The following table provides summary statistics for contract job vacancies advertised in London with a requirement for JavaScript skills. Included is a benchmarking guide to the contractor rates offered in vacancies that have cited JavaScript over the 3 months to 25 June 2017 with a comparison to the 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 (including ECMAScript)
England / London
3 months to
25 Jun 2017
Same period 2016 Same period 2015
Rank 8 7 10
Rank change year-on-year -1 +3  
Contract jobs citing JavaScript 2657 2710 2511
As % of all contract IT jobs advertised in London 12.98% 12.68% 10.72%
As % of the Programming Languages category 27.16% 29.10% 25.52%
Number of daily rates quoted 2026 2182 1844
Median daily rate £475 £438 £400
Median daily rate % change year-on-year +8.57% +9.37%  
90% offered a daily rate of more than £340 £325 £300
10% offered a daily rate of more than £600 £579 £575
UK excluding London median daily rate £375 £363 £341
% change year-on-year +3.44% +6.46%  
Number of hourly rates quoted 10 8 10
Median hourly rate £27.16 £32.12 £22.18
Median hourly rate % change year-on-year -15.43% +44.80%  
90% offered a hourly rate of more than £15.85 £20.54 £19.64
10% offered a hourly rate of more than £32.10 £190.00 £45.75
UK excluding London median hourly rate £43.39 £37.50 £40.00
% change year-on-year +15.70% -6.25%  

JavaScript is in the programming language skills category. The next table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for programming language skills.

Contract Programming Language Skills
London
Contract job vacancies with a requirement for programming language skills 9783 9312 9840
As % of all contract IT job vacancies advertised in London 47.81% 43.56% 42.02%
Number of daily rates quoted 7233 7103 7192
Median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.55%  
90% offered a daily rate of more than £350 £325 £303
10% offered a daily rate of more than £650 £625 £625
UK excluding London median daily rate £400 £375 £350
% change year-on-year +6.66% +7.14%  
Number of hourly rates quoted 74 39 85
Median hourly rate £33.75 £40.00 £30.00
Median hourly rate % change year-on-year -15.62% +33.33%  
90% offered a hourly rate of more than £19.82 £14.95 £18.00
10% offered a hourly rate of more than £47.83 £113.00 £52.19
UK excluding London median hourly rate £42.50 £37.50 £37.00
% change year-on-year +13.33% +1.35%  

JavaScript
Job Vacancy Trend in London

The job posting trend of jobs advertised in London citing JavaScript as a proportion of all contract or permanent IT jobs with a match in the Programming Languages category.

Job vacancy trend for JavaScript in London

JavaScript
Contractor Daily Rate Trend in London

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

Contractor daily rate trend for JavaScript in London

JavaScript
Contractor Daily Rate Histogram in London

The daily rate distribution of IT jobs citing JavaScript in London over the 3 months to 25 June 2017.

Contractor daily rate histogram for JavaScript in London

JavaScript
Contractor Hourly Rate Trend in London

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

Contractor hourly rate trend for JavaScript in London

JavaScript
Contractor Hourly Rate Histogram in London

The hourly rate distribution of IT jobs citing JavaScript in London over the 3 months to 25 June 2017.

Contractor hourly rate histogram for JavaScript in London

JavaScript
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 within the London region over the 3 months to 25 June 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 0 452 £500 +12.35% 209
Croydon -4 36 £450 +12.50% 2
Canary Wharf +7 13 £650 +30.00%
Uxbridge +3 10 £318 -7.63% 3
Westminster +6 5 £519 +31.74% 4
Greenwich - 5 £190 -
Brentford +1 4 £385 -18.94% 1
Hammersmith -5 4 £425 - 2
Twickenham +5 3 £475 +46.15% 1
West End of London -5 3 £363 -14.70% 31
Kingston Upon Thames -8 3 £475 +18.01% 3
Moorgate - 3 £550 -
Chiswick +3 2 £400 +6.66%
Wimbledon 0 2 £338 -15.62% 2
Bromley -1 2 £650 - 3
Hounslow +4 1 £375 -11.76% 2
Harrow +3 1 £425 - 1
Feltham -2 1 £351 -37.68%
Docklands, London -4 1 £490 -0.60%
Southwark - 1 £350 - 1
Hayes - 1 £390 -
Ilford - 1 £450 -
Romford - 1 £350 -
Surbiton - 1 £425 - 2
JavaScript
England

For the 6 months to 25 June 2017, IT contractor jobs citing JavaScript also mentioned the following skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the London region with a requirement for JavaScript.

1 3157 (62.79%) HTML
2 2855 (56.78%) CSS
3 2376 (47.26%) Agile Software Development
4 1887 (37.53%) AngularJS
5 1668 (33.17%) HTML5
6 1452 (28.88%) TDD
7 1435 (28.54%) Java
8 1250 (24.86%) Node.js
9 1217 (24.20%) React
10 1109 (22.06%) CSS3
11 1086 (21.60%) Front End Development
12 939 (18.68%) .NET
13 935 (18.60%) jQuery
14 896 (17.82%) C#
15 875 (17.40%) SQL
16 849 (16.89%) Finance
17 832 (16.55%) Scrum
18 801 (15.93%) Git (software)
19 737 (14.66%) MVC
20 703 (13.98%) OO
21 682 (13.56%) BDD
22 644 (12.81%) Web Development
23 634 (12.61%) Web Services
24 622 (12.37%) Banking
25 597 (11.87%) User Experience
26 548 (10.90%) Sass
27 530 (10.54%) REST
28 521 (10.36%) Test Automation
29 517 (10.28%) RESTful
30 509 (10.12%) SQL Server

JavaScript
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
1 271 (5.39%) CMS
2 179 (3.56%) Elasticsearch
3 149 (2.96%) SharePoint
4 113 (2.25%) Adobe Experience Manager
5 112 (2.23%) Confluence
6 111 (2.21%) Apache
7 83 (1.65%) Tomcat
8 79 (1.57%) JBoss
9 69 (1.37%) WordPress
10 68 (1.35%) WebSphere
11 57 (1.13%) Apache Spark
11 57 (1.13%) Drupal
12 53 (1.05%) IIS
13 50 (0.99%) SharePoint 2013
14 40 (0.80%) Apache Solr
15 34 (0.68%) WebLogic
16 33 (0.66%) nginx
17 31 (0.62%) Oracle SOA Suite
18 28 (0.56%) SharePoint 2010
18 28 (0.56%) Umbraco
Applications
1 129 (2.57%) Photoshop
2 40 (0.80%) Microsoft Excel
3 34 (0.68%) Adobe Illustrator
4 33 (0.66%) Microsoft Office
5 25 (0.50%) Adobe Creative Suite
6 23 (0.46%) MS Visio
7 22 (0.44%) OmniGraffle
8 15 (0.30%) InVision
9 7 (0.14%) Microsoft PowerPoint
10 6 (0.12%) GIMP
11 5 (0.099%) InfoPath
11 5 (0.099%) Pixate
11 5 (0.099%) SPSS
11 5 (0.099%) UXPin
12 4 (0.080%) InDesign
13 3 (0.060%) Fireworks
13 3 (0.060%) Microsoft Project
14 2 (0.040%) Adobe After Effects
14 2 (0.040%) Adobe Captivate
14 2 (0.040%) Spreadsheet
Business Applications
1 74 (1.47%) Dynamics CRM
2 24 (0.48%) Magento
3 17 (0.34%) SAP Oil and Gas
4 10 (0.20%) Eloqua
4 10 (0.20%) Payment Gateway
5 9 (0.18%) Oracle BPM
6 8 (0.16%) Salesforce.com CRM
6 8 (0.16%) SAP Hybris
7 5 (0.099%) ION MarketView
7 5 (0.099%) NetSuite
8 4 (0.080%) Revive Adserver
8 4 (0.080%) RMDS
9 3 (0.060%) SAP CRM
9 3 (0.060%) SDL Web 8
9 3 (0.060%) Shopify
10 2 (0.040%) Adobe Campaign
10 2 (0.040%) IBM Operational Decision Manager
10 2 (0.040%) Oracle Applications
10 2 (0.040%) Pega PRPC
10 2 (0.040%) Remedy ITSM
Cloud Services
1 434 (8.63%) Amazon AWS
2 253 (5.03%) Microsoft Azure
3 165 (3.28%) GitHub
4 54 (1.07%) SaaS
5 42 (0.84%) Amazon EC2
5 42 (0.84%) Cloud Computing
6 35 (0.70%) AWS CloudFormation
7 34 (0.68%) Heroku
8 33 (0.66%) Salesforce Service Cloud
9 30 (0.60%) Google Analytics
9 30 (0.60%) Office 365
10 29 (0.58%) Google Cloud Platform
11 28 (0.56%) AWS Lambda
12 26 (0.52%) PaaS
13 23 (0.46%) Adobe Analytics
14 19 (0.38%) Salesforce Sales Cloud
15 16 (0.32%) Amazon S3
16 14 (0.28%) IaaS
17 12 (0.24%) Force.com
18 11 (0.22%) Amazon SQS
Communications & Networking
1 134 (2.67%) HTTP
2 90 (1.79%) Internet
3 33 (0.66%) TCP/IP
4 30 (0.60%) LDAP
5 29 (0.58%) SSL
6 26 (0.52%) Intranet
7 22 (0.44%) Network Security
8 20 (0.40%) DNS
9 16 (0.32%) WebEx
10 13 (0.26%) SSH
11 12 (0.24%) AMQP
11 12 (0.24%) HTTPS
12 10 (0.20%) SMTP
13 8 (0.16%) Firewall
14 7 (0.14%) FTP
14 7 (0.14%) IP Telephony
15 6 (0.12%) Skype
16 5 (0.099%) Wireshark
17 4 (0.080%) NAS
17 4 (0.080%) SAN
Database & Business Intelligence
1 509 (10.12%) SQL Server
2 310 (6.17%) NoSQL
3 307 (6.11%) MySQL
4 299 (5.95%) MongoDB
5 222 (4.42%) Relational Database
6 157 (3.12%) Big Data
7 118 (2.35%) PostgreSQL
8 89 (1.77%) Hadoop
9 67 (1.33%) RDBMS
10 64 (1.27%) SQL Server 2008
11 62 (1.23%) Apache Cassandra
12 57 (1.13%) Redis
12 57 (1.13%) SQL Server Reporting Services
13 55 (1.09%) SQL Server 2012
14 49 (0.97%) SQL Server Integration Services
15 41 (0.82%) Amazon DynamoDB
16 34 (0.68%) Data Warehouse
17 30 (0.60%) QlikView
17 30 (0.60%) RavenDB
18 25 (0.50%) Power BI
Development Applications
1 801 (15.93%) Git (software)
2 383 (7.62%) Jenkins
3 304 (6.05%) JIRA
4 302 (6.01%) Grunt
4 302 (6.01%) Jasmine
5 298 (5.93%) gulp
6 274 (5.45%) Selenium
7 217 (4.32%) Maven
8 209 (4.16%) webpack
9 200 (3.98%) Subversion
10 188 (3.74%) Cucumber
11 186 (3.70%) TeamCity
12 175 (3.48%) Mocha
13 125 (2.49%) JUnit
14 114 (2.27%) Karma Test Runner
15 107 (2.13%) Visual Studio
16 106 (2.11%) Team Foundation Server
17 99 (1.97%) WebDriver
18 91 (1.81%) NUnit
19 85 (1.69%) Octopus Deploy
General
1 849 (16.89%) Finance
2 622 (12.37%) Banking
3 262 (5.21%) Front Office
4 242 (4.81%) Investment Banking
5 200 (3.98%) Marketing
6 182 (3.62%) Retail
7 82 (1.63%) Advertising
8 75 (1.49%) Games
9 69 (1.37%) Publishing
10 62 (1.23%) Telecoms
11 33 (0.66%) Back Office
12 29 (0.58%) Legal
13 28 (0.56%) Law
13 28 (0.56%) Retail Banking
14 25 (0.50%) Electronics
15 24 (0.48%) Financial Institution
15 24 (0.48%) Pharmaceutical
16 23 (0.46%) Manufacturing
17 13 (0.26%) French Language
18 8 (0.16%) Automotive
Job Titles
1 4009 (79.73%) Developer
2 1090 (21.68%) JavaScript Developer
3 871 (17.32%) Front End Developer (Client-Side Developer)
4 539 (10.72%) Java Developer
5 525 (10.44%) Angular Developer
6 501 (9.96%) Senior Developer
7 458 (9.11%) Full Stack Developer
8 402 (8.00%) .NET Developer
9 364 (7.24%) HTML Developer
10 327 (6.50%) C# Developer
11 306 (6.09%) UI Developer
12 289 (5.75%) Node.js Developer
13 251 (4.99%) Web Developer
14 224 (4.46%) HTML CSS Developer
15 174 (3.46%) C# .NET Developer
16 149 (2.96%) Agile Developer
17 134 (2.67%) Python Developer
18 133 (2.65%) Architect
19 119 (2.37%) Senior JavaScript Developer
20 116 (2.31%) Consultant
Libraries, Frameworks & Software Standards
1 3157 (62.79%) HTML
2 2855 (56.78%) CSS
3 1887 (37.53%) AngularJS
4 1668 (33.17%) HTML5
5 1250 (24.86%) Node.js
6 1217 (24.20%) React
7 1109 (22.06%) CSS3
8 939 (18.68%) .NET
9 935 (18.60%) jQuery
10 634 (12.61%) Web Services
11 548 (10.90%) Sass
12 530 (10.54%) REST
13 517 (10.28%) RESTful
14 475 (9.45%) XML
15 465 (9.25%) ASP.NET
16 393 (7.82%) Redux
17 386 (7.68%) Spring
18 382 (7.60%) JSON
19 332 (6.60%) Twitter Bootstrap
20 294 (5.85%) Ajax
Miscellaneous
1 597 (11.87%) User Experience
2 373 (7.42%) Greenfield Project
3 220 (4.38%) Analytical Skills
4 196 (3.90%) Mobile App
5 175 (3.48%) Computer Science
6 166 (3.30%) Fintech
7 157 (3.12%) Foreign Exchange (FX)
8 103 (2.05%) Fixed Income
9 85 (1.69%) Derivative
10 77 (1.53%) Enterprise Software
11 69 (1.37%) Equities
12 61 (1.21%) Data Structures
13 54 (1.07%) Hedge funds
14 47 (0.93%) NHS
15 44 (0.88%) Virtual Team
16 41 (0.82%) W3C
17 36 (0.72%) Equity Derivative
17 36 (0.72%) Management Information System
18 34 (0.68%) Digital Media
18 34 (0.68%) iPad
Operating Systems
1 399 (7.94%) Linux
2 184 (3.66%) Unix
3 155 (3.08%) Windows
4 134 (2.67%) Apple iOS
5 110 (2.19%) Android
6 51 (1.01%) Red Hat Enterprise Linux
7 28 (0.56%) CentOS
8 27 (0.54%) Windows Server
9 25 (0.50%) Ubuntu
10 23 (0.46%) Mac OS X
11 17 (0.34%) Windows Server 2012
12 16 (0.32%) Mac OS
13 14 (0.28%) Windows Server 2008
14 10 (0.20%) Windows 10
15 9 (0.18%) Solaris
15 9 (0.18%) SUSE Linux Enterprise Server
16 8 (0.16%) AIX
17 4 (0.080%) CoreOS
17 4 (0.080%) Windows Mobile
18 3 (0.060%) Windows 7
Processes & Methodologies
1 2376 (47.26%) Agile Software Development
2 1452 (28.88%) TDD
3 1086 (21.60%) Front End Development
4 832 (16.55%) Scrum
5 737 (14.66%) MVC
6 703 (13.98%) OO
7 682 (13.56%) BDD
8 644 (12.81%) Web Development
9 521 (10.36%) Test Automation
10 483 (9.61%) Continuous Integration
11 473 (9.41%) E-Commerce
12 432 (8.59%) DevOps
13 352 (7.00%) Software Engineering
14 325 (6.46%) Microservices
15 272 (5.41%) Responsive Web Design
16 260 (5.17%) Unit Testing
17 252 (5.01%) Kanban
18 236 (4.69%) SOA
19 232 (4.61%) Open Source
20 219 (4.36%) Analytics
Programming Languages
1 1435 (28.54%) Java
2 896 (17.82%) C#
3 875 (17.40%) SQL
4 497 (9.88%) Python
5 390 (7.76%) ES6
6 333 (6.62%) PHP
7 321 (6.38%) Ruby
8 223 (4.44%) Scala
9 207 (4.12%) TypeScript
10 106 (2.11%) T-SQL
11 84 (1.67%) PowerShell
12 83 (1.65%) Perl
13 74 (1.47%) Groovy
14 73 (1.45%) Shell Script
15 72 (1.43%) C++
16 66 (1.31%) Bash Shell
17 63 (1.25%) PL/SQL
18 50 (0.99%) Apex Code
19 48 (0.95%) C
20 39 (0.78%) VB
Qualifications
1 255 (5.07%) Degree
2 133 (2.65%) Security Cleared
3 85 (1.69%) Computer Science Degree
4 82 (1.63%) SC Cleared
5 15 (0.30%) BPSS Clearance
6 13 (0.26%) DV Cleared
6 13 (0.26%) Master's Degree
6 13 (0.26%) PMI Certification
7 12 (0.24%) CISSP
8 10 (0.20%) OCPJP
9 9 (0.18%) Microsoft Certification
9 9 (0.18%) PMP
10 8 (0.16%) ISEB
10 8 (0.16%) ISTQB
11 7 (0.14%) CTC Cleared
12 6 (0.12%) MBA
13 5 (0.099%) CISA
13 5 (0.099%) CISM
13 5 (0.099%) Sun Certification
14 4 (0.080%) MCP
Quality Assurance & Compliance
1 240 (4.77%) QA
2 28 (0.56%) MiFID
3 25 (0.50%) SLA
4 21 (0.42%) WCAG
5 15 (0.30%) WAI
6 13 (0.26%) Data Quality
7 11 (0.22%) Disclosure Scotland
8 8 (0.16%) PCI DSS
9 6 (0.12%) FATCA
9 6 (0.12%) ISO/IEC 27001
10 5 (0.099%) FedRAMP
10 5 (0.099%) PMO
11 3 (0.060%) HMG Security Policy Framework
12 2 (0.040%) COBIT
12 2 (0.040%) EMIR
13 1 (0.020%) Cyber Essentials
13 1 (0.020%) Dodd-Frank
13 1 (0.020%) GDPR
13 1 (0.020%) HL7
System Software
1 230 (4.57%) Docker
2 31 (0.62%) Active Directory
3 16 (0.32%) HDFS
4 11 (0.22%) VMware Infrastructure
5 8 (0.16%) Apache Flume
5 8 (0.16%) Virtual Machines
6 5 (0.099%) KVM
6 5 (0.099%) Shibboleth
7 4 (0.080%) Apache ZooKeeper
7 4 (0.080%) Hyper-V
8 3 (0.060%) VMware ESXi
9 2 (0.040%) UAG
9 2 (0.040%) vSphere
9 2 (0.040%) XenApp
9 2 (0.040%) XenDesktop
10 1 (0.020%) NFS
10 1 (0.020%) Oracle RAC
10 1 (0.020%) SRDF
10 1 (0.020%) Varnish
10 1 (0.020%) Xen
Systems Management
1 103 (2.05%) Puppet
2 97 (1.93%) Opscode Chef
3 93 (1.85%) Ansible
4 61 (1.21%) Kubernetes
5 52 (1.03%) Terraform
6 33 (0.66%) Kibana
7 31 (0.62%) logstash
8 17 (0.34%) Packer
9 14 (0.28%) BladeLogic
10 13 (0.26%) Mesos
11 10 (0.20%) Piwik
12 9 (0.18%) Nagios
12 9 (0.18%) OpenAM
13 8 (0.16%) Control-M
13 8 (0.16%) SCCM
14 7 (0.14%) HP Quality Center
15 6 (0.12%) ZABBIX
16 5 (0.099%) Capistrano
16 5 (0.099%) CFEngine
16 5 (0.099%) HP SiteScope
Vendors
1 322 (6.40%) Microsoft
2 241 (4.79%) Oracle
3 192 (3.82%) Adobe
4 132 (2.63%) ServiceNow
5 103 (2.05%) Google
6 83 (1.65%) Salesforce.com
7 66 (1.31%) SAP
8 64 (1.27%) IBM
9 58 (1.15%) Red Hat
10 47 (0.93%) Atlassian
11 36 (0.72%) Sitecore
12 35 (0.70%) Sybase
13 32 (0.64%) New Relic
14 26 (0.52%) Twitter
15 24 (0.48%) Tableau
15 24 (0.48%) TIBCO
16 22 (0.44%) Demandware
16 22 (0.44%) hybris
16 22 (0.44%) Splunk
17 21 (0.42%) Xamarin
London
Mortimer Spinks
Rate: £350 - £400 per day
Posted: Yesterday
City, London
TEKsystems
Rate: £575 - £650 per day
Posted: Yesterday
City, London
ARC IT Recruitment Ltd
Rate: £350 per day
Posted: Yesterday
London
ISL
Rate: £300 - £400 per day
Posted: 2 days ago
City, London
Premier IT
Rate: £400 - £450 per day
Posted: 2 days ago
London
IT Talent Solutions
Rate: From £400 to £425 per day
Posted: Yesterday
London
Careerwise UK Limited
Rate: £500 - £550 per day
Posted: Yesterday
City, London
Venturi
Rate: £450 - £475 per day
Posted: 2 days ago
London
Square One Resources
Rate: Unspecified
Posted: 2 days ago
London
Opus Recruitment Solutions Ltd
Rate: £400 - £500 per day
Posted: 4 days ago
City, London
Oscar
Rate: £300 - £340 per day
Posted: 2 days ago
London
Mortimer Spinks
Posted: 3 days ago
City, London
Nakama
Rate: From £400 to £440 per day Weekly pay through Nakama
Posted: 4 days ago
London
Careerwise UK Limited
Rate: £475 - £500 per day
Posted: Yesterday
London
McGregor Boyall
Rate: £300 - £400 per annum
Posted: 2 days ago
City, London
ANSON MCCADE
Rate: UKP 600 per day
Posted: 2 days ago
London
Mortimer Spinks
Rate: £300 - £350 per annum
Posted: 4 days ago
London
Lorien Resourcing
Posted: 4 days ago
London
Source Technology
Rate: From £500 to £600 per day
Posted: 2 days ago
London
Data Idols
Rate: From £400 to £500 per day
Posted: 3 days ago
London
Revolution Technology
Rate: From £400 to £450 per day
Posted: 2 days ago
City, London
Ashdown IT
Rate: £400 - £450 per day
Posted: 5 days ago
London
Computer People
Posted: 2 days ago
London
Austin Fraser
Posted: 2 days ago
Kingston Upon Thames, Surrey
ARC IT Recruitment Ltd
Rate: £450 - £500 per day
Posted: Yesterday
London
Explore Group
Rate: £450 - £500 per day
Posted: 4 days ago
Central London / West End
Trust In Soda
Rate: From £350 to £450 per day
Posted: 2 days ago
London
Morgan Mckinley
Posted: 4 days ago
South East London
Lorien Resourcing
Rate: £450 - £490 per day
Posted: Yesterday