The median annual salary for a JavaScript Developer was £45,000 in advertised job vacancies in Hertfordshire during the 3 months to 25 April 2017.

The first table below provides salary benchmarking and summary statistics including a comparison to same period in the previous 2 years.

JavaScript Developer
East of England / Hertfordshire
3 months to
25 Apr 2017
Same period 2016 Same period 2015
Rank 66 108 114
Rank change year-on-year +42 +6  
Permanent jobs requiring a JavaScript Developer 73 48 55
As % of all permanent IT jobs advertised in Hertfordshire 3.39% 1.85% 2.07%
As % of the Job Titles category 3.50% 1.95% 2.15%
Number of salaries quoted 64 46 41
Median salary £45,000 £50,000 £47,500
Median salary % change year-on-year -10.00% +5.26%  
90% offered a salary of more than £37,500 £37,500 £27,500
10% offered a salary of more than £64,250 £80,000 £50,000
UK excluding London median salary £40,000 £40,000 £40,000

The next table is for comparison with the above and includes summary statistics for all job roles in permanent job vacancies advertised in Hertfordshire. Most job vacancies include a discernible job title. As such, the figures in the first row provide an indication of the number of permanent jobs in our overall sample.

IT Job Roles
Hertfordshire
Permanent job vacancies with a job title containing a recognized job role 2087 2467 2563
As % of all permanent IT job vacancies advertised in Hertfordshire 96.93% 95.32% 96.64%
Number of salaries quoted 1781 2032 2049
Median salary £47,100 £45,000 £45,000
Median salary % change year-on-year +4.66% -  
90% offered a salary of more than £25,000 £26,500 £26,000
10% offered a salary of more than £67,500 £65,000 £65,500
UK excluding London median salary £42,500 £41,500 £40,000
% change year-on-year +2.40% +3.75%  

JavaScript Developer
Job Vacancy Trend in Hertfordshire

The job posting trend of jobs advertised in Hertfordshire that featured JavaScript Developer in the job title.

Job vacancy trend for JavaScript Developer in Hertfordshire

JavaScript Developer
Salary Trend in Hertfordshire

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

Salary trend for JavaScript Developer in Hertfordshire

JavaScript Developer
Salary Histogram in Hertfordshire

The salary distribution of IT jobs citing JavaScript Developer in Hertfordshire over the 3 months to 25 April 2017.

Salary histogram for JavaScript Developer in Hertfordshire

JavaScript Developer
Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median salaries quoted in IT jobs citing JavaScript Developer within the Hertfordshire region over the 3 months to 25 April 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 3 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Permanent
IT Job Ads
Median Salary
Last 3 Months
Median Salary
% Change
on Same Period
Last Year
Live
Job
Vacancies
Watford +3 22 £45,000 -25.00% 2
St Albans -3 13 £47,500 - 1
Borehamwood - 7 £40,000 -
Hitchin - 7 £40,000 -
Potters Bar - 3 £50,000 -
Hatfield - 3 £65,000 - 1
Rickmansworth - 2 £40,000 -
Welwyn - 2 £65,000 -
Berkhamsted -4 1 £32,500 +18.18%
Harpenden - 1 £37,500 - 2
Letchworth - 1 £45,000 -
JavaScript Developer
East of England

JavaScript Developer Skill Set
Top 30 Co-occurring IT Skills in Hertfordshire

For the 6 months to 25 April 2017, JavaScript Developer job roles required the following IT skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all job ads across the Hertfordshire region featuring JavaScript Developer in the job title.

1 126 (100.00%) JavaScript
2 104 (82.54%) HTML
3 69 (54.76%) CSS
4 60 (47.62%) C#
4 60 (47.62%) .NET
5 58 (46.03%) jQuery
5 58 (46.03%) AngularJS
6 54 (42.86%) Agile Software Development
7 47 (37.30%) Web Development
8 46 (36.51%) MVC
9 45 (35.71%) ASP.NET
10 41 (32.54%) HTML5
11 40 (31.75%) Node.js
11 40 (31.75%) SQL
12 38 (30.16%) SQL Server
13 36 (28.57%) Software Engineering
14 31 (24.60%) Front End Development
15 29 (23.02%) KnockoutJS
16 25 (19.84%) OO
17 24 (19.05%) Computer Science
18 22 (17.46%) Degree
19 21 (16.67%) Scrum
19 21 (16.67%) SaaS
19 21 (16.67%) Twitter Bootstrap
20 20 (15.87%) Git (software)
21 19 (15.08%) CSS3
21 19 (15.08%) Ajax
21 19 (15.08%) OOD
22 18 (14.29%) Java
22 18 (14.29%) ASP.NET MVC

JavaScript Developer Skill Set
Co-occurring IT Skills in Hertfordshire 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 8 (6.35%) Elasticsearch
1 8 (6.35%) IIS
2 7 (5.56%) Umbraco
3 6 (4.76%) CMS
4 4 (3.17%) Kentico
5 3 (2.38%) WebSphere
6 2 (1.59%) JBoss
6 2 (1.59%) WebLogic
7 1 (0.79%) Apache
7 1 (0.79%) Tomcat
7 1 (0.79%) WordPress
Applications
1 1 (0.79%) GIMP
1 1 (0.79%) Photoshop
Business Applications
1 4 (3.17%) Payment Gateway
2 1 (0.79%) Magento
Cloud Services
1 21 (16.67%) SaaS
2 3 (2.38%) Microsoft Azure
3 2 (1.59%) Amazon AWS
Communications & Networking
1 8 (6.35%) HTTP
2 1 (0.79%) Broadband
2 1 (0.79%) Internet
Database & Business Intelligence
1 38 (30.16%) SQL Server
2 5 (3.97%) MySQL
3 3 (2.38%) Azure SQL Database
4 2 (1.59%) MongoDB
4 2 (1.59%) NoSQL
4 2 (1.59%) Relational Database
5 1 (0.79%) Redis
Development Applications
1 20 (15.87%) Git (software)
2 14 (11.11%) gulp
3 13 (10.32%) Subversion
3 13 (10.32%) Team Foundation Server
3 13 (10.32%) WebDriver
4 12 (9.52%) JBehave
4 12 (9.52%) Karma Test Runner
4 12 (9.52%) Visual Studio
5 7 (5.56%) Jenkins
5 7 (5.56%) Octopus Deploy
5 7 (5.56%) SpecFlow
6 5 (3.97%) Bower
7 2 (1.59%) Oracle Forms
7 2 (1.59%) PowerBuilder
7 2 (1.59%) Selenium
8 1 (0.79%) JIRA
8 1 (0.79%) JUnit
8 1 (0.79%) MSTest
8 1 (0.79%) NUnit
8 1 (0.79%) RSpec
General
1 13 (10.32%) Games
2 6 (4.76%) Finance
3 5 (3.97%) Billing
4 3 (2.38%) Retail
4 3 (2.38%) Telecoms
5 1 (0.79%) Banking
5 1 (0.79%) Marketing
Libraries, Frameworks & Software Standards
1 104 (82.54%) HTML
2 69 (54.76%) CSS
3 60 (47.62%) .NET
4 58 (46.03%) AngularJS
4 58 (46.03%) jQuery
5 45 (35.71%) ASP.NET
6 41 (32.54%) HTML5
7 40 (31.75%) Node.js
8 29 (23.02%) KnockoutJS
9 21 (16.67%) Twitter Bootstrap
10 19 (15.08%) Ajax
10 19 (15.08%) CSS3
11 18 (14.29%) ASP.NET MVC
12 17 (13.49%) ASP.NET Web API
13 16 (12.70%) D3.js
14 15 (11.90%) React
15 14 (11.11%) JSON
16 13 (10.32%) lodash
17 12 (9.52%) CodeMirror
18 11 (8.73%) Sass
Miscellaneous
1 24 (19.05%) Computer Science
2 12 (9.52%) Fintech
3 9 (7.14%) User Experience
4 5 (3.97%) Algorithms
4 5 (3.97%) Data Structures
5 4 (3.17%) Greenfield Project
6 2 (1.59%) Analytical Skills
6 2 (1.59%) Replication
6 2 (1.59%) Smartphone
6 2 (1.59%) Virtual Team
Operating Systems
1 5 (3.97%) Android
2 4 (3.17%) Linux
3 3 (2.38%) VMS
4 1 (0.79%) Mac OS X
4 1 (0.79%) Solaris
4 1 (0.79%) Unix
4 1 (0.79%) Windows
Processes & Methodologies
1 54 (42.86%) Agile Software Development
2 47 (37.30%) Web Development
3 46 (36.51%) MVC
4 36 (28.57%) Software Engineering
5 31 (24.60%) Front End Development
6 25 (19.84%) OO
7 21 (16.67%) Scrum
8 19 (15.08%) OOD
9 12 (9.52%) Game Development
10 10 (7.94%) E-Commerce
10 10 (7.94%) Mentoring
11 8 (6.35%) Visualisation
12 6 (4.76%) Data Visualisation
12 6 (4.76%) MVVM
12 6 (4.76%) Responsive Web Design
12 6 (4.76%) SOLID
13 5 (3.97%) Android Development
13 5 (3.97%) BDD
13 5 (3.97%) Complexity Analysis
13 5 (3.97%) Service Management
Programming Languages
1 126 (100.00%) JavaScript
2 60 (47.62%) C#
3 40 (31.75%) SQL
4 18 (14.29%) Java
5 17 (13.49%) PHP
6 14 (11.11%) ES6
7 8 (6.35%) TypeScript
8 7 (5.56%) PowerShell
9 4 (3.17%) C++
10 3 (2.38%) Python
10 3 (2.38%) VB.NET
11 2 (1.59%) Progress 4GL
12 1 (0.79%) Jython
12 1 (0.79%) Ruby
12 1 (0.79%) Shell Script
12 1 (0.79%) T-SQL
Qualifications
1 22 (17.46%) Degree
2 4 (3.17%) MCTS
2 4 (3.17%) Microsoft Certification
3 2 (1.59%) PhD
Quality Assurance & Compliance
1 6 (4.76%) QA
2 2 (1.59%) ISO13485
Systems Management
1 8 (6.35%) Opscode Chef
2 1 (0.79%) Capistrano
2 1 (0.79%) Grafana
2 1 (0.79%) Graphite
2 1 (0.79%) Oracle Enterprise Manager
Vendors
1 12 (9.52%) Microsoft
2 7 (5.56%) Google
3 4 (3.17%) Oracle
4 2 (1.59%) Ab Initio
4 2 (1.59%) Facebook
4 2 (1.59%) Progress
4 2 (1.59%) Zend
5 1 (0.79%) IBM
Stevenage, Hertfordshire
Oscar
Salary: £50000 - £70000 per annum + Benefits
Posted: 3 hours ago
Harpenden, Hertfordshire
Oscar
Salary: £35000 - £45000 per annum + Additional benefits
Posted: 3 hours ago
Harpenden, Hertfordshire
Oscar
Salary: £40000 - £48000 per annum + Benefits
Posted: 8 hours ago
Hatfield, Hertfordshire
Understanding Recruitment
Salary: £35000 - £40000 per annum + benefits
Posted: Yesterday
St. Albans, Hertfordshire
Understanding Recruitment
Salary: £50000.00 - £65000.00 per annum
Posted: Yesterday
Watford, Hertfordshire
Logic Engagements Ltd
Salary: £35000 - £40000 per annum
Posted: Yesterday
Hemel Hempstead, Hertfordshire
SYSTEM RECRUITMENT LTD
Salary: £20000 - £40000 per annum + Pension
Posted: 6 days ago
Hertfordshire
itecopeople
Salary: £40000 - £55000 per annum + + Pension + Health care
Posted: 25 days ago
Hemel Hempstead
Bluetown Online LTD
Salary: £35000 - £45000 per annum
Posted: 18 days ago