Period
to 20 September 2018

The median contractor rate for a JavaScript Developer was £500 per day in advertised job vacancies in London during the 6 months to 20 September 2018.

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
20 Sep 2018
Same period 2017 Same period 2016
Rank 100 90 92
Rank change year-on-year -10 +2 +4
Contract jobs requiring a JavaScript Developer 1,240 1,293 1,237
As % of all contract IT jobs advertised in London 2.70% 2.92% 2.75%
As % of the Job Titles category 2.85% 3.07% 2.89%
Number of daily rates quoted 1,089 1,048 1,058
London median daily rate £500 £490 £450
Median daily rate % change year-on-year +2.04% +8.89% +5.88%
10th Percentile £363 £363 £325
90th Percentile £650 £638 £600
England median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% +13.33%
Number of hourly rates quoted 3 1 3
London median hourly rate £47.50 £30.00 £85.00
Median hourly rate % change year-on-year +58.33% -64.71% +331.14%
10th Percentile £46.25 £30.00 £56.40
90th Percentile £48.75 £30.00 £97.60
England median hourly rate £47.50 £40.00 £46.25
% change year-on-year +18.75% -13.51% +15.63%

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 43,461 42,097 42,841
% of contract IT jobs with a recognized job title 94.62% 95.02% 95.19%
Number of daily rates quoted 31,402 30,222 30,778
London median daily rate £500 £488 £450
Median daily rate % change year-on-year +2.56% +8.33% -
10th Percentile £313 £305 £286
90th Percentile £675 £650 £638
England median daily rate £450 £450 £425
% change year-on-year - +5.88% +6.25%
Number of hourly rates quoted 606 523 506
London median hourly rate £19.37 £21.00 £19.23
Median hourly rate % change year-on-year -7.77% +9.20% +0.73%
10th Percentile £13.00 £12.57 £10.75
90th Percentile £52.50 £48.57 £50.00
England median hourly rate £18.25 £18.70 £19.00
% change year-on-year -2.41% -1.58% +6.92%

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 20 September 2018.

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 20 September 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
Central London 0 265 £500 +5.26% 65
South London +18 68 £475 +18.75% 5
West London -17 48 £505 +12.22% 23
East London +20 46 £425 -34.62% 24
North London -4 3 £403 -5.29% 1
JavaScript Developer
England

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

For the 6 months to 20 September 2018, JavaScript Developer contract jobs required the following IT skills in order of popularity. The figures indicate the absolute number co-occurrences and as a proportion of all contract job ads across the London region featuring JavaScript Developer in the job title.

1 1,240 (100.00%) JavaScript
2 663 (53.47%) HTML
3 627 (50.56%) React
4 616 (49.68%) CSS
5 541 (43.63%) Agile Software Development
6 508 (40.97%) AngularJS
7 502 (40.48%) Node.js
8 379 (30.56%) Front End Development
9 370 (29.84%) TDD
10 364 (29.35%) HTML5
11 294 (23.71%) Redux
12 244 (19.68%) Finance
13 216 (17.42%) ES6
13 216 (17.42%) CSS3
14 208 (16.77%) Sass
15 172 (13.87%) Web Development
15 172 (13.87%) C#
16 170 (13.71%) OO
17 168 (13.55%) Java
18 166 (13.39%) Git (software)
18 166 (13.39%) jQuery
19 161 (12.98%) RESTful
19 161 (12.98%) .NET
20 157 (12.66%) BDD
21 151 (12.18%) TypeScript
22 150 (12.10%) User Experience
23 144 (11.61%) REST
24 142 (11.45%) MVC
25 134 (10.81%) Microservices
26 133 (10.73%) SQL

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 36 (2.90%) CMS
2 25 (2.02%) Elasticsearch
3 16 (1.29%) WordPress
4 15 (1.21%) Apache
5 12 (0.97%) Drupal
6 11 (0.89%) Tomcat
7 10 (0.81%) Apache Spark
8 9 (0.73%) Adobe Experience Manager
8 9 (0.73%) Confluence
9 7 (0.56%) SharePoint
10 6 (0.48%) IBM Domino
11 5 (0.40%) Umbraco
12 4 (0.32%) Apache Solr
12 4 (0.32%) OpenStack
12 4 (0.32%) Sitecore CMS
13 3 (0.24%) CoreMedia CMS
13 3 (0.24%) Ethereum
13 3 (0.24%) WebSphere
14 2 (0.16%) Oracle Workflow
14 2 (0.16%) WildFly
Applications
1 24 (1.94%) Photoshop
2 8 (0.65%) Fireworks
3 4 (0.32%) Chatbot
3 4 (0.32%) InVision
4 3 (0.24%) Acrobat
5 2 (0.16%) Adobe Creative Suite
6 1 (0.081%) Adobe Illustrator
6 1 (0.081%) Maya
6 1 (0.081%) SketchUp
Business Applications
1 20 (1.61%) ION MarketView
2 3 (0.24%) Magento
3 2 (0.16%) Dynamics NAV
3 2 (0.16%) Payment Gateway
3 2 (0.16%) Remedy ITSM
4 1 (0.081%) Eloqua
4 1 (0.081%) RMDS
4 1 (0.081%) SAP Oil and Gas
4 1 (0.081%) SDL Web 8
4 1 (0.081%) Shopify
Cloud Services
1 112 (9.03%) Amazon AWS
2 107 (8.63%) Microsoft Azure
3 57 (4.60%) Serverless
4 41 (3.31%) GitHub
5 40 (3.23%) npm
6 33 (2.66%) AWS Lambda
7 21 (1.69%) SaaS
8 19 (1.53%) Amazon SQS
9 18 (1.45%) PaaS
10 12 (0.97%) Google Cloud Platform
11 6 (0.48%) Amazon EC2
11 6 (0.48%) Heroku
11 6 (0.48%) Yarn
12 5 (0.40%) Amazon S3
13 4 (0.32%) Adobe Creative Cloud
13 4 (0.32%) Amazon CloudWatch
13 4 (0.32%) Twilio
14 3 (0.24%) Amazon Kinesis
14 3 (0.24%) AWS CloudFormation
15 2 (0.16%) Azure Active Directory
Communications & Networking
1 34 (2.74%) HTTP
2 12 (0.97%) Internet
3 8 (0.65%) RTMP
4 4 (0.32%) AMQP
5 3 (0.24%) SSL
6 2 (0.16%) HTTPS
6 2 (0.16%) SMS
7 1 (0.081%) Wi-Fi
Database & Business Intelligence
1 70 (5.65%) MongoDB
2 59 (4.76%) SQL Server
3 57 (4.60%) MySQL
4 50 (4.03%) NoSQL
5 27 (2.18%) PostgreSQL
6 25 (2.02%) Relational Database
7 22 (1.77%) Amazon DynamoDB
7 22 (1.77%) Cosmos DB
8 21 (1.69%) Azure SQL Database
9 20 (1.61%) Big Data
10 13 (1.05%) Blockchain
10 13 (1.05%) Redis
11 11 (0.89%) Hadoop
12 10 (0.81%) Apache Cassandra
12 10 (0.81%) HBase
13 7 (0.56%) Endeca
14 6 (0.48%) SQL Server Integration Services
15 5 (0.40%) SQL Server 2012
15 5 (0.40%) SQL Server 2016
16 4 (0.32%) Riak
Development Applications
1 166 (13.39%) Git (software)
2 112 (9.03%) gulp
3 106 (8.55%) webpack
4 72 (5.81%) Jasmine
5 67 (5.40%) Grunt
6 58 (4.68%) Mocha
7 54 (4.35%) Selenium
8 53 (4.27%) Babel
9 52 (4.19%) JIRA
10 50 (4.03%) Karma Test Runner
11 45 (3.63%) Jenkins
12 39 (3.15%) Subversion
13 33 (2.66%) Visual Studio
14 28 (2.26%) Cucumber
15 19 (1.53%) WebDriver
16 18 (1.45%) Visual Studio Team System
17 16 (1.29%) Maven
17 16 (1.29%) Mercurial
17 16 (1.29%) Sublime Text
18 15 (1.21%) PhantomJS
General
1 244 (19.68%) Finance
2 125 (10.08%) Banking
3 92 (7.42%) Front Office
4 68 (5.48%) Retail
5 50 (4.03%) Investment Banking
6 22 (1.77%) Games
7 20 (1.61%) Law
8 18 (1.45%) Advertising
9 15 (1.21%) Publishing
10 14 (1.13%) Marketing
11 11 (0.89%) Telecoms
12 10 (0.81%) Financial Institution
13 6 (0.48%) Back Office
14 4 (0.32%) Prime Brokerage
15 3 (0.24%) Legal
15 3 (0.24%) Multimedia
16 2 (0.16%) French Language
16 2 (0.16%) Interactive Media
16 2 (0.16%) Manufacturing
16 2 (0.16%) Music Industry
Libraries, Frameworks & Software Standards
1 663 (53.47%) HTML
2 627 (50.56%) React
3 616 (49.68%) CSS
4 508 (40.97%) AngularJS
5 502 (40.48%) Node.js
6 364 (29.35%) HTML5
7 294 (23.71%) Redux
8 216 (17.42%) CSS3
9 208 (16.77%) Sass
10 166 (13.39%) jQuery
11 161 (12.98%) .NET
11 161 (12.98%) RESTful
12 144 (11.61%) REST
13 96 (7.74%) Twitter Bootstrap
14 88 (7.10%) ASP.NET
15 85 (6.85%) React Native
16 82 (6.61%) Web Services
17 76 (6.13%) Express
18 73 (5.89%) JSON
19 70 (5.65%) Angular 2
Miscellaneous
1 150 (12.10%) User Experience
2 130 (10.48%) Greenfield Project
3 76 (6.13%) Mobile App
4 73 (5.89%) Fintech
5 51 (4.11%) Fixed Income
6 38 (3.06%) Computer Science
7 34 (2.74%) Algorithms
8 22 (1.77%) Data Structures
9 19 (1.53%) Blog
10 17 (1.37%) Analytical Skills
11 16 (1.29%) W3C
12 15 (1.21%) Derivative
13 13 (1.05%) Foreign Exchange (FX)
14 11 (0.89%) Enterprise Software
15 8 (0.65%) Hedge funds
15 8 (0.65%) Self-Motivation
15 8 (0.65%) Video on Demand
16 7 (0.56%) Cloud Native
16 7 (0.56%) Equities
17 6 (0.48%) Video\Live Streaming
Operating Systems
1 56 (4.52%) Linux
2 48 (3.87%) Android
3 43 (3.47%) Apple iOS
4 11 (0.89%) Unix
4 11 (0.89%) Windows
5 1 (0.081%) HPUX
5 1 (0.081%) Solaris
Processes & Methodologies
1 541 (43.63%) Agile Software Development
2 379 (30.56%) Front End Development
3 370 (29.84%) TDD
4 172 (13.87%) Web Development
5 170 (13.71%) OO
6 157 (12.66%) BDD
7 142 (11.45%) MVC
8 134 (10.81%) Microservices
9 132 (10.65%) Scrum
10 110 (8.87%) E-Commerce
11 109 (8.79%) DevOps
12 99 (7.98%) Continuous Integration
13 95 (7.66%) Software Engineering
14 88 (7.10%) Test Automation
15 71 (5.73%) Unit Testing
16 57 (4.60%) Pair Programming
17 56 (4.52%) Responsive Web Design
18 50 (4.03%) Problem-Solving
19 49 (3.95%) Analytics
19 49 (3.95%) Open Source
Programming Languages
1 1,240 (100.00%) JavaScript
2 216 (17.42%) ES6
3 172 (13.87%) C#
4 168 (13.55%) Java
5 151 (12.18%) TypeScript
6 133 (10.73%) SQL
7 70 (5.65%) Python
8 55 (4.44%) PHP
9 35 (2.82%) ES7
10 34 (2.74%) JSX
11 32 (2.58%) Java 8
12 21 (1.69%) Ruby
13 17 (1.37%) C++
13 17 (1.37%) Scala
14 14 (1.13%) T-SQL
15 13 (1.05%) PHP 7
16 9 (0.73%) PL/SQL
17 8 (0.65%) C
17 8 (0.65%) Go
18 5 (0.40%) ES8
Qualifications
1 40 (3.23%) Degree
2 21 (1.69%) Security Cleared
3 19 (1.53%) SC Cleared
4 16 (1.29%) Computer Science Degree
5 5 (0.40%) ITIL Certification
6 2 (0.16%) Sun Certification
7 1 (0.081%) CTC Cleared
7 1 (0.081%) DBS Check
7 1 (0.081%) MOS
Quality Assurance & Compliance
1 25 (2.02%) QA
2 7 (0.56%) GDPR
3 6 (0.48%) WCAG
4 5 (0.40%) Data Quality
5 3 (0.24%) Solvency II
6 2 (0.16%) GCP
6 2 (0.16%) PCI DSS
7 1 (0.081%) ISO/IEC 27001
7 1 (0.081%) WAI
System Software
1 83 (6.69%) Docker
2 8 (0.65%) Active Directory
3 6 (0.48%) HDFS
4 2 (0.16%) Apache ZooKeeper
4 2 (0.16%) etcd
4 2 (0.16%) Varnish
5 1 (0.081%) Ceph
Systems Management
1 13 (1.05%) Kubernetes
2 11 (0.89%) Puppet
3 9 (0.73%) Ansible
4 8 (0.65%) Terraform
5 7 (0.56%) Single Sign-On
6 3 (0.24%) Consul
6 3 (0.24%) Docker Swarm
6 3 (0.24%) Grafana
6 3 (0.24%) Kibana
7 2 (0.16%) Business Desktop Deployment
7 2 (0.16%) Opscode Chef
7 2 (0.16%) Prometheus
8 1 (0.081%) Graphite
8 1 (0.081%) HAProxy
8 1 (0.081%) Marathon
8 1 (0.081%) Mesos
8 1 (0.081%) PingFederate
Vendors
1 49 (3.95%) Microsoft
2 29 (2.34%) Adobe
3 20 (1.61%) ION Trading
4 16 (1.29%) Google
5 15 (1.21%) Capita
6 14 (1.13%) hybris
7 10 (0.81%) Oracle
8 8 (0.65%) Apiary
8 8 (0.65%) Sybase
9 6 (0.48%) MapR
9 6 (0.48%) ServiceNow
10 5 (0.40%) IBM
11 4 (0.32%) Sitecore
11 4 (0.32%) Tableau
12 3 (0.24%) Atlassian
12 3 (0.24%) Cerner
12 3 (0.24%) DevExpress
12 3 (0.24%) Remedy
13 2 (0.16%) BMC
13 2 (0.16%) Salesforce.com