The median contractor rate for a JavaScript Developer was £475 per day in advertised job vacancies in London during the 3 months to 27 March 2017.

The first table below provides contractor rate benchmarking and summary statistics including a comparison to 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.

3 months to
27 Mar 2017
Same period 2016 Same period 2015
JavaScript Developer
England / London
Rank 89 79 117
Rank change year-on-year -10 +38  
Contract jobs requiring a JavaScript Developer 501 618 416
As % of all contract IT jobs advertised in London 2.59% 2.79% 1.93%
As % of the Job Titles category 2.73% 2.94% 2.04%
Number of daily rates quoted 399 507 341
Median daily rate £475 £450 £420
Median daily rate % change year-on-year +5.55% +7.14%  
90% offered a daily rate of more than £350 £325 £325
10% offered a daily rate of more than £600 £550 £550
UK excluding London median daily rate £379 £350 £375
% change year-on-year +8.21% -6.66%  
Number of hourly rates quoted 0 1 0
Median hourly rate - £27.27 -
UK excluding London median hourly rate £42.50 £22.54 -
% change year-on-year +88.55% -  

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

Contract IT Job Roles
London
Contract job vacancies with a job title containing a recognized job role 18357 21038 20420
As % of all contract IT job vacancies advertised in London 94.81% 95.01% 94.91%
Number of daily rates quoted 13065 15076 14090
Median daily rate £475 £450 £450
Median daily rate % change year-on-year +5.55% -  
90% offered a daily rate of more than £301 £300 £275
10% offered a daily rate of more than £640 £625 £600
UK excluding London median daily rate £400 £388 £375
% change year-on-year +3.22% +3.33%  
Number of hourly rates quoted 239 283 378
Median hourly rate £22.50 £17.00 £19.00
Median hourly rate % change year-on-year +32.35% -10.52%  
90% offered a hourly rate of more than £13.70 £11.50 £12.50
10% offered a hourly rate of more than £55.00 £43.57 £55.00
UK excluding London median hourly rate £17.50 £20.00 £17.00
% change year-on-year -12.50% +17.64%  

JavaScript Developer
Job Vacancy Trend in London

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

Job vacancy trend for JavaScript Developer in London

JavaScript Developer
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for JavaScript Developer in London

JavaScript Developer
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing JavaScript Developer in London over the 3 months to 27 March 2017.

Contractor daily rate histogram for JavaScript Developer in London

JavaScript Developer
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for JavaScript Developer in London

JavaScript Developer
Contract Job Locations in London

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing JavaScript Developer within the London region over the 3 months to 27 March 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
Contract
IT Job Ads
Median
Daily Rate
Last 3 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
City of London +8 76 £475 +18.75% 39
Croydon -1 3 £400 +6.66% 2
Canary Wharf -4 2 £500 +25.00%
Chiswick +1 1 £375 +7.14%
Bromley -2 1 £450 +38.46%
Docklands, London -3 1 £600 +45.45%
Paddington - 1 £515 -
Hounslow - 1 £375 -
Uxbridge - 1 £425 -
JavaScript Developer
England

JavaScript Developer Skill Set
Top 30 Related IT Skills in London

For the 6 months to 27 March 2017, JavaScript Developer contract jobs required the following IT skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the London region featuring JavaScript Developer in the job title.

1 1095 (100.00%) JavaScript
2 730 (66.67%) HTML
3 693 (63.29%) CSS
4 541 (49.41%) Agile Software Development
5 513 (46.85%) AngularJS
6 464 (42.37%) HTML5
7 437 (39.91%) React
8 387 (35.34%) Node.js
9 373 (34.06%) CSS3
10 370 (33.79%) Front End Development
11 348 (31.78%) TDD
12 225 (20.55%) Sass
13 204 (18.63%) Finance
14 203 (18.54%) jQuery
15 184 (16.80%) Java
16 183 (16.71%) User Experience
17 179 (16.35%) Scrum
18 168 (15.34%) ES6
19 164 (14.98%) OO
20 163 (14.89%) Git (software)
21 156 (14.25%) BDD
22 155 (14.16%) Banking
23 151 (13.79%) Web Development
24 139 (12.69%) E-Commerce
25 134 (12.24%) Redux
26 120 (10.96%) .NET
27 117 (10.68%) Jasmine
28 115 (10.50%) RESTful
29 111 (10.14%) C#
30 108 (9.86%) gulp

JavaScript Developer Skill Set
Top Related IT Skills in London 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 33 (3.01%) CMS
2 17 (1.55%) Adobe Experience Manager
3 13 (1.19%) SharePoint
4 11 (1.00%) Apache Spark
5 10 (0.91%) WordPress
6 8 (0.73%) Drupal
6 8 (0.73%) Elasticsearch
7 7 (0.64%) Confluence
8 6 (0.55%) Apache
9 5 (0.46%) SharePoint 2013
10 4 (0.37%) Apache Solr
10 4 (0.37%) Oracle SOA Suite
10 4 (0.37%) Oracle Workflow
11 3 (0.27%) IIS
12 2 (0.18%) DataSynapse
12 2 (0.18%) DNN
12 2 (0.18%) Jetty
12 2 (0.18%) Liferay
12 2 (0.18%) Tomcat
12 2 (0.18%) WebSphere
Applications
1 26 (2.37%) Photoshop
2 9 (0.82%) OmniGraffle
3 7 (0.64%) Adobe Creative Suite
4 5 (0.46%) GIMP
5 4 (0.37%) Adobe Illustrator
6 2 (0.18%) MS Excel
6 2 (0.18%) MS Visio
Business Applications
1 3 (0.27%) Magento
Cloud Services
1 52 (4.75%) Amazon AWS
2 34 (3.11%) GitHub
3 21 (1.92%) Microsoft Azure
4 13 (1.19%) Heroku
4 13 (1.19%) SaaS
5 6 (0.55%) Google Analytics
6 4 (0.37%) Google App Engine
6 4 (0.37%) Google Cloud Platform
7 2 (0.18%) Firebase
7 2 (0.18%) IaaS
7 2 (0.18%) Office 365
8 1 (0.091%) Akamai
8 1 (0.091%) AWS CloudFormation
8 1 (0.091%) AWS Elastic Beanstalk
8 1 (0.091%) DigitalOcean
8 1 (0.091%) Google Tag Manager
8 1 (0.091%) PaaS
8 1 (0.091%) Trello
Communications & Networking
1 25 (2.28%) Internet
2 10 (0.91%) HTTP
3 4 (0.37%) AMQP
3 4 (0.37%) Intranet
4 3 (0.27%) 5G
4 3 (0.27%) IP Telephony
4 3 (0.27%) SSL
4 3 (0.27%) Telepresence
4 3 (0.27%) Wi-Fi
5 2 (0.18%) FTP
6 1 (0.091%) DNS
6 1 (0.091%) LDAP
Database & Business Intelligence
1 44 (4.02%) SQL Server
2 40 (3.65%) MongoDB
3 34 (3.11%) NoSQL
4 33 (3.01%) Relational Database
5 28 (2.56%) MySQL
6 26 (2.37%) Big Data
7 18 (1.64%) PostgreSQL
7 18 (1.64%) Redis
8 10 (0.91%) Azure SQL Database
9 8 (0.73%) Hadoop
10 7 (0.64%) Blockchain
10 7 (0.64%) SQL Server 2012
11 6 (0.55%) Oracle Database
12 5 (0.46%) SQL Server 2008
12 5 (0.46%) SQL Server Integration Services
13 4 (0.37%) QlikView
13 4 (0.37%) Riak
13 4 (0.37%) SQL Server 2005
14 3 (0.27%) Qlik Sense
14 3 (0.27%) RDBMS
Development Applications
1 163 (14.89%) Git (software)
2 117 (10.68%) Jasmine
3 108 (9.86%) gulp
4 88 (8.04%) webpack
5 87 (7.95%) Grunt
6 78 (7.12%) Mocha
6 78 (7.12%) Selenium
7 57 (5.21%) Cucumber
8 37 (3.38%) Babel
9 35 (3.20%) JIRA
10 34 (3.11%) Subversion
11 33 (3.01%) Protractor
11 33 (3.01%) TeamCity
12 28 (2.56%) Jenkins
13 27 (2.47%) Karma Test Runner
14 26 (2.37%) Bower
14 26 (2.37%) WebDriver
15 22 (2.01%) Visual Studio
16 20 (1.83%) Maven
17 16 (1.46%) NUnit
General
1 204 (18.63%) Finance
2 155 (14.16%) Banking
3 72 (6.58%) Investment Banking
4 51 (4.66%) Front Office
5 32 (2.92%) Retail
6 23 (2.10%) Marketing
7 20 (1.83%) Publishing
8 13 (1.19%) Legal
9 12 (1.10%) Games
10 8 (0.73%) Telecoms
11 7 (0.64%) Advertising
11 7 (0.64%) Financial Institution
11 7 (0.64%) Retail Banking
12 4 (0.37%) Private Banking
13 3 (0.27%) Back Office
14 2 (0.18%) Automotive
14 2 (0.18%) Interactive Media
14 2 (0.18%) Multimedia
14 2 (0.18%) Pharmaceutical
15 1 (0.091%) Music Industry
Libraries, Frameworks & Software Standards
1 730 (66.67%) HTML
2 693 (63.29%) CSS
3 513 (46.85%) AngularJS
4 464 (42.37%) HTML5
5 437 (39.91%) React
6 387 (35.34%) Node.js
7 373 (34.06%) CSS3
8 225 (20.55%) Sass
9 203 (18.54%) jQuery
10 134 (12.24%) Redux
11 120 (10.96%) .NET
12 115 (10.50%) RESTful
13 99 (9.04%) Web Services
14 98 (8.95%) REST
14 98 (8.95%) Twitter Bootstrap
15 81 (7.40%) D3.js
15 81 (7.40%) LESS
16 68 (6.21%) Backbone.js
17 57 (5.21%) Express
18 56 (5.11%) JSON
Miscellaneous
1 183 (16.71%) User Experience
2 54 (4.93%) Fintech
3 42 (3.84%) Foreign Exchange (FX)
4 36 (3.29%) Computer Science
5 32 (2.92%) Mobile App
6 23 (2.10%) Equities
7 21 (1.92%) Fixed Income
8 20 (1.83%) Derivative
9 18 (1.64%) Enterprise Software
10 15 (1.37%) Equity Derivative
11 12 (1.10%) Analytical Skills
11 12 (1.10%) NHS
12 11 (1.00%) Virtual Team
12 11 (1.00%) W3C
13 10 (0.91%) RIA
14 9 (0.82%) Video on Demand
15 6 (0.55%) Blackberry
16 5 (0.46%) Blog
16 5 (0.46%) Online Banking
16 5 (0.46%) STB
Operating Systems
1 30 (2.74%) Linux
2 23 (2.10%) Windows
3 22 (2.01%) Android
3 22 (2.01%) Apple iOS
4 6 (0.55%) Windows Phone
5 5 (0.46%) Unix
6 4 (0.37%) Windows Phone 8
7 3 (0.27%) CoreOS
8 2 (0.18%) webOS
8 2 (0.18%) Windows 7
8 2 (0.18%) Windows Mobile
8 2 (0.18%) Windows Phone 7
9 1 (0.091%) Windows Server
9 1 (0.091%) Windows Server 2008
9 1 (0.091%) Windows Server 2012
Processes & Methodologies
1 541 (49.41%) Agile Software Development
2 370 (33.79%) Front End Development
3 348 (31.78%) TDD
4 179 (16.35%) Scrum
5 164 (14.98%) OO
6 156 (14.25%) BDD
7 151 (13.79%) Web Development
8 139 (12.69%) E-Commerce
9 98 (8.95%) MVC
10 97 (8.86%) Continuous Integration
11 78 (7.12%) Software Engineering
12 64 (5.84%) Responsive Web Design
13 61 (5.57%) Unit Testing
14 58 (5.30%) Pair Programming
15 57 (5.21%) SDLC
16 53 (4.84%) Visualisation
17 47 (4.29%) Open Source
18 42 (3.84%) DevOps
19 41 (3.74%) Analytics
20 40 (3.65%) Continuous Improvement
Programming Languages
1 1095 (100.00%) JavaScript
2 184 (16.80%) Java
3 168 (15.34%) ES6
4 111 (10.14%) C#
5 82 (7.49%) SQL
6 76 (6.94%) PHP
7 67 (6.12%) TypeScript
8 52 (4.75%) Python
9 34 (3.11%) Ruby
10 17 (1.55%) ECMAScript
11 16 (1.46%) C++
12 12 (1.10%) Scala
13 11 (1.00%) C
14 9 (0.82%) Groovy
14 9 (0.82%) PL/SQL
15 6 (0.55%) Perl
16 5 (0.46%) Bash Shell
16 5 (0.46%) Go
16 5 (0.46%) Shell Script
17 4 (0.37%) GraphQL
Qualifications
1 33 (3.01%) Degree
2 10 (0.91%) Security Cleared
3 8 (0.73%) SC Cleared
4 1 (0.091%) BPSS Clearance
4 1 (0.091%) ISEB
4 1 (0.091%) MBA
4 1 (0.091%) Postgraduate
Quality Assurance & Compliance
1 31 (2.83%) QA
2 8 (0.73%) SDET
3 5 (0.46%) MiFID
4 4 (0.37%) Data Quality
5 3 (0.27%) Cyber Essentials
5 3 (0.27%) WCAG
6 1 (0.091%) Disclosure Scotland
6 1 (0.091%) EMIR
6 1 (0.091%) WAI
System Software
1 36 (3.29%) Docker
2 8 (0.73%) Virtual Machines
3 1 (0.091%) Active Directory
3 1 (0.091%) HDFS
Systems Management
1 12 (1.10%) Opscode Chef
2 8 (0.73%) Ansible
3 5 (0.46%) Puppet
4 4 (0.37%) Mesos
5 3 (0.27%) Kubernetes
6 2 (0.18%) Terraform
7 1 (0.091%) Control-M
7 1 (0.091%) Galera Cluster
Vendors
1 28 (2.56%) Oracle
2 27 (2.47%) Microsoft
3 25 (2.28%) Adobe
4 24 (2.19%) Google
5 6 (0.55%) SAP
6 5 (0.46%) Atlassian
6 5 (0.46%) Nintex
6 5 (0.46%) Twitter
7 4 (0.37%) Apigee
7 4 (0.37%) PayPal
7 4 (0.37%) Salesforce.com
7 4 (0.37%) ServiceNow
7 4 (0.37%) Solace
7 4 (0.37%) Sybase
7 4 (0.37%) Xamarin
8 3 (0.27%) hybris
9 2 (0.18%) HP
9 2 (0.18%) Tableau
9 2 (0.18%) Virgin Media
10 1 (0.091%) SendGrid
London
Vantage Recruitment Solutions Ltd
Rate: From £300 to £350 per day
Posted: 2 days ago
London
Applause IT Ltd
Rate: £300 - £400 per day + Neg. depending on experience
Posted: 3 days ago
London
Understanding Recruitment
Rate: £350.00 - £425.00 per day
Posted: 4 days ago
London
TEKsystems
Rate: £600 - £650 per day
Posted: 2 days ago
London
KPRS
Rate: From £350 to £400 per day
Posted: 4 days ago
City, London
james joseph associates
Posted: 3 days ago
London
Oliver Bernard
Rate: £524 - £578 per day
Posted: 2 days ago
London
Oliver Bernard
Rate: £450 - £550 per day
Posted: 2 days ago
London
Oliver Bernard
Rate: £500 - £600 per day
Posted: 6 days ago
London
Claremont Consulting Ltd
Rate: From £350 to £475 per day
Posted: 2 days ago
London
Oliver Bernard
Rate: £500 - £700 per day
Posted: 3 days ago
London
Square One Resources
Rate: Up to £340 per day
Posted: 6 days ago
Twickenham, Middlesex
Burns Sheehan
Rate: £450.00 - £500.00 per day
Posted: 5 days ago
London
Rullion
Rate: £440 per day
Posted: 6 days ago
London
Wenham Carter
Rate: From £475 to £550 per day TBC
Posted: 5 days ago