Period
to 14 December 2018

The median contractor rate for a JavaScript Developer was £500 per day in advertised job vacancies in London during the 6 months to 14 December 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
14 Dec 2018
Same period 2017 Same period 2016
Rank 105 90 94
Rank change year-on-year -15 +4 -25
Contract jobs requiring a JavaScript Developer 1,154 1,337 1,286
As % of all contract IT jobs advertised in London 2.46% 2.81% 2.88%
As % of the Job Titles category 2.60% 2.96% 3.04%
Number of daily rates quoted 1,025 1,116 1,094
London median daily rate £500 £500 £450
Median daily rate % change year-on-year - +11.11% +5.88%
10th Percentile £363 £363 £329
90th Percentile £650 £625 £600
England median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% +6.25%
Number of hourly rates quoted 2 0 3
London median hourly rate £47.50 - £85.00
10th Percentile £46.25 - £56.40
90th Percentile £48.75 - £97.60
England median hourly rate £47.50 £42.06 £42.50
% change year-on-year +12.95% -1.05% +1.19%

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 44,356 45,123 42,362
% of contract IT jobs with a recognized job title 94.73% 94.95% 94.97%
Number of daily rates quoted 32,053 32,759 30,092
London median daily rate £500 £500 £463
Median daily rate % change year-on-year - +8.11% +2.78%
10th Percentile £313 £300 £298
90th Percentile £675 £663 £638
England median daily rate £460 £450 £425
% change year-on-year +2.22% +5.88% +3.03%
Number of hourly rates quoted 600 556 572
London median hourly rate £20.00 £20.00 £19.13
Median hourly rate % change year-on-year - +4.55% +0.53%
10th Percentile £12.75 £12.00 £11.32
90th Percentile £53.75 £47.83 £50.00
England median hourly rate £18.50 £18.70 £18.00
% change year-on-year -1.07% +3.89% -

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 14 December 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 14 December 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 +16 277 £525 +10.53% 94
West London -11 56 £450 -5.26% 46
South London +16 53 £463 +23.33% 2
East London -12 27 £538 +2.38% 27
North London -5 5 £403 -10.56% 3
JavaScript Developer
England

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

For the 6 months to 14 December 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 1,154 (100.00%) JavaScript
2 627 (54.33%) HTML
3 571 (49.48%) React
4 558 (48.35%) CSS
5 521 (45.15%) Agile Software Development
6 482 (41.77%) AngularJS
7 469 (40.64%) Node.js
8 392 (33.97%) TDD
9 359 (31.11%) Front End Development
10 322 (27.90%) HTML5
11 280 (24.26%) Redux
12 235 (20.36%) Finance
13 183 (15.86%) jQuery
14 181 (15.68%) ES6
15 175 (15.16%) CSS3
16 169 (14.64%) Git (software)
17 163 (14.12%) BDD
18 158 (13.69%) .NET
19 157 (13.60%) Java
19 157 (13.60%) MVC
20 154 (13.34%) TypeScript
21 152 (13.17%) OO
22 150 (13.00%) Sass
22 150 (13.00%) C#
23 146 (12.65%) Web Development
24 132 (11.44%) Twitter Bootstrap
25 131 (11.35%) Microservices
26 126 (10.92%) Amazon AWS
27 125 (10.83%) RESTful
28 123 (10.66%) Greenfield Project

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 38 (3.29%) CMS
2 22 (1.91%) WordPress
3 19 (1.65%) Drupal
4 17 (1.47%) Elasticsearch
5 11 (0.95%) Apache
6 8 (0.69%) Adobe Experience Manager
6 8 (0.69%) Apache Spark
7 7 (0.61%) Confluence
7 7 (0.61%) Tomcat
8 6 (0.52%) IBM Domino
8 6 (0.52%) Sitecore CMS
9 5 (0.43%) SharePoint
9 5 (0.43%) Umbraco
10 4 (0.35%) Cloud Foundry
10 4 (0.35%) CoreMedia CMS
11 3 (0.26%) Ethereum
12 2 (0.17%) JBoss
12 2 (0.17%) OpenStack
12 2 (0.17%) WebLogic
12 2 (0.17%) WildFly
Applications
1 21 (1.82%) Photoshop
2 13 (1.13%) Fireworks
3 5 (0.43%) Chatbot
4 4 (0.35%) InVision
5 2 (0.17%) Adobe Creative Suite
6 1 (0.087%) Adobe Illustrator
6 1 (0.087%) Maya
6 1 (0.087%) SketchUp
Business Applications
1 2 (0.17%) Magento
1 2 (0.17%) Remedy ITSM
1 2 (0.17%) SDL Web 8
2 1 (0.087%) Dynamics CRM
2 1 (0.087%) ION MarketView
2 1 (0.087%) Shopify
Cloud Services
1 126 (10.92%) Amazon AWS
2 108 (9.36%) Microsoft Azure
3 66 (5.72%) Serverless
4 42 (3.64%) AWS Lambda
5 34 (2.95%) npm
6 28 (2.43%) GitHub
7 26 (2.25%) Google Cloud Platform
8 16 (1.39%) Amazon SQS
9 14 (1.21%) SaaS
10 8 (0.69%) Google Tag Manager
11 7 (0.61%) Amazon CloudWatch
11 7 (0.61%) Amazon Kinesis
11 7 (0.61%) Yarn
12 6 (0.52%) Amazon S3
12 6 (0.52%) PaaS
13 5 (0.43%) Amazon EC2
13 5 (0.43%) Apigee
14 4 (0.35%) Adobe Creative Cloud
14 4 (0.35%) Route 53
15 3 (0.26%) Twilio
Communications & Networking
1 9 (0.78%) HTTP
1 9 (0.78%) Internet
2 7 (0.61%) AMQP
3 5 (0.43%) SSL
4 2 (0.17%) RTMP
5 1 (0.087%) HTTPS
5 1 (0.087%) Skype
Database & Business Intelligence
1 56 (4.85%) NoSQL
2 53 (4.59%) MongoDB
3 48 (4.16%) MySQL
4 47 (4.07%) SQL Server
5 27 (2.34%) PostgreSQL
6 23 (1.99%) Amazon DynamoDB
7 17 (1.47%) Azure SQL Database
8 16 (1.39%) Blockchain
9 12 (1.04%) Apache Cassandra
9 12 (1.04%) SQL Server 2008
10 8 (0.69%) Redis
11 7 (0.61%) Big Data
11 7 (0.61%) Hadoop
11 7 (0.61%) Relational Database
12 6 (0.52%) Cosmos DB
12 6 (0.52%) Parquet
13 5 (0.43%) Data Lake
14 4 (0.35%) Amazon RDS
14 4 (0.35%) Endeca
15 3 (0.26%) SQL Server Integration Services
Development Applications
1 169 (14.64%) Git (software)
2 84 (7.28%) gulp
3 69 (5.98%) Jenkins
4 68 (5.89%) webpack
5 63 (5.46%) Selenium
6 57 (4.94%) Mocha
7 55 (4.77%) Jasmine
8 51 (4.42%) Grunt
9 42 (3.64%) Karma Test Runner
10 34 (2.95%) Babel
11 31 (2.69%) Cucumber
12 30 (2.60%) JIRA
13 19 (1.65%) Subversion
14 15 (1.30%) Bitbucket
14 15 (1.30%) PhantomJS
14 15 (1.30%) Protractor
15 14 (1.21%) CircleCI
16 13 (1.13%) Dreamweaver
16 13 (1.13%) Visual Studio
17 11 (0.95%) Maven
General
1 235 (20.36%) Finance
2 83 (7.19%) Banking
3 65 (5.63%) Front Office
4 43 (3.73%) Retail
5 29 (2.51%) Publishing
6 25 (2.17%) Games
7 17 (1.47%) Marketing
8 14 (1.21%) Law
9 12 (1.04%) Advertising
9 12 (1.04%) Investment Banking
10 6 (0.52%) Telecoms
11 4 (0.35%) Automotive
11 4 (0.35%) Back Office
12 3 (0.26%) Financial Institution
12 3 (0.26%) Multimedia
13 2 (0.17%) Interactive Media
13 2 (0.17%) Legal
13 2 (0.17%) Manufacturing
14 1 (0.087%) Dutch Language
14 1 (0.087%) Pharmaceutical
Libraries, Frameworks & Software Standards
1 627 (54.33%) HTML
2 571 (49.48%) React
3 558 (48.35%) CSS
4 482 (41.77%) AngularJS
5 469 (40.64%) Node.js
6 322 (27.90%) HTML5
7 280 (24.26%) Redux
8 183 (15.86%) jQuery
9 175 (15.16%) CSS3
10 158 (13.69%) .NET
11 150 (13.00%) Sass
12 132 (11.44%) Twitter Bootstrap
13 125 (10.83%) RESTful
14 102 (8.84%) REST
15 84 (7.28%) Express
16 76 (6.59%) ASP.NET
17 65 (5.63%) React Native
18 62 (5.37%) Web Services
19 58 (5.03%) Vue.js
20 55 (4.77%) ASP.NET Web API
Miscellaneous
1 123 (10.66%) Greenfield Project
2 115 (9.97%) User Experience
3 65 (5.63%) Fintech
4 41 (3.55%) Mobile App
5 31 (2.69%) Fixed Income
6 27 (2.34%) Algorithms
7 22 (1.91%) Analytical Skills
8 17 (1.47%) Self-Motivation
9 16 (1.39%) Video on Demand
10 14 (1.21%) Blog
11 13 (1.13%) Video\Live Streaming
12 12 (1.04%) W3C
13 11 (0.95%) Data Structures
13 11 (0.95%) Enterprise Software
14 10 (0.87%) Derivative
14 10 (0.87%) Foreign Exchange (FX)
15 9 (0.78%) Linux Command Line
16 8 (0.69%) Cloud Native
16 8 (0.69%) Online Games
16 8 (0.69%) Over-the-Top Content
Operating Systems
1 29 (2.51%) Linux
2 15 (1.30%) Android
3 13 (1.13%) Apple iOS
4 9 (0.78%) Unix
5 6 (0.52%) Windows
6 2 (0.17%) VMS
7 1 (0.087%) CentOS
7 1 (0.087%) Mac OS
7 1 (0.087%) Mac OS X
7 1 (0.087%) Red Hat Enterprise Linux
Processes & Methodologies
1 521 (45.15%) Agile Software Development
2 392 (33.97%) TDD
3 359 (31.11%) Front End Development
4 163 (14.12%) BDD
5 157 (13.60%) MVC
6 152 (13.17%) OO
7 146 (12.65%) Web Development
8 131 (11.35%) Microservices
9 115 (9.97%) Scrum
10 103 (8.93%) Test Automation
11 97 (8.41%) E-Commerce
12 96 (8.32%) Software Engineering
13 91 (7.89%) Continuous Integration
14 89 (7.71%) Pair Programming
15 80 (6.93%) DevOps
16 50 (4.33%) Analytics
17 45 (3.90%) Unit Testing
18 43 (3.73%) Responsive Web Design
19 38 (3.29%) Open Source
19 38 (3.29%) SOLID
Programming Languages
1 1,154 (100.00%) JavaScript
2 181 (15.68%) ES6
3 157 (13.60%) Java
4 154 (13.34%) TypeScript
5 150 (13.00%) C#
6 92 (7.97%) SQL
7 74 (6.41%) Python
8 51 (4.42%) PHP
9 43 (3.73%) Java 8
10 26 (2.25%) ES7
11 16 (1.39%) C++
12 12 (1.04%) C
12 12 (1.04%) PHP 7
12 12 (1.04%) Ruby
13 11 (0.95%) Scala
14 10 (0.87%) Go
15 8 (0.69%) PL/SQL
15 8 (0.69%) T-SQL
16 7 (0.61%) Perl
16 7 (0.61%) VB.NET
Qualifications
1 33 (2.86%) Degree
2 13 (1.13%) Security Cleared
3 12 (1.04%) SC Cleared
4 8 (0.69%) Computer Science Degree
5 2 (0.17%) DBS Check
5 2 (0.17%) Sun Certification
6 1 (0.087%) MOS
Quality Assurance & Compliance
1 38 (3.29%) QA
2 11 (0.95%) WCAG
3 3 (0.26%) GDPR
4 1 (0.087%) WAI
System Software
1 106 (9.19%) Docker
2 4 (0.35%) Active Directory
3 3 (0.26%) Apache ZooKeeper
4 2 (0.17%) HDFS
5 1 (0.087%) Ceph
5 1 (0.087%) etcd
5 1 (0.087%) Varnish
Systems Management
1 28 (2.43%) Kubernetes
2 12 (1.04%) Terraform
3 9 (0.78%) Ansible
4 8 (0.69%) Puppet
5 6 (0.52%) Docker Swarm
6 4 (0.35%) Single Sign-On
7 3 (0.26%) Grafana
8 2 (0.17%) Kibana
8 2 (0.17%) logstash
8 2 (0.17%) Prometheus
9 1 (0.087%) Consul
9 1 (0.087%) Graphite
9 1 (0.087%) HAProxy
9 1 (0.087%) Marathon
9 1 (0.087%) Mesos
9 1 (0.087%) Opscode Chef
Vendors
1 39 (3.38%) Google
1 39 (3.38%) Microsoft
2 25 (2.17%) Adobe
3 11 (0.95%) Cypress Semiconductor
4 8 (0.69%) Apiary
4 8 (0.69%) hybris
5 6 (0.52%) Sitecore
6 5 (0.43%) Oracle
6 5 (0.43%) ServiceNow
6 5 (0.43%) Splunk
7 4 (0.35%) IBM
8 3 (0.26%) Atlassian
9 2 (0.17%) BMC
9 2 (0.17%) MapR
9 2 (0.17%) Remedy
9 2 (0.17%) Salesforce.com
9 2 (0.17%) SmartCo
9 2 (0.17%) Sybase
10 1 (0.087%) Roku
10 1 (0.087%) Solace