Period
to 17 November 2017

The median contractor rate for a JavaScript Developer was £500 per day in advertised job vacancies in London during the 6 months to 17 November 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.

JavaScript Developer
England > London
6 months to
17 Nov 2017
Same period 2016 Same period 2015
Rank 88 93 70
Rank change year-on-year +5 -23 +26
Contract jobs requiring a JavaScript Developer 1370 1296 1448
As % of all contract IT jobs advertised in London 2.93% 2.86% 3.07%
As % of the Job Titles category 3.08% 3.01% 3.23%
Number of daily rates quoted 1143 1100 1198
London median daily rate £500 £450 £425
Median daily rate % change year-on-year +11.11% +5.88% +3.03%
10th Percentile £363 £327 £313
90th Percentile £636 £600 £575
England median daily rate £450 £425 £400
% change year-on-year +5.88% +6.25% +3.23%
Number of hourly rates quoted 0 3 1
London median hourly rate - £85.00 £30.00
Median hourly rate % change year-on-year - +183.33% -25.00%
England median hourly rate £42.06 £42.50 £41.00
% change year-on-year -1.05% +3.66% -0.61%

The following table is for comparison with the above and includes summary statistics for all contract IT job vacancies advertised in London. Most job vacancies include a discernible job title that can be normalized. As such, the figures in the second row provide an indication of the number of contract jobs in our overall sample.

All Contract IT Job Vacancies
London
Contract vacancies in London with a recognized job title 44411 43038 44839
% of contract IT jobs with a recognized job title 94.84% 95.01% 94.99%
Number of daily rates quoted 32161 30620 31621
London median daily rate £492 £458 £450
Median daily rate % change year-on-year +7.54% +1.67% +5.88%
10th Percentile £300 £288 £265
90th Percentile £663 £638 £638
England median daily rate £450 £425 £413
% change year-on-year +5.88% +3.03% +3.13%
Number of hourly rates quoted 556 556 694
London median hourly rate £20.00 £19.50 £18.80
Median hourly rate % change year-on-year +2.56% +3.75% +7.40%
10th Percentile £12.25 £11.40 £11.25
90th Percentile £47.83 £50.00 £47.83
England median hourly rate £18.70 £18.38 £17.98
% change year-on-year +1.77% +2.20% +8.97%

JavaScript Developer
Job Vacancy Trend in London

Job postings that featured JavaScript Developer in the job title as a percentage of all IT jobs advertised in London.

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 6 months to 17 November 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 contractor hourly rates quoted in IT 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 6 months to 17 November 2017. 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
Central London -23 214 £475 +5.56% 35
West London +17 64 £475 +11.76% 16
South London -32 21 £375 -3.23%
East London -2 13 £575 +64.29% 4
North London - 8 £438 -
JavaScript Developer
England

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

For the 6 months to 17 November 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 1370 (100.00%) JavaScript
2 862 (62.92%) HTML
3 764 (55.77%) CSS
4 698 (50.95%) AngularJS
5 640 (46.72%) Agile Software Development
6 608 (44.38%) React
7 534 (38.98%) HTML5
8 527 (38.47%) Node.js
9 508 (37.08%) TDD
10 362 (26.42%) Front End Development
11 340 (24.82%) CSS3
12 281 (20.51%) Java
13 279 (20.36%) Git (software)
14 260 (18.98%) ES6
15 249 (18.18%) OO
16 235 (17.15%) Finance
17 216 (15.77%) BDD
18 209 (15.26%) Sass
19 204 (14.89%) C#
20 198 (14.45%) Banking
21 190 (13.87%) RESTful
22 187 (13.65%) Redux
23 178 (12.99%) Continuous Integration
24 174 (12.70%) jQuery
25 161 (11.75%) User Experience
26 160 (11.68%) SQL
27 156 (11.39%) Web Development
28 150 (10.95%) Scrum
29 146 (10.66%) .NET
30 141 (10.29%) Front Office

JavaScript Developer Skill Set
Co-occurring 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 (2.41%) CMS
2 27 (1.97%) Apache
3 23 (1.68%) Elasticsearch
4 18 (1.31%) Confluence
5 16 (1.17%) Tomcat
6 14 (1.02%) Adobe Experience Manager
7 13 (0.95%) Apache Spark
8 12 (0.88%) JBoss
9 11 (0.80%) WordPress
10 9 (0.66%) WildFly
11 8 (0.58%) Cloud Foundry
11 8 (0.58%) WebSphere
12 6 (0.44%) Drupal
12 6 (0.44%) EPiServer
13 5 (0.36%) Joomla!
13 5 (0.36%) SharePoint
13 5 (0.36%) Sitecore CMS
14 4 (0.29%) Umbraco
14 4 (0.29%) WebSphere Application Server
15 3 (0.22%) Apache Solr
Applications
1 25 (1.82%) Photoshop
2 16 (1.17%) Microsoft Excel
3 5 (0.36%) Adobe Creative Suite
4 4 (0.29%) Adobe Illustrator
4 4 (0.29%) OmniGraffle
5 3 (0.22%) Microsoft Office
6 2 (0.15%) Microsoft PowerPoint
7 1 (0.073%) GIMP
7 1 (0.073%) Microsoft Project
7 1 (0.073%) MS Visio
Business Applications
1 18 (1.31%) Dynamics CRM
2 9 (0.66%) ION MarketView
3 3 (0.22%) Eloqua
3 3 (0.22%) Magento
4 1 (0.073%) Adobe Campaign
4 1 (0.073%) Oracle BPM
4 1 (0.073%) Sage CRM
Cloud Services
1 106 (7.74%) Amazon AWS
2 65 (4.74%) npm
3 43 (3.14%) Microsoft Azure
4 27 (1.97%) SaaS
5 25 (1.82%) GitHub
6 19 (1.39%) PaaS
7 16 (1.17%) IaaS
8 11 (0.80%) Serverless
9 9 (0.66%) Amazon EC2
9 9 (0.66%) Google Cloud Platform
10 7 (0.51%) Amazon CloudWatch
11 4 (0.29%) Cloud Computing
12 3 (0.22%) Amazon S3
12 3 (0.22%) Google Analytics
12 3 (0.22%) Heroku
12 3 (0.22%) OpenShift
12 3 (0.22%) Trello
12 3 (0.22%) Yarn
13 2 (0.15%) Amazon SQS
13 2 (0.15%) Route 53
Communications & Networking
1 20 (1.46%) HTTP
2 13 (0.95%) Internet
3 11 (0.80%) SMS
4 6 (0.44%) Skype
5 4 (0.29%) Ethernet
5 4 (0.29%) TCP/IP
6 2 (0.15%) Intranet
6 2 (0.15%) LDAP
7 1 (0.073%) BIG-IP
7 1 (0.073%) Broadband
7 1 (0.073%) DNS
7 1 (0.073%) Firewall
7 1 (0.073%) NetScaler
7 1 (0.073%) Unified Communications
7 1 (0.073%) VPLS
7 1 (0.073%) VPN
Database & Business Intelligence
1 95 (6.93%) NoSQL
2 75 (5.47%) SQL Server
3 60 (4.38%) MongoDB
4 39 (2.85%) Relational Database
5 36 (2.63%) Big Data
6 35 (2.55%) MySQL
7 30 (2.19%) PostgreSQL
8 21 (1.53%) OLAP
9 17 (1.24%) Amazon DynamoDB
10 14 (1.02%) SQL Server 2008
11 13 (0.95%) RavenDB
11 13 (0.95%) SQL Server Reporting Services
12 12 (0.88%) Apache Cassandra
12 12 (0.88%) Redis
13 11 (0.80%) RDBMS
14 10 (0.73%) Power BI
15 8 (0.58%) PowerPivot
16 6 (0.44%) Hadoop
17 5 (0.36%) Neo4j
17 5 (0.36%) SQL Server Integration Services
Development Applications
1 279 (20.36%) Git (software)
2 108 (7.88%) webpack
3 104 (7.59%) Jasmine
4 101 (7.37%) gulp
5 98 (7.15%) Grunt
6 89 (6.50%) Jenkins
7 69 (5.04%) Mocha
8 59 (4.31%) Selenium
9 56 (4.09%) Karma Test Runner
10 54 (3.94%) JIRA
11 43 (3.14%) Babel
12 34 (2.48%) Maven
13 33 (2.41%) Cucumber
14 32 (2.34%) Subversion
14 32 (2.34%) WebDriver
15 27 (1.97%) NUnit
16 23 (1.68%) TeamCity
17 19 (1.39%) Visual Studio
18 18 (1.31%) JUnit
18 18 (1.31%) Mockito
General
1 235 (17.15%) Finance
2 198 (14.45%) Banking
3 141 (10.29%) Front Office
4 114 (8.32%) Investment Banking
5 36 (2.63%) Retail
6 34 (2.48%) Telecoms
7 28 (2.04%) Games
8 24 (1.75%) Publishing
9 23 (1.68%) Marketing
10 15 (1.09%) Law
10 15 (1.09%) Legal
11 13 (0.95%) Back Office
12 11 (0.80%) Electronics
13 8 (0.58%) Advertising
13 8 (0.58%) Manufacturing
14 5 (0.36%) Retail Banking
15 4 (0.29%) Financial Institution
16 3 (0.22%) International Banking
16 3 (0.22%) Prime Brokerage
17 2 (0.15%) Private Banking
Libraries, Frameworks & Software Standards
1 862 (62.92%) HTML
2 764 (55.77%) CSS
3 698 (50.95%) AngularJS
4 608 (44.38%) React
5 534 (38.98%) HTML5
6 527 (38.47%) Node.js
7 340 (24.82%) CSS3
8 209 (15.26%) Sass
9 190 (13.87%) RESTful
10 187 (13.65%) Redux
11 174 (12.70%) jQuery
12 146 (10.66%) .NET
13 132 (9.64%) REST
14 121 (8.83%) Web Services
15 116 (8.47%) LESS
16 102 (7.45%) Twitter Bootstrap
17 93 (6.79%) JSON
18 72 (5.26%) Spring
19 68 (4.96%) Angular 2
20 66 (4.82%) Backbone.js
Miscellaneous
1 161 (11.75%) User Experience
2 131 (9.56%) Greenfield Project
3 79 (5.77%) Fintech
4 48 (3.50%) Analytical Skills
5 46 (3.36%) Foreign Exchange (FX)
6 44 (3.21%) Derivative
7 41 (2.99%) Fixed Income
8 39 (2.85%) Equity Derivative
9 35 (2.55%) Mobile App
10 30 (2.19%) Computer Science
11 25 (1.82%) Market Risk
12 18 (1.31%) Equities
13 17 (1.24%) Hedge funds
14 16 (1.17%) Data Structures
15 11 (0.80%) Video on Demand
15 11 (0.80%) Video\Live Streaming
15 11 (0.80%) Virtual Team
16 10 (0.73%) W3C
17 6 (0.44%) Client/Server
17 6 (0.44%) iPad
Operating Systems
1 59 (4.31%) Linux
2 22 (1.61%) Android
2 22 (1.61%) Apple iOS
3 18 (1.31%) Unix
4 13 (0.95%) Windows
5 9 (0.66%) Mac OS
6 5 (0.36%) Mac OS X
7 2 (0.15%) CentOS
7 2 (0.15%) Windows 10
7 2 (0.15%) Windows Server
8 1 (0.073%) Red Hat Enterprise Linux
8 1 (0.073%) VMS
Processes & Methodologies
1 640 (46.72%) Agile Software Development
2 508 (37.08%) TDD
3 362 (26.42%) Front End Development
4 249 (18.18%) OO
5 216 (15.77%) BDD
6 178 (12.99%) Continuous Integration
7 156 (11.39%) Web Development
8 150 (10.95%) Scrum
9 133 (9.71%) Pair Programming
10 127 (9.27%) MVC
11 114 (8.32%) Test Automation
12 107 (7.81%) Continuous Improvement
13 97 (7.08%) E-Commerce
14 83 (6.06%) Software Engineering
15 80 (5.84%) Unit Testing
16 78 (5.69%) Responsive Web Design
17 77 (5.62%) DevOps
18 74 (5.40%) Analytics
19 73 (5.33%) Microservices
20 71 (5.18%) Continuous Delivery
Programming Languages
1 1370 (100.00%) JavaScript
2 281 (20.51%) Java
3 260 (18.98%) ES6
4 204 (14.89%) C#
5 160 (11.68%) SQL
6 119 (8.69%) TypeScript
7 69 (5.04%) Python
8 32 (2.34%) PHP
9 24 (1.75%) Ruby
10 18 (1.31%) ECMAScript
11 13 (0.95%) PL/SQL
11 13 (0.95%) Scala
12 11 (0.80%) Go
13 10 (0.73%) GraphQL
14 9 (0.66%) T-SQL
15 8 (0.58%) C
16 7 (0.51%) PowerShell
17 6 (0.44%) Data Analysis Expressions (DAX)
18 4 (0.29%) Objective-C
19 3 (0.22%) Shell Script
Qualifications
1 36 (2.63%) Degree
2 15 (1.09%) Security Cleared
3 10 (0.73%) SC Cleared
4 8 (0.58%) Computer Science Degree
5 3 (0.22%) CTC Cleared
6 1 (0.073%) BPSS Clearance
6 1 (0.073%) CFA
6 1 (0.073%) Numerate Degree
Quality Assurance & Compliance
1 29 (2.12%) QA
2 11 (0.80%) WCAG
3 5 (0.36%) WAI
4 2 (0.15%) MiFID
5 1 (0.073%) GDPR
5 1 (0.073%) ISO/IEC 27001
System Software
1 110 (8.03%) Docker
2 11 (0.80%) Active Directory
3 3 (0.22%) Varnish
Systems Management
1 26 (1.90%) Kubernetes
2 23 (1.68%) Ansible
3 15 (1.09%) Opscode Chef
4 13 (0.95%) Terraform
5 9 (0.66%) Business Desktop Deployment
6 5 (0.36%) ITRS Geneos
7 3 (0.22%) Puppet
8 1 (0.073%) Kibana
8 1 (0.073%) logstash
8 1 (0.073%) Prometheus
Vendors
1 45 (3.28%) Microsoft
2 27 (1.97%) Google
3 22 (1.61%) Adobe
3 22 (1.61%) Oracle
4 16 (1.17%) Apigee
4 16 (1.17%) Salesforce.com
5 12 (0.88%) SAP
6 11 (0.80%) Atlassian
6 11 (0.80%) ServiceNow
7 10 (0.73%) Sybase
8 9 (0.66%) Demandware
8 9 (0.66%) ION Trading
8 9 (0.66%) Splunk
9 8 (0.58%) Cisco
10 7 (0.51%) IBM
11 6 (0.44%) AppDynamics
12 5 (0.36%) Apple
12 5 (0.36%) ATG
12 5 (0.36%) hybris
12 5 (0.36%) Sitecore