Period
to 21 November 2017

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 6 months to 21 November 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
6 months to
21 Nov 2017
Same period 2016 Same period 2015
Rank 8 7 8
Rank change year-on-year -1 +1 +3
Contract jobs citing JavaScript 6114 5915 5496
As % of all contract IT jobs advertised in London 12.99% 13.17% 11.81%
As % of the Programming Languages category 26.69% 29.51% 27.16%
Number of daily rates quoted 4834 4665 4290
London median daily rate £483 £450 £425
Median daily rate % change year-on-year +7.22% +5.88% +6.25%
10th Percentile £331 £313 £300
90th Percentile £637 £613 £588
England median daily rate £450 £413 £400
% change year-on-year +9.09% +3.13% +6.67%
Number of hourly rates quoted 20 30 25
London median hourly rate £27.00 £36.59 £24.23
Median hourly rate % change year-on-year -26.21% +51.02% -42.99%
10th Percentile £13.98 £20.03 £20.17
90th Percentile £28.54 £81.48 £52.50
England median hourly rate £43.00 £37.50 £35.00
% change year-on-year +14.67% +7.14% +2.94%

JavaScript is in the Programming Languages category. The following table is for comparison with the above and provides summary statistics for all contract job vacancies advertised in London with a requirement for coding skills.

All Programming Languages
London
Contract vacancies with a requirement for coding skills 22908 20044 20232
As % of all contract IT jobs advertised in London 48.67% 44.61% 43.46%
Number of daily rates quoted 17356 14983 15092
London median daily rate £500 £470 £450
Median daily rate % change year-on-year +6.38% +4.44% +5.88%
10th Percentile £350 £313 £305
90th Percentile £669 £634 £638
England median daily rate £460 £425 £410
% change year-on-year +8.24% +3.66% +2.50%
Number of hourly rates quoted 157 116 139
London median hourly rate £35.00 £33.18 £24.23
Median hourly rate % change year-on-year +5.48% +36.95% -17.81%
10th Percentile £18.01 £16.07 £13.50
90th Percentile £52.20 £57.19 £52.17
England median hourly rate £40.00 £37.50 £37.45
% change year-on-year +6.67% +0.13% +22.79%

JavaScript
Job Vacancy Trend in London

Job postings citing JavaScript as a percentage of all IT jobs advertised in London.

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 6 months to 21 November 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 6 months to 21 November 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 6 months to 21 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 0 1181 £475 +5.61% 275
West London +2 282 £450 +5.88% 80
South London -13 134 £475 +18.75% 19
East London +5 102 £488 +14.71% 36
North London -8 17 £410 +13.10% 13
JavaScript
England

For the 6 months to 21 November 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 3557 (58.18%) HTML
2 3131 (51.21%) CSS
3 2919 (47.74%) Agile Software Development
4 2210 (36.15%) AngularJS
5 1980 (32.38%) HTML5
6 1911 (31.26%) Java
7 1779 (29.10%) TDD
8 1730 (28.30%) React
9 1572 (25.71%) Node.js
10 1277 (20.89%) Front End Development
11 1228 (20.09%) CSS3
12 1177 (19.25%) Finance
13 1123 (18.37%) Git (software)
14 1115 (18.24%) C#
15 1094 (17.89%) .NET
16 1052 (17.21%) SQL
17 1030 (16.85%) jQuery
18 901 (14.74%) BDD
19 883 (14.44%) Scrum
20 825 (13.49%) MVC
21 819 (13.40%) Web Services
22 816 (13.35%) OO
23 795 (13.00%) Banking
24 756 (12.37%) RESTful
25 744 (12.17%) Continuous Integration
26 730 (11.94%) Web Development
27 715 (11.69%) Sass
28 705 (11.53%) REST
29 685 (11.20%) Test Automation
30 681 (11.14%) Amazon AWS

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
1 248 (4.06%) CMS
2 227 (3.71%) Elasticsearch
3 178 (2.91%) Apache
4 143 (2.34%) Confluence
5 124 (2.03%) SharePoint
6 104 (1.70%) Drupal
7 101 (1.65%) Tomcat
8 89 (1.46%) WordPress
9 85 (1.39%) JBoss
10 79 (1.29%) Apache Spark
11 76 (1.24%) Adobe Experience Manager
12 70 (1.14%) IIS
13 66 (1.08%) WebSphere
14 50 (0.82%) Apache Solr
15 47 (0.77%) nginx
16 42 (0.69%) Umbraco
17 35 (0.57%) Cloud Foundry
18 31 (0.51%) SharePoint 2013
19 30 (0.49%) Oracle SOA Suite
20 29 (0.47%) WildFly
Applications
1 127 (2.08%) Photoshop
2 69 (1.13%) Microsoft Excel
3 37 (0.61%) Adobe Creative Suite
3 37 (0.61%) Adobe Illustrator
4 26 (0.43%) Microsoft Office
5 24 (0.39%) InVision
5 24 (0.39%) OmniGraffle
6 20 (0.33%) Microsoft PowerPoint
7 17 (0.28%) MS Visio
8 14 (0.23%) Chatbot
9 8 (0.13%) GIMP
9 8 (0.13%) InfoPath
10 6 (0.098%) Microsoft Project
11 4 (0.065%) Spreadsheet
11 4 (0.065%) UXPin
12 3 (0.049%) InDesign
13 2 (0.033%) Acrobat
13 2 (0.033%) Adobe After Effects
13 2 (0.033%) Adobe Premiere
13 2 (0.033%) Fireworks
Business Applications
1 95 (1.55%) Dynamics CRM
2 33 (0.54%) Magento
3 18 (0.29%) ION MarketView
4 13 (0.21%) Adobe Campaign
4 13 (0.21%) Payment Gateway
5 11 (0.18%) RMDS
6 7 (0.11%) Oracle BPM
6 7 (0.11%) Shopify
7 6 (0.098%) SAP Hybris
8 4 (0.065%) Eloqua
8 4 (0.065%) Salesforce.com CRM
9 3 (0.049%) NetSuite
10 2 (0.033%) Dynamics AX
10 2 (0.033%) OpenText MBPM
10 2 (0.033%) OpenText Process Suite
10 2 (0.033%) R3 Corda
10 2 (0.033%) SAP ERP
10 2 (0.033%) SAP HR
10 2 (0.033%) SDL Web 8
11 1 (0.016%) SAP S/4HANA
Cloud Services
1 681 (11.14%) Amazon AWS
2 365 (5.97%) Microsoft Azure
3 207 (3.39%) npm
4 156 (2.55%) GitHub
5 89 (1.46%) SaaS
6 75 (1.23%) Serverless
7 61 (1.00%) Amazon EC2
8 57 (0.93%) Office 365
9 56 (0.92%) PaaS
10 49 (0.80%) Google Cloud Platform
11 46 (0.75%) Cloud Computing
12 42 (0.69%) Heroku
13 38 (0.62%) Amazon S3
13 38 (0.62%) Google Analytics
14 37 (0.61%) IaaS
15 29 (0.47%) AWS CloudFormation
15 29 (0.47%) Route 53
16 28 (0.46%) AWS Lambda
17 27 (0.44%) Yarn
18 22 (0.36%) Amazon SQS
Communications & Networking
1 120 (1.96%) HTTP
2 91 (1.49%) Internet
3 34 (0.56%) Intranet
4 33 (0.54%) TCP/IP
5 32 (0.52%) LDAP
6 30 (0.49%) SMS
7 26 (0.43%) Firewall
8 19 (0.31%) SSL
9 16 (0.26%) FTP
9 16 (0.26%) Skype
10 13 (0.21%) Network Security
11 11 (0.18%) DNS
12 10 (0.16%) LAN
13 8 (0.13%) SMTP
14 7 (0.11%) Ethernet
14 7 (0.11%) SSH
15 6 (0.098%) HTTPS
15 6 (0.098%) Kerberos
15 6 (0.098%) VPN
15 6 (0.098%) WAN
Database & Business Intelligence
1 573 (9.37%) SQL Server
2 405 (6.62%) NoSQL
3 379 (6.20%) MongoDB
4 362 (5.92%) MySQL
5 257 (4.20%) Relational Database
6 220 (3.60%) PostgreSQL
7 173 (2.83%) Big Data
8 103 (1.68%) Hadoop
9 96 (1.57%) RDBMS
10 91 (1.49%) Apache Cassandra
11 89 (1.46%) Redis
12 78 (1.28%) SQL Server Integration Services
13 76 (1.24%) SQL Server Reporting Services
14 68 (1.11%) Amazon DynamoDB
15 54 (0.88%) SQL Server 2008
16 46 (0.75%) Data Warehouse
17 40 (0.65%) Neo4j
18 37 (0.61%) SQL Server 2016
19 34 (0.56%) Apache Hive
20 33 (0.54%) OLAP
Development Applications
1 1123 (18.37%) Git (software)
2 528 (8.64%) Jenkins
3 358 (5.86%) JIRA
4 350 (5.72%) Jasmine
5 339 (5.54%) Grunt
6 336 (5.50%) gulp
7 334 (5.46%) Selenium
8 326 (5.33%) webpack
9 241 (3.94%) Maven
10 229 (3.75%) Subversion
11 219 (3.58%) TeamCity
12 200 (3.27%) Mocha
13 194 (3.17%) Cucumber
14 170 (2.78%) Karma Test Runner
15 158 (2.58%) JUnit
16 130 (2.13%) Protractor
17 128 (2.09%) Visual Studio
18 127 (2.08%) Babel
19 122 (2.00%) NUnit
20 112 (1.83%) WebDriver
General
1 1177 (19.25%) Finance
2 795 (13.00%) Banking
3 330 (5.40%) Front Office
4 297 (4.86%) Investment Banking
5 226 (3.70%) Marketing
6 197 (3.22%) Retail
7 126 (2.06%) Games
8 104 (1.70%) Telecoms
9 82 (1.34%) Publishing
10 69 (1.13%) Advertising
11 65 (1.06%) Financial Institution
12 52 (0.85%) Back Office
13 44 (0.72%) Electronics
14 43 (0.70%) Law
15 37 (0.61%) Manufacturing
16 30 (0.49%) Legal
17 28 (0.46%) Retail Banking
18 16 (0.26%) Automotive
18 16 (0.26%) French Language
19 13 (0.21%) Billing
Job Titles
1 4808 (78.64%) Developer
2 1362 (22.28%) JavaScript Developer
3 919 (15.03%) Front End Developer (Client-Side Developer)
4 729 (11.92%) Java Developer
5 604 (9.88%) Full Stack Developer
6 602 (9.85%) Angular Developer
7 536 (8.77%) Senior Developer
8 432 (7.07%) HTML Developer
9 416 (6.80%) C# Developer
10 415 (6.79%) .NET Developer
11 347 (5.68%) UI Developer
12 344 (5.63%) Node.js Developer
13 233 (3.81%) HTML CSS Developer
14 212 (3.47%) Web Developer
15 181 (2.96%) C# .NET Developer
16 179 (2.93%) Agile Developer
17 176 (2.88%) Architect
18 170 (2.78%) Python Developer
19 150 (2.45%) SQL Developer
20 134 (2.19%) Senior JavaScript Developer
Libraries, Frameworks & Software Standards
1 3557 (58.18%) HTML
2 3131 (51.21%) CSS
3 2210 (36.15%) AngularJS
4 1980 (32.38%) HTML5
5 1730 (28.30%) React
6 1572 (25.71%) Node.js
7 1228 (20.09%) CSS3
8 1094 (17.89%) .NET
9 1030 (16.85%) jQuery
10 819 (13.40%) Web Services
11 756 (12.37%) RESTful
12 715 (11.69%) Sass
13 705 (11.53%) REST
14 613 (10.03%) Redux
15 528 (8.64%) ASP.NET
16 521 (8.52%) XML
17 475 (7.77%) JSON
18 465 (7.61%) Spring
19 421 (6.89%) Twitter Bootstrap
20 368 (6.02%) Ajax
Miscellaneous
1 661 (10.81%) User Experience
2 476 (7.79%) Greenfield Project
3 327 (5.35%) Analytical Skills
4 314 (5.14%) Mobile App
5 248 (4.06%) Fintech
6 213 (3.48%) Computer Science
7 140 (2.29%) Fixed Income
7 140 (2.29%) Foreign Exchange (FX)
8 86 (1.41%) Data Structures
9 85 (1.39%) Derivative
10 81 (1.32%) Enterprise Software
11 80 (1.31%) Virtual Team
12 77 (1.26%) Hedge funds
13 60 (0.98%) Algorithms
14 53 (0.87%) Equity Derivative
15 47 (0.77%) Equities
16 46 (0.75%) Video on Demand
16 46 (0.75%) W3C
17 43 (0.70%) Linux Command Line
18 40 (0.65%) Social Media
Operating Systems
1 536 (8.77%) Linux
2 265 (4.33%) Unix
3 200 (3.27%) Windows
4 186 (3.04%) Android
5 176 (2.88%) Apple iOS
6 46 (0.75%) Red Hat Enterprise Linux
7 45 (0.74%) Windows Server
8 36 (0.59%) Mac OS
9 20 (0.33%) Ubuntu
10 16 (0.26%) Mac OS X
10 16 (0.26%) Windows Server 2008
10 16 (0.26%) Windows Server 2012
11 15 (0.25%) CentOS
12 12 (0.20%) AIX
13 10 (0.16%) Solaris
13 10 (0.16%) Windows 10
14 9 (0.15%) SUSE Linux Enterprise Server
15 7 (0.11%) CoreOS
16 4 (0.065%) MVS
16 4 (0.065%) VMS
Processes & Methodologies
1 2919 (47.74%) Agile Software Development
2 1779 (29.10%) TDD
3 1277 (20.89%) Front End Development
4 901 (14.74%) BDD
5 883 (14.44%) Scrum
6 825 (13.49%) MVC
7 816 (13.35%) OO
8 744 (12.17%) Continuous Integration
9 730 (11.94%) Web Development
10 685 (11.20%) Test Automation
11 523 (8.55%) DevOps
12 453 (7.41%) E-Commerce
13 423 (6.92%) Software Engineering
14 405 (6.62%) Microservices
15 343 (5.61%) Unit Testing
16 333 (5.45%) Responsive Web Design
17 318 (5.20%) Open Source
18 311 (5.09%) Pair Programming
19 282 (4.61%) SDLC
20 266 (4.35%) Continuous Delivery
Programming Languages
1 1911 (31.26%) Java
2 1115 (18.24%) C#
3 1052 (17.21%) SQL
4 674 (11.02%) Python
5 617 (10.09%) ES6
6 369 (6.04%) PHP
7 329 (5.38%) TypeScript
8 245 (4.01%) Scala
9 239 (3.91%) Ruby
10 143 (2.34%) T-SQL
11 131 (2.14%) C++
12 107 (1.75%) PowerShell
13 98 (1.60%) PL/SQL
14 93 (1.52%) Go
15 79 (1.29%) Groovy
16 73 (1.19%) Perl
17 68 (1.11%) Bash Shell
18 59 (0.96%) C
18 59 (0.96%) GraphQL
19 56 (0.92%) Objective-C
Qualifications
1 238 (3.89%) Degree
2 150 (2.45%) Security Cleared
3 101 (1.65%) SC Cleared
4 90 (1.47%) Computer Science Degree
5 31 (0.51%) BPSS Clearance
6 22 (0.36%) ISEB
7 19 (0.31%) ISTQB
8 14 (0.23%) PMP
9 11 (0.18%) CTC Cleared
10 9 (0.15%) Master's Degree
11 8 (0.13%) CISSP
12 7 (0.11%) DV Cleared
12 7 (0.11%) Microsoft Certification
13 6 (0.098%) PMI Certification
14 5 (0.082%) PhD
15 4 (0.065%) ISTQB Foundation Certification
16 2 (0.033%) IBM Certification
16 2 (0.033%) ISTQB Advanced Certification
16 2 (0.033%) ITIL Certification
16 2 (0.033%) MCSE
Quality Assurance & Compliance
1 312 (5.10%) QA
2 33 (0.54%) WCAG
3 23 (0.38%) MiFID
3 23 (0.38%) WAI
4 11 (0.18%) SLA
5 10 (0.16%) Disclosure Scotland
6 8 (0.13%) ISO/IEC 27001
7 6 (0.098%) PCI DSS
8 4 (0.065%) GDPR
8 4 (0.065%) HL7
8 4 (0.065%) PMO
9 3 (0.049%) Data Quality
9 3 (0.049%) EMIR
10 2 (0.033%) FedRAMP
10 2 (0.033%) Solvency II
11 1 (0.016%) COBIT
11 1 (0.016%) GCP
11 1 (0.016%) ISO/IEC 27002 (supersedes ISO/IEC 17799)
11 1 (0.016%) PSD2
11 1 (0.016%) Sarbanes-Oxley
System Software
1 454 (7.43%) Docker
2 63 (1.03%) Active Directory
3 12 (0.20%) VMware Infrastructure
4 10 (0.16%) Varnish
5 8 (0.13%) Apache Flume
6 7 (0.11%) Apache ZooKeeper
7 6 (0.098%) etcd
8 5 (0.082%) HDFS
8 5 (0.082%) Virtual Machines
9 4 (0.065%) OpenAM
9 4 (0.065%) OpenDJ
9 4 (0.065%) VMware ESXi
10 2 (0.033%) Hyper-V
10 2 (0.033%) vSphere
10 2 (0.033%) XenApp
11 1 (0.016%) KVM
11 1 (0.016%) UAG
11 1 (0.016%) VirtualBox
11 1 (0.016%) XenDesktop
11 1 (0.016%) XenServer
Systems Management
1 140 (2.29%) Ansible
2 138 (2.26%) Kubernetes
3 123 (2.01%) Puppet
4 107 (1.75%) Opscode Chef
5 74 (1.21%) Terraform
6 43 (0.70%) Kibana
7 31 (0.51%) logstash
8 20 (0.33%) Nagios
9 17 (0.28%) Grafana
10 15 (0.25%) Sysdig
11 14 (0.23%) ZABBIX
12 13 (0.21%) Mesos
12 13 (0.21%) SCCM
13 12 (0.20%) Business Desktop Deployment
14 11 (0.18%) BladeLogic
14 11 (0.18%) Control-M
14 11 (0.18%) HP Quality Center
15 9 (0.15%) Hadoop YARN
15 9 (0.15%) Prometheus
16 8 (0.13%) Fluentd
Vendors
1 443 (7.25%) Microsoft
2 307 (5.02%) Oracle
3 183 (2.99%) Adobe
4 142 (2.32%) Google
5 117 (1.91%) ServiceNow
6 93 (1.52%) Salesforce.com
7 79 (1.29%) SAP
8 77 (1.26%) IBM
9 54 (0.88%) Atlassian
9 54 (0.88%) Sybase
10 53 (0.87%) Splunk
11 52 (0.85%) Apigee
12 50 (0.82%) Sitecore
13 41 (0.67%) New Relic
14 40 (0.65%) Red Hat
15 37 (0.61%) TIBCO
16 30 (0.49%) hybris
17 29 (0.47%) VMware
18 27 (0.44%) AppDynamics
19 24 (0.39%) Apple