Period
to 22 November 2019

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 22 November 2019 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
22 Nov 2019
Same period 2018 Same period 2017
Rank 7 6 8
Rank change year-on-year -1 +2 -1
Contract jobs citing JavaScript 4,447 6,319 6,081
As % of all contract IT jobs advertised in London 12.65% 13.63% 12.90%
As % of the Programming Languages category 26.90% 27.14% 26.56%
Number of daily rates quoted 3,378 4,877 4,813
London median daily rate £525 £500 £476
Median daily rate % change year-on-year +5.00% +5.15% +5.67%
10th Percentile £363 £363 £331
90th Percentile £688 £650 £635
England median daily rate £475 £455 £450
% change year-on-year +4.40% +1.11% +9.09%
Number of hourly rates quoted 34 18 19
London median hourly rate £50.00 £36.00 £27.00
Median hourly rate % change year-on-year +38.89% +33.33% -26.21%
10th Percentile £33.78 £19.18 £13.95
90th Percentile £121.98 £53.75 £28.50
England median hourly rate £40.00 £42.50 £43.00
% change year-on-year -5.88% -1.16% +14.67%

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 16,531 23,283 22,896
As % of all contract IT jobs advertised in London 47.02% 50.21% 48.59%
Number of daily rates quoted 12,412 17,781 17,336
London median daily rate £525 £525 £500
Median daily rate % change year-on-year - +5.00% +6.38%
10th Percentile £363 £363 £350
90th Percentile £694 £675 £675
England median daily rate £488 £475 £463
% change year-on-year +2.63% +2.70% +8.82%
Number of hourly rates quoted 118 111 155
London median hourly rate £45.25 £36.00 £35.00
Median hourly rate % change year-on-year +25.69% +2.86% +5.48%
10th Percentile £18.38 £18.00 £18.01
90th Percentile £69.15 £58.75 £52.30
England median hourly rate £43.50 £42.00 £40.00
% change year-on-year +3.57% +5.00% +6.67%

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 22 November 2019.

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 22 November 2019.

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 22 November 2019. 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 -3 944 £525 +5.00% 530
West London 0 165 £450 -5.26% 230
South London +4 111 £450 - 52
East London -19 40 £538 +7.50% 94
North London 0 12 £450 +8.76% 17
JavaScript
England

For the 6 months to 22 November 2019, 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 2,138 (48.08%) Agile Software Development
2 1,946 (43.76%) HTML
3 1,798 (40.43%) CSS
4 1,580 (35.53%) React
5 1,265 (28.45%) AngularJS
6 1,210 (27.21%) Node.js
7 1,111 (24.98%) Java
8 1,089 (24.49%) TDD
9 985 (22.15%) C#
10 937 (21.07%) Front End Development
11 915 (20.58%) Finance
12 812 (18.26%) .NET
13 738 (16.60%) AWS
14 733 (16.48%) Python
15 699 (15.72%) HTML5
16 692 (15.56%) SQL
17 683 (15.36%) Git (software)
18 626 (14.08%) Azure
19 607 (13.65%) Microservices
20 584 (13.13%) DevOps
20 584 (13.13%) Redux
21 570 (12.82%) TypeScript
22 553 (12.44%) Docker
23 514 (11.56%) Continuous Integration
24 502 (11.29%) Web Services
25 501 (11.27%) Scrum
26 495 (11.13%) REST
27 488 (10.97%) Test Automation
28 466 (10.48%) User Experience
29 458 (10.30%) BDD

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
1 158 (3.55%) CMS
2 126 (2.83%) Confluence
3 124 (2.79%) Elasticsearch
4 106 (2.38%) SharePoint
5 69 (1.55%) Apache
6 62 (1.39%) IIS
7 57 (1.28%) Adobe Experience Manager
8 53 (1.19%) Apache Spark
8 53 (1.19%) WordPress
9 44 (0.99%) Drupal
10 29 (0.65%) JBoss
11 23 (0.52%) Umbraco
12 22 (0.49%) WebSphere
13 18 (0.40%) EPiServer
14 17 (0.38%) ArcGIS
14 17 (0.38%) GeoServer
15 16 (0.36%) Sitecore CMS
15 16 (0.36%) Tomcat
16 15 (0.34%) WebLogic
17 13 (0.29%) nginx
Applications
1 56 (1.26%) Photoshop
2 49 (1.10%) Sketch
3 35 (0.79%) Microsoft Excel
4 29 (0.65%) Adobe Illustrator
5 18 (0.40%) Microsoft Office
6 14 (0.31%) InVision
7 13 (0.29%) Microsoft PowerPoint
7 13 (0.29%) Zeplin
8 11 (0.25%) Adobe Creative Suite
8 11 (0.25%) Marvel
9 8 (0.18%) MS Visio
10 6 (0.13%) Chatbot
11 5 (0.11%) InDesign
12 4 (0.090%) Adobe After Effects
12 4 (0.090%) UXPin
13 2 (0.045%) InfoPath
14 1 (0.022%) Adobe Premiere
14 1 (0.022%) Adobe XD
14 1 (0.022%) Spreadsheet
14 1 (0.022%) Windchill
Business Applications
1 70 (1.57%) Dynamics CRM
2 33 (0.74%) Magento
3 17 (0.38%) Adobe Campaign
4 15 (0.34%) Shopify
5 8 (0.18%) Eloqua
5 8 (0.18%) NetSuite
6 6 (0.13%) Remedy ITSM
6 6 (0.13%) SAP Hybris
7 5 (0.11%) Distributed Ledger
7 5 (0.11%) Payment Gateway
7 5 (0.11%) R3 Corda
8 4 (0.090%) BusinessWorks
8 4 (0.090%) Oracle Cash Management
8 4 (0.090%) Visualfiles
9 3 (0.067%) Dynamics AX
9 3 (0.067%) thinkFolio
10 2 (0.045%) SAP Oil and Gas
11 1 (0.022%) Maximo
11 1 (0.022%) SDL Web 8
11 1 (0.022%) WebTrends
Cloud Services
1 738 (16.60%) AWS
2 626 (14.08%) Azure
3 203 (4.56%) GitHub
4 185 (4.16%) GCP
5 175 (3.94%) Serverless
6 134 (3.01%) npm
7 126 (2.83%) AWS Lambda
8 80 (1.80%) Amazon S3
9 79 (1.78%) SaaS
10 61 (1.37%) PaaS
11 59 (1.33%) Dynamics 365
12 52 (1.17%) Power Platform
13 48 (1.08%) Cloud Computing
13 48 (1.08%) Office 365
14 47 (1.06%) OpenShift
15 45 (1.01%) Amazon EC2
16 44 (0.99%) AWS CloudFormation
17 39 (0.88%) Adobe Analytics
17 39 (0.88%) Amazon SQS
17 39 (0.88%) Heroku
Communications & Networking
1 63 (1.42%) HTTP
2 37 (0.83%) Firewall
3 25 (0.56%) SSL
4 22 (0.49%) Internet
5 19 (0.43%) DNS
5 19 (0.43%) Intranet
6 17 (0.38%) FTP
7 16 (0.36%) TCP/IP
8 14 (0.31%) HTTPS
9 10 (0.22%) SSH
10 9 (0.20%) Network Security
11 8 (0.18%) VPN
12 7 (0.16%) Intrusion Detection
13 5 (0.11%) Reverse Proxy
13 5 (0.11%) Skype
13 5 (0.11%) SMTP
13 5 (0.11%) Wi-Fi
14 3 (0.067%) Bluetooth
14 3 (0.067%) Extranet
14 3 (0.067%) Wireless
Database & Business Intelligence
1 419 (9.42%) SQL Server
2 246 (5.53%) NoSQL
3 217 (4.88%) MySQL
4 173 (3.89%) MongoDB
5 157 (3.53%) PostgreSQL
6 126 (2.83%) Relational Database
7 86 (1.93%) Big Data
8 79 (1.78%) Amazon DynamoDB
9 63 (1.42%) Hadoop
10 61 (1.37%) SQL Server Integration Services
11 59 (1.33%) Amazon RDS
12 53 (1.19%) Blockchain
13 50 (1.12%) Redis
14 49 (1.10%) Apache Cassandra
15 42 (0.94%) Amazon Athena
16 41 (0.92%) Power BI
17 40 (0.90%) SQL Server Reporting Services
18 39 (0.88%) Neo4j
19 35 (0.79%) RDBMS
20 33 (0.74%) Oracle Database
Development Applications
1 683 (15.36%) Git (software)
2 352 (7.92%) Jenkins
3 284 (6.39%) JIRA
4 222 (4.99%) webpack
5 193 (4.34%) Selenium
6 138 (3.10%) gulp
7 137 (3.08%) Jasmine
8 133 (2.99%) Cucumber
9 126 (2.83%) TeamCity
10 123 (2.77%) Visual Studio
11 107 (2.41%) Mocha
12 96 (2.16%) Maven
13 95 (2.14%) Team Foundation Server
14 83 (1.87%) Bitbucket
15 78 (1.75%) Grunt
15 78 (1.75%) Karma Test Runner
16 75 (1.69%) Subversion
17 71 (1.60%) JUnit
17 71 (1.60%) Protractor
18 64 (1.44%) Babel
General
1 915 (20.58%) Finance
2 326 (7.33%) Banking
3 292 (6.57%) Front Office
4 188 (4.23%) Marketing
5 165 (3.71%) Retail
6 138 (3.10%) Public Sector
7 90 (2.02%) Investment Banking
8 75 (1.69%) Games
9 63 (1.42%) Law
10 53 (1.19%) Advertising
11 46 (1.03%) Publishing
12 41 (0.92%) Back Office
13 33 (0.74%) Telecoms
14 26 (0.58%) Manufacturing
15 22 (0.49%) Electronics
16 18 (0.40%) Legal
17 16 (0.36%) Financial Institution
18 13 (0.29%) Pharmaceutical
19 12 (0.27%) Police
20 11 (0.25%) Retail Banking
Job Titles
1 3,335 (74.99%) Developer
2 812 (18.26%) React Developer
3 670 (15.07%) JavaScript Developer
4 632 (14.21%) Front End Developer (Client-Side Developer)
5 555 (12.48%) Full Stack Developer
6 433 (9.74%) Senior Developer
7 322 (7.24%) Java Developer
8 289 (6.50%) Angular Developer
9 278 (6.25%) .NET Developer
10 265 (5.96%) C# Developer
11 200 (4.50%) Node.js Developer
12 187 (4.21%) Python Developer
13 172 (3.87%) Architect
14 166 (3.73%) UI Developer
15 158 (3.55%) Software Engineer
16 115 (2.59%) Senior React Developer
17 113 (2.54%) Software Developer
18 109 (2.45%) JavaScript Engineer
19 108 (2.43%) C# .NET Developer
20 102 (2.29%) HTML Developer
Libraries, Frameworks & Software Standards
1 1,946 (43.76%) HTML
2 1,798 (40.43%) CSS
3 1,580 (35.53%) React
4 1,265 (28.45%) AngularJS
5 1,210 (27.21%) Node.js
6 812 (18.26%) .NET
7 699 (15.72%) HTML5
8 584 (13.13%) Redux
9 502 (11.29%) Web Services
10 495 (11.13%) REST
11 432 (9.71%) CSS3
12 420 (9.44%) jQuery
13 357 (8.03%) Vue.js
14 335 (7.53%) ASP.NET
15 332 (7.47%) Sass
16 327 (7.35%) RESTful
17 298 (6.70%) JSON
18 270 (6.07%) Spring
19 249 (5.60%) XML
20 243 (5.46%) Twitter Bootstrap
Miscellaneous
1 466 (10.48%) User Experience
2 380 (8.55%) Greenfield Project
3 228 (5.13%) Analytical Skills
4 197 (4.43%) Mobile App
5 177 (3.98%) Derivative
6 160 (3.60%) Fixed Income
7 150 (3.37%) Foreign Exchange (FX)
8 137 (3.08%) Equities
9 101 (2.27%) Hedge funds
10 82 (1.84%) Enterprise Software
11 81 (1.82%) Data Structures
12 73 (1.64%) Algorithms
13 57 (1.28%) W3C
14 45 (1.01%) Virtual Team
15 44 (0.99%) Self-Motivation
16 41 (0.92%) Linux Command Line
17 34 (0.76%) Public Cloud
18 32 (0.72%) Blog
19 31 (0.70%) Cloud Native
20 28 (0.63%) Digital Media
Operating Systems
1 342 (7.69%) Linux
2 142 (3.19%) Windows
3 121 (2.72%) Android
4 114 (2.56%) Apple iOS
5 112 (2.52%) Unix
6 26 (0.58%) Mac OS X
6 26 (0.58%) Red Hat Enterprise Linux
7 23 (0.52%) Ubuntu
8 21 (0.47%) Windows Server
9 18 (0.40%) Debian
10 16 (0.36%) Mac OS
11 15 (0.34%) CentOS
12 11 (0.25%) openSUSE
13 9 (0.20%) CoreOS
13 9 (0.20%) Windows 10
14 6 (0.13%) VMS
14 6 (0.13%) Windows Server 2012
15 4 (0.090%) AIX
15 4 (0.090%) Windows Server 2008
16 3 (0.067%) Solaris
Processes & Methodologies
1 2,138 (48.08%) Agile Software Development
2 1,089 (24.49%) TDD
3 937 (21.07%) Front End Development
4 607 (13.65%) Microservices
5 584 (13.13%) DevOps
6 514 (11.56%) Continuous Integration
7 501 (11.27%) Scrum
8 488 (10.97%) Test Automation
9 458 (10.30%) BDD
10 446 (10.03%) Software Engineering
11 426 (9.58%) MVC
12 384 (8.64%) OO
13 334 (7.51%) Web Development
14 325 (7.31%) E-Commerce
15 296 (6.66%) Fintech
16 259 (5.82%) Analytics
17 254 (5.71%) Unit Testing
18 245 (5.51%) Open Source
19 236 (5.31%) Problem-Solving
20 216 (4.86%) Computer Science
Programming Languages
1 1,111 (24.98%) Java
2 985 (22.15%) C#
3 733 (16.48%) Python
4 692 (15.56%) SQL
5 570 (12.82%) TypeScript
6 418 (9.40%) ES6
7 249 (5.60%) Ruby
8 231 (5.19%) PHP
9 157 (3.53%) C++
10 150 (3.37%) Java 8
11 119 (2.68%) Scala
12 102 (2.29%) Go
13 82 (1.84%) R
14 77 (1.73%) PowerShell
14 77 (1.73%) T-SQL
15 68 (1.53%) Bash Shell
16 52 (1.17%) Kotlin
17 47 (1.06%) PL/SQL
18 44 (0.99%) Perl
19 43 (0.97%) ES7
Qualifications
1 239 (5.37%) Degree
2 200 (4.50%) Security Cleared
3 152 (3.42%) SC Cleared
4 82 (1.84%) Computer Science Degree
5 28 (0.63%) Master's Degree
6 20 (0.45%) BPSS Clearance
7 18 (0.40%) DV Cleared
8 14 (0.31%) DBS Check
9 10 (0.22%) Numerate Degree
10 9 (0.20%) ISTQB
11 7 (0.16%) AWS Certification
12 6 (0.13%) CTC Cleared
12 6 (0.13%) HND
13 5 (0.11%) BC Cleared
13 5 (0.11%) Microsoft Certification
14 4 (0.090%) ISEB
15 3 (0.067%) PMI Certification
15 3 (0.067%) TOGAF Certification
16 2 (0.045%) CEH
16 2 (0.045%) CISSP
Quality Assurance & Compliance
1 174 (3.91%) QA
2 71 (1.60%) WCAG
3 16 (0.36%) ISO/IEC 27001
4 15 (0.34%) NIST
5 14 (0.31%) MiFID
5 14 (0.31%) SLA
6 11 (0.25%) COBIT
7 9 (0.20%) Data Quality
8 7 (0.16%) GDPR
9 5 (0.11%) WAI
10 3 (0.067%) NIST 800
10 3 (0.067%) PSD2
11 2 (0.045%) Disclosure Scotland
11 2 (0.045%) IFRS
11 2 (0.045%) Section 508
12 1 (0.022%) EMIR
12 1 (0.022%) HL7
12 1 (0.022%) PMO
System Software
1 553 (12.44%) Docker
2 31 (0.70%) Active Directory
3 14 (0.31%) Virtual Machines
4 11 (0.25%) HDFS
4 11 (0.25%) VMware Infrastructure
5 5 (0.11%) OpenAM
5 5 (0.11%) OpenDJ
6 3 (0.067%) Varnish
6 3 (0.067%) VMware ESXi
7 2 (0.045%) vSphere
8 1 (0.022%) Apache ZooKeeper
8 1 (0.022%) Firmware
8 1 (0.022%) GridGain
8 1 (0.022%) Hyper-V
8 1 (0.022%) LXC
8 1 (0.022%) Oracle RAC
8 1 (0.022%) VirtualBox
8 1 (0.022%) Xen
8 1 (0.022%) zsh
Systems Management
1 260 (5.85%) Kubernetes
2 178 (4.00%) Terraform
3 112 (2.52%) Ansible
4 48 (1.08%) Puppet
5 34 (0.76%) Grafana
6 31 (0.70%) Kibana
7 22 (0.49%) Opscode Chef
8 20 (0.45%) logstash
8 20 (0.45%) Single Sign-On
9 19 (0.43%) Salt
10 14 (0.31%) ZABBIX
11 13 (0.29%) Graphite
11 13 (0.29%) Nessus
12 12 (0.27%) MIIS
13 10 (0.22%) Consul
14 9 (0.20%) Docker Swarm
15 7 (0.16%) HP Fortify
15 7 (0.16%) ITRS Geneos
15 7 (0.16%) Nagios
16 6 (0.13%) Hadoop YARN
Vendors
1 355 (7.98%) Microsoft
2 204 (4.59%) Oracle
3 170 (3.82%) Google
4 140 (3.15%) Adobe
5 99 (2.23%) ServiceNow
6 62 (1.39%) Salesforce.com
7 46 (1.03%) Atlassian
8 42 (0.94%) Cypress Semiconductor
9 40 (0.90%) Bloomberg
9 40 (0.90%) Reuters
9 40 (0.90%) Splunk
10 39 (0.88%) Remedy
11 36 (0.81%) SAP
12 32 (0.72%) Sitecore
13 28 (0.63%) hybris
13 28 (0.63%) Red Hat
14 22 (0.49%) IBM
15 21 (0.47%) Tableau
16 18 (0.40%) ESRI
16 18 (0.40%) New Relic