27%) SC Cleared
2 4 (7.27%) Security Cleared
Vendors
1 8 (14.55%) Oracle