Period
to 21 September 2018

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 September 2018 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 Sep 2018
Same period 2017 Same period 2016
Rank 6 8 7
Rank change year-on-year +2 -1 +2
Contract jobs citing JavaScript 6,428 5,805 5,766
As % of all contract IT jobs advertised in London 14.02% 13.09% 12.84%
As % of the Programming Languages category 27.90% 27.17% 29.07%
Number of daily rates quoted 4,933 4,483 4,585
London median daily rate £500 £475 £450
Median daily rate % change year-on-year +5.26% +5.56% +8.43%
10th Percentile £363 £325 £313
90th Percentile £638 £638 £600
England median daily rate £450 £425 £400
% change year-on-year +5.88% +6.25% +6.67%
Number of hourly rates quoted 19 17 29
London median hourly rate £45.00 £22.62 £35.00
Median hourly rate % change year-on-year +98.94% -35.37% +58.26%
10th Percentile £19.20 £13.65 £18.66
90th Percentile £52.50 £29.25 £119.00
England median hourly rate £42.50 £42.50 £38.75
% change year-on-year - +9.68% +13.06%

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 23,042 21,367 19,833
As % of all contract IT jobs advertised in London 50.26% 48.17% 44.16%
Number of daily rates quoted 17,550 15,971 14,952
London median daily rate £525 £500 £450
Median daily rate % change year-on-year +5.00% +11.11% -
10th Percentile £363 £338 £313
90th Percentile £675 £650 £631
England median daily rate £475 £450 £425
% change year-on-year +5.56% +5.88% +6.25%
Number of hourly rates quoted 147 150 109
London median hourly rate £39.00 £35.91 £30.94
Median hourly rate % change year-on-year +8.62% +16.07% +17.07%
10th Percentile £18.00 £17.20 £14.00
90th Percentile £62.68 £52.05 £57.01
England median hourly rate £42.13 £40.00 £37.50
% change year-on-year +5.31% +6.67% +2.74%

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 September 2018.

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 September 2018.

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 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 +3 1,409 £500 +5.15% 524
West London 0 263 £478 +6.11% 303
South London +10 240 £450 - 43
East London +1 135 £450 -4.26% 138
North London -6 16 £403 +7.33% 25
JavaScript
England

For the 6 months to 21 September 2018, IT contractor jobs citing JavaScript also mentioned the following 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 with a requirement for JavaScript.

1 3,330 (51.80%) HTML
2 3,060 (47.60%) CSS
3 3,038 (47.26%) Agile Software Development
4 2,194 (34.13%) AngularJS
5 2,032 (31.61%) React
6 1,713 (26.65%) Node.js
7 1,703 (26.49%) TDD
8 1,683 (26.18%) HTML5
9 1,675 (26.06%) Java
10 1,397 (21.73%) Front End Development
11 1,328 (20.66%) Git (software)
12 1,225 (19.06%) Finance
13 1,119 (17.41%) C#
14 1,083 (16.85%) .NET
15 1,080 (16.80%) CSS3
16 923 (14.36%) SQL
17 921 (14.33%) Redux
18 898 (13.97%) jQuery
19 870 (13.53%) Amazon AWS
20 869 (13.52%) MVC
21 855 (13.30%) REST
22 821 (12.77%) BDD
22 821 (12.77%) Scrum
23 804 (12.51%) User Experience
24 800 (12.45%) Test Automation
25 773 (12.03%) ES6
26 763 (11.87%) Sass
27 757 (11.78%) Microservices
28 752 (11.70%) Microsoft Azure
29 743 (11.56%) Web Development

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
1 240 (3.73%) Elasticsearch
2 218 (3.39%) CMS
3 204 (3.17%) Confluence
4 124 (1.93%) WordPress
5 114 (1.77%) Apache
6 102 (1.59%) SharePoint
7 79 (1.23%) IIS
8 71 (1.10%) Drupal
9 70 (1.09%) Apache Spark
9 70 (1.09%) Tomcat
10 53 (0.82%) WebSphere
11 48 (0.75%) Adobe Experience Manager
12 38 (0.59%) Sitecore CMS
13 36 (0.56%) Umbraco
14 30 (0.47%) nginx
15 26 (0.40%) JBoss
15 26 (0.40%) SharePoint 2010
16 25 (0.39%) Apache Solr
17 22 (0.34%) Oracle SOA Suite
17 22 (0.34%) WebLogic
Applications
1 130 (2.02%) Photoshop
2 29 (0.45%) InVision
3 27 (0.42%) Adobe Creative Suite
4 24 (0.37%) InfoPath
5 22 (0.34%) Adobe Illustrator
5 22 (0.34%) Fireworks
6 17 (0.26%) Chatbot
7 13 (0.20%) Microsoft Office
7 13 (0.20%) OmniGraffle
8 12 (0.19%) Microsoft Excel
9 7 (0.11%) GIMP
9 7 (0.11%) InDesign
10 6 (0.093%) Acrobat
10 6 (0.093%) MS Visio
11 5 (0.078%) Microsoft Project
12 4 (0.062%) Maya
13 3 (0.047%) HipChat
13 3 (0.047%) SPSS
14 2 (0.031%) Microsoft PowerPoint
14 2 (0.031%) Spreadsheet
Business Applications
1 42 (0.65%) Dynamics CRM
2 39 (0.61%) Magento
3 32 (0.50%) ION MarketView
4 15 (0.23%) SAP Oil and Gas
5 11 (0.17%) Dynamics NAV
5 11 (0.17%) Payment Gateway
6 10 (0.16%) Salesforce.com CRM
7 7 (0.11%) Adobe Campaign
8 6 (0.093%) SAP ERP
8 6 (0.093%) SunGard Martini
9 5 (0.078%) Remedy ITSM
9 5 (0.078%) SDL Web 8
9 5 (0.078%) Shopify
9 5 (0.078%) thinkFolio
9 5 (0.078%) TRIRIGA
10 4 (0.062%) Dynamics AX
10 4 (0.062%) Eloqua
10 4 (0.062%) SAP Hybris
11 3 (0.047%) WebTrends
12 2 (0.031%) LatentZero
Cloud Services
1 870 (13.53%) Amazon AWS
2 752 (11.70%) Microsoft Azure
3 265 (4.12%) Serverless
4 244 (3.80%) GitHub
5 230 (3.58%) npm
6 129 (2.01%) Google Cloud Platform
7 118 (1.84%) AWS Lambda
8 116 (1.80%) SaaS
9 85 (1.32%) PaaS
10 83 (1.29%) Heroku
11 49 (0.76%) Cloud Computing
12 48 (0.75%) Google Analytics
13 43 (0.67%) Office 365
14 42 (0.65%) Azure Functions
15 36 (0.56%) Amazon S3
16 34 (0.53%) Google Tag Manager
17 33 (0.51%) Adobe Analytics
18 31 (0.48%) Amazon SQS
19 30 (0.47%) Amazon EC2
20 28 (0.44%) AWS CloudFormation
Communications & Networking
1 263 (4.09%) HTTP
2 80 (1.24%) Internet
3 69 (1.07%) SSL
4 47 (0.73%) TCP/IP
5 42 (0.65%) DNS
6 40 (0.62%) AMQP
7 38 (0.59%) FTP
8 27 (0.42%) Firewall
9 21 (0.33%) Intranet
10 20 (0.31%) HTTPS
11 18 (0.28%) SMS
12 17 (0.26%) VPN
13 13 (0.20%) RTMP
14 8 (0.12%) LAN
14 8 (0.12%) Wi-Fi
15 6 (0.093%) Bluetooth
15 6 (0.093%) Ethernet
15 6 (0.093%) MQTT
15 6 (0.093%) Wireless
16 5 (0.078%) Unified Communications
Database & Business Intelligence
1 543 (8.45%) SQL Server
2 471 (7.33%) MySQL
3 367 (5.71%) Relational Database
4 344 (5.35%) MongoDB
5 337 (5.24%) PostgreSQL
6 309 (4.81%) NoSQL
7 126 (1.96%) Big Data
8 116 (1.80%) Redis
9 86 (1.34%) RDBMS
10 80 (1.24%) Hadoop
11 71 (1.10%) Apache Cassandra
12 62 (0.96%) Cosmos DB
13 60 (0.93%) Amazon DynamoDB
14 57 (0.89%) Azure SQL Database
15 42 (0.65%) Blockchain
15 42 (0.65%) SQL Server 2012
16 37 (0.58%) HBase
17 34 (0.53%) Couchbase
17 34 (0.53%) Power BI
18 31 (0.48%) SQL Server Integration Services
Development Applications
1 1,328 (20.66%) Git (software)
2 580 (9.02%) Jenkins
3 448 (6.97%) JIRA
4 429 (6.67%) webpack
5 409 (6.36%) Selenium
6 350 (5.44%) gulp
7 303 (4.71%) Jasmine
8 270 (4.20%) Maven
9 229 (3.56%) Mocha
10 221 (3.44%) Cucumber
10 221 (3.44%) Grunt
11 193 (3.00%) Karma Test Runner
12 183 (2.85%) Subversion
12 183 (2.85%) TeamCity
13 176 (2.74%) Visual Studio
14 145 (2.26%) WebDriver
15 140 (2.18%) Babel
16 128 (1.99%) JUnit
17 124 (1.93%) Protractor
18 114 (1.77%) Team Foundation Server
General
1 1,225 (19.06%) Finance
2 661 (10.28%) Banking
3 385 (5.99%) Retail
4 255 (3.97%) Front Office
5 213 (3.31%) Investment Banking
6 153 (2.38%) Marketing
7 111 (1.73%) Games
8 103 (1.60%) Advertising
9 62 (0.96%) Telecoms
10 54 (0.84%) Financial Institution
11 52 (0.81%) Law
12 49 (0.76%) Legal
12 49 (0.76%) Publishing
13 47 (0.73%) Back Office
14 13 (0.20%) Retail Banking
15 10 (0.16%) Electronics
15 10 (0.16%) Pharmaceutical
16 9 (0.14%) Manufacturing
17 8 (0.12%) Automotive
18 7 (0.11%) Multimedia
Job Titles
1 5,007 (77.89%) Developer
2 1,231 (19.15%) JavaScript Developer
3 1,140 (17.73%) Front End Developer (Client-Side Developer)
4 1,028 (15.99%) React Developer
5 581 (9.04%) Angular Developer
6 573 (8.91%) Full Stack Developer
7 560 (8.71%) Java Developer
8 552 (8.59%) Senior Developer
9 526 (8.18%) .NET Developer
10 444 (6.91%) C# Developer
11 374 (5.82%) Node.js Developer
12 268 (4.17%) HTML Developer
13 251 (3.90%) UI Developer
14 233 (3.62%) C# .NET Developer
14 233 (3.62%) Web Developer
15 185 (2.88%) PHP Developer
16 175 (2.72%) HTML CSS Developer
17 164 (2.55%) Python Developer
18 159 (2.47%) Senior JavaScript Developer
19 153 (2.38%) Software Engineer
Libraries, Frameworks & Software Standards
1 3,330 (51.80%) HTML
2 3,060 (47.60%) CSS
3 2,194 (34.13%) AngularJS
4 2,032 (31.61%) React
5 1,713 (26.65%) Node.js
6 1,683 (26.18%) HTML5
7 1,083 (16.85%) .NET
8 1,080 (16.80%) CSS3
9 921 (14.33%) Redux
10 898 (13.97%) jQuery
11 855 (13.30%) REST
12 763 (11.87%) Sass
13 682 (10.61%) RESTful
14 635 (9.88%) Web Services
15 566 (8.81%) Spring
16 564 (8.77%) ASP.NET
17 446 (6.94%) JSON
18 434 (6.75%) Twitter Bootstrap
19 415 (6.46%) XML
20 367 (5.71%) ASP.NET Web API
Miscellaneous
1 804 (12.51%) User Experience
2 624 (9.71%) Greenfield Project
3 374 (5.82%) Fintech
4 369 (5.74%) Mobile App
5 261 (4.06%) Analytical Skills
6 244 (3.80%) Computer Science
7 157 (2.44%) Fixed Income
8 149 (2.32%) Data Structures
9 134 (2.08%) Algorithms
10 96 (1.49%) Enterprise Software
10 96 (1.49%) Foreign Exchange (FX)
11 71 (1.10%) Self-Motivation
12 58 (0.90%) Derivative
13 56 (0.87%) Equities
14 49 (0.76%) Video on Demand
15 47 (0.73%) Hedge funds
16 43 (0.67%) W3C
17 36 (0.56%) Linux Command Line
17 36 (0.56%) Virtual Team
18 35 (0.54%) Blog
Operating Systems
1 529 (8.23%) Linux
2 283 (4.40%) Apple iOS
3 273 (4.25%) Android
4 175 (2.72%) Unix
5 163 (2.54%) Windows
6 50 (0.78%) Windows Server
7 35 (0.54%) Ubuntu
8 21 (0.33%) CentOS
9 19 (0.30%) Mac OS X
10 17 (0.26%) Mac OS
10 17 (0.26%) Red Hat Enterprise Linux
11 15 (0.23%) Debian
12 12 (0.19%) Fedora
13 7 (0.11%) VMS
14 6 (0.093%) Windows Server 2012
15 5 (0.078%) Windows 7
16 4 (0.062%) HPUX
16 4 (0.062%) Windows 10
16 4 (0.062%) Windows 8
16 4 (0.062%) Windows Server 2008
Processes & Methodologies
1 3,038 (47.26%) Agile Software Development
2 1,703 (26.49%) TDD
3 1,397 (21.73%) Front End Development
4 869 (13.52%) MVC
5 821 (12.77%) BDD
5 821 (12.77%) Scrum
6 800 (12.45%) Test Automation
7 757 (11.78%) Microservices
8 743 (11.56%) Web Development
9 734 (11.42%) DevOps
10 724 (11.26%) OO
11 721 (11.22%) Continuous Integration
12 560 (8.71%) E-Commerce
13 519 (8.07%) Software Engineering
14 469 (7.30%) Unit Testing
15 424 (6.60%) Problem-Solving
16 392 (6.10%) Open Source
17 310 (4.82%) Responsive Web Design
18 303 (4.71%) Analytics
19 286 (4.45%) Continuous Delivery
Programming Languages
1 1,675 (26.06%) Java
2 1,119 (17.41%) C#
3 923 (14.36%) SQL
4 773 (12.03%) ES6
5 647 (10.07%) Python
6 645 (10.03%) TypeScript
7 422 (6.57%) PHP
8 333 (5.18%) Java 8
9 226 (3.52%) Ruby
10 205 (3.19%) Scala
11 168 (2.61%) Go
12 135 (2.10%) C++
13 113 (1.76%) ES7
14 101 (1.57%) Perl
14 101 (1.57%) PowerShell
15 98 (1.52%) Bash Shell
16 96 (1.49%) T-SQL
17 75 (1.17%) C
18 72 (1.12%) Apple Swift
19 67 (1.04%) PL/SQL
Qualifications
1 312 (4.85%) Degree
2 204 (3.17%) Security Cleared
3 172 (2.68%) SC Cleared
4 138 (2.15%) Computer Science Degree
5 36 (0.56%) BPSS Clearance
6 17 (0.26%) ITIL Certification
7 15 (0.23%) Master's Degree
8 12 (0.19%) Microsoft Certification
9 11 (0.17%) AWS Certification
10 7 (0.11%) CTC Cleared
11 6 (0.093%) DBS Check
11 6 (0.093%) ISTQB
11 6 (0.093%) PMI Certification
12 5 (0.078%) TOGAF Certification
13 4 (0.062%) Numerate Degree
13 4 (0.062%) OCPJP
13 4 (0.062%) PhD
14 3 (0.047%) CISSP
14 3 (0.047%) ISEB
14 3 (0.047%) PMP
Quality Assurance & Compliance
1 338 (5.26%) QA
2 35 (0.54%) SLA
3 24 (0.37%) Data Quality
3 24 (0.37%) GCP
4 18 (0.28%) GDPR
5 16 (0.25%) Disclosure Scotland
6 12 (0.19%) MiFID
6 12 (0.19%) PCI DSS
7 9 (0.14%) WCAG
8 5 (0.078%) ISO/IEC 27001
8 5 (0.078%) Solvency II
8 5 (0.078%) WAI
9 3 (0.047%) PMBOK
10 2 (0.031%) PMO
11 1 (0.016%) HL7
11 1 (0.016%) PSD2
System Software
1 683 (10.63%) Docker
2 36 (0.56%) Active Directory
3 27 (0.42%) VMware Infrastructure
4 17 (0.26%) HDFS
5 14 (0.22%) Hyper-V
5 14 (0.22%) VirtualBox
6 10 (0.16%) Virtual Machines
7 8 (0.12%) VMware ESXi
8 7 (0.11%) OpenAM
9 5 (0.078%) Apache ZooKeeper
9 5 (0.078%) etcd
9 5 (0.078%) KVM
9 5 (0.078%) LXC
10 4 (0.062%) flannel
10 4 (0.062%) Oracle RAC
10 4 (0.062%) Varnish
11 3 (0.047%) VMware NSX
12 1 (0.016%) Virtual Desktop
12 1 (0.016%) vSphere
12 1 (0.016%) Xen
Systems Management
1 239 (3.72%) Kubernetes
2 211 (3.28%) Ansible
3 134 (2.08%) Puppet
4 127 (1.98%) Terraform
5 96 (1.49%) Opscode Chef
6 55 (0.86%) Kibana
7 43 (0.67%) logstash
8 41 (0.64%) Docker Swarm
9 37 (0.58%) Salt
10 34 (0.53%) Single Sign-On
11 27 (0.42%) Grafana
12 22 (0.34%) Mesos
12 22 (0.34%) Packer
13 18 (0.28%) Prometheus
14 14 (0.22%) Nagios
15 13 (0.20%) Marathon
16 11 (0.17%) Graylog
17 10 (0.16%) vRealize
17 10 (0.16%) vRealize Orchestrator
18 9 (0.14%) SCCM
Vendors
1 357 (5.55%) Microsoft
2 270 (4.20%) Oracle
3 249 (3.87%) Google
4 190 (2.96%) Adobe
5 105 (1.63%) Salesforce.com
6 98 (1.52%) ServiceNow
7 62 (0.96%) Sybase
8 55 (0.86%) Splunk
9 53 (0.82%) Capita
9 53 (0.82%) SAP
10 49 (0.76%) IBM
11 46 (0.72%) Sitecore
12 44 (0.68%) Atlassian
13 37 (0.58%) VMware
14 36 (0.56%) hybris
15 34 (0.53%) Tableau
16 33 (0.51%) ION Trading
17 29 (0.45%) Apigee
17 29 (0.45%) Twitter
18 26 (0.40%) Nintex