Period
to 18 November 2017

The median contractor rate for a JavaScript Developer was £475 per day in advertised job vacancies in the City of London during the 6 months to 18 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
Central London > City of London
6 months to
18 Nov 2017
Same period 2016 Same period 2015
Rank 101 92 133
Rank change year-on-year -9 +41 +45
Contract jobs requiring a JavaScript Developer 165 189 153
As % of all contract IT jobs advertised in the City of London 2.33% 2.82% 1.65%
As % of the Job Titles category 2.46% 2.95% 1.74%
Number of daily rates quoted 145 174 121
City of London median daily rate £475 £450 £425
Median daily rate % change year-on-year +5.56% +5.88% -2.86%
10th Percentile £336 £325 £295
90th Percentile £635 £625 £625
Central London median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% -
Number of hourly rates quoted 0 0 0
City of London median hourly rate - - -
Central London median hourly rate - - -

The following table is for comparison with the above and includes summary statistics for all contract IT job vacancies advertised in the City of 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
City of London
Contract vacancies in the City of London with a recognized job title 6694 6411 8806
% of contract IT jobs with a recognized job title 94.55% 95.54% 95.24%
Number of daily rates quoted 5291 5101 6921
City of London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +2.86%
10th Percentile £313 £313 £273
90th Percentile £675 £663 £650
Central London median daily rate £500 £475 £450
% change year-on-year +5.26% +5.56% +5.88%
Number of hourly rates quoted 94 79 126
City of London median hourly rate £17.00 £17.25 £18.00
Median hourly rate % change year-on-year -1.45% -4.17% +5.88%
10th Percentile £11.25 £11.45 £10.25
90th Percentile £29.29 £47.83 £37.88
Central London median hourly rate £18.05 £17.08 £18.00
% change year-on-year +5.66% -5.10% +10.23%

JavaScript Developer
Job Vacancy Trend in the City of London

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

Job vacancy trend for JavaScript Developer in the City of London

JavaScript Developer
Contractor Daily Rate Trend in the City of London

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

Contractor daily rate trend for JavaScript Developer in the City of London

JavaScript Developer
Contractor Daily Rate Histogram in the City of London

The daily rate distribution of IT jobs citing JavaScript Developer in the City of London over the 6 months to 18 November 2017.

Contractor daily rate histogram for JavaScript Developer in the City of London

JavaScript Developer
Contractor Hourly Rate Trend in the City of London

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

Contractor hourly rate trend for JavaScript Developer in the City of London

JavaScript Developer
Contract Job Locations in the City of 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 City of London region over the 6 months to 18 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
Moorgate - 2 £550 -
JavaScript Developer
Central London

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

For the 6 months to 18 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 City of London region featuring JavaScript Developer in the job title.

1 165 (100.00%) JavaScript
2 108 (65.45%) HTML
3 106 (64.24%) AngularJS
4 93 (56.36%) CSS
5 72 (43.64%) Agile Software Development
6 67 (40.61%) React
7 66 (40.00%) Node.js
8 59 (35.76%) TDD
9 58 (35.15%) HTML5
10 52 (31.52%) Finance
11 49 (29.70%) Java
11 49 (29.70%) Front End Development
12 42 (25.45%) SQL
13 38 (23.03%) C#
14 31 (18.79%) Banking
15 30 (18.18%) jQuery
15 30 (18.18%) CSS3
16 29 (17.58%) .NET
17 28 (16.97%) Redux
18 27 (16.36%) ES6
18 27 (16.36%) Git (software)
19 26 (15.76%) Web Development
19 26 (15.76%) SQL Server
19 26 (15.76%) OO
20 24 (14.55%) User Experience
21 23 (13.94%) Twitter Bootstrap
21 23 (13.94%) Sass
21 23 (13.94%) Front Office
21 23 (13.94%) MVC
22 22 (13.33%) REST

JavaScript Developer Skill Set
Co-occurring IT Skills in the City of 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 6 (3.64%) CMS
2 4 (2.42%) Elasticsearch
3 2 (1.21%) Apache
3 2 (1.21%) EPiServer
3 2 (1.21%) Sitecore CMS
4 1 (0.61%) Apache Solr
4 1 (0.61%) IIS
4 1 (0.61%) JBoss
4 1 (0.61%) Tomcat
4 1 (0.61%) WebSphere
4 1 (0.61%) WebSphere Application Server
Applications
1 5 (3.03%) Microsoft Excel
2 3 (1.82%) Adobe Creative Suite
3 2 (1.21%) OmniGraffle
4 1 (0.61%) Microsoft Office
4 1 (0.61%) Microsoft Project
4 1 (0.61%) MS Visio
Business Applications
1 2 (1.21%) Eloqua
Cloud Services
1 14 (8.48%) Amazon AWS
2 9 (5.45%) npm
3 4 (2.42%) Microsoft Azure
4 2 (1.21%) Amazon EC2
4 2 (1.21%) Amazon S3
4 2 (1.21%) SaaS
4 2 (1.21%) Serverless
5 1 (0.61%) Amazon ELB
5 1 (0.61%) AWS Lambda
5 1 (0.61%) CloudFront
5 1 (0.61%) GitHub
5 1 (0.61%) IaaS
5 1 (0.61%) PaaS
5 1 (0.61%) Route 53
Communications & Networking
1 12 (7.27%) HTTP
2 6 (3.64%) Internet
3 1 (0.61%) BIG-IP
3 1 (0.61%) Ethernet
3 1 (0.61%) Firewall
3 1 (0.61%) LDAP
3 1 (0.61%) NetScaler
3 1 (0.61%) TCP/IP
3 1 (0.61%) Unified Communications
3 1 (0.61%) VPLS
3 1 (0.61%) VPN
Database & Business Intelligence
1 26 (15.76%) SQL Server
2 16 (9.70%) NoSQL
3 6 (3.64%) MongoDB
4 5 (3.03%) Big Data
5 3 (1.82%) MySQL
6 2 (1.21%) Couchbase
6 2 (1.21%) Qlik Sense
6 2 (1.21%) QlikView
6 2 (1.21%) Relational Database
6 2 (1.21%) SQL Server 2008
6 2 (1.21%) SQL Server 2016
6 2 (1.21%) SQL Server Integration Services
6 2 (1.21%) SQL Server Reporting Services
7 1 (0.61%) DocumentDB
7 1 (0.61%) PostgreSQL
7 1 (0.61%) Redis
Development Applications
1 27 (16.36%) Git (software)
2 16 (9.70%) Jasmine
3 14 (8.48%) Mocha
3 14 (8.48%) webpack
4 13 (7.88%) gulp
4 13 (7.88%) Jenkins
5 10 (6.06%) Cucumber
6 9 (5.45%) Karma Test Runner
6 9 (5.45%) Selenium
7 8 (4.85%) Babel
7 8 (4.85%) Grunt
7 8 (4.85%) Team Foundation Server
8 7 (4.24%) NUnit
9 6 (3.64%) Bower
9 6 (3.64%) JIRA
10 5 (3.03%) Maven
11 4 (2.42%) Sinon.JS
11 4 (2.42%) Subversion
11 4 (2.42%) TeamCity
11 4 (2.42%) WebDriver
General
1 52 (31.52%) Finance
2 31 (18.79%) Banking
3 23 (13.94%) Front Office
4 14 (8.48%) Legal
5 11 (6.67%) Law
6 9 (5.45%) Retail
7 6 (3.64%) Investment Banking
7 6 (3.64%) Marketing
8 4 (2.42%) Advertising
9 2 (1.21%) Multimedia
9 2 (1.21%) Retail Banking
9 2 (1.21%) Telecoms
10 1 (0.61%) Back Office
10 1 (0.61%) Digital Economy
10 1 (0.61%) Games
10 1 (0.61%) Publishing
10 1 (0.61%) Wholesale Banking
Libraries, Frameworks & Software Standards
1 108 (65.45%) HTML
2 106 (64.24%) AngularJS
3 93 (56.36%) CSS
4 67 (40.61%) React
5 66 (40.00%) Node.js
6 58 (35.15%) HTML5
7 30 (18.18%) CSS3
7 30 (18.18%) jQuery
8 29 (17.58%) .NET
9 28 (16.97%) Redux
10 23 (13.94%) Sass
10 23 (13.94%) Twitter Bootstrap
11 22 (13.33%) REST
12 21 (12.73%) RESTful
13 19 (11.52%) JSON
14 18 (10.91%) XML
15 17 (10.30%) LESS
15 17 (10.30%) Web Services
16 16 (9.70%) ASP.NET Web API
17 15 (9.09%) SOAP
Miscellaneous
1 24 (14.55%) User Experience
2 20 (12.12%) Greenfield Project
3 9 (5.45%) Fintech
4 8 (4.85%) Derivative
5 7 (4.24%) Equity Derivative
6 6 (3.64%) Market Risk
7 5 (3.03%) Foreign Exchange (FX)
7 5 (3.03%) Hedge funds
7 5 (3.03%) RIA
8 4 (2.42%) Fixed Income
9 2 (1.21%) Cloud Native
9 2 (1.21%) Computer Science
9 2 (1.21%) e-Learning
9 2 (1.21%) Mashup
9 2 (1.21%) Mobile App
9 2 (1.21%) Online Banking
9 2 (1.21%) Social Media
10 1 (0.61%) Analytical Skills
10 1 (0.61%) Enterprise Software
10 1 (0.61%) Virtual Team
Operating Systems
1 7 (4.24%) Linux
2 4 (2.42%) Apple iOS
3 3 (1.82%) Android
4 2 (1.21%) Unix
4 2 (1.21%) Windows
5 1 (0.61%) Mac OS X
5 1 (0.61%) Red Hat Enterprise Linux
5 1 (0.61%) Windows Server
Processes & Methodologies
1 72 (43.64%) Agile Software Development
2 59 (35.76%) TDD
3 49 (29.70%) Front End Development
4 26 (15.76%) OO
4 26 (15.76%) Web Development
5 23 (13.94%) MVC
6 21 (12.73%) Analytics
7 17 (10.30%) BDD
7 17 (10.30%) Continuous Integration
7 17 (10.30%) Scrum
8 16 (9.70%) API Development
9 14 (8.48%) Unit Testing
10 13 (7.88%) API Integration
10 13 (7.88%) User Stories
11 11 (6.67%) Agile Testing
11 11 (6.67%) Document Management
11 11 (6.67%) Test Scripting
12 9 (5.45%) MVVM
12 9 (5.45%) OOD
12 9 (5.45%) Open Source
Programming Languages
1 165 (100.00%) JavaScript
2 49 (29.70%) Java
3 42 (25.45%) SQL
4 38 (23.03%) C#
5 27 (16.36%) ES6
6 12 (7.27%) TypeScript
7 9 (5.45%) Python
8 4 (2.42%) PHP
9 3 (1.82%) ECMAScript
9 3 (1.82%) Ruby
10 2 (1.21%) C
10 2 (1.21%) Scala
10 2 (1.21%) T-SQL
11 1 (0.61%) C++
11 1 (0.61%) GraphQL
11 1 (0.61%) Perl
Qualifications
1 4 (2.42%) Degree
Quality Assurance & Compliance
1 2 (1.21%) QA
System Software
1 11 (6.67%) Active Directory
1 11 (6.67%) Docker
2 1 (0.61%) Varnish
Systems Management
1 3 (1.82%) Puppet
2 2 (1.21%) Ansible
3 1 (0.61%) Opscode Chef
Vendors
1 12 (7.27%) Apigee
2 10 (6.06%) Microsoft
3 5 (3.03%) Salesforce.com
4 4 (2.42%) Atlassian
4 4 (2.42%) DevExpress
5 3 (1.82%) Adobe
6 2 (1.21%) Apiary
6 2 (1.21%) Marketo
6 2 (1.21%) Oracle
6 2 (1.21%) Sitecore
7 1 (0.61%) Citrix
7 1 (0.61%) F5
7 1 (0.61%) Google
7 1 (0.61%) IBM
7 1 (0.61%) Red Hat
7 1 (0.61%) SAP
7 1 (0.61%) ServiceNow