Period
to 19 April 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 19 April 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
19 Apr 2018
Same period 2017 Same period 2016
Rank 17 15 18
Rank change year-on-year -2 +3 -2
Contract jobs citing JavaScript 118 97 98
As % of all contract IT jobs advertised in Hertfordshire 8.02% 7.89% 7.06%
As % of the Programming Languages category 22.35% 22.61% 25.32%
Number of daily rates quoted 77 69 69
Hertfordshire median daily rate £385 £388 £350
Median daily rate % change year-on-year -0.65% +10.71% -
10th Percentile £313 £263 £298
90th Percentile £515 £520 £528
East of England median daily rate £413 £363 £361
% change year-on-year +13.79% +0.35% +11.15%
Number of hourly rates quoted 1 0 2
Hertfordshire median hourly rate £12.50 - £27.00
10th Percentile £11.25 - £12.25
90th Percentile £13.75 - £41.35
East of England median hourly rate £35.50 £36.00 £42.50
% change year-on-year -1.39% -15.29% -0.70%

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 528 429 387
As % of all contract IT jobs advertised in Hertfordshire 35.89% 34.91% 27.86%
Number of daily rates quoted 280 279 212
Hertfordshire median daily rate £413 £425 £400
Median daily rate % change year-on-year -2.94% +6.18% +6.73%
10th Percentile £275 £261 £258
90th Percentile £576 £575 £575
East of England median daily rate £425 £388 £388
% change year-on-year +9.68% - +3.33%
Number of hourly rates quoted 20 32 33
Hertfordshire median hourly rate £23.07 £45.00 £41.00
Median hourly rate % change year-on-year -48.74% +9.76% +22.39%
10th Percentile £13.00 £30.75 £14.60
90th Percentile £43.88 £53.68 £52.25
East of England median hourly rate £40.00 £40.75 £42.00
% change year-on-year -1.84% -2.98% +6.33%

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 19 April 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 19 April 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 -1 40 £375 -6.25% 19
Hemel Hempstead +9 14 £368 -3.29% 11
Rickmansworth +6 12 £160 - 3
Stevenage -8 9 £400 +33.33% 5
Hatfield 0 5 £400 -23.81% 4
Hertford -2 4 £375 -
Letchworth +1 2 £388 +76.14%
Welwyn Garden City -15 2 £531 +8.97% 2
Borehamwood - 2 £365 - 1
St Albans 0 1 £325 +18.18% 19
JavaScript
East of England

For the 6 months to 19 April 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 81 (68.64%) HTML
2 73 (61.86%) CSS
3 42 (35.59%) Agile Software Development
4 41 (34.75%) Java
5 39 (33.05%) AngularJS
6 36 (30.51%) MVC
7 35 (29.66%) SQL
8 33 (27.97%) .NET
8 33 (27.97%) Git (software)
9 32 (27.12%) Web Services
10 31 (26.27%) Linux
10 31 (26.27%) jQuery
11 30 (25.42%) C#
12 26 (22.03%) HTML5
13 24 (20.34%) XHTML
14 23 (19.49%) TDD
15 22 (18.64%) Microsoft
16 21 (17.80%) E-Commerce
16 21 (17.80%) SQL Server
17 20 (16.95%) Node.js
17 20 (16.95%) React
18 18 (15.25%) PHP
18 18 (15.25%) ASP.NET
18 18 (15.25%) JSON
19 17 (14.41%) Magento
19 17 (14.41%) Visual Studio
19 17 (14.41%) XML
19 17 (14.41%) Windows
19 17 (14.41%) Finance
19 17 (14.41%) Relational Database

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 14 (11.86%) Apache
2 9 (7.63%) IIS
3 6 (5.08%) Elasticsearch
4 5 (4.24%) nginx
5 4 (3.39%) CMS
6 3 (2.54%) Oracle SOA Suite
7 2 (1.69%) Confluence
7 2 (1.69%) MQSeries
7 2 (1.69%) SharePoint
7 2 (1.69%) Tomcat
7 2 (1.69%) WebSphere
8 1 (0.85%) Adobe Experience Manager
8 1 (0.85%) Drupal
8 1 (0.85%) NServiceBus
8 1 (0.85%) SharePoint 2013
8 1 (0.85%) WebSphere Application Server
8 1 (0.85%) WordPress
Applications
1 2 (1.69%) Photoshop
2 1 (0.85%) InVision
2 1 (0.85%) Microsoft Office
Business Applications
1 17 (14.41%) Magento
2 2 (1.69%) SAP Business ByDesign
2 2 (1.69%) SAP Hybris
3 1 (0.85%) Dynamics AX
3 1 (0.85%) Dynamics CRM
3 1 (0.85%) JDE OneWorld
3 1 (0.85%) Maximo
3 1 (0.85%) NetSuite
Cloud Services
1 9 (7.63%) Amazon AWS
2 7 (5.93%) GitHub
3 3 (2.54%) Amazon SQS
3 3 (2.54%) SaaS
4 2 (1.69%) Amazon EC2
4 2 (1.69%) Heroku
4 2 (1.69%) Microsoft Azure
5 1 (0.85%) Amazon ElastiCache
5 1 (0.85%) Amazon S3
5 1 (0.85%) AWS CloudFormation
5 1 (0.85%) AWS Elastic Beanstalk
5 1 (0.85%) AWS Lambda
5 1 (0.85%) Cloud Computing
5 1 (0.85%) CloudFront
5 1 (0.85%) Google Analytics
5 1 (0.85%) Office 365
5 1 (0.85%) Route 53
5 1 (0.85%) Serverless
Communications & Networking
1 7 (5.93%) HTTP
1 7 (5.93%) Internet
2 6 (5.08%) TCP/IP
3 5 (4.24%) Ethernet
4 4 (3.39%) DNS
4 4 (3.39%) IMAP
4 4 (3.39%) SMTP
5 1 (0.85%) LAN
5 1 (0.85%) WAN
5 1 (0.85%) Wi-Fi
Database & Business Intelligence
1 21 (17.80%) SQL Server
2 17 (14.41%) Relational Database
3 14 (11.86%) MySQL
4 8 (6.78%) MongoDB
4 8 (6.78%) SQL Server 2008
5 5 (4.24%) PostgreSQL
5 5 (4.24%) SQL Server 2014
5 5 (4.24%) Sybase ASE
6 4 (3.39%) Amazon DynamoDB
6 4 (3.39%) NoSQL
7 3 (2.54%) DB2
8 2 (1.69%) RDBMS
8 2 (1.69%) Redis
9 1 (0.85%) Amazon RDS
9 1 (0.85%) DbVisualizer
9 1 (0.85%) Hazelcast
9 1 (0.85%) Jackrabbit
9 1 (0.85%) Oracle Database
9 1 (0.85%) Oracle Reports
9 1 (0.85%) Spotfire
Development Applications
1 33 (27.97%) Git (software)
2 17 (14.41%) Visual Studio
3 12 (10.17%) Jenkins
3 12 (10.17%) webpack
4 11 (9.32%) gulp
4 11 (9.32%) Maven
5 7 (5.93%) Eclipse
5 7 (5.93%) Grunt
5 7 (5.93%) Mocha
6 6 (5.08%) Team Foundation Server
7 5 (4.24%) Jasmine
7 5 (4.24%) JIRA
7 5 (4.24%) NetBeans
7 5 (4.24%) Subversion
8 4 (3.39%) Hudson
8 4 (3.39%) Karma Test Runner
8 4 (3.39%) Selenium
8 4 (3.39%) Vagrant
9 3 (2.54%) JUnit
9 3 (2.54%) Mercurial
General
1 17 (14.41%) Finance
2 8 (6.78%) Retail
3 7 (5.93%) Automotive
4 5 (4.24%) Military
5 4 (3.39%) Aerospace
5 4 (3.39%) Marketing
6 3 (2.54%) Games
6 3 (2.54%) Publishing
7 1 (0.85%) Multimedia
7 1 (0.85%) Telecoms
Job Titles
1 101 (85.59%) Developer
2 23 (19.49%) Java Developer
3 19 (16.10%) .NET Developer
4 17 (14.41%) JavaScript Developer
5 16 (13.56%) Front End Developer (Client-Side Developer)
6 14 (11.86%) Full Stack Developer
7 13 (11.02%) C# Developer
8 12 (10.17%) C# .NET Developer
9 10 (8.47%) Magento Developer
10 8 (6.78%) Java Engineer
11 7 (5.93%) Angular Developer
11 7 (5.93%) Lead Developer
12 6 (5.08%) Node.js Developer
12 6 (5.08%) Senior Developer
12 6 (5.08%) UI Developer
13 5 (4.24%) React Developer
13 5 (4.24%) Web Developer
14 4 (3.39%) Consultant
14 4 (3.39%) Software Developer
14 4 (3.39%) SQL Developer
Libraries, Frameworks & Software Standards
1 81 (68.64%) HTML
2 73 (61.86%) CSS
3 39 (33.05%) AngularJS
4 33 (27.97%) .NET
5 32 (27.12%) Web Services
6 31 (26.27%) jQuery
7 26 (22.03%) HTML5
8 24 (20.34%) XHTML
9 20 (16.95%) Node.js
9 20 (16.95%) React
10 18 (15.25%) ASP.NET
10 18 (15.25%) JSON
11 17 (14.41%) REST
11 17 (14.41%) XML
12 16 (13.56%) ASP.NET Web API
12 16 (13.56%) KnockoutJS
12 16 (13.56%) Twitter Bootstrap
13 15 (12.71%) Ajax
14 13 (11.02%) CSS3
14 13 (11.02%) Spring
Miscellaneous
1 14 (11.86%) Greenfield Project
2 9 (7.63%) Analytical Skills
2 9 (7.63%) User Experience
2 9 (7.63%) W3C
3 5 (4.24%) Tandem
4 3 (2.54%) Computer Science
4 3 (2.54%) Linux Command Line
4 3 (2.54%) Vector Graphics
5 2 (1.69%) Blog
5 2 (1.69%) Internet of Things
5 2 (1.69%) Self-Motivation
5 2 (1.69%) Social Media
6 1 (0.85%) Algorithms
6 1 (0.85%) Mobile App
6 1 (0.85%) Web 2.0
Operating Systems
1 31 (26.27%) Linux
2 17 (14.41%) Windows
3 5 (4.24%) Windows Server
4 2 (1.69%) Unix
5 1 (0.85%) Android
5 1 (0.85%) Apple iOS
5 1 (0.85%) CentOS
5 1 (0.85%) HPUX
5 1 (0.85%) Solaris
5 1 (0.85%) Ubuntu
5 1 (0.85%) Windows Server 2008
5 1 (0.85%) Windows Server 2012
Processes & Methodologies
1 42 (35.59%) Agile Software Development
2 36 (30.51%) MVC
3 23 (19.49%) TDD
4 21 (17.80%) E-Commerce
5 17 (14.41%) BDD
6 15 (12.71%) Front End Development
7 13 (11.02%) Web Development
8 12 (10.17%) Software Engineering
9 11 (9.32%) Scrum
10 10 (8.47%) OO
11 9 (7.63%) OO PHP
12 8 (6.78%) API Development
12 8 (6.78%) Open Source
12 8 (6.78%) SDLC
12 8 (6.78%) Web Application Development
13 7 (5.93%) Continuous Integration
13 7 (5.93%) DevOps
13 7 (5.93%) Kanban
13 7 (5.93%) Problem-Solving
13 7 (5.93%) Unit Testing
Programming Languages
1 41 (34.75%) Java
2 35 (29.66%) SQL
3 30 (25.42%) C#
4 18 (15.25%) PHP
5 13 (11.02%) T-SQL
6 11 (9.32%) Ruby
7 7 (5.93%) C++
7 7 (5.93%) ES6
8 6 (5.08%) Kotlin
8 6 (5.08%) Scala
9 5 (4.24%) TypeScript
10 4 (3.39%) GLSL
10 4 (3.39%) HLSL
10 4 (3.39%) Python
11 3 (2.54%) PowerShell
12 2 (1.69%) BeanShell
12 2 (1.69%) VBScript
13 1 (0.85%) Bash Shell
13 1 (0.85%) Groovy
13 1 (0.85%) Java 8
Qualifications
1 8 (6.78%) Degree
2 5 (4.24%) Security Cleared
3 4 (3.39%) SC Cleared
4 2 (1.69%) Computer Science Degree
5 1 (0.85%) HND
Quality Assurance & Compliance
1 3 (2.54%) SLA
2 2 (1.69%) QA
System Software
1 1 (0.85%) Docker
Systems Management
1 2 (1.69%) Ansible
Vendors
1 22 (18.64%) Microsoft
2 12 (10.17%) Zend
3 6 (5.08%) hybris
3 6 (5.08%) IBM
3 6 (5.08%) Oracle
4 5 (4.24%) Sybase
5 3 (2.54%) SAP
6 2 (1.69%) Atlassian
6 2 (1.69%) Google
6 2 (1.69%) Nintex
7 1 (0.85%) Adobe
7 1 (0.85%) Apple
7 1 (0.85%) ATG
7 1 (0.85%) Blue Martini
7 1 (0.85%) Demandware
7 1 (0.85%) Elastic Path
7 1 (0.85%) JD Edwards
7 1 (0.85%) New Relic
7 1 (0.85%) Tableau
7 1 (0.85%) TIBCO