Period
to 20 July 2018

The following table provides summary statistics for contract job vacancies advertised in Hertfordshire with a requirement for JavaScript skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JavaScript over the 6 months to 20 July 2018 with a comparison to the same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

JavaScript (including ECMAScript)
East of England > Hertfordshire
6 months to
20 Jul 2018
Same period 2017 Same period 2016
Rank 12 11 17
Rank change year-on-year -1 +6 -9
Contract jobs citing JavaScript 149 132 98
As % of all contract IT jobs advertised in Hertfordshire 9.42% 10.34% 6.99%
As % of the Programming Languages category 27.70% 27.39% 25.06%
Number of daily rates quoted 108 128 61
Hertfordshire median daily rate £400 £400 £350
Median daily rate % change year-on-year - +14.29% -3.45%
10th Percentile £166 £275 £275
90th Percentile £513 £470 £523
East of England median daily rate £425 £388 £375
% change year-on-year +9.68% +3.33% +10.29%
Number of hourly rates quoted 0 1 5
Hertfordshire median hourly rate - £15.00 £31.50
Median hourly rate % change year-on-year - -52.38% -21.25%
East of England median hourly rate £35.50 £38.75 £21.25
% change year-on-year -8.39% +82.35% -47.27%

JavaScript is in the Programming Languages category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in Hertfordshire with a requirement for coding skills.

All Programming Languages
Hertfordshire
Contract vacancies with a requirement for coding skills 538 482 391
As % of all contract IT jobs advertised in Hertfordshire 34.03% 37.77% 27.89%
Number of daily rates quoted 325 283 223
Hertfordshire median daily rate £400 £413 £388
Median daily rate % change year-on-year -3.03% +6.45% +6.90%
10th Percentile £214 £258 £261
90th Percentile £556 £585 £514
East of England median daily rate £425 £400 £375
% change year-on-year +6.25% +6.67% +2.74%
Number of hourly rates quoted 18 29 21
Hertfordshire median hourly rate £31.25 £42.50 £44.40
Median hourly rate % change year-on-year -26.47% -4.28% +36.62%
10th Percentile £12.25 £15.00 £11.62
90th Percentile £51.00 £53.15 £53.75
East of England median hourly rate £41.00 £40.00 £37.50
% change year-on-year +2.50% +6.67% -

JavaScript
Job Vacancy Trend in Hertfordshire

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

Job vacancy trend for JavaScript in Hertfordshire

JavaScript
Contractor Daily Rate Trend in Hertfordshire

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing JavaScript in Hertfordshire.

Contractor daily rate trend for JavaScript in Hertfordshire

JavaScript
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing JavaScript in Hertfordshire over the 6 months to 20 July 2018.

Contractor daily rate histogram for JavaScript in Hertfordshire

JavaScript
Contractor Hourly Rate Trend in Hertfordshire

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing JavaScript in Hertfordshire.

Contractor hourly rate trend for JavaScript in Hertfordshire

JavaScript
Contract Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JavaScript within the Hertfordshire region over the 6 months to 20 July 2018. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Watford 0 45 £388 +6.90% 14
Stevenage +6 23 £450 +28.57% 4
Hemel Hempstead -6 17 £399 +8.50% 4
Rickmansworth -2 12 £215 -44.87% 4
St Albans +1 9 £313 +4.17% 11
Welwyn Garden City -7 7 £476 +0.26% 1
Hatfield +3 6 £438 +9.38%
Borehamwood 0 6 £475 +72.73% 1
JavaScript
East of England

For the 6 months to 20 July 2018, IT contractor jobs citing JavaScript also mentioned the following skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the Hertfordshire region with a requirement for JavaScript.

1 95 (63.76%) HTML
2 87 (58.39%) CSS
3 55 (36.91%) C#
4 49 (32.89%) Java
5 47 (31.54%) .NET
6 45 (30.20%) Agile Software Development
7 44 (29.53%) jQuery
8 41 (27.52%) AngularJS
9 40 (26.85%) Web Services
9 40 (26.85%) MVC
10 37 (24.83%) SQL
11 36 (24.16%) Linux
12 35 (23.49%) HTML5
13 34 (22.82%) Microsoft
14 33 (22.15%) Git (software)
14 33 (22.15%) Software Engineering
15 31 (20.81%) SQL Server
15 31 (20.81%) Node.js
15 31 (20.81%) Front End Development
16 27 (18.12%) ASP.NET
17 25 (16.78%) REST
18 24 (16.11%) Visual Studio
19 23 (15.44%) PHP
19 23 (15.44%) XHTML
19 23 (15.44%) Web Development
20 22 (14.77%) E-Commerce
21 21 (14.09%) Eclipse
21 21 (14.09%) TDD
22 20 (13.42%) Windows
22 20 (13.42%) Twitter Bootstrap

JavaScript
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 17 (11.41%) Apache
2 7 (4.70%) Elasticsearch
3 6 (4.03%) Tomcat
4 4 (2.68%) CMS
4 4 (2.68%) IIS
4 4 (2.68%) WordPress
5 3 (2.01%) SharePoint
5 3 (2.01%) SharePoint 2013
6 2 (1.34%) MQSeries
6 2 (1.34%) nginx
6 2 (1.34%) WebSphere
7 1 (0.67%) Adobe Experience Manager
7 1 (0.67%) Confluence
7 1 (0.67%) NServiceBus
7 1 (0.67%) WebSphere Application Server
Applications
1 2 (1.34%) Photoshop
2 1 (0.67%) InVision
2 1 (0.67%) Microsoft Office
Business Applications
1 15 (10.07%) Magento
2 4 (2.68%) Dynamics CRM
3 1 (0.67%) Dynamics AX
3 1 (0.67%) JDE OneWorld
3 1 (0.67%) NetSuite
3 1 (0.67%) Payment Gateway
Cloud Services
1 11 (7.38%) Amazon AWS
2 5 (3.36%) Microsoft Azure
3 4 (2.68%) Google Analytics
4 3 (2.01%) GitHub
4 3 (2.01%) Office 365
5 2 (1.34%) Heroku
6 1 (0.67%) Cloud Computing
6 1 (0.67%) npm
6 1 (0.67%) SaaS
Communications & Networking
1 18 (12.08%) TCP/IP
2 16 (10.74%) Ethernet
3 9 (6.04%) Internet
4 8 (5.37%) HTTP
5 3 (2.01%) DNS
6 2 (1.34%) FTP
6 2 (1.34%) SSL
7 1 (0.67%) Firewall
7 1 (0.67%) LAN
7 1 (0.67%) WAN
7 1 (0.67%) Wi-Fi
Database & Business Intelligence
1 31 (20.81%) SQL Server
2 16 (10.74%) MySQL
3 12 (8.05%) MongoDB
3 12 (8.05%) Relational Database
4 5 (3.36%) SQL Server 2014
5 4 (2.68%) Endeca
5 4 (2.68%) RDBMS
6 3 (2.01%) Sybase ASE
7 2 (1.34%) DB2
7 2 (1.34%) PostgreSQL
7 2 (1.34%) SQL Server 2008
7 2 (1.34%) SQL Server Reporting Services
8 1 (0.67%) Data Warehouse
8 1 (0.67%) DbVisualizer
8 1 (0.67%) Jackrabbit
8 1 (0.67%) SQL Server 2012
8 1 (0.67%) SQL Server Integration Services
Development Applications
1 33 (22.15%) Git (software)
2 24 (16.11%) Visual Studio
3 21 (14.09%) Eclipse
4 16 (10.74%) NetBeans
5 15 (10.07%) gulp
6 9 (6.04%) Subversion
7 8 (5.37%) webpack
8 6 (4.03%) Grunt
8 6 (4.03%) Team Foundation Server
9 5 (3.36%) Jasmine
10 4 (2.68%) Jenkins
10 4 (2.68%) Maven
11 3 (2.01%) IntelliJ
11 3 (2.01%) Karma Test Runner
11 3 (2.01%) Mercurial
11 3 (2.01%) Mocha
11 3 (2.01%) Octopus Deploy
11 3 (2.01%) Visual Studio Code
12 2 (1.34%) GitLab
12 2 (1.34%) Spock
General
1 16 (10.74%) Military
2 13 (8.72%) Aerospace
3 12 (8.05%) Retail
4 11 (7.38%) Finance
5 5 (3.36%) Marketing
6 3 (2.01%) Advertising
6 3 (2.01%) Automotive
6 3 (2.01%) Publishing
7 2 (1.34%) Back Office
7 2 (1.34%) Telecoms
8 1 (0.67%) Games
8 1 (0.67%) Law
8 1 (0.67%) Multimedia
Job Titles
1 110 (73.83%) Developer
2 27 (18.12%) Front End Developer (Client-Side Developer)
3 23 (15.44%) .NET Developer
4 18 (12.08%) Java Developer
5 17 (11.41%) C# Developer
6 15 (10.07%) C# .NET Developer
6 15 (10.07%) JavaScript Developer
7 12 (8.05%) Full Stack Developer
8 9 (6.04%) ASP.NET Developer
8 9 (6.04%) React Developer
9 8 (5.37%) C# ASP.NET Developer
9 8 (5.37%) Magento Developer
9 8 (5.37%) Senior Developer
10 7 (4.70%) Angular Developer
10 7 (4.70%) Software Engineer
10 7 (4.70%) SQL Developer
10 7 (4.70%) UI Developer
11 6 (4.03%) Consultant
11 6 (4.03%) Senior .NET Developer
11 6 (4.03%) Senior C# Developer
Libraries, Frameworks & Software Standards
1 95 (63.76%) HTML
2 87 (58.39%) CSS
3 47 (31.54%) .NET
4 44 (29.53%) jQuery
5 41 (27.52%) AngularJS
6 40 (26.85%) Web Services
7 35 (23.49%) HTML5
8 31 (20.81%) Node.js
9 27 (18.12%) ASP.NET
10 25 (16.78%) REST
11 23 (15.44%) XHTML
12 20 (13.42%) Twitter Bootstrap
13 19 (12.75%) React
13 19 (12.75%) Spring
14 18 (12.08%) CSS3
15 17 (11.41%) RESTful
16 16 (10.74%) Qt
17 14 (9.40%) ASP.NET Web API
18 13 (8.72%) Hibernate
19 12 (8.05%) ASP.NET MVC
Miscellaneous
1 12 (8.05%) User Experience
2 9 (6.04%) Analytical Skills
2 9 (6.04%) Greenfield Project
3 6 (4.03%) Internet of Things
4 5 (3.36%) Social Media
4 5 (3.36%) Tandem
5 4 (2.68%) Algorithms
6 3 (2.01%) Linux Command Line
6 3 (2.01%) Vector Graphics
7 2 (1.34%) Self-Motivation
7 2 (1.34%) W3C
Operating Systems
1 36 (24.16%) Linux
2 20 (13.42%) Windows
3 5 (3.36%) Windows Server
4 2 (1.34%) Unix
5 1 (0.67%) HPUX
5 1 (0.67%) Solaris
5 1 (0.67%) Windows Server 2008
5 1 (0.67%) Windows Server 2012
Processes & Methodologies
1 45 (30.20%) Agile Software Development
2 40 (26.85%) MVC
3 33 (22.15%) Software Engineering
4 31 (20.81%) Front End Development
5 23 (15.44%) Web Development
6 22 (14.77%) E-Commerce
7 21 (14.09%) TDD
8 18 (12.08%) Scrum
9 14 (9.40%) BDD
10 13 (8.72%) Mathematics
10 13 (8.72%) OO
11 11 (7.38%) Kanban
12 10 (6.71%) Unit Testing
13 9 (6.04%) OOP
13 9 (6.04%) Open Source
13 9 (6.04%) Responsive Web Design
14 8 (5.37%) Microservices
14 8 (5.37%) OO PHP
14 8 (5.37%) Web Accessibility
14 8 (5.37%) Web Application Development
Programming Languages
1 55 (36.91%) C#
2 49 (32.89%) Java
3 37 (24.83%) SQL
4 23 (15.44%) PHP
5 18 (12.08%) T-SQL
6 16 (10.74%) C++
7 11 (7.38%) GLSL
7 11 (7.38%) HLSL
8 9 (6.04%) PowerShell
9 8 (5.37%) ES6
9 8 (5.37%) TypeScript
10 5 (3.36%) Java 8
11 2 (1.34%) C
11 2 (1.34%) Groovy
11 2 (1.34%) VBScript
12 1 (0.67%) Bash Shell
12 1 (0.67%) Perl
12 1 (0.67%) Python
Qualifications
1 15 (10.07%) Degree
2 14 (9.40%) Security Cleared
3 11 (7.38%) SC Cleared
Quality Assurance & Compliance
1 7 (4.70%) QA
2 3 (2.01%) SLA
3 2 (1.34%) WCAG
System Software
1 4 (2.68%) Docker
2 3 (2.01%) vSphere
3 1 (0.67%) Active Directory
3 1 (0.67%) VMware Infrastructure
3 1 (0.67%) VMware NSX
Systems Management
1 6 (4.03%) vRealize
1 6 (4.03%) vRealize Orchestrator
2 3 (2.01%) Kubernetes
2 3 (2.01%) vCenter Server
3 2 (1.34%) Docker Swarm
3 2 (1.34%) Mesos
Vendors
1 34 (22.82%) Microsoft
2 10 (6.71%) Zend
3 6 (4.03%) VMware
4 5 (3.36%) Google
4 5 (3.36%) IBM
5 4 (2.68%) hybris
6 3 (2.01%) New Relic
6 3 (2.01%) Nintex
6 3 (2.01%) Sybase
7 1 (0.67%) Adobe
7 1 (0.67%) ATG
7 1 (0.67%) Atlassian
7 1 (0.67%) Blue Martini
7 1 (0.67%) Capita
7 1 (0.67%) Demandware
7 1 (0.67%) Elastic Path
7 1 (0.67%) JD Edwards
7 1 (0.67%) Sony